/*
* 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.topology.xml;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
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.service.ContributionReadException;
import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
import org.apache.tuscany.sca.topology.Runtime;
/**
* A composite processor.
*
* @version $Rev: 548761 $ $Date: 2007-06-19 16:16:57 +0100 (Tue, 19 Jun 2007) $
*/
public class TopologyDocumentProcessor extends BaseArtifactProcessor implements URLArtifactProcessor<Runtime> {
private XMLInputFactory inputFactory;
/**
* Construct a new composite processor
* @param assemblyFactory
* @param policyFactory
* @param staxProcessor
*/
public TopologyDocumentProcessor(StAXArtifactProcessor staxProcessor, XMLInputFactory inputFactory) {
super(null, null, staxProcessor);
this.inputFactory = inputFactory;
}
public Runtime read(URL contributionURL, URI uri, URL url) throws ContributionReadException {
InputStream urlStream = null;
try {
urlStream = url.openStream();
XMLStreamReader reader = inputFactory.createXMLStreamReader(urlStream);
reader.nextTag();
Runtime node = (Runtime)extensionProcessor.read(reader);
return node;
} 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(Runtime node, ModelResolver resolver) throws ContributionResolveException {
extensionProcessor.resolve(node, resolver);
}
public String getArtifactType() {
return ".topology";
}
public Class<Runtime> getModelType() {
return Runtime.class;
}
}