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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.assembly.xml;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
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.AssemblyFactory;
import org.apache.tuscany.sca.assembly.ConfiguredOperation;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.policy.PolicyFactory;
/**
* Processor for dealing with 'operation' elements from composite definitions
*
* @version $Rev$ $Date$
* @tuscany.spi.extension.asclient
*/
public class ConfiguredOperationProcessor implements StAXArtifactProcessor<ConfiguredOperation>, Constants{
private AssemblyFactory assemblyFactory;
private PolicySubjectProcessor policyProcessor;
private PolicyFactory policyFactory;
public ConfiguredOperationProcessor(FactoryExtensionPoint modelFactories) {
this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
this.policyProcessor = new PolicySubjectProcessor(policyFactory);
}
public ConfiguredOperation read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
ConfiguredOperation configuredOp = assemblyFactory.createConfiguredOperation();
//Read an <operation>
configuredOp.setName(reader.getAttributeValue(null, NAME));
configuredOp.setContractName(reader.getAttributeValue(null, SERVICE));
configuredOp.setUnresolved(true);
// Read policies
policyProcessor.readPolicies(configuredOp, reader);
//Skip to end element
while (reader.hasNext()) {
if (reader.next() == END_ELEMENT && OPERATION_QNAME.equals(reader.getName())) {
break;
}
}
return configuredOp;
}
public void write(ConfiguredOperation configuredOperation, XMLStreamWriter writer, ProcessorContext context)
throws ContributionWriteException, XMLStreamException {
// Write an <operation>
writer.writeStartElement(Constants.SCA11_NS, OPERATION);
policyProcessor.writePolicyAttributes(configuredOperation, writer);
writer.writeAttribute(NAME, configuredOperation.getName());
if ( configuredOperation.getContractName() != null ) {
writer.writeAttribute(SERVICE, configuredOperation.getContractName());
}
writer.writeEndElement();
}
public void resolve(ConfiguredOperation configuredOperation, ModelResolver resolver, ProcessorContext context)
throws ContributionResolveException {
}
public QName getArtifactType() {
return OPERATION_QNAME;
}
public Class<ConfiguredOperation> getModelType() {
return ConfiguredOperation.class;
}
}
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