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/*
* 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.tuscany.sca.node.manager.impl;
import java.io.ByteArrayOutputStream;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.ws.rs.WebApplicationException;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLOutputFactory;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.extensibility.NodeActivator;
import org.apache.tuscany.sca.node.extensibility.NodeExtension;
import org.apache.tuscany.sca.node.manager.DomainCompositeResource;
public class DomainCompositeResourceImpl implements NodeActivator, DomainCompositeResource {
private static Map<String, NodeExtension> nodeMap = new ConcurrentHashMap<String,NodeExtension>();
public void nodeStarted(Node node) {
NodeExtension nodeExtension = (NodeExtension) node;
nodeMap.put(nodeExtension.getDomainURI(), nodeExtension);
}
public void nodeStopped(Node node) {
NodeExtension nodeExtension = (NodeExtension) node;
nodeMap.remove(nodeExtension.getDomainURI());
}
public String getDomainComposite(String domainURI) {
if( ! nodeMap.containsKey(domainURI)) {
throw new WebApplicationException(404);
}
NodeExtension node = nodeMap.get(domainURI);
Composite composite = node.getDomainComposite();
//set name, as it's empty by default
composite.setName(new QName("", "Domain"));
ExtensionPointRegistry registry = node.getExtensionPointRegistry();
StAXArtifactProcessorExtensionPoint xmlProcessors =
registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
StAXArtifactProcessor<Composite> compositeProcessor =
xmlProcessors.getProcessor(Composite.class);
return writeComposite(composite, registry, compositeProcessor);
}
private String writeComposite(Composite composite, ExtensionPointRegistry registry, StAXArtifactProcessor<Composite> compositeProcessor){
ByteArrayOutputStream bos = new ByteArrayOutputStream();
XMLOutputFactory outputFactory =
registry.getExtensionPoint(FactoryExtensionPoint.class)
.getFactory(XMLOutputFactory.class);
try {
compositeProcessor.write(composite, outputFactory.createXMLStreamWriter(bos), new ProcessorContext(registry));
} catch(Exception ex) {
return ex.toString();
}
String result = bos.toString();
// write out and nested composites
for (Component component : composite.getComponents()) {
if (component.getImplementation() instanceof Composite) {
result += "\n<!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX -->\n" +
writeComposite((Composite)component.getImplementation(), registry,
compositeProcessor);
}
}
return result;
}
}
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