| /* |
| * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package test.astro; |
| |
| import static jaxp.library.JAXPTestUtilities.filenameToURL; |
| import static jaxp.library.JAXPTestUtilities.USER_DIR; |
| import static org.w3c.dom.ls.DOMImplementationLS.MODE_SYNCHRONOUS; |
| import static org.w3c.dom.traversal.NodeFilter.SHOW_ELEMENT; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| |
| import org.w3c.dom.DOMConfiguration; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.ls.DOMImplementationLS; |
| import org.w3c.dom.ls.LSInput; |
| import org.w3c.dom.ls.LSParser; |
| import org.w3c.dom.ls.LSParserFilter; |
| import org.w3c.dom.ls.LSSerializer; |
| import org.w3c.dom.ls.LSSerializerFilter; |
| import org.xml.sax.InputSource; |
| |
| /* |
| * A specialized implementation of an Input Source factory that utilizes |
| * DOM Level 3 implementations to build a Document (DOM) from the |
| * astro input file (XML) and then will serialize the DOM. The serialized DOM |
| * of the astro input file is then used to create the sax InputSource |
| * and set it's system id. It is then returned to the caller. |
| * |
| */ |
| public class DOML3InputSourceFactoryImpl implements InputSourceFactory { |
| public InputSource newInputSource(String filename) throws Exception { |
| // Create DOMImplementationLS, and DOM L3 LSParser |
| DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance(); |
| DocumentBuilder bldr = fact.newDocumentBuilder(); |
| DOMImplementationLS impl = (DOMImplementationLS) bldr.getDOMImplementation(); |
| LSParser domparser = impl.createLSParser(MODE_SYNCHRONOUS, null); |
| domparser.setFilter(new MyDOMBuilderFilter()); |
| |
| // Parse the xml document to create the DOM Document using |
| // the DOM L3 LSParser and a LSInput (formerly LSInputSource) |
| Document doc = null; |
| LSInput src = impl.createLSInput(); |
| // register the input file with the input source... |
| String systemId = filenameToURL(filename); |
| src.setSystemId(systemId); |
| try (Reader reader = new FileReader(filename)) { |
| src.setCharacterStream(reader); |
| src.setEncoding("UTF-8"); |
| doc = domparser.parse(src); |
| } |
| |
| // Use DOM L3 LSSerializer (previously called a DOMWriter) |
| // to serialize the xml doc DOM to a file stream. |
| String tmpCatalog = Files.createTempFile(Paths.get(USER_DIR), "catalog.xml", null).toString(); |
| |
| LSSerializer domserializer = impl.createLSSerializer(); |
| domserializer.setFilter(new MyDOMWriterFilter()); |
| domserializer.getNewLine(); |
| DOMConfiguration config = domserializer.getDomConfig(); |
| config.setParameter("xml-declaration", Boolean.TRUE); |
| String result = domserializer.writeToString(doc); |
| try (FileWriter os = new FileWriter(tmpCatalog, false)) { |
| os.write(result); |
| os.flush(); |
| } |
| |
| // Return the Input Source created from the Serialized DOM L3 Document. |
| InputSource catsrc = new InputSource(new InputStreamReader(new ByteArrayInputStream(Files.readAllBytes(Paths.get(tmpCatalog))))); |
| catsrc.setSystemId(systemId); |
| return catsrc; |
| } |
| |
| /* |
| * Implementation of a DOM L3 DOM Builder Filter. The filter is capable of |
| * examining nodes as they are available during the parse. This |
| * implementation both rejects (filters) and modifies particular nodes |
| * during the parse of the document. As such, the document in memory will |
| * become a subset of the document on the stream in accordance with the DOM |
| * Level 3 Load and Save Specification, v1.0, sect. 1.3 Load Interfaces. |
| */ |
| private static class MyDOMBuilderFilter implements LSParserFilter { |
| |
| /* |
| * Filter the DOM. Define element(s) and their children that should be |
| * efficiently skipped thereby filtering them out of the stream. |
| */ |
| @Override |
| public short startElement(Element e) { |
| return "_test01".equals(e.getTagName()) ? FILTER_REJECT : FILTER_ACCEPT; |
| } |
| |
| /* |
| * Modify the DOM 'in situ'. Find a particular Node and change the Node |
| * value of its child, allow other nodes to pass through unchanged. |
| */ |
| @Override |
| public short acceptNode(Node n) { |
| String localname = n.getLocalName(); |
| if (localname.equals("_test-04")) { |
| Node child = n.getFirstChild(); |
| String text = child.getNodeValue(); |
| if (text.equals("T%e!s#t$")) { |
| child.setNodeValue("T%E!S#T$"); |
| } |
| } |
| return FILTER_ACCEPT; |
| } |
| |
| /* |
| * Tells the DOMBuilder what types of nodes to show to the filter. |
| */ |
| @Override |
| public int getWhatToShow() { |
| return SHOW_ELEMENT; |
| } |
| } |
| |
| /* |
| * Implementation of a DOM Serializer Filter (previously called a DOM Writer |
| * Filter) which is a specialization of the NodeFilter interface. |
| */ |
| private static class MyDOMWriterFilter implements LSSerializerFilter { |
| public MyDOMWriterFilter() { |
| } |
| |
| /* |
| * Must implement method from NodeFilter interface |
| */ |
| @Override |
| public short acceptNode(Node node) { |
| return FILTER_ACCEPT; |
| } |
| |
| /* |
| * Tells the DOMBuilder what types of nodes to show to the filter. |
| */ |
| @Override |
| public int getWhatToShow() { |
| return SHOW_ELEMENT; |
| } |
| } |
| } |