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* =========================================
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* LibXML : a free Java layouting library
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* =========================================
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* Project Info: http://reporting.pentaho.org/libxml/
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* (C) Copyright 2006-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
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* This library is free software; you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Foundation;
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* either version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License along with this
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* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
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* in the United States and other countries.]
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* $Id: MultiplexRootElementHandler.java 3518 2007-10-16 10:26:53Z tmorgner $
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* (C) Copyright 2006-2007, by Pentaho Corporation.
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package org.jfree.xmlns.parser;
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import java.io.IOException;
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import org.jfree.resourceloader.ResourceKey;
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import org.jfree.resourceloader.ResourceManager;
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import org.xml.sax.Attributes;
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import org.xml.sax.EntityResolver;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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* Creation-Date: 08.04.2006, 13:29:54
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* @author Thomas Morgner
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public class MultiplexRootElementHandler extends RootXmlReadHandler
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private static class RootEntityResolver implements EntityResolver
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private ParserEntityResolver entityResolver;
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private String publicId;
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private String systemId;
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private RootEntityResolver()
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entityResolver = ParserEntityResolver.getDefaultResolver();
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public InputSource resolveEntity(final String publicId, final String systemId)
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throws SAXException, IOException
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this.publicId = publicId;
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this.systemId = systemId;
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return entityResolver.resolveEntity(publicId, systemId);
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public String getPublicId()
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public String getSystemId()
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public ParserEntityResolver getEntityResolver()
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return entityResolver;
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private XmlFactoryModule[] rootHandlers;
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private RootEntityResolver entityResolver;
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private boolean xmlnsUrisNotAvailable;
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public MultiplexRootElementHandler
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(final ResourceManager manager,
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final ResourceKey source,
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final ResourceKey context,
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final XmlFactoryModule[] rootHandlers)
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super(manager, source, context, version);
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this.entityResolver = new RootEntityResolver();
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this.rootHandlers = (XmlFactoryModule[]) rootHandlers.clone();
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public boolean isXmlnsUrisNotAvailable()
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return xmlnsUrisNotAvailable;
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public void setXmlnsUrisNotAvailable(final boolean xmlnsUrisNotAvailable)
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this.xmlnsUrisNotAvailable = xmlnsUrisNotAvailable;
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public EntityResolver getEntityResolver()
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return entityResolver;
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public ParserEntityResolver getParserEntityResolver()
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return entityResolver.getEntityResolver();
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protected XmlFactoryModule[] getRootHandlers()
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* Starts processing an element.
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* @param originalUri the URI.
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* @param localName the local name.
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* @param qName the qName.
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* @param attributes the attributes.
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* @throws SAXException if there is a parsing problem.
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protected void interceptFirstStartElement(final String originalUri,
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final String localName,
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Attributes attributes)
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// build the document info and select the root handler that will
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// deal with the document content.
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final DefaultXmlDocumentInfo documentInfo = new DefaultXmlDocumentInfo();
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documentInfo.setPublicDTDId(entityResolver.getPublicId());
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documentInfo.setSystemDTDId(entityResolver.getSystemId());
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documentInfo.setRootElement(localName);
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documentInfo.setRootElementNameSpace(originalUri);
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final String nsuri = attributes.getValue("xmlns");
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documentInfo.setDefaultNameSpace(nsuri);
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documentInfo.setDefaultNameSpace("");
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// ok, now find the best root handler and start parsing ...
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XmlFactoryModule bestRootHandler = null;
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int bestRootHandlerWeight = -1;
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for (int i = 0; i < rootHandlers.length; i++)
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final XmlFactoryModule rootHandler = rootHandlers[i];
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final int weight = rootHandler.getDocumentSupport(documentInfo);
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if (weight > bestRootHandlerWeight)
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bestRootHandler = rootHandler;
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bestRootHandlerWeight = weight;
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if (bestRootHandlerWeight < 0 || bestRootHandler == null)
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throw new SAXException("No suitable root handler known for this document: " + documentInfo);
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final XmlReadHandler readHandler =
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bestRootHandler.createReadHandler(documentInfo);
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if (readHandler == null)
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throw new SAXException("Unable to create the root handler." + bestRootHandler);
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String defaultNamespace = documentInfo.getDefaultNameSpace();
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if (defaultNamespace == null || "".equals(defaultNamespace))
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// Now correct the namespace ..
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defaultNamespace = bestRootHandler.getDefaultNamespace(documentInfo);
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if (defaultNamespace != null && "".equals(defaultNamespace) == false)
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documentInfo.setRootElementNameSpace(defaultNamespace);
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pushDefaultNamespace(defaultNamespace);
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if ((originalUri == null || "".equals(originalUri)) &&
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defaultNamespace != null)
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uri = defaultNamespace;
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attributes = new FixNamespaceUriAttributes(uri, attributes);
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installRootHandler(readHandler, uri, localName, attributes);
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* Returns the object for this element or null, if this element does not
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* @return the object.
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public Object getObject()
added
removed
source/org/jfree/xmlns/parser/MultiplexRootElementHandler.java
