1 /* 2 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package test.astro; 24 25 import static jaxp.library.JAXPTestUtilities.filenameToURL; 26 import static test.astro.AstroConstants.DECXSL; 27 import static test.astro.AstroConstants.RAURIXSL; 28 import static test.astro.AstroConstants.STYPEXSL; 29 import static test.astro.AstroConstants.TOPTEMPLINCXSL; 30 31 import java.io.IOException; 32 33 import javax.xml.parsers.ParserConfigurationException; 34 import javax.xml.parsers.SAXParserFactory; 35 import javax.xml.transform.Source; 36 import javax.xml.transform.TransformerConfigurationException; 37 import javax.xml.transform.TransformerException; 38 import javax.xml.transform.TransformerFactory; 39 import javax.xml.transform.URIResolver; 40 import javax.xml.transform.sax.SAXTransformerFactory; 41 import javax.xml.transform.sax.TemplatesHandler; 42 import javax.xml.transform.sax.TransformerHandler; 43 import javax.xml.transform.stream.StreamSource; 44 45 import org.xml.sax.InputSource; 46 import org.xml.sax.SAXException; 47 import org.xml.sax.XMLReader; 48 49 /* 50 * Implementation of the filter factory interface that utilizes 51 * a TemplatesHandler and creates Templates from the stylesheets. 52 * The Templates objects are then used to create a TransformerHandler 53 * a.k.a Filter which is returned to the caller. 54 * This factory uses a Uri resolver which is registered with the 55 * Transformer factory. 56 * 57 */ 58 public class TemplatesFilterFactoryImpl extends AbstractFilterFactory { 59 private final URIResolver uriResolver = new TemplatesFilterFactoryURIResolver(); 60 61 @Override 62 protected String getRAXsl() { 63 return RAURIXSL; 64 } 65 66 @Override 67 protected String getDECXsl() { 68 return DECXSL; 69 } 70 71 @Override 72 protected String getRADECXsl() { 73 return DECXSL; 74 } 75 76 @Override 77 protected String getStellarXsl() { 78 return STYPEXSL; 79 } 80 81 @Override 82 protected TransformerHandler getTransformerHandler(String xslFileName) throws SAXException, ParserConfigurationException, 83 TransformerConfigurationException, IOException { 84 SAXTransformerFactory factory = (SAXTransformerFactory) TransformerFactory.newInstance(); 85 factory.setURIResolver(uriResolver); 86 87 TemplatesHandler templatesHandler = factory.newTemplatesHandler(); 88 89 SAXParserFactory pFactory = SAXParserFactory.newInstance(); 90 pFactory.setNamespaceAware(true); 91 92 XMLReader xmlreader = pFactory.newSAXParser().getXMLReader(); 93 94 // create the stylesheet input source 95 InputSource xslSrc = new InputSource(xslFileName); 96 97 xslSrc.setSystemId(filenameToURL(xslFileName)); 98 // hook up the templates handler as the xsl content handler 99 xmlreader.setContentHandler(templatesHandler); 100 // call parse on the xsl input source 101 102 xmlreader.parse(xslSrc); 103 104 // extract the Templates object created from the xsl input source 105 return factory.newTransformerHandler(templatesHandler.getTemplates()); 106 } 107 108 /* 109 * Uri resolver used to resolve stylesheet used by the Templates filter 110 * factory. 111 */ 112 private static class TemplatesFilterFactoryURIResolver implements URIResolver { 113 public Source resolve(String href, String base) throws TransformerException { 114 if ("http://astro.com/stylesheets/topleveltemplate".equals(href)) { 115 StreamSource ss = new StreamSource(TOPTEMPLINCXSL); 116 ss.setSystemId(filenameToURL(TOPTEMPLINCXSL)); 117 return ss; 118 } else { 119 return null; 120 } 121 } 122 } 123 }