jaxp/src/share/classes/com/sun/org/apache/xalan/internal/xsltc/trax/TemplatesImpl.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/share/classes/com/sun/org/apache/xalan/internal/xsltc/trax/TemplatesImpl.java Sun Mar 04 11:55:34 2012 -0800
@@ -0,0 +1,427 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/*
+ * Copyright 2001-2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * $Id: TemplatesImpl.java,v 1.8 2007/03/26 20:12:27 spericas Exp $
+ */
+
+package com.sun.org.apache.xalan.internal.xsltc.trax;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.Properties;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+import javax.xml.XMLConstants;
+import javax.xml.transform.Templates;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.URIResolver;
+
+import com.sun.org.apache.xalan.internal.xsltc.DOM;
+import com.sun.org.apache.xalan.internal.xsltc.Translet;
+import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;
+import com.sun.org.apache.xalan.internal.xsltc.runtime.AbstractTranslet;
+import com.sun.org.apache.xalan.internal.xsltc.runtime.Hashtable;
+
+/**
+ * @author Morten Jorgensen
+ * @author G. Todd Millerj
+ * @author Jochen Cordes <Jochen.Cordes@t-online.de>
+ * @author Santiago Pericas-Geertsen
+ */
+public final class TemplatesImpl implements Templates, Serializable {
+ static final long serialVersionUID = 673094361519270707L;
+ /**
+ * Name of the superclass of all translets. This is needed to
+ * determine which, among all classes comprising a translet,
+ * is the main one.
+ */
+ private static String ABSTRACT_TRANSLET
+ = "com.sun.org.apache.xalan.internal.xsltc.runtime.AbstractTranslet";
+
+ /**
+ * Name of the main class or default name if unknown.
+ */
+ private String _name = null;
+
+ /**
+ * Contains the actual class definition for the translet class and
+ * any auxiliary classes.
+ */
+ private byte[][] _bytecodes = null;
+
+ /**
+ * Contains the translet class definition(s). These are created when
+ * this Templates is created or when it is read back from disk.
+ */
+ private Class[] _class = null;
+
+ /**
+ * The index of the main translet class in the arrays _class[] and
+ * _bytecodes.
+ */
+ private int _transletIndex = -1;
+
+ /**
+ * Contains the list of auxiliary class definitions.
+ */
+ private Hashtable _auxClasses = null;
+
+ /**
+ * Output properties of this translet.
+ */
+ private Properties _outputProperties;
+
+ /**
+ * Number of spaces to add for output indentation.
+ */
+ private int _indentNumber;
+
+ /**
+ * This URIResolver is passed to all Transformers.
+ * Declaring it transient to fix bug 22438
+ */
+ private transient URIResolver _uriResolver = null;
+
+ /**
+ * Cache the DTM for the stylesheet in a thread local variable,
+ * which is used by the document('') function.
+ * Use ThreadLocal because a DTM cannot be shared between
+ * multiple threads.
+ * Declaring it transient to fix bug 22438
+ */
+ private transient ThreadLocal _sdom = new ThreadLocal();
+
+ /**
+ * A reference to the transformer factory that this templates
+ * object belongs to.
+ */
+ private transient TransformerFactoryImpl _tfactory = null;
+
+ static final class TransletClassLoader extends ClassLoader {
+ TransletClassLoader(ClassLoader parent) {
+ super(parent);
+ }
+
+ /**
+ * Access to final protected superclass member from outer class.
+ */
+ Class defineClass(final byte[] b) {
+ return defineClass(null, b, 0, b.length);
+ }
+ }
+
+
+ /**
+ * Create an XSLTC template object from the bytecodes.
+ * The bytecodes for the translet and auxiliary classes, plus the name of
+ * the main translet class, must be supplied.
+ */
+ protected TemplatesImpl(byte[][] bytecodes, String transletName,
+ Properties outputProperties, int indentNumber,
+ TransformerFactoryImpl tfactory)
+ {
+ _bytecodes = bytecodes;
+ _name = transletName;
+ _outputProperties = outputProperties;
+ _indentNumber = indentNumber;
+ _tfactory = tfactory;
+ }
+
+ /**
+ * Create an XSLTC template object from the translet class definition(s).
+ */
+ protected TemplatesImpl(Class[] transletClasses, String transletName,
+ Properties outputProperties, int indentNumber,
+ TransformerFactoryImpl tfactory)
+ {
+ _class = transletClasses;
+ _name = transletName;
+ _transletIndex = 0;
+ _outputProperties = outputProperties;
+ _indentNumber = indentNumber;
+ _tfactory = tfactory;
+ }
+
+
+ /**
+ * Need for de-serialization, see readObject().
+ */
+ public TemplatesImpl() { }
+
+ /**
+ * Overrides the default readObject implementation since we decided
+ * it would be cleaner not to serialize the entire tranformer
+ * factory. [ ref bugzilla 12317 ]
+ * We need to check if the user defined class for URIResolver also
+ * implemented Serializable
+ * if yes then we need to deserialize the URIResolver
+ * Fix for bugzilla bug 22438
+ */
+ private void readObject(ObjectInputStream is)
+ throws IOException, ClassNotFoundException
+ {
+ is.defaultReadObject();
+ if (is.readBoolean()) {
+ _uriResolver = (URIResolver) is.readObject();
+ }
+
+ _tfactory = new TransformerFactoryImpl();
+ }
+
+
+ /**
+ * This is to fix bugzilla bug 22438
+ * If the user defined class implements URIResolver and Serializable
+ * then we want it to get serialized
+ */
+ private void writeObject(ObjectOutputStream os)
+ throws IOException, ClassNotFoundException {
+ os.defaultWriteObject();
+ if (_uriResolver instanceof Serializable) {
+ os.writeBoolean(true);
+ os.writeObject((Serializable) _uriResolver);
+ }
+ else {
+ os.writeBoolean(false);
+ }
+ }
+
+
+ /**
+ * Store URIResolver needed for Transformers.
+ */
+ public synchronized void setURIResolver(URIResolver resolver) {
+ _uriResolver = resolver;
+ }
+
+ /**
+ * The TransformerFactory must pass us the translet bytecodes using this
+ * method before we can create any translet instances
+ *
+ * Note: This method is private for security reasons. See
+ * CR 6537898. When merging with Apache, we must ensure
+ * that the privateness of this method is maintained (that
+ * is why it wasn't removed).
+ */
+ private synchronized void setTransletBytecodes(byte[][] bytecodes) {
+ _bytecodes = bytecodes;
+ }
+
+ /**
+ * Returns the translet bytecodes stored in this template
+ *
+ * Note: This method is private for security reasons. See
+ * CR 6537898. When merging with Apache, we must ensure
+ * that the privateness of this method is maintained (that
+ * is why it wasn't removed).
+ */
+ private synchronized byte[][] getTransletBytecodes() {
+ return _bytecodes;
+ }
+
+ /**
+ * Returns the translet bytecodes stored in this template
+ *
+ * Note: This method is private for security reasons. See
+ * CR 6537898. When merging with Apache, we must ensure
+ * that the privateness of this method is maintained (that
+ * is why it wasn't removed).
+ */
+ private synchronized Class[] getTransletClasses() {
+ try {
+ if (_class == null) defineTransletClasses();
+ }
+ catch (TransformerConfigurationException e) {
+ // Falls through
+ }
+ return _class;
+ }
+
+ /**
+ * Returns the index of the main class in array of bytecodes
+ */
+ public synchronized int getTransletIndex() {
+ try {
+ if (_class == null) defineTransletClasses();
+ }
+ catch (TransformerConfigurationException e) {
+ // Falls through
+ }
+ return _transletIndex;
+ }
+
+ /**
+ * The TransformerFactory should call this method to set the translet name
+ */
+ protected synchronized void setTransletName(String name) {
+ _name = name;
+ }
+
+ /**
+ * Returns the name of the main translet class stored in this template
+ */
+ protected synchronized String getTransletName() {
+ return _name;
+ }
+
+ /**
+ * Defines the translet class and auxiliary classes.
+ * Returns a reference to the Class object that defines the main class
+ */
+ private void defineTransletClasses()
+ throws TransformerConfigurationException {
+
+ if (_bytecodes == null) {
+ ErrorMsg err = new ErrorMsg(ErrorMsg.NO_TRANSLET_CLASS_ERR);
+ throw new TransformerConfigurationException(err.toString());
+ }
+
+ TransletClassLoader loader = (TransletClassLoader)
+ AccessController.doPrivileged(new PrivilegedAction() {
+ public Object run() {
+ return new TransletClassLoader(ObjectFactory.findClassLoader());
+ }
+ });
+
+ try {
+ final int classCount = _bytecodes.length;
+ _class = new Class[classCount];
+
+ if (classCount > 1) {
+ _auxClasses = new Hashtable();
+ }
+
+ for (int i = 0; i < classCount; i++) {
+ _class[i] = loader.defineClass(_bytecodes[i]);
+ final Class superClass = _class[i].getSuperclass();
+
+ // Check if this is the main class
+ if (superClass.getName().equals(ABSTRACT_TRANSLET)) {
+ _transletIndex = i;
+ }
+ else {
+ _auxClasses.put(_class[i].getName(), _class[i]);
+ }
+ }
+
+ if (_transletIndex < 0) {
+ ErrorMsg err= new ErrorMsg(ErrorMsg.NO_MAIN_TRANSLET_ERR, _name);
+ throw new TransformerConfigurationException(err.toString());
+ }
+ }
+ catch (ClassFormatError e) {
+ ErrorMsg err = new ErrorMsg(ErrorMsg.TRANSLET_CLASS_ERR, _name);
+ throw new TransformerConfigurationException(err.toString());
+ }
+ catch (LinkageError e) {
+ ErrorMsg err = new ErrorMsg(ErrorMsg.TRANSLET_OBJECT_ERR, _name);
+ throw new TransformerConfigurationException(err.toString());
+ }
+ }
+
+ /**
+ * This method generates an instance of the translet class that is
+ * wrapped inside this Template. The translet instance will later
+ * be wrapped inside a Transformer object.
+ */
+ private Translet getTransletInstance()
+ throws TransformerConfigurationException {
+ try {
+ if (_name == null) return null;
+
+ if (_class == null) defineTransletClasses();
+
+ // The translet needs to keep a reference to all its auxiliary
+ // class to prevent the GC from collecting them
+ AbstractTranslet translet = (AbstractTranslet) _class[_transletIndex].newInstance();
+ translet.postInitialization();
+ translet.setTemplates(this);
+ if (_auxClasses != null) {
+ translet.setAuxiliaryClasses(_auxClasses);
+ }
+
+ return translet;
+ }
+ catch (InstantiationException e) {
+ ErrorMsg err = new ErrorMsg(ErrorMsg.TRANSLET_OBJECT_ERR, _name);
+ throw new TransformerConfigurationException(err.toString());
+ }
+ catch (IllegalAccessException e) {
+ ErrorMsg err = new ErrorMsg(ErrorMsg.TRANSLET_OBJECT_ERR, _name);
+ throw new TransformerConfigurationException(err.toString());
+ }
+ }
+
+ /**
+ * Implements JAXP's Templates.newTransformer()
+ *
+ * @throws TransformerConfigurationException
+ */
+ public synchronized Transformer newTransformer()
+ throws TransformerConfigurationException
+ {
+ TransformerImpl transformer;
+
+ transformer = new TransformerImpl(getTransletInstance(), _outputProperties,
+ _indentNumber, _tfactory);
+
+ if (_uriResolver != null) {
+ transformer.setURIResolver(_uriResolver);
+ }
+
+ if (_tfactory.getFeature(XMLConstants.FEATURE_SECURE_PROCESSING)) {
+ transformer.setSecureProcessing(true);
+ }
+ return transformer;
+ }
+
+ /**
+ * Implements JAXP's Templates.getOutputProperties(). We need to
+ * instanciate a translet to get the output settings, so
+ * we might as well just instanciate a Transformer and use its
+ * implementation of this method.
+ */
+ public synchronized Properties getOutputProperties() {
+ try {
+ return newTransformer().getOutputProperties();
+ }
+ catch (TransformerConfigurationException e) {
+ return null;
+ }
+ }
+
+ /**
+ * Return the thread local copy of the stylesheet DOM.
+ */
+ public DOM getStylesheetDOM() {
+ return (DOM)_sdom.get();
+ }
+
+ /**
+ * Set the thread local copy of the stylesheet DOM.
+ */
+ public void setStylesheetDOM(DOM sdom) {
+ _sdom.set(sdom);
+ }
+}