/* * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. */ /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ package com.sun.org.apache.xalan.internal.xsltc.compiler; import com.sun.org.apache.bcel.internal.classfile.JavaClass; import com.sun.org.apache.xalan.internal.XalanConstants; import com.sun.org.apache.xalan.internal.utils.SecuritySupport; import com.sun.org.apache.xalan.internal.utils.XMLSecurityManager; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Util; import com.sun.org.apache.xml.internal.dtm.DTM; import java.io.BufferedOutputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.Enumeration; import java.util.HashMap; import java.util.Map; import java.util.Objects; import java.util.Properties; import java.util.Vector; import java.util.jar.JarEntry; import java.util.jar.JarOutputStream; import java.util.jar.Manifest; import javax.xml.XMLConstants; import javax.xml.catalog.CatalogFeatures; import jdk.xml.internal.JdkXmlFeatures; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; /** * @author Jacek Ambroziak * @author Santiago Pericas-Geertsen * @author G. Todd Miller * @author Morten Jorgensen * @author John Howard (johnh@schemasoft.com) */ public final class XSLTC { // A reference to the main stylesheet parser object. private Parser _parser; // A reference to an external XMLReader (SAX parser) passed to us private XMLReader _reader = null; // A reference to an external SourceLoader (for use with include/import) private SourceLoader _loader = null; // A reference to the stylesheet being compiled. private Stylesheet _stylesheet; // Counters used by various classes to generate unique names. // private int _variableSerial = 1; private int _modeSerial = 1; private int _stylesheetSerial = 1; private int _stepPatternSerial = 1; private int _helperClassSerial = 0; private int _attributeSetSerial = 0; private int[] _numberFieldIndexes; // Name index tables private int _nextGType; // Next available element type private Vector _namesIndex; // Index of all registered QNames private Map _elements; // Map of all registered elements private Map _attributes; // Map of all registered attributes // Namespace index tables private int _nextNSType; // Next available namespace type private Vector _namespaceIndex; // Index of all registered namespaces private Map _namespaces; // Map of all registered namespaces private Map _namespacePrefixes;// Map of all registered namespace prefixes // All literal text in the stylesheet private ArrayList m_characterData; // These define the various methods for outputting the translet public static final int FILE_OUTPUT = 0; public static final int JAR_OUTPUT = 1; public static final int BYTEARRAY_OUTPUT = 2; public static final int CLASSLOADER_OUTPUT = 3; public static final int BYTEARRAY_AND_FILE_OUTPUT = 4; public static final int BYTEARRAY_AND_JAR_OUTPUT = 5; // Compiler options (passed from command line or XSLTC client) private boolean _debug = false; // -x private String _jarFileName = null; // -j private String _className = null; // -o private String _packageName = "die.verwandlung"; // override with -p private File _destDir = null; // -d private int _outputType = FILE_OUTPUT; // by default private Vector _classes; private Vector _bcelClasses; private boolean _callsNodeset = false; private boolean _multiDocument = false; private boolean _hasIdCall = false; /** * Set to true if template inlining is requested. Template * inlining used to be the default, but we have found that * Hotspots does a better job with shorter methods, so the * default is *not* to inline now. */ private boolean _templateInlining = false; /** * State of the secure processing feature. */ private boolean _isSecureProcessing = false; private boolean _useServicesMechanism = true; /** * protocols allowed for external references set by the stylesheet processing instruction, Import and Include element. */ private String _accessExternalStylesheet = XalanConstants.EXTERNAL_ACCESS_DEFAULT; /** * protocols allowed for external DTD references in source file and/or stylesheet. */ private String _accessExternalDTD = XalanConstants.EXTERNAL_ACCESS_DEFAULT; private XMLSecurityManager _xmlSecurityManager; private final JdkXmlFeatures _xmlFeatures; /** * Extension function class loader variables */ /* Class loader reference that will be used for external extension functions loading */ private ClassLoader _extensionClassLoader; /** * HashMap with the loaded classes */ private final Map _externalExtensionFunctions; /** * Catalog features */ CatalogFeatures _catalogFeatures; /** * XSLTC compiler constructor */ public XSLTC(boolean useServicesMechanism, JdkXmlFeatures featureManager) { _parser = new Parser(this, useServicesMechanism); _xmlFeatures = featureManager; _extensionClassLoader = null; _externalExtensionFunctions = new HashMap<>(); } /** * Set the state of the secure processing feature. */ public void setSecureProcessing(boolean flag) { _isSecureProcessing = flag; } /** * Return the state of the secure processing feature. */ public boolean isSecureProcessing() { return _isSecureProcessing; } /** * Return the state of the services mechanism feature. */ public boolean useServicesMechnism() { return _useServicesMechanism; } /** * Set the state of the services mechanism feature. */ public void setServicesMechnism(boolean flag) { _useServicesMechanism = flag; } /** * Return the value of the specified feature * @param name name of the feature * @return true if the feature is enabled, false otherwise */ public boolean getFeature(JdkXmlFeatures.XmlFeature name) { return _xmlFeatures.getFeature(name); } /** * Return allowed protocols for accessing external stylesheet. * @param name the name of the property * @return the value of the property */ public Object getProperty(String name) { if (name.equals(XMLConstants.ACCESS_EXTERNAL_STYLESHEET)) { return _accessExternalStylesheet; } else if (name.equals(XMLConstants.ACCESS_EXTERNAL_DTD)) { return _accessExternalDTD; } else if (name.equals(XalanConstants.SECURITY_MANAGER)) { return _xmlSecurityManager; } else if (name.equals(XalanConstants.JDK_EXTENSION_CLASSLOADER)) { return _extensionClassLoader; } else if (JdkXmlFeatures.CATALOG_FEATURES.equals(name)) { return _catalogFeatures; } return null; } /** * Set allowed protocols for accessing external stylesheet. * @param name the name of the property * @param value the value of the property */ public void setProperty(String name, Object value) { if (name.equals(XMLConstants.ACCESS_EXTERNAL_STYLESHEET)) { _accessExternalStylesheet = (String)value; } else if (name.equals(XMLConstants.ACCESS_EXTERNAL_DTD)) { _accessExternalDTD = (String)value; } else if (name.equals(XalanConstants.SECURITY_MANAGER)) { _xmlSecurityManager = (XMLSecurityManager)value; } else if (name.equals(XalanConstants.JDK_EXTENSION_CLASSLOADER)) { _extensionClassLoader = (ClassLoader) value; /* Clear the external extension functions HashMap if extension class loader was changed */ _externalExtensionFunctions.clear(); } else if (JdkXmlFeatures.CATALOG_FEATURES.equals(name)) { _catalogFeatures = (CatalogFeatures)value; } } /** * Only for user by the internal TrAX implementation. */ public Parser getParser() { return _parser; } /** * Only for user by the internal TrAX implementation. */ public void setOutputType(int type) { _outputType = type; } /** * Only for user by the internal TrAX implementation. */ public Properties getOutputProperties() { return _parser.getOutputProperties(); } /** * Initializes the compiler to compile a new stylesheet */ public void init() { reset(); _reader = null; _classes = new Vector(); _bcelClasses = new Vector(); } private void setExternalExtensionFunctions(String name, Class clazz) { if (_isSecureProcessing && clazz != null && !_externalExtensionFunctions.containsKey(name)) { _externalExtensionFunctions.put(name, clazz); } } /* * Function loads an external extension function. * The filtering of function types (external,internal) takes place in FunctionCall class * */ Class loadExternalFunction(String name) throws ClassNotFoundException { Class loaded = null; //Check if the function is not loaded already if (_externalExtensionFunctions.containsKey(name)) { loaded = _externalExtensionFunctions.get(name); } else if (_extensionClassLoader != null) { loaded = Class.forName(name, true, _extensionClassLoader); setExternalExtensionFunctions(name, loaded); } if (loaded == null) { throw new ClassNotFoundException(name); } //Return loaded class return (Class) loaded; } /* * Returns unmodifiable view of HashMap with loaded external extension * functions - will be needed for the TransformerImpl */ public Map getExternalExtensionFunctions() { return Collections.unmodifiableMap(_externalExtensionFunctions); } /** * Initializes the compiler to produce a new translet */ private void reset() { _nextGType = DTM.NTYPES; _elements = new HashMap<>(); _attributes = new HashMap<>(); _namespaces = new HashMap<>(); _namespaces.put("",new Integer(_nextNSType)); _namesIndex = new Vector(128); _namespaceIndex = new Vector(32); _namespacePrefixes = new HashMap<>(); _stylesheet = null; _parser.init(); //_variableSerial = 1; _modeSerial = 1; _stylesheetSerial = 1; _stepPatternSerial = 1; _helperClassSerial = 0; _attributeSetSerial = 0; _multiDocument = false; _hasIdCall = false; _numberFieldIndexes = new int[] { -1, // LEVEL_SINGLE -1, // LEVEL_MULTIPLE -1 // LEVEL_ANY }; _externalExtensionFunctions.clear(); } /** * Defines an external SourceLoader to provide the compiler with documents * referenced in xsl:include/import * @param loader The SourceLoader to use for include/import */ public void setSourceLoader(SourceLoader loader) { _loader = loader; } /** * Set a flag indicating if templates are to be inlined or not. The * default is to do inlining, but this causes problems when the * stylesheets have a large number of templates (e.g. branch targets * exceeding 64K or a length of a method exceeding 64K). */ public void setTemplateInlining(boolean templateInlining) { _templateInlining = templateInlining; } /** * Return the state of the template inlining feature. */ public boolean getTemplateInlining() { return _templateInlining; } /** * Set the parameters to use to locate the correct * processing instruction in the case where the input document to the * compiler (and parser) is an XML document. * @param media The media attribute to be matched. May be null, in which * case the prefered templates will be used (i.e. alternate = no). * @param title The value of the title attribute to match. May be null. * @param charset The value of the charset attribute to match. May be null. */ public void setPIParameters(String media, String title, String charset) { _parser.setPIParameters(media, title, charset); } /** * Compiles an XSL stylesheet pointed to by a URL * @param url An URL containing the input XSL stylesheet */ public boolean compile(URL url) { try { // Open input stream from URL and wrap inside InputSource final InputStream stream = url.openStream(); final InputSource input = new InputSource(stream); input.setSystemId(url.toString()); return compile(input, _className); } catch (IOException e) { _parser.reportError(Constants.FATAL, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); return false; } } /** * Compiles an XSL stylesheet pointed to by a URL * @param url An URL containing the input XSL stylesheet * @param name The name to assign to the translet class */ public boolean compile(URL url, String name) { try { // Open input stream from URL and wrap inside InputSource final InputStream stream = url.openStream(); final InputSource input = new InputSource(stream); input.setSystemId(url.toString()); return compile(input, name); } catch (IOException e) { _parser.reportError(Constants.FATAL, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); return false; } } /** * Compiles an XSL stylesheet passed in through an InputStream * @param stream An InputStream that will pass in the stylesheet contents * @param name The name of the translet class to generate * @return 'true' if the compilation was successful */ public boolean compile(InputStream stream, String name) { final InputSource input = new InputSource(stream); input.setSystemId(name); // We have nothing else!!! return compile(input, name); } /** * Compiles an XSL stylesheet passed in through an InputStream * @param input An InputSource that will pass in the stylesheet contents * @param name The name of the translet class to generate - can be null * @return 'true' if the compilation was successful */ public boolean compile(InputSource input, String name) { try { // Reset globals in case we're called by compile(Vector v); reset(); // The systemId may not be set, so we'll have to check the URL String systemId = null; if (input != null) { systemId = input.getSystemId(); } // Set the translet class name if not already set if (_className == null) { if (name != null) { setClassName(name); } else if (systemId != null && !systemId.equals("")) { setClassName(Util.baseName(systemId)); } // Ensure we have a non-empty class name at this point if (_className == null || _className.length() == 0) { setClassName("GregorSamsa"); // default translet name } } // Get the root node of the abstract syntax tree SyntaxTreeNode element = null; if (_reader == null) { element = _parser.parse(input); } else { element = _parser.parse(_reader, input); } // Compile the translet - this is where the work is done! if ((!_parser.errorsFound()) && (element != null)) { // Create a Stylesheet element from the root node _stylesheet = _parser.makeStylesheet(element); _stylesheet.setSourceLoader(_loader); _stylesheet.setSystemId(systemId); _stylesheet.setParentStylesheet(null); _stylesheet.setTemplateInlining(_templateInlining); _parser.setCurrentStylesheet(_stylesheet); // Create AST under the Stylesheet element (parse & type-check) _parser.createAST(_stylesheet); } // Generate the bytecodes and output the translet class(es) if ((!_parser.errorsFound()) && (_stylesheet != null)) { _stylesheet.setCallsNodeset(_callsNodeset); _stylesheet.setMultiDocument(_multiDocument); _stylesheet.setHasIdCall(_hasIdCall); // Class synchronization is needed for BCEL synchronized (getClass()) { _stylesheet.translate(); } } } catch (Exception e) { /*if (_debug)*/ e.printStackTrace(); _parser.reportError(Constants.FATAL, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); } catch (Error e) { if (_debug) e.printStackTrace(); _parser.reportError(Constants.FATAL, new ErrorMsg(ErrorMsg.JAXP_COMPILE_ERR, e)); } finally { _reader = null; // reset this here to be sure it is not re-used } return !_parser.errorsFound(); } /** * Compiles a set of stylesheets pointed to by a Vector of URLs * @param stylesheets A Vector containing URLs pointing to the stylesheets * @return 'true' if the compilation was successful */ public boolean compile(Vector stylesheets) { // Get the number of stylesheets (ie. URLs) in the vector final int count = stylesheets.size(); // Return straight away if the vector is empty if (count == 0) return true; // Special handling needed if the URL count is one, becuase the // _className global must not be reset if it was set explicitly if (count == 1) { final Object url = stylesheets.firstElement(); if (url instanceof URL) return compile((URL)url); else return false; } else { // Traverse all elements in the vector and compile final Enumeration urls = stylesheets.elements(); while (urls.hasMoreElements()) { _className = null; // reset, so that new name will be computed final Object url = urls.nextElement(); if (url instanceof URL) { if (!compile((URL)url)) return false; } } } return true; } /** * Returns an array of bytecode arrays generated by a compilation. * @return JVM bytecodes that represent translet class definition */ public byte[][] getBytecodes() { final int count = _classes.size(); final byte[][] result = new byte[count][1]; for (int i = 0; i < count; i++) result[i] = (byte[])_classes.elementAt(i); return result; } /** * Compiles a stylesheet pointed to by a URL. The result is put in a * set of byte arrays. One byte array for each generated class. * @param name The name of the translet class to generate * @param input An InputSource that will pass in the stylesheet contents * @param outputType The output type * @return JVM bytecodes that represent translet class definition */ public byte[][] compile(String name, InputSource input, int outputType) { _outputType = outputType; if (compile(input, name)) return getBytecodes(); else return null; } /** * Compiles a stylesheet pointed to by a URL. The result is put in a * set of byte arrays. One byte array for each generated class. * @param name The name of the translet class to generate * @param input An InputSource that will pass in the stylesheet contents * @return JVM bytecodes that represent translet class definition */ public byte[][] compile(String name, InputSource input) { return compile(name, input, BYTEARRAY_OUTPUT); } /** * Set the XMLReader to use for parsing the next input stylesheet * @param reader XMLReader (SAX2 parser) to use */ public void setXMLReader(XMLReader reader) { _reader = reader; } /** * Get the XMLReader to use for parsing the next input stylesheet */ public XMLReader getXMLReader() { return _reader ; } /** * Get a list of all compile error messages * @return A List containing all compile error messages */ public ArrayList getErrors() { return _parser.getErrors(); } /** * Get a list of all compile warning messages * @return A List containing all compile error messages */ public ArrayList getWarnings() { return _parser.getWarnings(); } /** * Print all compile error messages to standard output */ public void printErrors() { _parser.printErrors(); } /** * Print all compile warning messages to standard output */ public void printWarnings() { _parser.printWarnings(); } /** * This method is called by the XPathParser when it encounters a call * to the document() function. Affects the DOM used by the translet. */ protected void setMultiDocument(boolean flag) { _multiDocument = flag; } public boolean isMultiDocument() { return _multiDocument; } /** * This method is called by the XPathParser when it encounters a call * to the nodeset() extension function. Implies multi document. */ protected void setCallsNodeset(boolean flag) { if (flag) setMultiDocument(flag); _callsNodeset = flag; } public boolean callsNodeset() { return _callsNodeset; } protected void setHasIdCall(boolean flag) { _hasIdCall = flag; } public boolean hasIdCall() { return _hasIdCall; } /** * Set the class name for the generated translet. This class name is * overridden if multiple stylesheets are compiled in one go using the * compile(Vector urls) method. * @param className The name to assign to the translet class */ public void setClassName(String className) { final String base = Util.baseName(className); final String noext = Util.noExtName(base); String name = Util.toJavaName(noext); if (_packageName == null) _className = name; else _className = _packageName + '.' + name; } /** * Get the class name for the generated translet. */ public String getClassName() { return _className; } /** * Convert for Java class name of local system file name. * (Replace '.' with '/' on UNIX and replace '.' by '\' on Windows/DOS.) */ private String classFileName(final String className) { return className.replace('.', File.separatorChar) + ".class"; } /** * Generate an output File object to send the translet to */ private File getOutputFile(String className) { if (_destDir != null) return new File(_destDir, classFileName(className)); else return new File(classFileName(className)); } /** * Set the destination directory for the translet. * The current working directory will be used by default. */ public boolean setDestDirectory(String dstDirName) { final File dir = new File(dstDirName); if (SecuritySupport.getFileExists(dir) || dir.mkdirs()) { _destDir = dir; return true; } else { _destDir = null; return false; } } /** * Set an optional package name for the translet and auxiliary classes */ public void setPackageName(String packageName) { _packageName = Objects.requireNonNull(packageName); if (_className != null) setClassName(_className); } /** * Set the name of an optional JAR-file to dump the translet and * auxiliary classes to */ public void setJarFileName(String jarFileName) { final String JAR_EXT = ".jar"; if (jarFileName.endsWith(JAR_EXT)) _jarFileName = jarFileName; else _jarFileName = jarFileName + JAR_EXT; _outputType = JAR_OUTPUT; } public String getJarFileName() { return _jarFileName; } /** * Set the top-level stylesheet */ public void setStylesheet(Stylesheet stylesheet) { if (_stylesheet == null) _stylesheet = stylesheet; } /** * Returns the top-level stylesheet */ public Stylesheet getStylesheet() { return _stylesheet; } /** * Registers an attribute and gives it a type so that it can be mapped to * DOM attribute types at run-time. */ public int registerAttribute(QName name) { Integer code = _attributes.get(name.toString()); if (code == null) { code = _nextGType++; _attributes.put(name.toString(), code); final String uri = name.getNamespace(); final String local = "@"+name.getLocalPart(); if ((uri != null) && (!uri.equals(""))) _namesIndex.addElement(uri+":"+local); else _namesIndex.addElement(local); if (name.getLocalPart().equals("*")) { registerNamespace(name.getNamespace()); } } return code.intValue(); } /** * Registers an element and gives it a type so that it can be mapped to * DOM element types at run-time. */ public int registerElement(QName name) { // Register element (full QName) Integer code = _elements.get(name.toString()); if (code == null) { _elements.put(name.toString(), code = _nextGType++); _namesIndex.addElement(name.toString()); } if (name.getLocalPart().equals("*")) { registerNamespace(name.getNamespace()); } return code.intValue(); } /** * Registers a namespace prefix and gives it a type so that it can be mapped to * DOM namespace types at run-time. */ public int registerNamespacePrefix(QName name) { Integer code = _namespacePrefixes.get(name.toString()); if (code == null) { code = _nextGType++; _namespacePrefixes.put(name.toString(), code); final String uri = name.getNamespace(); if ((uri != null) && (!uri.equals(""))){ // namespace::ext2:ped2 will be made empty in TypedNamespaceIterator _namesIndex.addElement("?"); } else{ _namesIndex.addElement("?"+name.getLocalPart()); } } return code.intValue(); } /** * Registers a namespace and gives it a type so that it can be mapped to * DOM namespace types at run-time. */ public int registerNamespace(String namespaceURI) { Integer code = _namespaces.get(namespaceURI); if (code == null) { code = _nextNSType++; _namespaces.put(namespaceURI,code); _namespaceIndex.addElement(namespaceURI); } return code.intValue(); } public int nextModeSerial() { return _modeSerial++; } public int nextStylesheetSerial() { return _stylesheetSerial++; } public int nextStepPatternSerial() { return _stepPatternSerial++; } public int[] getNumberFieldIndexes() { return _numberFieldIndexes; } public int nextHelperClassSerial() { return _helperClassSerial++; } public int nextAttributeSetSerial() { return _attributeSetSerial++; } public Vector getNamesIndex() { return _namesIndex; } public Vector getNamespaceIndex() { return _namespaceIndex; } /** * Returns a unique name for every helper class needed to * execute a translet. */ public String getHelperClassName() { return getClassName() + '$' + _helperClassSerial++; } public void dumpClass(JavaClass clazz) { if (_outputType == FILE_OUTPUT || _outputType == BYTEARRAY_AND_FILE_OUTPUT) { File outFile = getOutputFile(clazz.getClassName()); String parentDir = outFile.getParent(); if (parentDir != null) { File parentFile = new File(parentDir); if (!SecuritySupport.getFileExists(parentFile)) parentFile.mkdirs(); } } try { switch (_outputType) { case FILE_OUTPUT: clazz.dump( new BufferedOutputStream( new FileOutputStream( getOutputFile(clazz.getClassName())))); break; case JAR_OUTPUT: _bcelClasses.addElement(clazz); break; case BYTEARRAY_OUTPUT: case BYTEARRAY_AND_FILE_OUTPUT: case BYTEARRAY_AND_JAR_OUTPUT: case CLASSLOADER_OUTPUT: ByteArrayOutputStream out = new ByteArrayOutputStream(2048); clazz.dump(out); _classes.addElement(out.toByteArray()); if (_outputType == BYTEARRAY_AND_FILE_OUTPUT) clazz.dump(new BufferedOutputStream( new FileOutputStream(getOutputFile(clazz.getClassName())))); else if (_outputType == BYTEARRAY_AND_JAR_OUTPUT) _bcelClasses.addElement(clazz); break; } } catch (Exception e) { e.printStackTrace(); } } /** * File separators are converted to forward slashes for ZIP files. */ private String entryName(File f) throws IOException { return f.getName().replace(File.separatorChar, '/'); } /** * Generate output JAR-file and packages */ public void outputToJar() throws IOException { // create the manifest final Manifest manifest = new Manifest(); final java.util.jar.Attributes atrs = manifest.getMainAttributes(); atrs.put(java.util.jar.Attributes.Name.MANIFEST_VERSION,"1.2"); final Map map = manifest.getEntries(); // create manifest Enumeration classes = _bcelClasses.elements(); final String now = (new Date()).toString(); final java.util.jar.Attributes.Name dateAttr = new java.util.jar.Attributes.Name("Date"); while (classes.hasMoreElements()) { final JavaClass clazz = (JavaClass)classes.nextElement(); final String className = clazz.getClassName().replace('.','/'); final java.util.jar.Attributes attr = new java.util.jar.Attributes(); attr.put(dateAttr, now); map.put(className+".class", attr); } final File jarFile = new File(_destDir, _jarFileName); final JarOutputStream jos = new JarOutputStream(new FileOutputStream(jarFile), manifest); classes = _bcelClasses.elements(); while (classes.hasMoreElements()) { final JavaClass clazz = (JavaClass)classes.nextElement(); final String className = clazz.getClassName().replace('.','/'); jos.putNextEntry(new JarEntry(className+".class")); final ByteArrayOutputStream out = new ByteArrayOutputStream(2048); clazz.dump(out); // dump() closes it's output stream out.writeTo(jos); } jos.close(); } /** * Turn debugging messages on/off */ public void setDebug(boolean debug) { _debug = debug; } /** * Get current debugging message setting */ public boolean debug() { return _debug; } /** * Retrieve a string representation of the character data to be stored * in the translet as a char[]. There may be more than * one such array required. * @param index The index of the char[]. Zero-based. * @return String The character data to be stored in the corresponding * char[]. */ public String getCharacterData(int index) { return (m_characterData.get(index)).toString(); } /** * Get the number of char[] arrays, thus far, that will be created to * store literal text in the stylesheet. */ public int getCharacterDataCount() { return (m_characterData != null) ? m_characterData.size() : 0; } /** * Add literal text to char arrays that will be used to store character * data in the stylesheet. * @param newData String data to be added to char arrays. * Pre-condition: newData.length() ≤ 21845 * @return int offset at which character data will be stored */ public int addCharacterData(String newData) { StringBuilder currData; if (m_characterData == null) { m_characterData = new ArrayList<>(); currData = new StringBuilder(); m_characterData.add(currData); } else { currData = m_characterData.get(m_characterData.size()-1); } // Character data could take up to three-times as much space when // written to the class file as UTF-8. The maximum size for a // constant is 65535/3. If we exceed that, // (We really should use some "bin packing".) if (newData.length() + currData.length() > 21845) { currData = new StringBuilder(); m_characterData.add(currData); } int newDataOffset = currData.length(); currData.append(newData); return newDataOffset; } }