diff options
Diffstat (limited to 'sca-java-1.x/tags/1.2/samples/binding-echo-extension/src/main/java/echo/impl/EchoBindingProcessor.java')
-rw-r--r-- | sca-java-1.x/tags/1.2/samples/binding-echo-extension/src/main/java/echo/impl/EchoBindingProcessor.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.2/samples/binding-echo-extension/src/main/java/echo/impl/EchoBindingProcessor.java b/sca-java-1.x/tags/1.2/samples/binding-echo-extension/src/main/java/echo/impl/EchoBindingProcessor.java new file mode 100644 index 0000000000..7eaa7e4fb5 --- /dev/null +++ b/sca-java-1.x/tags/1.2/samples/binding-echo-extension/src/main/java/echo/impl/EchoBindingProcessor.java @@ -0,0 +1,128 @@ +/* + * 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.PolicyFactory; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.policy.PolicySetAttachPoint; +import org.apache.tuscany.sca.policy.IntentAttachPointType; +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 { + + policyProcessor.writePolicyPrefixes(echoBinding, writer); + 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); + } +} |