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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 echo.impl;
import java.util.ArrayList;
import java.util.List;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
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.contribution.service.ContributionWriteException;
import org.apache.tuscany.sca.policy.Intent;
import org.apache.tuscany.sca.policy.IntentAttachPointType;
import org.apache.tuscany.sca.policy.PolicyFactory;
import org.apache.tuscany.sca.policy.PolicySet;
import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
import org.apache.tuscany.sca.policy.impl.IntentAttachPointTypeFactoryImpl;
import echo.EchoBinding;
import echo.EchoBindingFactory;
/**
* A processor for <binding.echo> elements.
*/
public class EchoBindingProcessor implements StAXArtifactProcessor<EchoBinding> {
private QName BINDING_ECHO = new QName("http://echo", "binding.echo");
private final EchoBindingFactory factory;
private PolicyAttachPointProcessor policyProcessor;
public EchoBindingProcessor(EchoBindingFactory factory, PolicyFactory policyFactory) {
this.factory = factory;
this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
}
public QName getArtifactType() {
return BINDING_ECHO;
}
public Class<EchoBinding> getModelType() {
return EchoBinding.class;
}
public EchoBinding read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
EchoBinding echoBinding = factory.createEchoBinding();
IntentAttachPointType bindingType = new IntentAttachPointTypeFactoryImpl().createBindingType();
bindingType.setName(getArtifactType());
bindingType.setUnresolved(true);
((PolicySetAttachPoint)echoBinding).setType(bindingType);
String name = reader.getAttributeValue(null, "name");
if (name != null) {
echoBinding.setName(name);
}
String uri = reader.getAttributeValue(null, "uri");
if (uri != null) {
echoBinding.setURI(uri);
}
policyProcessor.readPolicies(echoBinding, reader);
return echoBinding;
}
public void write(EchoBinding echoBinding, XMLStreamWriter writer) throws ContributionWriteException,
XMLStreamException {
writer.writeStartElement(BINDING_ECHO.getNamespaceURI(), BINDING_ECHO.getLocalPart());
policyProcessor.writePolicyAttributes(echoBinding, writer);
if (echoBinding.getName() != null) {
writer.writeAttribute("name", echoBinding.getName());
}
if (echoBinding.getURI() != null) {
writer.writeAttribute("uri", echoBinding.getURI());
}
writer.writeEndElement();
}
public void resolve(EchoBinding echoBinding, ModelResolver resolver) throws ContributionResolveException {
PolicySetAttachPoint policySetAttachPoint = (PolicySetAttachPoint)echoBinding;
List<Intent> requiredIntents = new ArrayList<Intent>();
Intent resolvedIntent = null;
for (Intent intent : policySetAttachPoint.getRequiredIntents()) {
resolvedIntent = resolver.resolveModel(Intent.class, intent);
requiredIntents.add(resolvedIntent);
}
policySetAttachPoint.getRequiredIntents().clear();
policySetAttachPoint.getRequiredIntents().addAll(requiredIntents);
List<PolicySet> resolvedPolicySets = new ArrayList<PolicySet>();
PolicySet resolvedPolicySet = null;
for (PolicySet policySet : policySetAttachPoint.getPolicySets()) {
resolvedPolicySet = resolver.resolveModel(PolicySet.class, policySet);
resolvedPolicySets.add(resolvedPolicySet);
}
policySetAttachPoint.getPolicySets().clear();
policySetAttachPoint.getPolicySets().addAll(resolvedPolicySets);
}
}
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