| /* |
| * 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: TrAXFilter.java,v 1.2.4.1 2005/09/06 12:23:19 pvedula Exp $ |
| */ |
| |
| |
| package com.sun.org.apache.xalan.internal.xsltc.trax; |
| |
| import java.io.IOException; |
| |
| import javax.xml.XMLConstants; |
| import javax.xml.parsers.FactoryConfigurationError; |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| import javax.xml.transform.ErrorListener; |
| import javax.xml.transform.Templates; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerConfigurationException; |
| import javax.xml.transform.sax.SAXResult; |
| |
| import com.sun.org.apache.xml.internal.utils.XMLReaderManager; |
| |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.XMLReader; |
| import org.xml.sax.helpers.XMLFilterImpl; |
| import org.xml.sax.helpers.XMLReaderFactory; |
| |
| /** |
| * skeleton extension of XMLFilterImpl for now. |
| * @author Santiago Pericas-Geertsen |
| * @author G. Todd Miller |
| */ |
| public class TrAXFilter extends XMLFilterImpl { |
| private Templates _templates; |
| private TransformerImpl _transformer; |
| private TransformerHandlerImpl _transformerHandler; |
| private boolean _useServicesMechanism = true; |
| |
| public TrAXFilter(Templates templates) throws |
| TransformerConfigurationException |
| { |
| _templates = templates; |
| _transformer = (TransformerImpl) templates.newTransformer(); |
| _transformerHandler = new TransformerHandlerImpl(_transformer); |
| _useServicesMechanism = _transformer.useServicesMechnism(); |
| } |
| |
| public Transformer getTransformer() { |
| return _transformer; |
| } |
| |
| private void createParent() throws SAXException { |
| XMLReader parent = null; |
| try { |
| SAXParserFactory pfactory = SAXParserFactory.newInstance(); |
| pfactory.setNamespaceAware(true); |
| |
| if (_transformer.isSecureProcessing()) { |
| try { |
| pfactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true); |
| } |
| catch (SAXException e) {} |
| } |
| |
| SAXParser saxparser = pfactory.newSAXParser(); |
| parent = saxparser.getXMLReader(); |
| } |
| catch (ParserConfigurationException e) { |
| throw new SAXException(e); |
| } |
| catch (FactoryConfigurationError e) { |
| throw new SAXException(e.toString()); |
| } |
| |
| if (parent == null) { |
| parent = XMLReaderFactory.createXMLReader(); |
| } |
| |
| // make this XMLReader the parent of this filter |
| setParent(parent); |
| } |
| |
| public void parse (InputSource input) throws SAXException, IOException |
| { |
| XMLReader managedReader = null; |
| |
| try { |
| if (getParent() == null) { |
| try { |
| managedReader = XMLReaderManager.getInstance(_useServicesMechanism) |
| .getXMLReader(); |
| setParent(managedReader); |
| } catch (SAXException e) { |
| throw new SAXException(e.toString()); |
| } |
| } |
| |
| // call parse on the parent |
| getParent().parse(input); |
| } finally { |
| if (managedReader != null) { |
| XMLReaderManager.getInstance(_useServicesMechanism).releaseXMLReader(managedReader); |
| } |
| } |
| } |
| |
| public void parse (String systemId) throws SAXException, IOException |
| { |
| parse(new InputSource(systemId)); |
| } |
| |
| public void setContentHandler (ContentHandler handler) |
| { |
| _transformerHandler.setResult(new SAXResult(handler)); |
| if (getParent() == null) { |
| try { |
| createParent(); |
| } |
| catch (SAXException e) { |
| return; |
| } |
| } |
| getParent().setContentHandler(_transformerHandler); |
| } |
| |
| public void setErrorListener (ErrorListener handler) { } |
| } |