/*
* 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.assembly.xml;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.ComponentProperty;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.resolver.ResourceReference;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
/**
* A composite processor.
*
* @version $Rev: 591560 $ $Date: 2007-11-03 08:28:31 +0000 (Sat, 03 Nov 2007) $
*/
public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements URLArtifactProcessor<Composite> {
private XMLInputFactory inputFactory;
/**
* Construct a new composite processor
* @param assemblyFactory
* @param policyFactory
* @param staxProcessor
*/
public CompositeDocumentProcessor(StAXArtifactProcessor staxProcessor, XMLInputFactory inputFactory) {
super(null, null, staxProcessor);
this.inputFactory = inputFactory;
}
public Composite read(URL contributionURL, URI uri, URL url) throws ContributionReadException {
InputStream urlStream = null;
try {
// Create a stream reader
urlStream = url.openStream();
XMLStreamReader reader = inputFactory.createXMLStreamReader(url.toString(), urlStream);
reader.nextTag();
// Read the composite model
Composite composite = (Composite)extensionProcessor.read(reader);
if (composite != null) {
composite.setURI(uri.toString());
}
// For debugging purposes, write it back to XML
// if (composite != null) {
// try {
// ByteArrayOutputStream bos = new ByteArrayOutputStream();
// XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
// outputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE);
// extensionProcessor.write(composite, outputFactory.createXMLStreamWriter(bos));
// Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new ByteArrayInputStream(bos.toByteArray()));
// OutputFormat format = new OutputFormat();
// format.setIndenting(true);
// format.setIndent(2);
// XMLSerializer serializer = new XMLSerializer(System.out, format);
// serializer.serialize(document);
// } catch (Exception e) {
// e.printStackTrace();
// }
// }
return composite;
} catch (XMLStreamException e) {
throw new ContributionReadException(e);
} catch (IOException e) {
throw new ContributionReadException(e);
} finally {
try {
if (urlStream != null) {
urlStream.close();
urlStream = null;
}
} catch (IOException ioe) {
//ignore
}
}
}
public void resolve(Composite composite, ModelResolver resolver) throws ContributionResolveException {
extensionProcessor.resolve(composite, resolver);
for (Component component : composite.getComponents()) {
for (ComponentProperty prop : component.getProperties()) {
String file = prop.getFile();
if (file != null) {
ResourceReference resourceRef = new ResourceReference(file);
resourceRef = resolver.resolveModel(ResourceReference.class, resourceRef);
try {
if (!resourceRef.isUnresolved()) {
prop.setFile(resourceRef.getResource().toURI().toString());
}
} catch (URISyntaxException e) {
throw new IllegalArgumentException(e);
}
}
}
}
}
public String getArtifactType() {
return ".composite";
}
public Class<Composite> getModelType() {
return Composite.class;
}
}