--- 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();
- }
-}