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Diffstat (limited to 'scripting/java/com/sun/star/script/framework/container/XMLParserFactory.java')
| -rw-r--r-- | scripting/java/com/sun/star/script/framework/container/XMLParserFactory.java | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/scripting/java/com/sun/star/script/framework/container/XMLParserFactory.java b/scripting/java/com/sun/star/script/framework/container/XMLParserFactory.java new file mode 100644 index 000000000000..52405fe0ea7c --- /dev/null +++ b/scripting/java/com/sun/star/script/framework/container/XMLParserFactory.java @@ -0,0 +1,180 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +package com.sun.star.script.framework.container; + +import java.io.InputStream; +import java.io.OutputStream; +import java.io.IOException; +import java.lang.reflect.Method; + +import javax.xml.parsers.*; +import org.w3c.dom.Document; +import org.xml.sax.InputSource; +import org.xml.sax.SAXException; +import org.xml.sax.SAXParseException; + +public class XMLParserFactory { + + private static XMLParser parser = null; + private static String officedtdurl = null; + + private XMLParserFactory() {} + + public static XMLParser getParser() { + if (parser == null) { + synchronized (XMLParserFactory.class) { + if (parser == null) + parser = new DefaultParser(); + } + } + return parser; + } + + public static void setParser(XMLParser p) { + parser = p; + } + + public static void setOfficeDTDURL(String url) { + officedtdurl = url; + } + + private static class DefaultParser implements XMLParser { + + private DocumentBuilderFactory factory; + + public DefaultParser() { + factory = DocumentBuilderFactory.newInstance(); + } + + public Document parse(InputStream inputStream) throws IOException { + Document result = null; + InputSource is = null; + + try { + DocumentBuilder builder = factory.newDocumentBuilder(); + + is = new InputSource(inputStream); + + if (officedtdurl != null) { + is.setSystemId(officedtdurl); + } + + result = builder.parse(is); + } + catch (SAXParseException spe) { + throw new IOException(spe.getMessage()); + } + catch (SAXException se) { + throw new IOException(se.getMessage()); + } + catch (ParserConfigurationException pce) { + throw new IOException(pce.getMessage()); + } + return result; + } + + public void write(Document doc, OutputStream out) throws IOException { + Class clazz = doc.getClass(); + String name = clazz.getName(); + + // depending on the class of the Document object use introspection + // to invoke the appropriate methods for writing the XML + // this code is based on the code used by the NetBeans + // class XMLUtilImpl in the openide module + try { + if (name.equals("com.sun.xml.tree.XmlDocument") || + name.equals("org.apache.crimson.tree.XmlDocument")) { + + // these DOM implementations are self writing + Method write; + write = clazz.getDeclaredMethod("write", + new Class[] {OutputStream.class}); + write.invoke(doc, new Object[] {out}); + } + else { + // try xerces serialize package using introspection + ClassLoader cl = this.getClass().getClassLoader(); + + Class serializerClass = null; + Class formatterClass = null; + + try { + serializerClass = Class.forName( + "org.apache.xml.serialize.XMLSerializer", true, cl); + formatterClass = Class.forName( + "org.apache.xml.serialize.OutputFormat", true, cl); + } catch (ClassNotFoundException cnfe) { + String prefix = "com.sun.org.apache.xml.internal."; + + serializerClass = Class.forName( + prefix + "serialize.XMLSerializer" , true, cl); + formatterClass = Class.forName( + prefix + "serialize.OutputFormat", true, cl); + } + + Object serializerObject = serializerClass.newInstance(); + Object formatterObject = formatterClass.newInstance(); + + // improve output readability using the OutputFormat class + Method method = null; + method = formatterClass.getMethod("setMethod", + new Class[] {String.class}); + method.invoke(formatterObject, new Object[] {"xml"}); + method = formatterClass.getMethod("setIndenting", + new Class[] {Boolean.TYPE}); + method.invoke(formatterObject, new Object[] {Boolean.TRUE}); + + // now set up an instance of XMLSerializer with our + // OutputStream and serialize our Document + method = serializerClass.getMethod("setOutputByteStream", + new Class[] {OutputStream.class}); + method.invoke(serializerObject, new Object[] {out}); + method = serializerClass.getMethod("setOutputFormat", + new Class[] {formatterClass}); + method.invoke(serializerObject, + new Object[] {formatterObject}); + + method = serializerClass.getMethod("asDOMSerializer", + new Class[0]); + Object impl = method.invoke(serializerObject, + new Object[0]); + + method = impl.getClass().getMethod("serialize", + new Class[] {Document.class}); + method.invoke(impl, new Object[] {doc}); + } + } catch (NoSuchMethodException ex) { + throw new IOException(ex.getMessage()); + } catch (ClassNotFoundException ex) { + throw new IOException(ex.getMessage()); + } catch (Exception ex) { + throw new IOException(ex.getMessage()); + } + } + } +} |