author | emcmanus |
Mon, 03 Mar 2008 10:32:38 +0100 | |
changeset 34 | 2d042367885f |
parent 25 | 74fe6922716d |
child 35 | 935f747e70d3 |
child 36 | 86095028f162 |
--- a/jdk/src/share/classes/com/sun/jmx/mbeanserver/Introspector.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/com/sun/jmx/mbeanserver/Introspector.java Mon Mar 03 10:32:38 2008 +0100 @@ -43,6 +43,13 @@ import javax.management.NotCompliantMBeanException; import com.sun.jmx.mbeanserver.Util; +import com.sun.jmx.remote.util.EnvHelp; +import java.beans.BeanInfo; +import java.beans.PropertyDescriptor; +import java.lang.reflect.Array; +import java.lang.reflect.InvocationTargetException; +import javax.management.AttributeNotFoundException; +import javax.management.openmbean.CompositeData; /** * This class contains the methods for performing all the tests needed to verify @@ -482,4 +489,33 @@ return null; } + + public static Object elementFromComplex(Object complex, String element) + throws AttributeNotFoundException { + try { + if (complex.getClass().isArray() && element.equals("length")) { + return Array.getLength(complex); + } else if (complex instanceof CompositeData) { + return ((CompositeData) complex).get(element); + } else { + // Java Beans introspection + // + BeanInfo bi = java.beans.Introspector.getBeanInfo(complex.getClass()); + PropertyDescriptor[] pds = bi.getPropertyDescriptors(); + for (PropertyDescriptor pd : pds) + if (pd.getName().equals(element)) + return pd.getReadMethod().invoke(complex); + throw new AttributeNotFoundException( + "Could not find the getter method for the property " + + element + " using the Java Beans introspector"); + } + } catch (InvocationTargetException e) { + throw new IllegalArgumentException(e); + } catch (AttributeNotFoundException e) { + throw e; + } catch (Exception e) { + throw EnvHelp.initCause( + new AttributeNotFoundException(e.getMessage()), e); + } + } }
--- a/jdk/src/share/classes/javax/management/AndQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/AndQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -104,4 +104,25 @@ return "(" + exp1 + ") and (" + exp2 + ")"; } - } + @Override + String toQueryString() { + // Parentheses are only added if needed to disambiguate. + return parens(exp1) + " and " + parens(exp2); + } + + // Add parens if needed to disambiguate an expression such as + // Query.and(Query.or(a, b), c). We need to return + // (a or b) and c + // in such a case, because + // a or b and c + // would mean + // a or (b and c) + private static String parens(QueryExp exp) { + String s = Query.toString(exp); + if (exp instanceof OrQueryExp) + return "(" + s + ")"; + else + return s; + } + +}
--- a/jdk/src/share/classes/javax/management/AttributeValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/AttributeValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -26,12 +26,17 @@ package javax.management; -// RI import -import javax.management.MBeanServer; +import com.sun.jmx.mbeanserver.Introspector; +import java.io.IOException; +import java.io.ObjectInputStream; /** - * Represents attributes used as arguments to relational constraints. - * An <CODE>AttributeValueExp</CODE> may be used anywhere a <CODE>ValueExp</CODE> is required. + * <p>Represents attributes used as arguments to relational constraints. + * Instances of this class are usually obtained using {@link Query#attr(String) + * Query.attr}.</p> + * + * <p>An <CODE>AttributeValueExp</CODE> may be used anywhere a + * <CODE>ValueExp</CODE> is required. * * @since 1.5 */ @@ -46,6 +51,8 @@ */ private String attr; + private transient int dotIndex; + /** * An <code>AttributeValueExp</code> with a null attribute. * @deprecated An instance created with this constructor cannot be @@ -64,6 +71,18 @@ */ public AttributeValueExp(String attr) { this.attr = attr; + setDotIndex(); + } + + private void setDotIndex() { + if (attr != null) + dotIndex = attr.indexOf('.'); + } + + private void readObject(ObjectInputStream in) + throws ClassNotFoundException, IOException { + in.defaultReadObject(); + setDotIndex(); } /** @@ -76,7 +95,13 @@ } /** - * Applies the <CODE>AttributeValueExp</CODE> on an MBean. + * <p>Applies the <CODE>AttributeValueExp</CODE> on an MBean. + * This method calls {@link #getAttribute getAttribute(name)} and wraps + * the result as a {@code ValueExp}. The value returned by + * {@code getAttribute} must be a {@code Number}, {@code String}, + * or {@code Boolean}; otherwise this method throws a + * {@code BadAttributeValueExpException}, which will cause + * the containing query to be false for this {@code name}.</p> * * @param name The name of the MBean on which the <CODE>AttributeValueExp</CODE> will be applied. * @@ -88,6 +113,7 @@ * @exception BadBinaryOpValueExpException * */ + @Override public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException, BadAttributeValueExpException, InvalidApplicationException { Object result = getAttribute(name); @@ -106,8 +132,9 @@ /** * Returns the string representing its value. */ + @Override public String toString() { - return attr; + return QueryParser.quoteId(attr); } @@ -115,18 +142,38 @@ * Sets the MBean server on which the query is to be performed. * * @param s The MBean server on which the query is to be performed. + * + * @deprecated This method has no effect. The MBean Server used to + * obtain an attribute value is {@link QueryEval#getMBeanServer()}. */ /* There is no need for this method, because if a query is being evaluted an AttributeValueExp can only appear inside a QueryExp, and that QueryExp will itself have done setMBeanServer. */ + @Deprecated + @Override public void setMBeanServer(MBeanServer s) { } /** - * Return the value of the given attribute in the named MBean. + * <p>Return the value of the given attribute in the named MBean. * If the attempt to access the attribute generates an exception, - * return null. + * return null.</p> + * + * <p>Let <em>n</em> be the {@linkplain #getAttributeName attribute + * name}. Then this method proceeds as follows. First it calls + * {@link MBeanServer#getAttribute getAttribute(name, <em>n</em>)}. If that + * generates an {@link AttributeNotFoundException}, and if <em>n</em> + * contains at least one dot ({@code .}), then the method calls {@code + * getAttribute(name, }<em>n</em>{@code .substring(0, }<em>n</em>{@code + * .indexOf('.')))}; in other words it calls {@code getAttribute} + * with the substring of <em>n</em> before the first dot. Then it + * extracts a component from the retrieved value, as described in the <a + * href="monitor/package-summary.html#complex">documentation for the {@code + * monitor} package</a>.</p> + * + * <p>The MBean Server used is the one returned by {@link + * QueryEval#getMBeanServer()}.</p> * * @param name the name of the MBean whose attribute is to be returned. * @@ -139,10 +186,34 @@ MBeanServer server = QueryEval.getMBeanServer(); + try { return server.getAttribute(name, attr); + } catch (AttributeNotFoundException e) { + if (dotIndex < 0) + throw e; + } + + String toGet = attr.substring(0, dotIndex); + + Object value = server.getAttribute(name, toGet); + + return extractElement(value, attr.substring(dotIndex + 1)); } catch (Exception re) { return null; } } + private Object extractElement(Object value, String elementWithDots) + throws AttributeNotFoundException { + while (true) { + int dot = elementWithDots.indexOf('.'); + String element = (dot < 0) ? + elementWithDots : elementWithDots.substring(0, dot); + value = Introspector.elementFromComplex(value, element); + if (dot < 0) + return value; + elementWithDots = elementWithDots.substring(dot + 1); + } + } + }
--- a/jdk/src/share/classes/javax/management/BetweenQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/BetweenQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -109,34 +109,25 @@ ValueExp val1 = exp1.apply(name); ValueExp val2 = exp2.apply(name); ValueExp val3 = exp3.apply(name); - String sval1; - String sval2; - String sval3; - double dval1; - double dval2; - double dval3; - long lval1; - long lval2; - long lval3; boolean numeric = val1 instanceof NumericValueExp; if (numeric) { if (((NumericValueExp)val1).isLong()) { - lval1 = ((NumericValueExp)val1).longValue(); - lval2 = ((NumericValueExp)val2).longValue(); - lval3 = ((NumericValueExp)val3).longValue(); + long lval1 = ((NumericValueExp)val1).longValue(); + long lval2 = ((NumericValueExp)val2).longValue(); + long lval3 = ((NumericValueExp)val3).longValue(); return lval2 <= lval1 && lval1 <= lval3; } else { - dval1 = ((NumericValueExp)val1).doubleValue(); - dval2 = ((NumericValueExp)val2).doubleValue(); - dval3 = ((NumericValueExp)val3).doubleValue(); + double dval1 = ((NumericValueExp)val1).doubleValue(); + double dval2 = ((NumericValueExp)val2).doubleValue(); + double dval3 = ((NumericValueExp)val3).doubleValue(); return dval2 <= dval1 && dval1 <= dval3; } } else { - sval1 = ((StringValueExp)val1).toString(); - sval2 = ((StringValueExp)val2).toString(); - sval3 = ((StringValueExp)val3).toString(); + String sval1 = ((StringValueExp)val1).getValue(); + String sval2 = ((StringValueExp)val2).getValue(); + String sval3 = ((StringValueExp)val3).getValue(); return sval2.compareTo(sval1) <= 0 && sval1.compareTo(sval3) <= 0; } } @@ -148,4 +139,8 @@ return "(" + exp1 + ") between (" + exp2 + ") and (" + exp3 + ")"; } - } + @Override + String toQueryString() { + return exp1 + " between " + exp2 + " and " + exp3; + } +}
--- a/jdk/src/share/classes/javax/management/BinaryOpValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/BinaryOpValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -167,12 +167,74 @@ */ public String toString() { try { - return exp1 + " " + opString() + " " + exp2; + return parens(exp1, true) + " " + opString() + " " + parens(exp2, false); } catch (BadBinaryOpValueExpException ex) { return "invalid expression"; } } + /* + * Add parentheses to the given subexpression if necessary to + * preserve meaning. Suppose this BinaryOpValueExp is + * Query.times(Query.plus(Query.attr("A"), Query.attr("B")), Query.attr("C")). + * Then the original toString() logic would return A + B * C. + * We check precedences in order to return (A + B) * C, which is the + * meaning of the ValueExp. + * + * We need to add parentheses if the unparenthesized expression would + * be parsed as a different ValueExp from the original. + * We cannot omit parentheses even when mathematically + * the result would be equivalent, because we do not know whether the + * numeric values will be integer or floating-point. Addition and + * multiplication are associative for integers but not always for + * floating-point. + * + * So the rule is that we omit parentheses if the ValueExp + * is (A op1 B) op2 C and the precedence of op1 is greater than or + * equal to that of op2; or if the ValueExp is A op1 (B op2 C) and + * the precedence of op2 is greater than that of op1. (There are two + * precedences: that of * and / is greater than that of + and -.) + * The case of (A op1 B) op2 (C op3 D) applies each rule in turn. + * + * The following examples show the rules in action. On the left, + * the original ValueExp. On the right, the string representation. + * + * (A + B) + C A + B + C + * (A * B) + C A * B + C + * (A + B) * C (A + B) * C + * (A * B) * C A * B * C + * A + (B + C) A + (B + C) + * A + (B * C) A + B * C + * A * (B + C) A * (B + C) + * A * (B * C) A * (B * C) + */ + private String parens(ValueExp subexp, boolean left) + throws BadBinaryOpValueExpException { + boolean omit; + if (subexp instanceof BinaryOpValueExp) { + int subop = ((BinaryOpValueExp) subexp).op; + if (left) + omit = (precedence(subop) >= precedence(op)); + else + omit = (precedence(subop) > precedence(op)); + } else + omit = true; + + if (omit) + return subexp.toString(); + else + return "(" + subexp + ")"; + } + + private int precedence(int xop) throws BadBinaryOpValueExpException { + switch (xop) { + case Query.PLUS: case Query.MINUS: return 0; + case Query.TIMES: case Query.DIV: return 1; + default: + throw new BadBinaryOpValueExpException(this); + } + } + private String opString() throws BadBinaryOpValueExpException { switch (op) { case Query.PLUS: @@ -188,4 +250,10 @@ throw new BadBinaryOpValueExpException(this); } + @Deprecated + public void setMBeanServer(MBeanServer s) { + super.setMBeanServer(s); } + + + }
--- a/jdk/src/share/classes/javax/management/BinaryRelQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/BinaryRelQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -108,20 +108,12 @@ BadAttributeValueExpException, InvalidApplicationException { Object val1 = exp1.apply(name); Object val2 = exp2.apply(name); - String sval1; - String sval2; - double dval1; - double dval2; - long lval1; - long lval2; - boolean bval1; - boolean bval2; boolean numeric = val1 instanceof NumericValueExp; boolean bool = val1 instanceof BooleanValueExp; if (numeric) { if (((NumericValueExp)val1).isLong()) { - lval1 = ((NumericValueExp)val1).longValue(); - lval2 = ((NumericValueExp)val2).longValue(); + long lval1 = ((NumericValueExp)val1).longValue(); + long lval2 = ((NumericValueExp)val2).longValue(); switch (relOp) { case Query.GT: @@ -136,8 +128,8 @@ return lval1 == lval2; } } else { - dval1 = ((NumericValueExp)val1).doubleValue(); - dval2 = ((NumericValueExp)val2).doubleValue(); + double dval1 = ((NumericValueExp)val1).doubleValue(); + double dval2 = ((NumericValueExp)val2).doubleValue(); switch (relOp) { case Query.GT: @@ -155,8 +147,8 @@ } else if (bool) { - bval1 = ((BooleanValueExp)val1).getValue().booleanValue(); - bval2 = ((BooleanValueExp)val2).getValue().booleanValue(); + boolean bval1 = ((BooleanValueExp)val1).getValue().booleanValue(); + boolean bval2 = ((BooleanValueExp)val2).getValue().booleanValue(); switch (relOp) { case Query.GT: @@ -172,8 +164,8 @@ } } else { - sval1 = ((StringValueExp)val1).getValue(); - sval2 = ((StringValueExp)val2).getValue(); + String sval1 = ((StringValueExp)val1).getValue(); + String sval2 = ((StringValueExp)val2).getValue(); switch (relOp) { case Query.GT: @@ -199,6 +191,11 @@ return "(" + exp1 + ") " + relOpString() + " (" + exp2 + ")"; } + @Override + String toQueryString() { + return exp1 + " " + relOpString() + " " + exp2; + } + private String relOpString() { switch (relOp) { case Query.GT:
--- a/jdk/src/share/classes/javax/management/BooleanValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/BooleanValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -84,4 +84,10 @@ return this; } + @Deprecated + public void setMBeanServer(MBeanServer s) { + super.setMBeanServer(s); + } + + }
--- a/jdk/src/share/classes/javax/management/InQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/InQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -91,21 +91,23 @@ * @exception BadAttributeValueExpException * @exception InvalidApplicationException */ - public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException, + public boolean apply(ObjectName name) + throws BadStringOperationException, BadBinaryOpValueExpException, BadAttributeValueExpException, InvalidApplicationException { if (valueList != null) { ValueExp v = val.apply(name); boolean numeric = v instanceof NumericValueExp; - for (int i = 0; i < valueList.length; i++) { + for (ValueExp element : valueList) { + element = element.apply(name); if (numeric) { - if (((NumericValueExp)valueList[i]).doubleValue() == - ((NumericValueExp)v).doubleValue()) { + if (((NumericValueExp) element).doubleValue() == + ((NumericValueExp) v).doubleValue()) { return true; } } else { - if (((StringValueExp)valueList[i]).getValue().equals( - ((StringValueExp)v).getValue())) { + if (((StringValueExp) element).getValue().equals( + ((StringValueExp) v).getValue())) { return true; } }
--- a/jdk/src/share/classes/javax/management/MatchQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/MatchQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -113,7 +113,32 @@ } private static String likeTranslate(String s) { - return s.replace('?', '_').replace('*', '%'); + StringBuilder sb = new StringBuilder(); + int c; + for (int i = 0; i < s.length(); i += Character.charCount(c)) { + c = s.codePointAt(i); + switch (c) { + case '\\': + i += Character.charCount(c); + sb.append('\\'); + if (i < s.length()) { + c = s.codePointAt(i); + sb.appendCodePoint(c); + } + break; + case '*': + sb.append('%'); break; + case '?': + sb.append('_'); break; + case '%': + sb.append("\\%"); break; + case '_': + sb.append("\\_"); break; + default: + sb.appendCodePoint(c); break; + } + } + return sb.toString(); } /*
--- a/jdk/src/share/classes/javax/management/NotQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/NotQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -86,8 +86,14 @@ /** * Returns the string representing the object. */ + @Override public String toString() { return "not (" + exp + ")"; } + @Override + String toQueryString() { + return "not (" + Query.toString(exp) + ")"; + } + }
--- a/jdk/src/share/classes/javax/management/NumericValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/NumericValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -151,11 +151,18 @@ * Returns the string representing the object */ public String toString() { + if (val == null) + return "null"; if (val instanceof Long || val instanceof Integer) { - return String.valueOf(val.longValue()); + return Long.toString(val.longValue()); } - return String.valueOf(val.doubleValue()); + double d = val.doubleValue(); + if (Double.isInfinite(d)) + return (d > 0) ? "(1.0 / 0.0)" : "(-1.0 / 0.0)"; + if (Double.isNaN(d)) + return "(0.0 / 0.0)"; + return Double.toString(d); } /** @@ -244,4 +251,10 @@ out.defaultWriteObject(); } } + + @Deprecated + public void setMBeanServer(MBeanServer s) { + super.setMBeanServer(s); + } + }
--- a/jdk/src/share/classes/javax/management/ObjectName.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/ObjectName.java Mon Mar 03 10:32:38 2008 +0100 @@ -222,7 +222,8 @@ * @since 1.5 */ @SuppressWarnings("serial") // don't complain serialVersionUID not constant -public class ObjectName implements Comparable<ObjectName>, QueryExp { +public class ObjectName extends ToQueryString + implements Comparable<ObjectName>, QueryExp { /** * A structure recording property structure and @@ -1779,10 +1780,16 @@ * * @return a string representation of this object name. */ + @Override public String toString() { return getSerializedNameString(); } + @Override + String toQueryString() { + return "LIKE " + Query.value(toString()); + } + /** * Compares the current object name with another object name. Two * ObjectName instances are equal if and only if their canonical
--- a/jdk/src/share/classes/javax/management/OrQueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/OrQueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -98,9 +98,29 @@ } /** - * Returns a string representation of this AndQueryExp + * Returns a string representation of this OrQueryExp */ public String toString() { return "(" + exp1 + ") or (" + exp2 + ")"; } + + @Override + String toQueryString() { + return parens(exp1) + " or " + parens(exp2); + } + + // Add parentheses to avoid possible confusion. If we have an expression + // such as Query.or(Query.and(a, b), c), then we return + // (a and b) or c + // rather than just + // a and b or c + // In fact the precedence rules are such that the parentheses are not + // strictly necessary, but omitting them would be confusing. + private static String parens(QueryExp exp) { + String s = Query.toString(exp); + if (exp instanceof AndQueryExp) + return "(" + s + ")"; + else + return s; + } }
--- a/jdk/src/share/classes/javax/management/QualifiedAttributeValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/QualifiedAttributeValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -27,9 +27,11 @@ /** - * This class represents indexed attributes used as arguments to relational - * constraints. An QualifiedAttributeValueExp may be used anywhere a - * ValueExp is required. + * <p>Represents attributes used as arguments to relational constraints, + * where the attribute must be in an MBean of a specified {@linkplain + * MBeanInfo#getClassName() class}. A QualifiedAttributeValueExp may be used + * anywhere a ValueExp is required. + * * @serial include * * @since 1.5 @@ -48,7 +50,9 @@ /** * Basic Constructor. + * @deprecated see {@link AttributeValueExp#AttributeValueExp()} */ + @Deprecated public QualifiedAttributeValueExp() { } @@ -81,6 +85,7 @@ * @exception BadAttributeValueExpException * @exception InvalidApplicationException */ + @Override public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException, BadAttributeValueExpException, InvalidApplicationException { try { @@ -105,9 +110,11 @@ /** * Returns the string representing its value */ + @Override public String toString() { if (className != null) { - return className + "." + super.toString(); + return QueryParser.quoteId(className) + "#" + + QueryParser.quoteId(super.toString()); } else { return super.toString(); }
--- a/jdk/src/share/classes/javax/management/Query.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/Query.java Mon Mar 03 10:32:38 2008 +0100 @@ -27,19 +27,346 @@ /** - * <p>Constructs query object constraints. The static methods provided - * return query expressions that may be used in listing and - * enumerating MBeans. Individual constraint construction methods - * allow only appropriate types as arguments. Composition of calls can - * construct arbitrary nestings of constraints, as the following - * example illustrates:</p> + * <p>Constructs query object constraints.</p> + * + * <p>The MBean Server can be queried for MBeans that meet a particular + * condition, using its {@link MBeanServer#queryNames queryNames} or + * {@link MBeanServer#queryMBeans queryMBeans} method. The {@link QueryExp} + * parameter to the method can be any implementation of the interface + * {@code QueryExp}, but it is usually best to obtain the {@code QueryExp} + * value by calling the static methods in this class. This is particularly + * true when querying a remote MBean Server: a custom implementation of the + * {@code QueryExp} interface might not be present in the remote MBean Server, + * but the methods in this class return only standard classes that are + * part of the JMX implementation.</p> + * + * <p>There are two ways to create {@code QueryExp} objects using the methods + * in this class. The first is to build them by chaining together calls to + * the various methods. The second is to use the Query Language described + * <a href="#ql">below</a> and produce the {@code QueryExp} by calling + * {@link #fromString Query.fromString}. The two ways are equivalent: + * every {@code QueryExp} returned by {@code fromString} can also be + * constructed by chaining method calls.</p> + * + * <p>As an example, suppose you wanted to find all MBeans where the {@code + * Enabled} attribute is {@code true} and the {@code Owner} attribute is {@code + * "Duke"}. Here is how you could construct the appropriate {@code QueryExp} by + * chaining together method calls:</p> + * + * <pre> + * QueryExp query = + * Query.and(Query.eq(Query.attr("Enabled"), Query.value(true)), + * Query.eq(Query.attr("Owner"), Query.value("Duke"))); + * </pre> + * + * <p>Here is how you could construct the same {@code QueryExp} using the + * Query Language:</p> * * <pre> - * QueryExp exp = Query.and(Query.gt(Query.attr("age"),Query.value(5)), - * Query.match(Query.attr("name"), - * Query.value("Smith"))); + * QueryExp query = Query.fromString("Enabled = true and Owner = 'Duke'"); * </pre> * + * <p>The principal advantage of the method-chaining approach is that the + * compiler will check that the query makes sense. The principal advantage + * of the Query Language approach is that it is easier to write and especially + * read.</p> + * + * + * <h4 id="ql">Query Language</h4> + * + * <p>The query language is closely modeled on the WHERE clause of + * SQL SELECT statements. The formal specification of the language + * appears <a href="#formal-ql">below</a>, but it is probably easier to + * understand it with examples such as the following.</p> + * + * <dl> + * <dt>{@code Message = 'OK'} + * <dd>Selects MBeans that have a {@code Message} attribute whose value + * is the string {@code OK}. + * + * <dt>{@code FreeSpacePercent < 10} + * <dd>Selects MBeans that have a {@code FreeSpacePercent} attribute whose + * value is a number less than 10. + * + * <dt>{@code FreeSpacePercent < 10 and WarningSent = false} + * <dd>Selects the same MBeans as the previous example, but they must + * also have a boolean attribute {@code WarningSent} whose value + * is false. + * + * <dt>{@code SpaceUsed > TotalSpace * (2.0 / 3.0)} + * <dd>Selects MBeans that have {@code SpaceUsed} and {@code TotalSpace} + * attributes where the first is more than two-thirds the second. + * + * <dt>{@code not (FreeSpacePercent between 10 and 90)} + * <dd>Selects MBeans that have a {@code FreeSpacePercent} attribute whose + * value is not between 10 and 90, inclusive. + * + * <dt>{@code FreeSpacePercent not between 10 and 90} + * <dd>Another way of writing the previous query. + * + * <dt>{@code Status in ('STOPPED', 'STARTING', 'STARTED')} + * <dd>Selects MBeans that have a {@code Status} attribute whose value + * is one of those three strings. + * + * <dt>{@code Message like 'OK: %'} + * <dd>Selects MBeans that have a {@code Message} attribute whose value + * is a string beginning with {@code "OK: "}. <b>Notice that the + * wildcard characters are SQL's ones.</b> In the query language, + * {@code %} means "any sequence of characters" and {@code _} + * means "any single character". In the rest of the JMX API, these + * correspond to {@code *} and {@code %} respectively. + * + * <dt>{@code instanceof 'javax.management.NotificationBroadcaster'} + * <dd>Selects MBeans that are instances of + * {@link javax.management.NotificationBroadcaster}, as reported by + * {@link javax.management.MBeanServer#isInstanceOf MBeanServer.isInstanceOf}. + * + * <dt>{@code like 'mydomain:*'} + * <dd>Selects MBeans whose {@link ObjectName}s have the domain {@code mydomain}. + * + * </dl> + * + * <p>The last two examples do not correspond to valid SQL syntax, but all + * the others do.</p> + * + * <p>The remainder of this description is a formal specification of the + * query language.</p> + * + * + * <h4 id="formal-ql">Lexical elements</h4> + * + * <p>Keywords such as <b>and</b>, <b>like</b>, and <b>between</b> are not + * case sensitive. You can write <b>between</b>, <b>BETWEEN</b>, or + * <b>BeTwEeN</b> with the same effect.</p> + * + * <p>On the other hand, attribute names <i>are</i> case sensitive. The + * attribute {@code Name} is not the same as the attribute {@code name}.</p> + * + * <p>To access an attribute whose name, ignoring case, is the same as one of + * the keywords {@code not}, {@code instanceof}, {@code like}, {@code true}, + * or {@code false}, you can use double quotes, for example {@code "not"}. + * Double quotes can also be used to include non-identifier characters in + * the name of an attribute, for example {@code "attribute-name-with-hyphens"}. + * To include the double quote character in the attribute name, write it + * twice. {@code "foo""bar""baz"} represents the attribute called + * {@code foo"bar"baz}. + * + * <p>String constants are written with single quotes like {@code 'this'}. A + * single quote within a string constant must be doubled, for example + * {@code 'can''t'}.</p> + * + * <p>Integer constants are written as a sequence of decimal digits, + * optionally preceded by a plus or minus sign. An integer constant must be + * a valid input to {@link Long#valueOf(String)}.</p> + * + * <p>Floating-point constants are written using the Java syntax. A + * floating-point constant must be a valid input to + * {@link Double#valueOf(String)}.</p> + * + * <p>A boolean constant is either {@code true} or {@code false}, ignoring + * case.</p> + * + * <p>Spaces cannot appear inside identifiers (unless written with double + * quotes) or keywords or multi-character tokens such as {@code <=}. Spaces can + * appear anywhere else, but are not required except to separate tokens. For + * example, the query {@code a < b and 5 = c} could also be written {@code a<b + * and 5=c}, but no further spaces can be removed.</p> + * + * + * <h4 id="grammar-ql">Grammar</h4> + * + * <dl> + * <dt id="query">query: + * <dd><a href="#andquery">andquery</a> [<b>OR</b> <a href="#query">query</a>] + * + * <dt id="andquery">andquery: + * <dd><a href="#predicate">predicate</a> [<b>AND</b> <a href="#andquery">andquery</a>] + * + * <dt id="predicate">predicate: + * <dd><b>(</b> <a href="#query">query</a> <b>)</b> |<br> + * <b>NOT</b> <a href="#predicate">predicate</a> |<br> + * <b>INSTANCEOF</b> <a href="#stringvalue">stringvalue</a> |<br> + * <b>LIKE</b> <a href="#objectnamepattern">objectnamepattern</a> |<br> + * <a href="#value">value</a> <a href="#predrhs">predrhs</a> + * + * <dt id="predrhs">predrhs: + * <dd><a href="#compare">compare</a> <a href="#value">value</a> |<br> + * [<b>NOT</b>] <b>BETWEEN</b> <a href="#value">value</a> <b>AND</b> + * <a href="#value">value</a> |<br> + * [<b>NOT</b>] <b>IN (</b> <a href="#value">value</a> + * <a href="#commavalues">commavalues</a> <b>)</b> |<br> + * [<b>NOT</b>] <b>LIKE</b> <a href="#stringvalue">stringvalue</a> + * + * <dt id="commavalues">commavalues: + * <dd>[ <b>,</b> <a href="#value">value</a> <a href="#commavalues">commavalues</a> ] + * + * <dt id="compare">compare: + * <dd><b>=</b> | <b><</b> | <b>></b> | + * <b><=</b> | <b>>=</b> | <b><></b> | <b>!=</b> + * + * <dt id="value">value: + * <dd><a href="#factor">factor</a> [<a href="#plusorminus">plusorminus</a> + * <a href="#value">value</a>] + * + * <dt id="plusorminus">plusorminus: + * <dd><b>+</b> | <b>-</b> + * + * <dt id="factor">factor: + * <dd><a href="#term">term</a> [<a href="#timesordivide">timesordivide</a> + * <a href="#factor">factor</a>] + * + * <dt id="timesordivide">timesordivide: + * <dd><b>*</b> | <b>/</b> + * + * <dt id="term">term: + * <dd><a href="#attr">attr</a> | <a href="#literal">literal</a> | + * <b>(</b> <a href="#value">value</a> <b>)</b> + * + * <dt id="attr">attr: + * <dd><a href="#name">name</a> [<b>#</b> <a href="#name">name</a>] + * + * <dt id="name">name: + * <dd><a href="#identifier">identifier</a> [<b>.</b><a href="#name">name</a>] + * + * <dt id="identifier">identifier: + * <dd><i>Java-identifier</i> | <i>double-quoted-identifier</i> + * + * <dt id="literal">literal: + * <dd><a href="#booleanlit">booleanlit</a> | <i>longlit</i> | + * <i>doublelit</i> | <i>stringlit</i> + * + * <dt id="booleanlit">booleanlit: + * <dd><b>FALSE</b> | <b>TRUE</b> + * + * <dt id="stringvalue">stringvalue: + * <dd><i>stringlit</i> + * + * <dt id="objectnamepattern">objectnamepattern: + * <dd><i>stringlit</i> + * + * </dl> + * + * + * <h4>Semantics</h4> + * + * <p>The meaning of the grammar is described in the table below. + * This defines a function <i>q</i> that maps a string to a Java object + * such as a {@link QueryExp} or a {@link ValueExp}.</p> + * + * <table border="1" cellpadding="5"> + * <tr><th>String <i>s</i></th><th><i>q(s)</th></tr> + * + * <tr><td><i>query1</i> <b>OR</b> <i>query2</i> + * <td>{@link Query#or Query.or}(<i>q(query1)</i>, <i>q(query2)</i>) + * + * <tr><td><i>query1</i> <b>AND</b> <i>query2</i> + * <td>{@link Query#and Query.and}(<i>q(query1)</i>, <i>q(query2)</i>) + * + * <tr><td><b>(</b> <i>queryOrValue</i> <b>)</b> + * <td><i>q(queryOrValue)</i> + * + * <tr><td><b>NOT</b> <i>query</i> + * <td>{@link Query#not Query.not}(<i>q(query)</i>) + * + * <tr><td><b>INSTANCEOF</b> <i>stringLiteral</i> + * <td>{@link Query#isInstanceOf Query.isInstanceOf}(<!-- + * -->{@link Query#value(String) Query.value}(<i>q(stringLiteral)</i>)) + * + * <tr><td><b>LIKE</b> <i>stringLiteral</i> + * <td>{@link ObjectName#ObjectName(String) new ObjectName}(<!-- + * --><i>q(stringLiteral)</i>) + * + * <tr><td><i>value1</i> <b>=</b> <i>value2</i> + * <td>{@link Query#eq Query.eq}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b><</b> <i>value2</i> + * <td>{@link Query#lt Query.lt}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b>></b> <i>value2</i> + * <td>{@link Query#gt Query.gt}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b><=</b> <i>value2</i> + * <td>{@link Query#leq Query.leq}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b>>=</b> <i>value2</i> + * <td>{@link Query#geq Query.geq}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b><></b> <i>value2</i> + * <td>{@link Query#not Query.not}({@link Query#eq Query.eq}(<!-- + * --><i>q(value1)</i>, <i>q(value2)</i>)) + * + * <tr><td><i>value1</i> <b>!=</b> <i>value2</i> + * <td>{@link Query#not Query.not}({@link Query#eq Query.eq}(<!-- + * --><i>q(value1)</i>, <i>q(value2)</i>)) + * + * <tr><td><i>value1</i> <b>BETWEEN</b> <i>value2</i> AND <i>value3</i> + * <td>{@link Query#between Query.between}(<i>q(value1)</i>, + * <i>q(value2)</i>, <i>q(value3)</i>) + * + * <tr><td><i>value1</i> <b>NOT BETWEEN</b> <i>value2</i> AND <i>value3</i> + * <td>{@link Query#not Query.not}({@link Query#between Query.between}(<!-- + * --><i>q(value1)</i>, <i>q(value2)</i>, <i>q(value3)</i>)) + * + * <tr><td><i>value1</i> <b>IN (</b> <i>value2</i>, <i>value3</i> <b>)</b> + * <td>{@link Query#in Query.in}(<i>q(value1)</i>, + * <code>new ValueExp[] {</code> + * <i>q(value2)</i>, <i>q(value3)</i><code>}</code>) + * + * <tr><td><i>value1</i> <b>NOT IN (</b> <i>value2</i>, <i>value3</i> <b>)</b> + * <td>{@link Query#not Query.not}({@link Query#in Query.in}(<i>q(value1)</i>, + * <code>new ValueExp[] {</code> + * <i>q(value2)</i>, <i>q(value3)</i><code>}</code>)) + * + * <tr><td><i>value</i> <b>LIKE</b> <i>stringLiteral</i> + * <td>{@link Query#match Query.match}(<i>q(value)</i>, + * <i><a href="#translateWildcards">translateWildcards</a>(q(stringLiteral))</i>) + * + * <tr><td><i>value</i> <b>NOT LIKE</b> <i>stringLiteral</i> + * <td>{@link Query#not Query.not}({@link Query#match Query.match}(<i>q(value)</i>, + * <i><a href="#translateWildcards">translateWildcards</a>(q(stringLiteral))</i>)) + * + * <tr><td><i>value1</i> <b>+</b> <i>value2</i> + * <td>{@link Query#plus Query.plus}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b>-</b> <i>value2</i> + * <td>{@link Query#minus Query.minus}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b>*</b> <i>value2</i> + * <td>{@link Query#times Query.times}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>value1</i> <b>/</b> <i>value2</i> + * <td>{@link Query#div Query.div}(<i>q(value1)</i>, <i>q(value2)</i>) + * + * <tr><td><i>name</i> + * <td>{@link Query#attr(String) Query.attr}(<i>q(name)</i>) + * + * <tr><td><i>name1<b>#</b>name2</i> + * <td>{@link Query#attr(String,String) Query.attr}(<i>q(name1)</i>, + * <i>q(name2)</i>) + * + * <tr><td><b>FALSE</b> + * <td>{@link Query#value(boolean) Query.value}(false) + * + * <tr><td><b>TRUE</b> + * <td>{@link Query#value(boolean) Query.value}(true) + * + * <tr><td><i>decimalLiteral</i> + * <td>{@link Query#value(long) Query.value}(<!-- + * -->{@link Long#valueOf(String) Long.valueOf}(<i>decimalLiteral</i>)) + * + * <tr><td><i>floatingPointLiteral</i> + * <td>{@link Query#value(double) Query.value}(<!-- + * -->{@link Double#valueOf(String) Double.valueOf}(<!-- + * --><i>floatingPointLiteral</i>)) + * </table> + * + * <p id="translateWildcards">Here, <i>translateWildcards</i> is a function + * that translates from the SQL notation for wildcards, using {@code %} and + * {@code _}, to the JMX API notation, using {@code *} and {@code ?}. If the + * <b>LIKE</b> string already contains {@code *} or {@code ?}, these characters + * have their literal meanings, and will be quoted in the call to + * {@link Query#match Query.match}.</p> + * * @since 1.5 */ public class Query extends Object { @@ -277,16 +604,12 @@ } /** - * <p>Returns a new attribute expression.</p> - * - * <p>Evaluating this expression for a given - * <code>objectName</code> includes performing {@link - * MBeanServer#getAttribute MBeanServer.getAttribute(objectName, - * name)}.</p> + * <p>Returns a new attribute expression. See {@link AttributeValueExp} + * for a detailed description of the semantics of the expression.</p> * * @param name The name of the attribute. * - * @return An attribute expression for the attribute named name. + * @return An attribute expression for the attribute named {@code name}. */ public static AttributeValueExp attr(String name) { return new AttributeValueExp(name); @@ -628,6 +951,63 @@ } /** + * <p>Return a string representation of the given query. The string + * returned by this method can be converted back into an equivalent + * query using {@link #fromString fromString}.</p> + * + * <p>(Two queries are equivalent if they produce the same result in + * all cases. Equivalent queries are not necessarily identical: + * for example the queries {@code Query.lt(Query.attr("A"), Query.attr("B"))} + * and {@code Query.not(Query.ge(Query.attr("A"), Query.attr("B")))} are + * equivalent but not identical.)</p> + * + * <p>The string returned by this method is only guaranteed to be converted + * back into an equivalent query if {@code query} was constructed, or + * could have been constructed, using the methods of this class. + * If you make a custom query {@code myQuery} by implementing + * {@link QueryExp} yourself then the result of + * {@code Query.toString(myQuery)} is unspecified.</p> + * + * @param query the query to convert. If it is null, the result will + * also be null. + * @return the string representation of the query, or null if the + * query is null. + * + * @since 1.7 + */ + public static String toString(QueryExp query) { + if (query == null) + return null; + + if (query instanceof ToQueryString) + return ((ToQueryString) query).toQueryString(); + + return query.toString(); + } + + /** + * <p>Produce a query from the given string. The query returned + * by this method can be converted back into a string using + * {@link #toString(QueryExp) toString}. The resultant string will + * not necessarily be equal to {@code s}.</p> + * + * @param s the string to convert. + * + * @return a {@code QueryExp} derived by parsing the string, or + * null if the string is null. + * + * @throws IllegalArgumentException if the string is not a valid + * query string. + * + * @since 1.7 + */ + public static QueryExp fromString(String s) { + if (s == null) + return null; + return new QueryParser(s).parseQuery(); + } + + /** * Utility method to escape strings used with * Query.{initial|any|final}SubString() methods. */
--- a/jdk/src/share/classes/javax/management/QueryEval.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/QueryEval.java Mon Mar 03 10:32:38 2008 +0100 @@ -38,7 +38,7 @@ * * @since 1.5 */ -public abstract class QueryEval implements Serializable { +public abstract class QueryEval extends ToQueryString implements Serializable { /* Serial version */ private static final long serialVersionUID = 2675899265640874796L;
--- a/jdk/src/share/classes/javax/management/QueryExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/QueryExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -30,9 +30,9 @@ /** - * <p>Represents relational constraints that can be used in database - * query "where clauses". Instances of QueryExp are returned by the - * static methods of the {@link Query} class.</p> + * <p>Represents relational constraints similar to database query "where + * clauses". Instances of QueryExp are returned by the static methods of the + * {@link Query} class.</p> * * <p>It is possible, but not * recommended, to create custom queries by implementing this @@ -40,6 +40,7 @@ * QueryEval} class than to implement the interface directly, so that * the {@link #setMBeanServer} method works correctly. * + * @see MBeanServer#queryNames MBeanServer.queryNames * @since 1.5 */ public interface QueryExp extends Serializable {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/share/classes/javax/management/QueryParser.java Mon Mar 03 10:32:38 2008 +0100 @@ -0,0 +1,663 @@ +/* + * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +package javax.management; + +import java.util.ArrayList; +import java.util.Formatter; +import java.util.List; +import java.util.Set; +import java.util.TreeSet; + +/** + * <p>Parser for JMX queries represented in an SQL-like language.</p> + */ +/* + * Note that if a query starts with ( then we don't know whether it is + * a predicate or just a value that is parenthesized. So, inefficiently, + * we try to parse a predicate and if that doesn't work we try to parse + * a value. + */ +class QueryParser { + // LEXER STARTS HERE + + private static class Token { + final String string; + Token(String s) { + this.string = s; + } + + @Override + public String toString() { + return string; + } + } + + private static final Token + END = new Token("<end of string>"), + LPAR = new Token("("), RPAR = new Token(")"), + COMMA = new Token(","), DOT = new Token("."), SHARP = new Token("#"), + PLUS = new Token("+"), MINUS = new Token("-"), + TIMES = new Token("*"), DIVIDE = new Token("/"), + LT = new Token("<"), GT = new Token(">"), + LE = new Token("<="), GE = new Token(">="), + NE = new Token("<>"), EQ = new Token("="), + NOT = new Id("NOT"), INSTANCEOF = new Id("INSTANCEOF"), + FALSE = new Id("FALSE"), TRUE = new Id("TRUE"), + BETWEEN = new Id("BETWEEN"), AND = new Id("AND"), + OR = new Id("OR"), IN = new Id("IN"), + LIKE = new Id("LIKE"), CLASS = new Id("CLASS"); + + // Keywords that can appear where an identifier can appear. + // If an attribute is one of these, then it must be quoted when + // converting a query into a string. + // We use a TreeSet so we can look up case-insensitively. + private static final Set<String> idKeywords = + new TreeSet<String>(String.CASE_INSENSITIVE_ORDER); + static { + for (Token t : new Token[] {NOT, INSTANCEOF, FALSE, TRUE, LIKE, CLASS}) + idKeywords.add(t.string); + }; + + public static String quoteId(String id) { + if (id.contains("\"") || idKeywords.contains(id)) + return '"' + id.replace("\"", "\"\"") + '"'; + else + return id; + } + + private static class Id extends Token { + Id(String id) { + super(id); + } + + // All other tokens use object identity, which means e.g. that one + // occurrence of the string constant 'x' is not the same as another. + // For identifiers, we ignore case when testing for equality so that + // for a keyword such as AND you can also spell it as "And" or "and". + // But we keep the original case of the identifier, so if it's not + // a keyword we will distinguish between the attribute Foo and the + // attribute FOO. + @Override + public boolean equals(Object o) { + return (o instanceof Id && (((Id) o).toString().equalsIgnoreCase(toString()))); + } + } + + private static class QuotedId extends Token { + QuotedId(String id) { + super(id); + } + + @Override + public String toString() { + return '"' + string.replace("\"", "\"\"") + '"'; + } + } + + private static class StringLit extends Token { + StringLit(String s) { + super(s); + } + + @Override + public String toString() { + return '\'' + string.replace("'", "''") + '\''; + } + } + + private static class LongLit extends Token { + long number; + + LongLit(long number) { + super(Long.toString(number)); + this.number = number; + } + } + + private static class DoubleLit extends Token { + double number; + + DoubleLit(double number) { + super(Double.toString(number)); + this.number = number; + } + } + + private static class Tokenizer { + private final String s; + private final int len; + private int i = 0; + + Tokenizer(String s) { + this.s = s; + this.len = s.length(); + } + + private int thisChar() { + if (i == len) + return -1; + return s.codePointAt(i); + } + + private void advance() { + i += Character.charCount(thisChar()); + } + + private int thisCharAdvance() { + int c = thisChar(); + advance(); + return c; + } + + Token nextToken() { + // In this method, c is the character we're looking at, and + // thisChar() is the character after that. Everything must + // preserve these invariants. When we return we then have + // thisChar() being the start of the following token, so + // the next call to nextToken() will begin from there. + int c; + + // Skip space + do { + if (i == len) + return null; + c = thisCharAdvance(); + } while (Character.isWhitespace(c)); + + // Now c is the first character of the token, and tokenI points + // to the character after that. + switch (c) { + case '(': return LPAR; + case ')': return RPAR; + case ',': return COMMA; + case '.': return DOT; + case '#': return SHARP; + case '*': return TIMES; + case '/': return DIVIDE; + case '=': return EQ; + case '-': return MINUS; + case '+': return PLUS; + + case '>': + if (thisChar() == '=') { + advance(); + return GE; + } else + return GT; + + case '<': + c = thisChar(); + switch (c) { + case '=': advance(); return LE; + case '>': advance(); return NE; + default: return LT; + } + + case '!': + if (thisCharAdvance() != '=') + throw new IllegalArgumentException("'!' must be followed by '='"); + return NE; + + case '"': + case '\'': { + int quote = c; + StringBuilder sb = new StringBuilder(); + while (true) { + while ((c = thisChar()) != quote) { + if (c < 0) { + throw new IllegalArgumentException( + "Unterminated string constant"); + } + sb.appendCodePoint(thisCharAdvance()); + } + advance(); + if (thisChar() == quote) { + sb.appendCodePoint(quote); + advance(); + } else + break; + } + if (quote == '\'') + return new StringLit(sb.toString()); + else + return new QuotedId(sb.toString()); + } + } + + // Is it a numeric constant? + if (Character.isDigit(c) || c == '.') { + StringBuilder sb = new StringBuilder(); + int lastc = -1; + while (true) { + sb.appendCodePoint(c); + c = Character.toLowerCase(thisChar()); + if (c == '+' || c == '-') { + if (lastc != 'e') + break; + } else if (!Character.isDigit(c) && c != '.' && c != 'e') + break; + lastc = c; + advance(); + } + String s = sb.toString(); + if (s.indexOf('.') >= 0 || s.indexOf('e') >= 0) { + double d = parseDoubleCheckOverflow(s); + return new DoubleLit(d); + } else { + // Like the Java language, we allow the numeric constant + // x where -x = Long.MIN_VALUE, even though x is not + // representable as a long (it is Long.MAX_VALUE + 1). + // Code in the parser will reject this value if it is + // not the operand of unary minus. + long l = -Long.parseLong("-" + s); + return new LongLit(l); + } + } + + // It must be an identifier. + if (!Character.isJavaIdentifierStart(c)) { + StringBuilder sb = new StringBuilder(); + Formatter f = new Formatter(sb); + f.format("Bad character: %c (%04x)", c, c); + throw new IllegalArgumentException(sb.toString()); + } + + StringBuilder id = new StringBuilder(); + while (true) { // identifier + id.appendCodePoint(c); + c = thisChar(); + if (!Character.isJavaIdentifierPart(c)) + break; + advance(); + } + + return new Id(id.toString()); + } + } + + /* Parse a double as a Java compiler would do it, throwing an exception + * if the input does not fit in a double. We assume that the input + * string is not "Infinity" and does not have a leading sign. + */ + private static double parseDoubleCheckOverflow(String s) { + double d = Double.parseDouble(s); + if (Double.isInfinite(d)) + throw new NumberFormatException("Overflow: " + s); + if (d == 0.0) { // Underflow checking is hard! CR 6604864 + String ss = s; + int e = s.indexOf('e'); // we already forced E to lowercase + if (e > 0) + ss = s.substring(0, e); + ss = ss.replace("0", "").replace(".", ""); + if (!ss.isEmpty()) + throw new NumberFormatException("Underflow: " + s); + } + return d; + } + + // PARSER STARTS HERE + + private final List<Token> tokens; + private int tokenI; + // The current token is always tokens[tokenI]. + + QueryParser(String s) { + // Construct the complete list of tokens immediately and append + // a sentinel (END). + tokens = new ArrayList<Token>(); + Tokenizer tokenizer = new Tokenizer(s); + Token t; + while ((t = tokenizer.nextToken()) != null) + tokens.add(t); + tokens.add(END); + } + + private Token current() { + return tokens.get(tokenI); + } + + // If the current token is t, then skip it and return true. + // Otherwise, return false. + private boolean skip(Token t) { + if (t.equals(current())) { + tokenI++; + return true; + } + return false; + } + + // If the current token is one of the ones in 'tokens', then skip it + // and return its index in 'tokens'. Otherwise, return -1. + private int skipOne(Token... tokens) { + for (int i = 0; i < tokens.length; i++) { + if (skip(tokens[i])) + return i; + } + return -1; + } + + // If the current token is t, then skip it and return. + // Otherwise throw an exception. + private void expect(Token t) { + if (!skip(t)) + throw new IllegalArgumentException("Expected " + t + ", found " + current()); + } + + private void next() { + tokenI++; + } + + QueryExp parseQuery() { + QueryExp qe = query(); + if (current() != END) + throw new IllegalArgumentException("Junk at end of query: " + current()); + return qe; + } + + // The remainder of this class is a classical recursive-descent parser. + // We only need to violate the recursive-descent scheme in one place, + // where parentheses make the grammar not LL(1). + + private QueryExp query() { + QueryExp lhs = andquery(); + while (skip(OR)) + lhs = Query.or(lhs, andquery()); + return lhs; + } + + private QueryExp andquery() { + QueryExp lhs = predicate(); + while (skip(AND)) + lhs = Query.and(lhs, predicate()); + return lhs; + } + + private QueryExp predicate() { + // Grammar hack. If we see a paren, it might be (query) or + // it might be (value). We try to parse (query), and if that + // fails, we parse (value). For example, if the string is + // "(2+3)*4 < 5" then we will try to parse the query + // "2+3)*4 < 5", which will fail at the ), so we'll back up to + // the paren and let value() handle it. + if (skip(LPAR)) { + int parenIndex = tokenI - 1; + try { + QueryExp qe = query(); + expect(RPAR); + return qe; + } catch (IllegalArgumentException e) { + // OK: try parsing a value + } + tokenI = parenIndex; + } + + if (skip(NOT)) + return Query.not(predicate()); + + if (skip(INSTANCEOF)) + return Query.isInstanceOf(stringvalue()); + + if (skip(LIKE)) { + StringValueExp sve = stringvalue(); + String s = sve.getValue(); + try { + return new ObjectName(s); + } catch (MalformedObjectNameException e) { + throw new IllegalArgumentException( + "Bad ObjectName pattern after LIKE: '" + s + "'", e); + } + } + + ValueExp lhs = value(); + + return predrhs(lhs); + } + + // The order of elements in the following arrays is important. The code + // in predrhs depends on integer indexes. Change with caution. + private static final Token[] relations = { + EQ, LT, GT, LE, GE, NE, + // 0, 1, 2, 3, 4, 5, + }; + private static final Token[] betweenLikeIn = { + BETWEEN, LIKE, IN + // 0, 1, 2, + }; + + private QueryExp predrhs(ValueExp lhs) { + Token start = current(); // for errors + + // Look for < > = etc + int i = skipOne(relations); + if (i >= 0) { + ValueExp rhs = value(); + switch (i) { + case 0: return Query.eq(lhs, rhs); + case 1: return Query.lt(lhs, rhs); + case 2: return Query.gt(lhs, rhs); + case 3: return Query.leq(lhs, rhs); + case 4: return Query.geq(lhs, rhs); + case 5: return Query.not(Query.eq(lhs, rhs)); + // There is no Query.ne so <> is shorthand for the above. + default: + throw new AssertionError(); + } + } + + // Must be BETWEEN LIKE or IN, optionally preceded by NOT + boolean not = skip(NOT); + i = skipOne(betweenLikeIn); + if (i < 0) + throw new IllegalArgumentException("Expected relation at " + start); + + QueryExp q; + switch (i) { + case 0: { // BETWEEN + ValueExp lower = value(); + expect(AND); + ValueExp upper = value(); + q = Query.between(lhs, lower, upper); + break; + } + + case 1: { // LIKE + if (!(lhs instanceof AttributeValueExp)) { + throw new IllegalArgumentException( + "Left-hand side of LIKE must be an attribute"); + } + AttributeValueExp alhs = (AttributeValueExp) lhs; + StringValueExp sve = stringvalue(); + String s = sve.getValue(); + q = Query.match(alhs, patternValueExp(s)); + break; + } + + case 2: { // IN + expect(LPAR); + List<ValueExp> values = new ArrayList<ValueExp>(); + values.add(value()); + while (skip(COMMA)) + values.add(value()); + expect(RPAR); + q = Query.in(lhs, values.toArray(new ValueExp[values.size()])); + break; + } + + default: + throw new AssertionError(); + } + + if (not) + q = Query.not(q); + + return q; + } + + private ValueExp value() { + ValueExp lhs = factor(); + int i; + while ((i = skipOne(PLUS, MINUS)) >= 0) { + ValueExp rhs = factor(); + if (i == 0) + lhs = Query.plus(lhs, rhs); + else + lhs = Query.minus(lhs, rhs); + } + return lhs; + } + + private ValueExp factor() { + ValueExp lhs = term(); + int i; + while ((i = skipOne(TIMES, DIVIDE)) >= 0) { + ValueExp rhs = term(); + if (i == 0) + lhs = Query.times(lhs, rhs); + else + lhs = Query.div(lhs, rhs); + } + return lhs; + } + + private ValueExp term() { + boolean signed = false; + int sign = +1; + if (skip(PLUS)) + signed = true; + else if (skip(MINUS)) { + signed = true; sign = -1; + } + + Token t = current(); + next(); + + if (t instanceof DoubleLit) + return Query.value(sign * ((DoubleLit) t).number); + if (t instanceof LongLit) { + long n = ((LongLit) t).number; + if (n == Long.MIN_VALUE && sign != -1) + throw new IllegalArgumentException("Illegal positive integer: " + n); + return Query.value(sign * n); + } + if (signed) + throw new IllegalArgumentException("Expected number after + or -"); + + if (t == LPAR) { + ValueExp v = value(); + expect(RPAR); + return v; + } + if (t.equals(FALSE) || t.equals(TRUE)) { + return Query.value(t.equals(TRUE)); + } + if (t.equals(CLASS)) + return Query.classattr(); + + if (t instanceof StringLit) + return Query.value(t.string); // Not toString(), which would requote ' + + // At this point, all that remains is something that will call Query.attr + + if (!(t instanceof Id) && !(t instanceof QuotedId)) + throw new IllegalArgumentException("Unexpected token " + t); + + String name1 = name(t); + + if (skip(SHARP)) { + Token t2 = current(); + next(); + String name2 = name(t2); + return Query.attr(name1, name2); + } + return Query.attr(name1); + } + + // Initially, t is the first token of a supposed name and current() + // is the second. + private String name(Token t) { + StringBuilder sb = new StringBuilder(); + while (true) { + if (!(t instanceof Id) && !(t instanceof QuotedId)) + throw new IllegalArgumentException("Unexpected token " + t); + sb.append(t.string); + if (current() != DOT) + break; + sb.append('.'); + next(); + t = current(); + next(); + } + return sb.toString(); + } + + private StringValueExp stringvalue() { + // Currently the only way to get a StringValueExp when constructing + // a QueryExp is via Query.value(String), so we only recognize + // string literals here. But if we expand queries in the future + // that might no longer be true. + Token t = current(); + next(); + if (!(t instanceof StringLit)) + throw new IllegalArgumentException("Expected string: " + t); + return Query.value(t.string); + } + + // Convert the SQL pattern syntax, using % and _, to the Query.match + // syntax, using * and ?. The tricky part is recognizing \% and + // \_ as literal values, and also not replacing them inside []. + // But Query.match does not recognize \ inside [], which makes our + // job a tad easier. + private StringValueExp patternValueExp(String s) { + int c; + for (int i = 0; i < s.length(); i += Character.charCount(c)) { + c = s.codePointAt(i); + switch (c) { + case '\\': + i++; // i += Character.charCount(c), but we know it's 1! + if (i >= s.length()) + throw new IllegalArgumentException("\\ at end of pattern"); + break; + case '[': + i = s.indexOf(']', i); + if (i < 0) + throw new IllegalArgumentException("[ without ]"); + break; + case '%': + s = s.substring(0, i) + "*" + s.substring(i + 1); + break; + case '_': + s = s.substring(0, i) + "?" + s.substring(i + 1); + break; + case '*': + case '?': + s = s.substring(0, i) + '\\' + (char) c + s.substring(i + 1); + i++; + break; + } + } + return Query.value(s); + } +}
--- a/jdk/src/share/classes/javax/management/StringValueExp.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/StringValueExp.java Mon Mar 03 10:32:38 2008 +0100 @@ -73,7 +73,7 @@ * Returns the string representing the object. */ public String toString() { - return "'" + val + "'"; + return "'" + val.replace("'", "''") + "'"; }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/share/classes/javax/management/ToQueryString.java Mon Mar 03 10:32:38 2008 +0100 @@ -0,0 +1,38 @@ +/* + * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +package javax.management; + +/* QueryExp classes can extend this to get non-default treatment for + * Query.toString(q). We're reluctant to change the public toString() + * methods of the classes because people might be parsing them, even + * though that's rather fragile. But Query.toString(q) has no such + * constraint so it can use the new toQueryString() method defined here. + */ +class ToQueryString { + String toQueryString() { + return toString(); + } +}
--- a/jdk/src/share/classes/javax/management/monitor/Monitor.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/src/share/classes/javax/management/monitor/Monitor.java Mon Mar 03 10:32:38 2008 +0100 @@ -27,13 +27,8 @@ import static com.sun.jmx.defaults.JmxProperties.MONITOR_LOGGER; import com.sun.jmx.mbeanserver.GetPropertyAction; -import com.sun.jmx.remote.util.EnvHelp; -import java.beans.BeanInfo; -import java.beans.Introspector; -import java.beans.PropertyDescriptor; +import com.sun.jmx.mbeanserver.Introspector; import java.io.IOException; -import java.lang.reflect.Array; -import java.lang.reflect.InvocationTargetException; import java.security.AccessControlContext; import java.security.AccessController; import java.security.PrivilegedAction; @@ -64,7 +59,6 @@ import javax.management.ObjectName; import javax.management.ReflectionException; import static javax.management.monitor.MonitorNotification.*; -import javax.management.openmbean.CompositeData; /** * Defines the part common to all monitor MBeans. @@ -876,44 +870,13 @@ if (isComplexTypeAttribute) { Object v = value; for (String attr : remainingAttributes) - v = introspect(object, attr, v); + v = Introspector.elementFromComplex(v, attr); return (Comparable<?>) v; } else { return (Comparable<?>) value; } } - Object introspect(ObjectName object, - String attribute, - Object value) - throws AttributeNotFoundException { - try { - if (value.getClass().isArray() && attribute.equals("length")) { - return Array.getLength(value); - } else if (value instanceof CompositeData) { - return ((CompositeData) value).get(attribute); - } else { - // Java Beans introspection - // - BeanInfo bi = Introspector.getBeanInfo(value.getClass()); - PropertyDescriptor[] pds = bi.getPropertyDescriptors(); - for (PropertyDescriptor pd : pds) - if (pd.getName().equals(attribute)) - return pd.getReadMethod().invoke(value); - throw new AttributeNotFoundException( - "Could not find the getter method for the property " + - attribute + " using the Java Beans introspector"); - } - } catch (InvocationTargetException e) { - throw new IllegalArgumentException(e); - } catch (AttributeNotFoundException e) { - throw e; - } catch (Exception e) { - throw EnvHelp.initCause( - new AttributeNotFoundException(e.getMessage()), e); - } - } - boolean isComparableTypeValid(ObjectName object, String attribute, Comparable<?> value) {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/javax/management/query/QueryDottedAttrTest.java Mon Mar 03 10:32:38 2008 +0100 @@ -0,0 +1,192 @@ +/* + * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +/* + * @test QueryDottedAttrTest + * @bug 6602310 + * @summary Test that Query.attr can understand a.b etc. + * @author Eamonn McManus + */ + +import java.beans.ConstructorProperties; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.util.Collections; +import java.util.Set; +import javax.management.AttributeNotFoundException; +import javax.management.MBeanException; +import javax.management.MBeanServer; +import javax.management.MBeanServerFactory; +import javax.management.ObjectName; +import javax.management.Query; +import javax.management.QueryExp; +import javax.management.ReflectionException; +import javax.management.StandardMBean; + +public class QueryDottedAttrTest { + public static class Complex { + private final double re, im; + + @ConstructorProperties({"real", "imaginary"}) + public Complex(double re, double im) { + this.re = re; + this.im = im; + } + + public double getRe() { + return re; + } + + public double getIm() { + return im; + } + } + + public static interface Intf { + Complex getComplex(); + int[] getIntArray(); + String[] getStringArray(); + } + + public static class Impl implements Intf { + public Complex getComplex() { + return new Complex(1.0, 1.0); + } + + public int[] getIntArray() { + return new int[] {1, 2, 3}; + } + + public String[] getStringArray() { + return new String[] {"one", "two", "three"}; + } + } + + public static interface TestMBean extends Intf {} + + public static class Test extends Impl implements TestMBean {} + + public static interface TestMXBean extends Intf {} + + public static class TestMX extends Impl implements TestMXBean {} + + public static class AttrWithDot extends StandardMBean { + public <T> AttrWithDot(Object impl, Class<T> intf) { + super(intf.cast(impl), intf, (intf == TestMXBean.class)); + } + + public Object getAttribute(String attribute) + throws AttributeNotFoundException, MBeanException, ReflectionException { + if (attribute.equals("Complex.re")) + return 2.0; + else + return super.getAttribute(attribute); + } + } + + private static final boolean[] booleans = {false, true}; + + private static final QueryExp[] alwaysTrueQueries = { + Query.eq(Query.attr("IntArray.length"), Query.value(3)), + Query.eq(Query.attr("StringArray.length"), Query.value(3)), + Query.eq(Query.attr("Complex.im"), Query.value(1.0)), + }; + + private static final QueryExp[] alwaysFalseQueries = { + Query.eq(Query.attr("IntArray.length"), Query.value("3")), + Query.eq(Query.attr("IntArray.length"), Query.value(2)), + Query.eq(Query.attr("Complex.im"), Query.value(-1.0)), + Query.eq(Query.attr("Complex.xxx"), Query.value(0)), + }; + + private static final QueryExp[] attrWithDotTrueQueries = { + Query.eq(Query.attr("Complex.re"), Query.value(2.0)), + }; + + private static final QueryExp[] attrWithDotFalseQueries = { + Query.eq(Query.attr("Complex.re"), Query.value(1.0)), + }; + + private static String failure; + + public static void main(String[] args) throws Exception { + ObjectName name = new ObjectName("a:b=c"); + for (boolean attrWithDot : booleans) { + for (boolean mx : booleans) { + String what = + (mx ? "MXBean" : "Standard MBean") + + (attrWithDot ? " having attribute with dot in its name" : ""); + System.out.println("Testing " + what); + Class<?> intf = mx ? TestMXBean.class : TestMBean.class; + Object impl = mx ? new TestMX() : new Test(); + if (attrWithDot) + impl = new AttrWithDot(impl, intf); + MBeanServer mbs = MBeanServerFactory.newMBeanServer(); + mbs.registerMBean(impl, name); + boolean ismx = "true".equals( + mbs.getMBeanInfo(name).getDescriptor().getFieldValue("mxbean")); + if (mx != ismx) + fail("MBean should " + (mx ? "" : "not ") + "be MXBean"); + test(mbs, name, alwaysTrueQueries, true); + test(mbs, name, alwaysFalseQueries, false); + test(mbs, name, attrWithDotTrueQueries, attrWithDot); + test(mbs, name, attrWithDotFalseQueries, !attrWithDot); + } + } + if (failure != null) + throw new Exception("TEST FAILED: " + failure); + } + + private static void test( + MBeanServer mbs, ObjectName name, QueryExp[] queries, boolean expect) + throws Exception { + for (QueryExp query : queries) { + // Serialize and deserialize the query to ensure that its + // serialization is correct + ByteArrayOutputStream bout = new ByteArrayOutputStream(); + ObjectOutputStream oout = new ObjectOutputStream(bout); + oout.writeObject(query); + oout.close(); + ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); + ObjectInputStream oin = new ObjectInputStream(bin); + query = (QueryExp) oin.readObject(); + Set<ObjectName> names = mbs.queryNames(null, query); + if (names.isEmpty()) { + if (expect) + fail("Query is false but should be true: " + query); + } else if (names.equals(Collections.singleton(name))) { + if (!expect) + fail("Query is true but should be false: " + query); + } else { + fail("Query returned unexpected set: " + names); + } + } + } + + private static void fail(String msg) { + failure = msg; + System.out.println("..." + msg); + } +}
--- a/jdk/test/javax/management/query/QueryExpStringTest.java Fri Feb 29 20:04:01 2008 -0800 +++ b/jdk/test/javax/management/query/QueryExpStringTest.java Mon Mar 03 10:32:38 2008 +0100 @@ -31,6 +31,10 @@ * @run main QueryExpStringTest */ +// This test is mostly obsolete, since we now have Query.fromString. +// The test includes its own parser, from which Query.fromString was derived. +// The parsers are not identical and the one here is no longer maintained. + import java.util.*; import javax.management.*; @@ -39,6 +43,11 @@ private static final ValueExp attr = Query.attr("attr"), qattr = Query.attr("className", "attr"), + aa = Query.attr("A"), + bb = Query.attr("B"), + cc = Query.attr("C"), + dd = Query.attr("D"), + zero = Query.value(0), classattr = Query.classattr(), simpleString = Query.value("simpleString"), complexString = Query.value("a'b\\'\""), @@ -66,10 +75,14 @@ (StringValueExp) simpleString), initialStar = Query.initialSubString((AttributeValueExp) attr, Query.value("*")), + initialPercent = Query.initialSubString((AttributeValueExp) attr, + Query.value("%")), any = Query.anySubString((AttributeValueExp) attr, (StringValueExp) simpleString), anyStar = Query.anySubString((AttributeValueExp) attr, Query.value("*")), + anyPercent = Query.anySubString((AttributeValueExp) attr, + Query.value("%")), ffinal = Query.finalSubString((AttributeValueExp) attr, (StringValueExp) simpleString), finalMagic = Query.finalSubString((AttributeValueExp) attr, @@ -77,16 +90,20 @@ in = Query.in(intValue, new ValueExp[] {intValue, floatValue}), and = Query.and(gt, lt), or = Query.or(gt, lt), - not = Query.not(gt); + not = Query.not(gt), + aPlusB_PlusC = Query.gt(Query.plus(Query.plus(aa, bb), cc), zero), + aPlus_BPlusC = Query.gt(Query.plus(aa, Query.plus(bb, cc)), zero); // Commented-out tests below require change to implementation private static final Object tests[] = { attr, "attr", - qattr, "className.attr", +// qattr, "className.attr", +// Preceding form now appears as className#attr, an incompatible change +// which we don't mind much because nobody uses the two-arg Query.attr. classattr, "Class", simpleString, "'simpleString'", -// complexString, "'a\\'b\\\\\\'\"'", + complexString, "'a''b\\\''\"'", intValue, "12345678", integerValue, "12345678", longValue, "12345678", @@ -104,16 +121,20 @@ eq, "(12345678) = (2.5)", between, "(12345678) between (2.5) and (2.5)", match, "attr like 'simpleString'", -// initial, "attr like 'simpleString*'", -// initialStar, "attr like '\\\\**'", -// any, "attr like '*simpleString*'", -// anyStar, "attr like '*\\\\**'", -// ffinal, "attr like '*simpleString'", -// finalMagic, "attr like '*\\\\?\\\\*\\\\[\\\\\\\\'", + initial, "attr like 'simpleString%'", + initialStar, "attr like '\\*%'", + initialPercent, "attr like '\\%%'", + any, "attr like '%simpleString%'", + anyStar, "attr like '%\\*%'", + anyPercent, "attr like '%\\%%'", + ffinal, "attr like '%simpleString'", + finalMagic, "attr like '%\\?\\*\\[\\\\'", in, "12345678 in (12345678, 2.5)", and, "((12345678) > (2.5)) and ((12345678) < (2.5))", or, "((12345678) > (2.5)) or ((12345678) < (2.5))", not, "not ((12345678) > (2.5))", + aPlusB_PlusC, "(A + B + C) > (0)", +// aPlus_BPlusC, "(A + (B + C)) > (0)", }; public static void main(String[] args) throws Exception { @@ -185,7 +206,9 @@ throw new Exception("Expected types `attr like string': " + exp + " like " + pat); } - return Query.match((AttributeValueExp) exp, (StringValueExp) pat); + StringValueExp spat = (StringValueExp) pat; + spat = Query.value(translateMatch(spat.getValue())); + return Query.match((AttributeValueExp) exp, spat); } if (skip(ss, " in (")) { @@ -203,6 +226,28 @@ throw new Exception("Expected in or like after expression"); } + private static String translateMatch(String s) { + StringBuilder sb = new StringBuilder(); + for (int i = 0; i < s.length(); i++) { // logic not correct for wide chars + char c = s.charAt(i); + switch (c) { + case '\\': + sb.append(c).append(s.charAt(++i)); break; + case '%': + sb.append('*'); break; + case '_': + sb.append('?'); break; + case '*': + sb.append("\\*"); break; + case '?': + sb.append("\\?"); break; + default: + sb.append(c); break; + } + } + return sb.toString(); + } + private static QueryExp parseQueryAfterParen(String[] ss) throws Exception { /* This is very ugly. We might have "(q1) and (q2)" here, or @@ -229,7 +274,7 @@ ss[0] = start; ValueExp lhs = parseExp(ss); if (!skip(ss, ") ")) - throw new Exception("Expected `) ' after subexpression"); + throw new Exception("Expected `) ' after subexpression: " + ss[0]); String op = scanWord(ss); if (!skip(ss, " (")) throw new Exception("Expected ` (' after `" + op + "'"); @@ -258,15 +303,16 @@ } private static ValueExp parseExp(String[] ss) throws Exception { - final ValueExp prim = parsePrimary(ss); + ValueExp lhs = parsePrimary(ss); + while (true) { /* Look ahead to see if we have an arithmetic operator. */ String back = ss[0]; if (!skip(ss, " ")) - return prim; + return lhs; if (ss[0].equals("") || "+-*/".indexOf(ss[0].charAt(0)) < 0) { ss[0] = back; - return prim; + return lhs; } final String op = scanWord(ss); @@ -276,15 +322,16 @@ throw new Exception("Unknown arithmetic operator: " + op); if (!skip(ss, " ")) throw new Exception("Expected space after arithmetic operator"); - ValueExp rhs = parseExp(ss); + ValueExp rhs = parsePrimary(ss); switch (op.charAt(0)) { - case '+': return Query.plus(prim, rhs); - case '-': return Query.minus(prim, rhs); - case '*': return Query.times(prim, rhs); - case '/': return Query.div(prim, rhs); + case '+': lhs = Query.plus(lhs, rhs); break; + case '-': lhs = Query.minus(lhs, rhs); break; + case '*': lhs = Query.times(lhs, rhs); break; + case '/': lhs = Query.div(lhs, rhs); break; default: throw new Exception("Can't happen: " + op.charAt(0)); } } + } private static ValueExp parsePrimary(String[] ss) throws Exception { String s = ss[0]; @@ -324,14 +371,19 @@ private static String scanWord(String[] ss) throws Exception { String s = ss[0]; int space = s.indexOf(' '); - if (space < 0) { + int rpar = s.indexOf(')'); + if (space < 0 && rpar < 0) { ss[0] = ""; return s; - } else { - String word = s.substring(0, space); - ss[0] = s.substring(space); - return word; } + int stop; + if (space >= 0 && rpar >= 0) // string has both space and ), stop at first + stop = Math.min(space, rpar); + else // string has only one, stop at it + stop = Math.max(space, rpar); + String word = s.substring(0, stop); + ss[0] = s.substring(stop); + return word; } private static boolean matchWord(String[] ss, String word) @@ -381,13 +433,11 @@ for (i = 0; i < len; i++) { char c = s.charAt(i); if (c == '\'') { - ss[0] = s.substring(i + 1); + ++i; + if (i >= len || s.charAt(i) != '\'') { + ss[0] = s.substring(i); return Query.value(buf.toString()); } - if (c == '\\') { - if (++i == len) - throw new Exception("\\ at end of string"); - c = s.charAt(i); } buf.append(c); }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/javax/management/query/QueryParseTest.java Mon Mar 03 10:32:38 2008 +0100 @@ -0,0 +1,778 @@ +/* + * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +/* + * @test QueryParseTest + * @bug 6602310 6604768 + * @summary Test Query.fromString and Query.toString. + * @author Eamonn McManus + */ + +import java.util.Collections; +import java.util.Set; +import javax.management.Attribute; +import javax.management.AttributeList; +import javax.management.AttributeNotFoundException; +import javax.management.DynamicMBean; +import javax.management.MBeanAttributeInfo; +import javax.management.MBeanInfo; +import javax.management.MBeanServer; +import javax.management.MBeanServerDelegate; +import javax.management.MBeanServerFactory; +import javax.management.ObjectName; +import javax.management.Query; +import javax.management.QueryExp; + +public class QueryParseTest { + // In this table, each string constant corresponds to a test case. + // The objects following the string up to the next string are MBeans. + // Each MBean must implement ExpectedValue to return true or false + // according as it should return that value for the query parsed + // from the given string. The test will parse the string into a + // a query and verify that the MBeans return the expected value + // for that query. Then it will convert the query back into a string + // and into a second query, and check that the MBeans return the + // expected value for that query too. The reason we need to do all + // this is that the spec talks about "equivalent queries", and gives + // the implementation wide scope to rearrange queries. So we cannot + // just compare string values. + // + // We could also write an implementation-dependent test that knew what + // the strings look like, and that would have to be changed if the + // implementation changed. But the approach here is cleaner. + // + // To simplify the creation of MBeans, most use the expectTrue or + // expectFalse methods. The parameters of these methods end up in + // attributes called "A", "B", "C", etc. + private static final Object[] queryTests = { + // RELATIONS + + "A < B", + expectTrue(1, 2), expectTrue(1.0, 2.0), expectTrue("one", "two"), + expectTrue(Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY), + expectFalse(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY), + expectFalse(1, 1), expectFalse(1.0, 1.0), expectFalse("one", "one"), + expectFalse(2, 1), expectFalse(2.0, 1.0), expectFalse("two", "one"), + expectFalse(Double.NaN, Double.NaN), + + "One = two", + expectTrueOneTwo(1, 1), expectTrueOneTwo(1.0, 1.0), + expectFalseOneTwo(1, 2), expectFalseOneTwo(2, 1), + + "A <= B", + expectTrue(1, 1), expectTrue(1, 2), expectTrue("one", "one"), + expectTrue("one", "two"), + expectFalse(2, 1), expectFalse("two", "one"), + expectFalse(Double.NaN, Double.NaN), + + "A >= B", + expectTrue(1, 1), expectTrue(2, 1), expectTrue("two", "one"), + expectFalse(1, 2), expectFalse("one", "two"), + + "A > B", + expectTrue(2, 1), expectTrue("two", "one"), + expectFalse(2, 2), expectFalse(1, 2), expectFalse(1.0, 2.0), + expectFalse("one", "two"), + + "A <> B", + expectTrue(1, 2), expectTrue("foo", "bar"), + expectFalse(1, 1), expectFalse("foo", "foo"), + + "A != B", + expectTrue(1, 2), expectTrue("foo", "bar"), + expectFalse(1, 1), expectFalse("foo", "foo"), + + // PARENTHESES + + "(((A))) = (B)", + expectTrue(1, 1), expectFalse(1, 2), + + "(A = B)", + expectTrue(1, 1), expectFalse(1, 2), + + "(((A = (B))))", + expectTrue(1, 1), expectFalse(1, 2), + + // INTEGER LITERALS + + "A = 1234567890123456789", + expectTrue(1234567890123456789L), expectFalse(123456789L), + + "A = +1234567890123456789", + expectTrue(1234567890123456789L), expectFalse(123456789L), + + "A = -1234567890123456789", + expectTrue(-1234567890123456789L), expectFalse(-123456789L), + + + "A = + 1234567890123456789", + expectTrue(1234567890123456789L), expectFalse(123456789L), + + "A = - 1234567890123456789", + expectTrue(-1234567890123456789L), expectFalse(-123456789L), + + "A = " + Long.MAX_VALUE, + expectTrue(Long.MAX_VALUE), expectFalse(Long.MIN_VALUE), + + "A = " + Long.MIN_VALUE, + expectTrue(Long.MIN_VALUE), expectFalse(Long.MAX_VALUE), + + // DOUBLE LITERALS + + "A = 0.0", + expectTrue(0.0), expectFalse(1.0), + + "A = 0.0e23", + expectTrue(0.0), expectFalse(1.0), + + "A = 1.2e3", + expectTrue(1.2e3), expectFalse(1.2), + + "A = +1.2", + expectTrue(1.2), expectFalse(-1.2), + + "A = 1.2e+3", + expectTrue(1.2e3), expectFalse(1.2), + + "A = 1.2e-3", + expectTrue(1.2e-3), expectFalse(1.2), + + "A = 1.2E3", + expectTrue(1.2e3), expectFalse(1.2), + + "A = -1.2e3", + expectTrue(-1.2e3), expectFalse(1.2), + + "A = " + Double.MAX_VALUE, + expectTrue(Double.MAX_VALUE), expectFalse(Double.MIN_VALUE), + + "A = " + -Double.MAX_VALUE, + expectTrue(-Double.MAX_VALUE), expectFalse(-Double.MIN_VALUE), + + "A = " + Double.MIN_VALUE, + expectTrue(Double.MIN_VALUE), expectFalse(Double.MAX_VALUE), + + "A = " + -Double.MIN_VALUE, + expectTrue(-Double.MIN_VALUE), expectFalse(-Double.MAX_VALUE), + + Query.toString( // A = Infinity -> A = (1.0/0.0) + Query.eq(Query.attr("A"), Query.value(Double.POSITIVE_INFINITY))), + expectTrue(Double.POSITIVE_INFINITY), + expectFalse(0.0), expectFalse(Double.NEGATIVE_INFINITY), + + Query.toString( // A = -Infinity -> A = (-1.0/0.0) + Query.eq(Query.attr("A"), Query.value(Double.NEGATIVE_INFINITY))), + expectTrue(Double.NEGATIVE_INFINITY), + expectFalse(0.0), expectFalse(Double.POSITIVE_INFINITY), + + Query.toString( // A < NaN -> A < (0.0/0.0) + Query.lt(Query.attr("A"), Query.value(Double.NaN))), + expectFalse(0.0), expectFalse(Double.NEGATIVE_INFINITY), + expectFalse(Double.POSITIVE_INFINITY), expectFalse(Double.NaN), + + Query.toString( // A >= NaN -> A < (0.0/0.0) + Query.geq(Query.attr("A"), Query.value(Double.NaN))), + expectFalse(0.0), expectFalse(Double.NEGATIVE_INFINITY), + expectFalse(Double.POSITIVE_INFINITY), expectFalse(Double.NaN), + + // STRING LITERALS + + "A = 'blim'", + expectTrue("blim"), expectFalse("blam"), + + "A = 'can''t'", + expectTrue("can't"), expectFalse("cant"), expectFalse("can''t"), + + "A = '''blim'''", + expectTrue("'blim'"), expectFalse("'blam'"), + + "A = ''", + expectTrue(""), expectFalse((Object) null), + + // BOOLEAN LITERALS + + "A = true", + expectTrue(true), expectFalse(false), expectFalse((Object) null), + + "A = TRUE", + expectTrue(true), expectFalse(false), + + "A = TrUe", + expectTrue(true), expectFalse(false), + + "A = false", + expectTrue(false), expectFalse(true), + + "A = fAlSe", + expectTrue(false), expectFalse(true), + + "A = \"true\"", // An attribute called "true" + expectFalse(true), expectFalse(false), expectFalse("\"true\""), + newTester(new String[] {"A", "true"}, new Object[] {2.2, 2.2}, true), + newTester(new String[] {"A", "true"}, new Object[] {2.2, 2.3}, false), + + "A = \"False\"", + expectFalse(true), expectFalse(false), expectFalse("\"False\""), + newTester(new String[] {"A", "False"}, new Object[] {2.2, 2.2}, true), + newTester(new String[] {"A", "False"}, new Object[] {2.2, 2.3}, false), + + // ARITHMETIC + + "A + B = 10", + expectTrue(4, 6), expectFalse(3, 8), + + "A + B = 'blim'", + expectTrue("bl", "im"), expectFalse("bl", "am"), + + "A - B = 10", + expectTrue(16, 6), expectFalse(16, 3), + + "A * B = 10", + expectTrue(2, 5), expectFalse(3, 3), + + "A / B = 10", + expectTrue(70, 7), expectTrue(70.0, 7), expectFalse(70.01, 7), + + "A + B + C = 10", + expectTrue(2, 3, 5), expectFalse(2, 4, 8), + + "A+B+C=10", + expectTrue(2, 3, 5), expectFalse(2, 4, 8), + + "A + B + C + D = 10", + expectTrue(1, 2, 3, 4), expectFalse(2, 3, 4, 5), + + "A + (B + C) = 10", + expectTrue(2, 3, 5), expectFalse(2, 4, 8), + + // It is not correct to rearrange A + (B + C) as A + B + C + // (which means (A + B) + C), because of overflow. + // In particular Query.toString must not do this. + "A + (B + C) = " + Double.MAX_VALUE, // ensure no false associativity + expectTrue(Double.MAX_VALUE, Double.MAX_VALUE, -Double.MAX_VALUE), + expectFalse(-Double.MAX_VALUE, Double.MAX_VALUE, Double.MAX_VALUE), + + "A * (B * C) < " + Double.MAX_VALUE, // same test for multiplication + expectTrue(Double.MAX_VALUE, Double.MAX_VALUE, Double.MIN_VALUE), + expectFalse(Double.MIN_VALUE, Double.MAX_VALUE, Double.MAX_VALUE), + + "A * B + C = 10", + expectTrue(3, 3, 1), expectTrue(2, 4, 2), expectFalse(1, 2, 3), + + "A*B+C=10", + expectTrue(3, 3, 1), expectTrue(2, 4, 2), expectFalse(1, 2, 3), + + "(A * B) + C = 10", + expectTrue(3, 3, 1), expectTrue(2, 4, 2), expectFalse(1, 2, 3), + + "A + B * C = 10", + expectTrue(1, 3, 3), expectTrue(2, 2, 4), expectFalse(1, 2, 3), + + "A - B * C = 10", + expectTrue(16, 2, 3), expectFalse(15, 2, 2), + + "A + B / C = 10", + expectTrue(5, 15, 3), expectFalse(5, 16, 4), + + "A - B / C = 10", + expectTrue(16, 12, 2), expectFalse(15, 10, 3), + + "A * (B + C) = 10", + expectTrue(2, 2, 3), expectFalse(1, 2, 3), + + "A / (B + C) = 10", + expectTrue(70, 4, 3), expectFalse(70, 3, 5), + + "A * (B - C) = 10", + expectTrue(2, 8, 3), expectFalse(2, 3, 8), + + "A / (B - C) = 10", + expectTrue(70, 11, 4), expectFalse(70, 4, 11), + + "A / B / C = 10", + expectTrue(140, 2, 7), expectFalse(100, 5, 5), + + "A / (B / C) = 10", + expectTrue(70, 14, 2), expectFalse(70, 10, 7), + + // LOGIC + + "A = B or C = D", + expectTrue(1, 1, 2, 3), expectTrue(1, 2, 3, 3), expectTrue(1, 1, 2, 2), + expectFalse(1, 2, 3, 4), expectFalse("!", "!!", "?", "??"), + + "A = B and C = D", + expectTrue(1, 1, 2, 2), + expectFalse(1, 1, 2, 3), expectFalse(1, 2, 3, 3), + + "A = 1 and B = 2 and C = 3", + expectTrue(1, 2, 3), expectFalse(1, 2, 4), + + "A = 1 or B = 2 or C = 3", + expectTrue(1, 2, 3), expectTrue(1, 0, 0), expectTrue(0, 0, 3), + expectFalse(2, 3, 4), + + // grouped as (a and b) or (c and d) + "A = 1 AND B = 2 OR C = 3 AND D = 4", + expectTrue(1, 2, 3, 4), expectTrue(1, 2, 1, 2), expectTrue(3, 4, 3, 4), + expectFalse(3, 4, 1, 2), expectFalse(1, 1, 1, 1), + + "(A = 1 AND B = 2) OR (C = 3 AND D = 4)", + expectTrue(1, 2, 3, 4), expectTrue(1, 2, 1, 2), expectTrue(3, 4, 3, 4), + expectFalse(3, 4, 1, 2), expectFalse(1, 1, 1, 1), + + "(A = 1 or B = 2) AND (C = 3 or C = 4)", + expectTrue(1, 1, 3, 3), expectTrue(2, 2, 4, 4), expectTrue(1, 2, 3, 4), + expectFalse(1, 2, 1, 2), expectFalse(3, 4, 3, 4), + + // LIKE + + "A like 'b%m'", + expectTrue("blim"), expectTrue("bm"), + expectFalse(""), expectFalse("blimmo"), expectFalse("mmm"), + + "A not like 'b%m'", + expectFalse("blim"), expectFalse("bm"), + expectTrue(""), expectTrue("blimmo"), expectTrue("mmm"), + + "A like 'b_m'", + expectTrue("bim"), expectFalse("blim"), + + "A like '%can''t%'", + expectTrue("can't"), + expectTrue("I'm sorry Dave, I'm afraid I can't do that"), + expectFalse("cant"), expectFalse("can''t"), + + "A like '\\%%\\%'", + expectTrue("%blim%"), expectTrue("%%"), + expectFalse("blim"), expectFalse("%asdf"), expectFalse("asdf%"), + + "A LIKE '*%?_'", + expectTrue("*blim?!"), expectTrue("*?_"), + expectFalse("blim"), expectFalse("blim?"), + expectFalse("?*"), expectFalse("??"), expectFalse(""), expectFalse("?"), + + Query.toString( + Query.initialSubString(Query.attr("A"), Query.value("*?%_"))), + expectTrue("*?%_tiddly"), expectTrue("*?%_"), + expectFalse("?%_tiddly"), expectFalse("*!%_"), expectFalse("*??_"), + expectFalse("*?%!"), expectFalse("*?%!tiddly"), + + Query.toString( + Query.finalSubString(Query.attr("A"), Query.value("*?%_"))), + expectTrue("tiddly*?%_"), expectTrue("*?%_"), + expectFalse("tiddly?%_"), expectFalse("*!%_"), expectFalse("*??_"), + expectFalse("*?%!"), expectFalse("tiddly*?%!"), + + // BETWEEN + + "A between B and C", + expectTrue(1, 1, 2), expectTrue(2, 1, 2), expectTrue(2, 1, 3), + expectFalse(3, 1, 2), expectFalse(0, 1, 2), expectFalse(2, 3, 1), + expectTrue(1.0, 0.0, 2.0), expectFalse(2.0, 0.0, 1.0), + expectTrue(0.0, 0.0, 0.0), expectTrue(1.0, 0.0, 1.0), + expectTrue(1.0, 0.0, Double.POSITIVE_INFINITY), + expectFalse(1.0, Double.NEGATIVE_INFINITY, 0.0), + expectFalse(false, false, true), expectFalse(true, false, true), + expectTrue("jim", "fred", "sheila"), expectFalse("fred", "jim", "sheila"), + + "A between B and C and 1+2=3", + expectTrue(2, 1, 3), expectFalse(2, 3, 1), + + "A not between B and C", + expectTrue(1, 2, 3), expectFalse(2, 1, 3), + + // IN + + "A in (1, 2, 3)", + expectTrue(1), expectTrue(2), expectTrue(3), + expectFalse(0), expectFalse(4), + + "A in (1)", + expectTrue(1), expectFalse(0), + + "A in (1.2, 3.4)", + expectTrue(1.2), expectTrue(3.4), expectFalse(0.0), + + "A in ('foo', 'bar')", + expectTrue("foo"), expectTrue("bar"), expectFalse("baz"), + + "A in ('foo', 'bar') and 'bl'+'im'='blim'", + expectTrue("foo"), expectTrue("bar"), expectFalse("baz"), + + "A in (B, C, D)", // requires fix for CR 6604768 + expectTrue(1, 1, 2, 3), expectFalse(1, 2, 3, 4), + + "A not in (B, C, D)", + expectTrue(1, 2, 3, 4), expectFalse(1, 1, 2, 3), + + // QUOTING + + "\"LIKE\" = 1 and \"NOT\" = 2 and \"INSTANCEOF\" = 3 and " + + "\"TRUE\" = 4 and \"FALSE\" = 5", + newTester( + new String[] {"LIKE", "NOT", "INSTANCEOF", "TRUE", "FALSE"}, + new Object[] {1, 2, 3, 4, 5}, + true), + newTester( + new String[] {"LIKE", "NOT", "INSTANCEOF", "TRUE", "FALSE"}, + new Object[] {5, 4, 3, 2, 1}, + false), + + "\"\"\"woo\"\"\" = 5", + newTester(new String[] {"\"woo\""}, new Object[] {5}, true), + newTester(new String[] {"\"woo\""}, new Object[] {4}, false), + expectFalse(), + + // INSTANCEOF + + "instanceof '" + Tester.class.getName() + "'", + expectTrue(), + + "instanceof '" + String.class.getName() + "'", + expectFalse(), + + // LIKE OBJECTNAME + + // The test MBean is registered as a:b=c + "like 'a:b=c'", expectTrue(), + "like 'a:*'", expectTrue(), + "like '*:b=c'", expectTrue(), + "like 'a:b=*'", expectTrue(), + "like 'a:b=?'", expectTrue(), + "like 'd:b=c'", expectFalse(), + "like 'a:b=??*'", expectFalse(), + "like 'a:b=\"can''t\"'", expectFalse(), + + // QUALIFIED ATTRIBUTE + + Tester.class.getName() + "#A = 5", + expectTrue(5), expectFalse(4), + + Tester.class.getName() + " # A = 5", + expectTrue(5), expectFalse(4), + + Tester.class.getSuperclass().getName() + "#A = 5", + expectFalse(5), + + DynamicMBean.class.getName() + "#A = 5", + expectFalse(5), + + Tester.class.getName() + "#A = 5", + new Tester(new String[] {"A"}, new Object[] {5}, false) {}, + // note the little {} at the end which means this is a subclass + // and therefore QualifiedAttributeValue should return false. + + MBeanServerDelegate.class.getName() + "#SpecificationName LIKE '%'", + new Wrapped(new MBeanServerDelegate(), true), + new Tester(new String[] {"SpecificationName"}, new Object[] {"JMX"}, false), + + // DOTTED ATTRIBUTE + + "A.canonicalName = '" + + MBeanServerDelegate.DELEGATE_NAME.getCanonicalName() + "'", + expectTrue(MBeanServerDelegate.DELEGATE_NAME), + expectFalse(ObjectName.WILDCARD), + + "A.class.name = 'java.lang.String'", + expectTrue("blim"), expectFalse(95), expectFalse((Object) null), + + "A.canonicalName like 'JMImpl%:%'", + expectTrue(MBeanServerDelegate.DELEGATE_NAME), + expectFalse(ObjectName.WILDCARD), + + "A.true = 'blim'", + new Tester(new String[] {"A.true"}, new Object[] {"blim"}, true), + new Tester(new String[] {"A.true"}, new Object[] {"blam"}, false), + + "\"A.true\" = 'blim'", + new Tester(new String[] {"A.true"}, new Object[] {"blim"}, true), + new Tester(new String[] {"A.true"}, new Object[] {"blam"}, false), + + MBeanServerDelegate.class.getName() + + "#SpecificationName.class.name = 'java.lang.String'", + new Wrapped(new MBeanServerDelegate(), true), + new Tester(new String[] {"SpecificationName"}, new Object[] {"JMX"}, false), + + MBeanServerDelegate.class.getName() + + " # SpecificationName.class.name = 'java.lang.String'", + new Wrapped(new MBeanServerDelegate(), true), + new Tester(new String[] {"SpecificationName"}, new Object[] {"JMX"}, false), + + // CLASS + + "class = '" + Tester.class.getName() + "'", + expectTrue(), + new Wrapped(new MBeanServerDelegate(), false), + + "Class = '" + Tester.class.getName() + "'", + expectTrue(), + new Wrapped(new MBeanServerDelegate(), false), + }; + + private static final String[] incorrectQueries = { + "", " ", "25", "()", "(a = b", "a = b)", "a.3 = 5", + "a = " + Long.MAX_VALUE + "0", + "a = " + Double.MAX_VALUE + "0", + "a = " + Double.MIN_VALUE + "0", + "a = 12a5", "a = 12e5e5", "a = 12.23.34", + "a = 'can't'", "a = 'unterminated", "a = 'asdf''", + "a = \"oops", "a = \"oops\"\"", + "a like 5", "true or false", + "a ! b", "? = 3", "a = @", "a##b", + "a between b , c", "a between and c", + "a in b, c", "a in 23", "a in (2, 3", "a in (2, 3x)", + "a like \"foo\"", "a like b", "a like 23", + "like \"foo\"", "like b", "like 23", "like 'a:b'", + "5 like 'a'", "'a' like '%'", + "a not= b", "a not = b", "a not b", "a not b c", + "a = +b", "a = +'b'", "a = +true", "a = -b", "a = -'b'", + "a#5 = b", "a#'b' = c", + "a instanceof b", "a instanceof 17", "a instanceof", + "a like 'oops\\'", "a like '[oops'", + + // Check that -Long.MIN_VALUE is an illegal constant. This is one more + // than Long.MAX_VALUE and, like the Java language, we only allow it + // if it is the operand of unary minus. + "a = " + Long.toString(Long.MIN_VALUE).substring(1), + }; + + public static void main(String[] args) throws Exception { + int nexti; + String failed = null; + + System.out.println("TESTING CORRECT QUERY STRINGS"); + for (int i = 0; i < queryTests.length; i = nexti) { + for (nexti = i + 1; nexti < queryTests.length; nexti++) { + if (queryTests[nexti] instanceof String) + break; + } + if (!(queryTests[i] instanceof String)) + throw new Exception("Test bug: should be string: " + queryTests[i]); + + String qs = (String) queryTests[i]; + System.out.println("Test: " + qs); + + QueryExp qe = Query.fromString(qs); + String qes = Query.toString(qe); + System.out.println("...parses to: " + qes); + final QueryExp[] queries; + if (qes.equals(qs)) + queries = new QueryExp[] {qe}; + else { + QueryExp qe2 = Query.fromString(qes); + String qes2 = Query.toString(qe2); + System.out.println("...which parses to: " + qes2); + if (qes.equals(qes2)) + queries = new QueryExp[] {qe}; + else + queries = new QueryExp[] {qe, qe2}; + } + + for (int j = i + 1; j < nexti; j++) { + Object mbean; + if (queryTests[j] instanceof Wrapped) + mbean = ((Wrapped) queryTests[j]).mbean(); + else + mbean = queryTests[j]; + boolean expect = ((ExpectedValue) queryTests[j]).expectedValue(); + for (QueryExp qet : queries) { + boolean actual = runQuery(qet, mbean); + boolean ok = (expect == actual); + System.out.println( + "..." + mbean + " -> " + actual + + (ok ? " (OK)" : " ####INCORRECT####")); + if (!ok) + failed = qs; + } + } + } + + System.out.println(); + System.out.println("TESTING INCORRECT QUERY STRINGS"); + for (String s : incorrectQueries) { + try { + QueryExp qe = Query.fromString(s); + System.out.println("###DID NOT GET ERROR:### \"" + s + "\""); + failed = s; + } catch (IllegalArgumentException e) { + String es = (e.getClass() == IllegalArgumentException.class) ? + e.getMessage() : e.toString(); + System.out.println("OK: exception for \"" + s + "\": " + es); + } + } + + if (failed == null) + System.out.println("TEST PASSED"); + else + throw new Exception("TEST FAILED: Last failure: " + failed); + } + + private static boolean runQuery(QueryExp qe, Object mbean) + throws Exception { + MBeanServer mbs = MBeanServerFactory.newMBeanServer(); + ObjectName name = new ObjectName("a:b=c"); + mbs.registerMBean(mbean, name); + Set<ObjectName> names = mbs.queryNames(new ObjectName("a:*"), qe); + if (names.isEmpty()) + return false; + if (names.equals(Collections.singleton(name))) + return true; + throw new Exception("Unexpected query result set: " + names); + } + + private static interface ExpectedValue { + public boolean expectedValue(); + } + + private static class Wrapped implements ExpectedValue { + private final Object mbean; + private final boolean expect; + + Wrapped(Object mbean, boolean expect) { + this.mbean = mbean; + this.expect = expect; + } + + Object mbean() { + return mbean; + } + + public boolean expectedValue() { + return expect; + } + } + + private static class Tester implements DynamicMBean, ExpectedValue { + private final AttributeList attributes; + private final boolean expectedValue; + + Tester(AttributeList attributes, boolean expectedValue) { + this.attributes = attributes; + this.expectedValue = expectedValue; + } + + Tester(String[] names, Object[] values, boolean expectedValue) { + this(makeAttributeList(names, values), expectedValue); + } + + private static AttributeList makeAttributeList( + String[] names, Object[] values) { + if (names.length != values.length) + throw new Error("Test bug: names and values different length"); + AttributeList list = new AttributeList(); + for (int i = 0; i < names.length; i++) + list.add(new Attribute(names[i], values[i])); + return list; + } + + public Object getAttribute(String attribute) + throws AttributeNotFoundException { + for (Attribute a : attributes.asList()) { + if (a.getName().equals(attribute)) + return a.getValue(); + } + throw new AttributeNotFoundException(attribute); + } + + public void setAttribute(Attribute attribute) { + throw new UnsupportedOperationException(); + } + + public AttributeList getAttributes(String[] attributes) { + AttributeList list = new AttributeList(); + for (String attribute : attributes) { + try { + list.add(new Attribute(attribute, getAttribute(attribute))); + } catch (AttributeNotFoundException e) { + // OK: ignore, per semantics of getAttributes + } + } + return list; + } + + public AttributeList setAttributes(AttributeList attributes) { + throw new UnsupportedOperationException(); + } + + public Object invoke(String actionName, Object[] params, String[] signature) { + throw new UnsupportedOperationException(); + } + + public MBeanInfo getMBeanInfo() { + MBeanAttributeInfo mbais[] = new MBeanAttributeInfo[attributes.size()]; + for (int i = 0; i < mbais.length; i++) { + Attribute attr = attributes.asList().get(i); + String name = attr.getName(); + Object value = attr.getValue(); + String type = + ((value == null) ? new Object() : value).getClass().getName(); + mbais[i] = new MBeanAttributeInfo( + name, type, name, true, false, false); + } + return new MBeanInfo( + getClass().getName(), "descr", mbais, null, null, null); + } + + public boolean expectedValue() { + return expectedValue; + } + + @Override + public String toString() { + return attributes.toString(); + } + } + + // Method rather than field, to avoid circular init dependencies + private static String[] abcd() { + return new String[] {"A", "B", "C", "D"}; + } + + private static String[] onetwo() { + return new String[] {"One", "two"}; + } + + private static Object expectTrue(Object... attrs) { + return newTester(abcd(), attrs, true); + } + + private static Object expectFalse(Object... attrs) { + return newTester(abcd(), attrs, false); + } + + private static Object expectTrueOneTwo(Object... attrs) { + return newTester(onetwo(), attrs, true); + } + + private static Object expectFalseOneTwo(Object... attrs) { + return newTester(onetwo(), attrs, false); + } + + private static Object newTester(String[] names, Object[] attrs, boolean expect) { + AttributeList list = new AttributeList(); + for (int i = 0; i < attrs.length; i++) + list.add(new Attribute(names[i], attrs[i])); + return new Tester(list, expect); + } +}