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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta4-RC0/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointReferenceProcessor.java | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta4-RC0/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointReferenceProcessor.java b/sca-java-2.x/tags/2.0-Beta4-RC0/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointReferenceProcessor.java new file mode 100644 index 0000000000..eda90c9d44 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta4-RC0/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointReferenceProcessor.java @@ -0,0 +1,151 @@ +/* + * 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 javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.EndpointReference; +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.processor.StAXAttributeProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; + +/** + * + */ +public class EndpointReferenceProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<EndpointReference> { + private final static String ENDPOINT_REFERENCE = "endpointReference"; + private final static QName ENDPOINT_REFERENCE_QNAME = new QName(Constants.SCA11_TUSCANY_NS, ENDPOINT_REFERENCE); + + private ExtensionPointRegistry registry; + + public EndpointReferenceProcessor(ExtensionPointRegistry registry, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor) { + + super(modelFactories(registry), extensionProcessor); + this.registry = registry; + } + + /** + * Returns the model factory extension point to use. + * + * @param extensionPoints + * @return + */ + private static FactoryExtensionPoint modelFactories(ExtensionPointRegistry extensionPoints) { + return extensionPoints.getExtensionPoint(FactoryExtensionPoint.class); + } + + public QName getArtifactType() { + return ENDPOINT_REFERENCE_QNAME; + } + + public EndpointReference read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException { + EndpointReference endpointReference = assemblyFactory.createEndpointReference(); + if (reader.getEventType() == XMLStreamConstants.START_DOCUMENT) { + reader.nextTag(); + } + Object model = extensionProcessor.read(reader, context); + if (model instanceof Composite) { + Composite composite = (Composite)model; + Component component = composite.getComponents().get(0); + ComponentReference reference = component.getReferences().get(0); + Binding binding = reference.getBindings().get(0); + endpointReference.setComponent(component); + endpointReference.setReference(reference); + reference.getEndpointReferences().add(endpointReference); + endpointReference.setBinding(binding); + + // set up the EPR so that resolution will happen + // at wire creation time if needs be + Endpoint endpoint = assemblyFactory.createEndpoint(); + endpointReference.setTargetEndpoint(endpoint); + + if (reference.getTargets().size() > 0){ + // create a dummy endpoint with the URI set so that + // the endpoint registry will be consulted + endpoint.setUnresolved(true); + endpoint.setURI(reference.getTargets().get(0).getName()); + endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_NOT_FOUND); + endpointReference.setUnresolved(true); + } else { + endpoint.setUnresolved(false); + endpoint.setBinding(reference.getBindings().get(0)); + endpointReference.setStatus(EndpointReference.Status.RESOLVED_BINDING); + endpointReference.setUnresolved(false); + } + } + return endpointReference; + } + + public void write(EndpointReference model, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException { + extensionProcessor.write(wrap(model), writer, context); + } + + private Composite wrap(EndpointReference endpointReference) { + try { + Composite composite = assemblyFactory.createComposite(); + composite.setName(ENDPOINT_REFERENCE_QNAME); + composite.setLocal(false); + Component component = (Component)endpointReference.getComponent().clone(); + composite.getComponents().add(component); + component.getReferences().clear(); + component.getServices().clear(); + ComponentReference reference = (ComponentReference)endpointReference.getReference().clone(); + component.getReferences().add(reference); + reference.getBindings().clear(); + Binding binding = (Binding)endpointReference.getBinding().clone(); + reference.getBindings().add(binding); + //reference.setInterfaceContract(endpointReference.getInterfaceContract()); + if (endpointReference.getStatus() != EndpointReference.Status.RESOLVED_BINDING){ + ComponentService service = assemblyFactory.createComponentService(); + service.setName(endpointReference.getTargetEndpoint().getURI()); + reference.getTargets().clear(); + reference.getTargets().add(service); + } + return composite; + } catch (CloneNotSupportedException e) { + return null; + } + } + + public Class<EndpointReference> getModelType() { + return EndpointReference.class; + } + + public void resolve(EndpointReference model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { + } +} |