| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2001, Sun |
| * Microsystems., http://www.sun.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * @author Morten Jorgensen |
| * |
| */ |
| |
| package org.apache.xalan.xsltc.trax; |
| |
| import javax.xml.transform.Result; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.sax.TransformerHandler; |
| |
| import org.apache.xalan.xsltc.StripFilter; |
| import org.apache.xalan.xsltc.compiler.util.ErrorMsg; |
| import org.apache.xalan.xsltc.dom.DOMWSFilter; |
| import org.apache.xalan.xsltc.dom.SAXImpl; |
| import org.apache.xalan.xsltc.dom.XSLTCDTMManager; |
| import org.apache.xalan.xsltc.runtime.AbstractTranslet; |
| import org.apache.xml.dtm.DTMWSFilter; |
| import org.apache.xml.serializer.SerializationHandler; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.DTDHandler; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.ext.DeclHandler; |
| import org.xml.sax.ext.LexicalHandler; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| /** |
| * Implementation of a JAXP1.1 TransformerHandler |
| */ |
| public class TransformerHandlerImpl implements TransformerHandler, DeclHandler { |
| |
| private TransformerImpl _transformer; |
| private AbstractTranslet _translet = null; |
| private String _systemId; |
| private SAXImpl _dom = null; |
| private ContentHandler _handler = null; |
| private LexicalHandler _lexHandler = null; |
| private DTDHandler _dtdHandler = null; |
| private DeclHandler _declHandler = null; |
| private Result _result = null; |
| private Locator _locator = null; |
| |
| private boolean _done = false; // Set in endDocument() |
| |
| /** |
| * A flag indicating whether this transformer handler implements the |
| * identity transform. |
| */ |
| private boolean _isIdentity = false; |
| |
| /** |
| * Cosntructor - pass in reference to a TransformerImpl object |
| */ |
| public TransformerHandlerImpl(TransformerImpl transformer) { |
| // Save the reference to the transformer |
| _transformer = transformer; |
| |
| if (transformer.isIdentity()) { |
| // Set initial handler to the empty handler |
| _handler = new DefaultHandler(); |
| _isIdentity = true; |
| } |
| else { |
| // Get a reference to the translet wrapped inside the transformer |
| _translet = _transformer.getTranslet(); |
| } |
| } |
| |
| /** |
| * Implements javax.xml.transform.sax.TransformerHandler.getSystemId() |
| * Get the base ID (URI or system ID) from where relative URLs will be |
| * resolved. |
| * @return The systemID that was set with setSystemId(String id) |
| */ |
| public String getSystemId() { |
| return _systemId; |
| } |
| |
| /** |
| * Implements javax.xml.transform.sax.TransformerHandler.setSystemId() |
| * Get the base ID (URI or system ID) from where relative URLs will be |
| * resolved. |
| * @param id Base URI for this stylesheet |
| */ |
| public void setSystemId(String id) { |
| _systemId = id; |
| } |
| |
| /** |
| * Implements javax.xml.transform.sax.TransformerHandler.getTransformer() |
| * Get the Transformer associated with this handler, which is needed in |
| * order to set parameters and output properties. |
| * @return The Transformer object |
| */ |
| public Transformer getTransformer() { |
| return _transformer; |
| } |
| |
| /** |
| * Implements javax.xml.transform.sax.TransformerHandler.setResult() |
| * Enables the user of the TransformerHandler to set the to set the Result |
| * for the transformation. |
| * @param result A Result instance, should not be null |
| * @throws IllegalArgumentException if result is invalid for some reason |
| */ |
| public void setResult(Result result) throws IllegalArgumentException { |
| _result = result; |
| |
| if (null == result) { |
| ErrorMsg err = new ErrorMsg(ErrorMsg.ER_RESULT_NULL); |
| throw new IllegalArgumentException(err.toString()); //"result should not be null"); |
| } |
| |
| if (_isIdentity) { |
| try { |
| // Connect this object with output system directly |
| SerializationHandler outputHandler = |
| _transformer.getOutputHandler(result); |
| _transformer.transferOutputProperties(outputHandler); |
| |
| _handler = outputHandler; |
| _lexHandler = outputHandler; |
| } |
| catch (TransformerException e) { |
| _result = null; |
| } |
| } |
| else if (_done) { |
| // Run the transformation now, if not already done |
| try { |
| _transformer.setDOM(_dom); |
| _transformer.transform(null, _result); |
| } |
| catch (TransformerException e) { |
| // What the hell are we supposed to do with this??? |
| throw new IllegalArgumentException(e.getMessage()); |
| } |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.characters() |
| * Receive notification of character data. |
| */ |
| public void characters(char[] ch, int start, int length) |
| throws SAXException |
| { |
| _handler.characters(ch, start, length); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.startDocument() |
| * Receive notification of the beginning of a document. |
| */ |
| public void startDocument() throws SAXException { |
| // Make sure setResult() was called before the first SAX event |
| if (_result == null) { |
| ErrorMsg err = new ErrorMsg(ErrorMsg.JAXP_SET_RESULT_ERR); |
| throw new SAXException(err.toString()); |
| } |
| |
| if (!_isIdentity) { |
| boolean hasIdCall = (_translet != null) ? _translet.hasIdCall() : false; |
| XSLTCDTMManager dtmManager = null; |
| |
| // Create an internal DOM (not W3C) and get SAX2 input handler |
| try { |
| dtmManager = |
| (XSLTCDTMManager)_transformer.getTransformerFactory() |
| .getDTMManagerClass() |
| .newInstance(); |
| } catch (Exception e) { |
| throw new SAXException(e); |
| } |
| |
| DTMWSFilter wsFilter; |
| if (_translet != null && _translet instanceof StripFilter) { |
| wsFilter = new DOMWSFilter(_translet); |
| } else { |
| wsFilter = null; |
| } |
| |
| // Construct the DTM using the SAX events that come through |
| _dom = (SAXImpl)dtmManager.getDTM(null, false, wsFilter, true, |
| false, hasIdCall); |
| |
| _handler = _dom.getBuilder(); |
| _lexHandler = (LexicalHandler) _handler; |
| _dtdHandler = (DTDHandler) _handler; |
| _declHandler = (DeclHandler) _handler; |
| |
| |
| // Set document URI |
| _dom.setDocumentURI(_systemId); |
| |
| if (_locator != null) { |
| _handler.setDocumentLocator(_locator); |
| } |
| } |
| |
| // Proxy call |
| _handler.startDocument(); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.endDocument() |
| * Receive notification of the end of a document. |
| */ |
| public void endDocument() throws SAXException { |
| // Signal to the DOMBuilder that the document is complete |
| _handler.endDocument(); |
| |
| if (!_isIdentity) { |
| // Run the transformation now if we have a reference to a Result object |
| if (_result != null) { |
| try { |
| _transformer.setDOM(_dom); |
| _transformer.transform(null, _result); |
| } |
| catch (TransformerException e) { |
| throw new SAXException(e); |
| } |
| } |
| // Signal that the internal DOM is built (see 'setResult()'). |
| _done = true; |
| |
| // Set this DOM as the transformer's DOM |
| _transformer.setDOM(_dom); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.startElement() |
| * Receive notification of the beginning of an element. |
| */ |
| public void startElement(String uri, String localName, |
| String qname, Attributes attributes) |
| throws SAXException |
| { |
| _handler.startElement(uri, localName, qname, attributes); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.endElement() |
| * Receive notification of the end of an element. |
| */ |
| public void endElement(String namespaceURI, String localName, String qname) |
| throws SAXException |
| { |
| _handler.endElement(namespaceURI, localName, qname); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.processingInstruction() |
| * Receive notification of a processing instruction. |
| */ |
| public void processingInstruction(String target, String data) |
| throws SAXException |
| { |
| _handler.processingInstruction(target, data); |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.startCDATA() |
| */ |
| public void startCDATA() throws SAXException { |
| if (_lexHandler != null) { |
| _lexHandler.startCDATA(); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.endCDATA() |
| */ |
| public void endCDATA() throws SAXException { |
| if (_lexHandler != null) { |
| _lexHandler.endCDATA(); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.comment() |
| * Receieve notification of a comment |
| */ |
| public void comment(char[] ch, int start, int length) |
| throws SAXException |
| { |
| if (_lexHandler != null) { |
| _lexHandler.comment(ch, start, length); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.ignorableWhitespace() |
| * Receive notification of ignorable whitespace in element |
| * content. Similar to characters(char[], int, int). |
| */ |
| public void ignorableWhitespace(char[] ch, int start, int length) |
| throws SAXException |
| { |
| _handler.ignorableWhitespace(ch, start, length); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.setDocumentLocator() |
| * Receive an object for locating the origin of SAX document events. |
| */ |
| public void setDocumentLocator(Locator locator) { |
| _locator = locator; |
| |
| if (_handler != null) { |
| _handler.setDocumentLocator(locator); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.skippedEntity() |
| * Receive notification of a skipped entity. |
| */ |
| public void skippedEntity(String name) throws SAXException { |
| _handler.skippedEntity(name); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.startPrefixMapping() |
| * Begin the scope of a prefix-URI Namespace mapping. |
| */ |
| public void startPrefixMapping(String prefix, String uri) |
| throws SAXException { |
| _handler.startPrefixMapping(prefix, uri); |
| } |
| |
| /** |
| * Implements org.xml.sax.ContentHandler.endPrefixMapping() |
| * End the scope of a prefix-URI Namespace mapping. |
| */ |
| public void endPrefixMapping(String prefix) throws SAXException { |
| _handler.endPrefixMapping(prefix); |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.startDTD() |
| */ |
| public void startDTD(String name, String publicId, String systemId) |
| throws SAXException |
| { |
| if (_lexHandler != null) { |
| _lexHandler.startDTD(name, publicId, systemId); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.endDTD() |
| */ |
| public void endDTD() throws SAXException { |
| if (_lexHandler != null) { |
| _lexHandler.endDTD(); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.startEntity() |
| */ |
| public void startEntity(String name) throws SAXException { |
| if (_lexHandler != null) { |
| _lexHandler.startEntity(name); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.LexicalHandler.endEntity() |
| */ |
| public void endEntity(String name) throws SAXException { |
| if (_lexHandler != null) { |
| _lexHandler.endEntity(name); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.DTDHandler.unparsedEntityDecl() |
| */ |
| public void unparsedEntityDecl(String name, String publicId, |
| String systemId, String notationName) throws SAXException |
| { |
| if (_dtdHandler != null) { |
| _dtdHandler.unparsedEntityDecl(name, publicId, systemId, |
| notationName); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.DTDHandler.notationDecl() |
| */ |
| public void notationDecl(String name, String publicId, String systemId) |
| throws SAXException |
| { |
| if (_dtdHandler != null) { |
| _dtdHandler.notationDecl(name, publicId, systemId); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.DeclHandler.attributeDecl() |
| */ |
| public void attributeDecl(String eName, String aName, String type, |
| String valueDefault, String value) throws SAXException |
| { |
| if (_declHandler != null) { |
| _declHandler.attributeDecl(eName, aName, type, valueDefault, value); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.DeclHandler.elementDecl() |
| */ |
| public void elementDecl(String name, String model) |
| throws SAXException |
| { |
| if (_declHandler != null) { |
| _declHandler.elementDecl(name, model); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.DeclHandler.externalEntityDecl() |
| */ |
| public void externalEntityDecl(String name, String publicId, String systemId) |
| throws SAXException |
| { |
| if (_declHandler != null) { |
| _declHandler.externalEntityDecl(name, publicId, systemId); |
| } |
| } |
| |
| /** |
| * Implements org.xml.sax.ext.DeclHandler.externalEntityDecl() |
| */ |
| public void internalEntityDecl(String name, String value) |
| throws SAXException |
| { |
| if (_declHandler != null) { |
| _declHandler.internalEntityDecl(name, value); |
| } |
| } |
| } |