/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.geronimo.system.plugin;
import java.io.OutputStream;
import java.io.Writer;
import java.io.InputStream;
import java.io.Reader;
import java.io.IOException;
import java.io.StringWriter;
import java.net.MalformedURLException;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Unmarshaller;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.SAXParser;
import javax.xml.transform.sax.SAXSource;
import javax.xml.namespace.QName;
import org.xml.sax.helpers.XMLFilterImpl;
import org.xml.sax.XMLReader;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.InputSource;
import org.apache.geronimo.system.plugin.model.PluginType;
import org.apache.geronimo.system.plugin.model.ObjectFactory;
import org.apache.geronimo.system.plugin.model.PluginListType;
import org.apache.geronimo.system.plugin.model.PluginArtifactType;
import org.apache.geronimo.system.plugin.model.AttributeType;
import org.apache.geronimo.system.plugin.model.AttributesType;
import org.apache.geronimo.system.plugin.model.ModuleType;
import org.apache.geronimo.system.plugin.model.GbeanType;
/**
* @version $Rev: 686088 $ $Date: 2008-08-15 07:35:27 +0800 (Fri, 15 Aug 2008) $
*/
public class PluginXmlUtil {
public static final XMLInputFactory XMLINPUT_FACTORY = XMLInputFactory.newInstance();
public static final JAXBContext PLUGIN_CONTEXT;
public static final JAXBContext PLUGIN_LIST_CONTEXT;
public static final JAXBContext PLUGIN_ARTIFACT_CONTEXT;
private final static QName _PluginArtifact_QNAME = new QName("http://geronimo.apache.org/xml/ns/plugins-1.3", "plugin-artifact");
static {
try {
PLUGIN_CONTEXT = JAXBContext.newInstance(PluginType.class);
PLUGIN_LIST_CONTEXT = JAXBContext.newInstance(PluginListType.class);
PLUGIN_ARTIFACT_CONTEXT = JAXBContext.newInstance(PluginArtifactType.class);
} catch (JAXBException e) {
throw new RuntimeException("Could not create jaxb contexts for plugin types");
}
}
public static void writePluginMetadata(PluginType metadata, OutputStream out) throws XMLStreamException, JAXBException {
Marshaller marshaller = PLUGIN_CONTEXT.createMarshaller();
marshaller.setProperty("jaxb.formatted.output", true);
JAXBElement<PluginType> element = new ObjectFactory().createGeronimoPlugin(metadata);
marshaller.marshal(element, out);
}
public static void writePluginArtifact(PluginArtifactType value, Writer out) throws XMLStreamException, JAXBException {
Marshaller marshaller = PLUGIN_ARTIFACT_CONTEXT.createMarshaller();
marshaller.setProperty("jaxb.formatted.output", true);
JAXBElement<PluginArtifactType> element = new JAXBElement<PluginArtifactType>(_PluginArtifact_QNAME, PluginArtifactType.class, null, value);
marshaller.marshal(element, out);
}
public static void writePluginList(PluginListType metadata, Writer out) throws XMLStreamException, JAXBException {
Marshaller marshaller = PLUGIN_LIST_CONTEXT.createMarshaller();
marshaller.setProperty("jaxb.formatted.output", true);
JAXBElement<PluginListType> element = new ObjectFactory().createGeronimoPluginList(metadata);
marshaller.marshal(element, out);
}
/**
* Read a set of plugin metadata from a DOM document.
*/
public static PluginType loadPluginMetadata(InputStream in) throws SAXException, MalformedURLException, JAXBException, XMLStreamException {
XMLStreamReader xmlStream = XMLINPUT_FACTORY.createXMLStreamReader(in);
Unmarshaller unmarshaller = PLUGIN_CONTEXT.createUnmarshaller();
JAXBElement<PluginType> element = unmarshaller.unmarshal(xmlStream, PluginType.class);
PluginType plugin = element.getValue();
return plugin;
}
public static PluginArtifactType loadPluginArtifactMetadata(Reader in) throws SAXException, MalformedURLException, JAXBException, XMLStreamException, ParserConfigurationException {
InputSource inputSource = new InputSource(in);
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setNamespaceAware(true);
factory.setValidating(false);
SAXParser parser = factory.newSAXParser();
Unmarshaller unmarshaller = PLUGIN_ARTIFACT_CONTEXT.createUnmarshaller();
// unmarshaller.setEventHandler(new ValidationEventHandler(){
// public boolean handleEvent(ValidationEvent validationEvent) {
// System.out.println(validationEvent);
// return false;
// }
// });
NamespaceFilter xmlFilter = new NamespaceFilter(parser.getXMLReader());
xmlFilter.setContentHandler(unmarshaller.getUnmarshallerHandler());
SAXSource source = new SAXSource(xmlFilter, inputSource);
// XMLStreamReader xmlStream = XMLINPUT_FACTORY.createXMLStreamReader(in);
JAXBElement<PluginArtifactType> element = unmarshaller.unmarshal(source, PluginArtifactType.class);
PluginArtifactType plugin = element.getValue();
return plugin;
}
/**
* Loads the list of all available plugins from the specified stream
* (representing geronimo-plugins.xml at the specified repository).
*/
public static PluginListType loadPluginList(InputStream in) throws ParserConfigurationException, IOException, SAXException, JAXBException, XMLStreamException {
Unmarshaller unmarshaller = PLUGIN_LIST_CONTEXT.createUnmarshaller();
XMLStreamReader xmlStream = XMLINPUT_FACTORY.createXMLStreamReader(in);
JAXBElement<PluginListType> element = unmarshaller.unmarshal(xmlStream, PluginListType.class);
PluginListType pluginList = element.getValue();
return pluginList;
}
public static class NamespaceFilter extends XMLFilterImpl {
private static String PLUGIN_NS = "http://geronimo.apache.org/xml/ns/plugins-1.3";
private static String GBEAN_NS = "http://geronimo.apache.org/xml/ns/attributes-1.2";
private static String ENVIRONMENT_NS = "http://geronimo.apache.org/xml/ns/deployment-1.2";
private String namespace;
public NamespaceFilter(XMLReader xmlReader) {
super(xmlReader);
}
@Override
public void startElement(String uri, String localName, String qname, Attributes atts) throws SAXException {
if ("plugin-artifact".equals(localName)) {
namespace = PLUGIN_NS;
} else if ("gbean".equals(localName)) {
namespace = GBEAN_NS;
} else if ("environment".equals(localName)) {
namespace = ENVIRONMENT_NS;
}
super.startElement(namespace, localName, qname, atts);
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
super.endElement(namespace, localName, qName);
if ("plugin-artifact".equals(localName)) {
namespace = null;
} else if ("gbean".equals(localName)) {
namespace = PLUGIN_NS;
} else if ("environment".equals(localName)) {
namespace = GBEAN_NS;
}
}
}
}