jdk/src/share/classes/com/sun/beans/ObjectHandler.java
changeset 1878 66c8fff7b93a
parent 1877 b60cca94e94d
parent 1861 4087969c2d08
child 1879 04b2620edc72
--- a/jdk/src/share/classes/com/sun/beans/ObjectHandler.java	Thu Jan 29 21:48:36 2009 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,479 +0,0 @@
-/*
- * Copyright 2003-2006 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 com.sun.beans;
-
-import com.sun.beans.finder.ClassFinder;
-
-import java.beans.*;
-import java.util.*;
-
-import org.xml.sax.*;
-
-import static java.util.Locale.ENGLISH;
-
-/**
- * <b>WARNING</b>: This class is an implementation detail and only meant
- * for use within the core platform. You should NOT depend upon it! This
- * API may change drastically between dot dot release, and it may even be
- * removed.
- *
- * @see java.beans.XMLEncoder
- * @see java.io.ObjectInputStream
- *
- * @since 1.4
- *
- * @author Philip Milne
- */
-public class ObjectHandler extends HandlerBase {
-
-    public static Class typeNameToClass(String typeName) {
-        typeName = typeName.intern();
-        if (typeName == "boolean") return Boolean.class;
-        if (typeName == "byte") return Byte.class;
-        if (typeName == "char") return Character.class;
-        if (typeName == "short") return Short.class;
-        if (typeName == "int") return Integer.class;
-        if (typeName == "long") return Long.class;
-        if (typeName == "float") return Float.class;
-        if (typeName == "double") return Double.class;
-        if (typeName == "void") return Void.class;
-        return null;
-    }
-
-    public static Class typeNameToPrimitiveClass(String typeName) {
-        typeName = typeName.intern();
-        if (typeName == "boolean") return boolean.class;
-        if (typeName == "byte") return byte.class;
-        if (typeName == "char") return char.class;
-        if (typeName == "short") return short.class;
-        if (typeName == "int") return int.class;
-        if (typeName == "long") return long.class;
-        if (typeName == "float") return float.class;
-        if (typeName == "double") return double.class;
-        if (typeName == "void") return void.class;
-        return null;
-    }
-
-    /**
-     * Returns the <code>Class</code> object associated with
-     * the class or interface with the given string name,
-     * using the default class loader.
-     *
-     * @param name  fully qualified name of the desired class
-     * @param cl    class loader from which the class must be loaded
-     * @return class object representing the desired class
-     *
-     * @exception ClassNotFoundException  if the class cannot be located
-     *                                    by the specified class loader
-     *
-     * @deprecated As of JDK version 7, replaced by
-     *             {@link ClassFinder#resolveClass(String)}.
-     */
-    @Deprecated
-    public static Class classForName(String name) throws ClassNotFoundException {
-        return ClassFinder.resolveClass(name);
-    }
-
-    /**
-     * Returns the <code>Class</code> object associated with
-     * the class or interface with the given string name,
-     * using the given class loader.
-     *
-     * @param name  fully qualified name of the desired class
-     * @param cl    class loader from which the class must be loaded
-     * @return class object representing the desired class
-     *
-     * @exception ClassNotFoundException  if the class cannot be located
-     *                                    by the specified class loader
-     *
-     * @deprecated As of JDK version 7, replaced by
-     *             {@link ClassFinder#resolveClass(String,ClassLoader)}.
-     */
-    @Deprecated
-    public static Class classForName(String name, ClassLoader cl)
-        throws ClassNotFoundException {
-        return ClassFinder.resolveClass(name, cl);
-    }
-
-    private Hashtable environment;
-    private Vector expStack;
-    private StringBuffer chars;
-    private XMLDecoder is;
-    private ClassLoader ldr;
-    private int itemsRead = 0;
-    private boolean isString;
-
-    public ObjectHandler() {
-        environment = new Hashtable();
-        expStack = new Vector();
-        chars = new StringBuffer();
-    }
-
-    public ObjectHandler(XMLDecoder is) {
-        this();
-        this.is = is;
-    }
-
-    /* loader can be null */
-    public ObjectHandler(XMLDecoder is, ClassLoader loader) {
-        this(is);
-        this.ldr = loader;
-    }
-
-
-    public void reset() {
-        expStack.clear();
-        chars.setLength(0);
-        MutableExpression e = new MutableExpression();
-        e.setTarget(classForName2("java.lang.Object"));
-        e.setMethodName("null");
-        expStack.add(e);
-    }
-
-    private Object getValue(Expression exp) {
-        try {
-            return exp.getValue();
-        }
-        catch (Exception e) {
-            if (is != null) {
-                is.getExceptionListener().exceptionThrown(e);
-            }
-            return null;
-        }
-    }
-
-    private void addArg(Object arg) {
-        lastExp().addArg(arg);
-    }
-
-    private Object pop(Vector v) {
-        int last = v.size()-1;
-        Object result = v.get(last);
-        v.remove(last);
-        return result;
-    }
-
-    private Object eval() {
-        return getValue(lastExp());
-    }
-
-    private MutableExpression lastExp() {
-        return (MutableExpression)expStack.lastElement();
-    }
-
-    public Object dequeueResult() {
-        Object[] results = lastExp().getArguments();
-        return results[itemsRead++];
-    }
-
-    private boolean isPrimitive(String name) {
-        return name != "void" && typeNameToClass(name) != null;
-    }
-
-    private void simulateException(String message) {
-        Exception e = new Exception(message);
-        e.fillInStackTrace();
-        if (is != null) {
-            is.getExceptionListener().exceptionThrown(e);
-        }
-    }
-
-    private Class classForName2(String name) {
-        try {
-            return ClassFinder.resolveClass(name, this.ldr);
-        }
-        catch (ClassNotFoundException e) {
-            if (is != null) {
-                is.getExceptionListener().exceptionThrown(e);
-            }
-        }
-        return null;
-    }
-
-    private HashMap getAttributes(AttributeList attrs) {
-        HashMap attributes = new HashMap();
-        if (attrs != null && attrs.getLength() > 0) {
-            for(int i = 0; i < attrs.getLength(); i++) {
-                attributes.put(attrs.getName(i), attrs.getValue(i));
-            }
-        }
-        return attributes;
-    }
-
-    public void startElement(String name, AttributeList attrs) throws SAXException {
-        name = name.intern(); // Xerces parser does not supply unique tag names.
-        if (this.isString) {
-            parseCharCode(name, getAttributes(attrs));
-            return;
-        }
-        chars.setLength(0);
-
-        HashMap attributes = getAttributes(attrs);
-        MutableExpression e = new MutableExpression();
-
-        // Target
-        String className = (String)attributes.get("class");
-        if (className != null) {
-            e.setTarget(classForName2(className));
-        }
-
-        // Property
-        Object property = attributes.get("property");
-        String index = (String)attributes.get("index");
-        if (index != null) {
-            property = new Integer(index);
-            e.addArg(property);
-        }
-        e.setProperty(property);
-
-        // Method
-        String methodName = (String)attributes.get("method");
-        if (methodName == null && property == null) {
-            methodName = "new";
-        }
-        e.setMethodName(methodName);
-
-        // Tags
-        if (name == "string") {
-            e.setTarget(String.class);
-            e.setMethodName("new");
-            this.isString = true;
-        }
-        else if (isPrimitive(name)){
-            Class wrapper = typeNameToClass(name);
-            e.setTarget(wrapper);
-            e.setMethodName("new");
-            parseCharCode(name, attributes);
-        }
-        else if (name == "class") {
-            e.setTarget(Class.class);
-            e.setMethodName("forName");
-        }
-        else if (name == "null") {
-            // Create an arbitrary expression that has a value of null - for
-            // consistency.
-            e.setTarget(Object.class);
-            e.setMethodName("getSuperclass");
-            e.setValue(null);
-        }
-        else if (name == "void") {
-            if (e.getTarget() == null) { // this check is for "void class="foo" method= ..."
-                e.setTarget(eval());
-            }
-        }
-        else if (name == "array") {
-            // The class attribute means sub-type for arrays.
-            String subtypeName = (String)attributes.get("class");
-            Class subtype = (subtypeName == null) ? Object.class : classForName2(subtypeName);
-            String length = (String)attributes.get("length");
-            if (length != null) {
-                e.setTarget(java.lang.reflect.Array.class);
-                e.addArg(subtype);
-                e.addArg(new Integer(length));
-            }
-            else {
-                Class arrayClass = java.lang.reflect.Array.newInstance(subtype, 0).getClass();
-                e.setTarget(arrayClass);
-            }
-        }
-        else if (name == "java") {
-            e.setValue(is); // The outermost scope is the stream itself.
-        }
-        else if (name == "object") {
-        }
-        else {
-            simulateException("Unrecognized opening tag: " + name + " " + attrsToString(attrs));
-            return;
-        }
-
-        // ids
-        String idName = (String)attributes.get("id");
-        if (idName != null) {
-            environment.put(idName, e);
-        }
-
-        // idrefs
-        String idrefName = (String)attributes.get("idref");
-        if (idrefName != null) {
-            e.setValue(lookup(idrefName));
-        }
-
-        // fields
-        String fieldName = (String)attributes.get("field");
-        if (fieldName != null) {
-            e.setValue(getFieldValue(e.getTarget(), fieldName));
-        }
-        expStack.add(e);
-    }
-
-    private Object getFieldValue(Object target, String fieldName) {
-        try {
-            Class type = target.getClass();
-            if (type == Class.class) {
-                type = (Class)target;
-            }
-            java.lang.reflect.Field f = sun.reflect.misc.FieldUtil.getField(type, fieldName);
-            return f.get(target);
-        }
-        catch (Exception e) {
-            if (is != null) {
-                is.getExceptionListener().exceptionThrown(e);
-            }
-            return null;
-        }
-    }
-
-    private String attrsToString(AttributeList attrs) {
-        StringBuffer b = new StringBuffer();
-        for (int i = 0; i < attrs.getLength (); i++) {
-            b.append(attrs.getName(i)+"=\""+attrs.getValue(i)+"\" ");
-        }
-        return b.toString();
-    }
-
-    public void characters(char buf [], int offset, int len) throws SAXException {
-        chars.append(new String(buf, offset, len));
-    }
-
-    private void parseCharCode(String name, Map map) {
-        if (name == "char") {
-            String value = (String) map.get("code");
-            if (value != null) {
-                int code = Integer.decode(value);
-                for (char ch : Character.toChars(code)) {
-                    this.chars.append(ch);
-                }
-            }
-        }
-    }
-
-    public Object lookup(String s) {
-        Expression e = (Expression)environment.get(s);
-        if (e == null) {
-            simulateException("Unbound variable: " + s);
-        }
-        return getValue(e);
-    }
-
-    public void register(String id, Object value) {
-        Expression e = new MutableExpression();
-        e.setValue(value);
-        environment.put(id, e);
-    }
-
-    public void endElement(String name) throws SAXException {
-        name = name.intern(); // Xerces parser does not supply unique tag names.
-        if (name == "string") {
-            this.isString = false;
-        } else if (this.isString) {
-            return;
-        }
-        if (name == "java") {
-            return;
-        }
-        if (isPrimitive(name) || name == "string" || name == "class") {
-            addArg(chars.toString());
-        }
-        if (name == "object" || name == "array" || name == "void" ||
-                isPrimitive(name) || name == "string" || name == "class" ||
-                name == "null") {
-            Expression e = (Expression)pop(expStack);
-            Object value = getValue(e);
-            if (name != "void") {
-                addArg(value);
-            }
-        }
-        else {
-            simulateException("Unrecognized closing tag: " + name);
-        }
-    }
-}
-
-
-class MutableExpression extends Expression {
-    private Object target;
-    private String methodName;
-
-    private Object property;
-    private Vector argV = new Vector();
-
-    private String capitalize(String propertyName) {
-        if (propertyName.length() == 0) {
-            return propertyName;
-        }
-        return propertyName.substring(0, 1).toUpperCase(ENGLISH) + propertyName.substring(1);
-    }
-
-    public MutableExpression() {
-        super(null, null, null);
-    }
-
-    public Object[] getArguments() {
-        return argV.toArray();
-    }
-
-    public String getMethodName() {
-        if (property == null) {
-            return methodName;
-        }
-        int setterArgs = (property instanceof String) ? 1 : 2;
-        String methodName = (argV.size() == setterArgs) ? "set" : "get";
-        if (property instanceof String) {
-            return methodName + capitalize((String)property);
-        }
-        else {
-            return methodName;
-        }
-    }
-
-    public void addArg(Object arg) {
-        argV.add(arg);
-    }
-
-    public void setTarget(Object target) {
-        this.target = target;
-    }
-
-    public Object getTarget() {
-        return target;
-    }
-
-    public void setMethodName(String methodName) {
-        this.methodName = methodName;
-    }
-
-    public void setProperty(Object property) {
-        this.property = property;
-    }
-
-    public void setValue(Object value) {
-        super.setValue(value);
-    }
-
-    public Object getValue() throws Exception {
-        return super.getValue();
-    }
-}