From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001 From: lresende Date: Mon, 30 Sep 2013 06:59:11 +0000 Subject: 2.0.1 RC1 release tag git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/assembly/xml/EndpointProcessor.java | 185 +++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointProcessor.java (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointProcessor.java') diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointProcessor.java new file mode 100644 index 0000000000..6bfc775117 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/EndpointProcessor.java @@ -0,0 +1,185 @@ +/* + * 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.Callback; +import org.apache.tuscany.sca.assembly.Component; +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; +import org.apache.tuscany.sca.policy.PolicySet; + +/** + * + */ +public class EndpointProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor { + private final static String ENDPOINT = "endpoint"; + private final static QName ENDPOINT_QNAME = new QName(Constants.SCA11_TUSCANY_NS, ENDPOINT); + private final static String CALLBACK_ENDPOINT = "callbackEndpoint"; + private final static QName CALLBACK_ENDPOINT_QNAME = new QName(Constants.SCA11_TUSCANY_NS, CALLBACK_ENDPOINT); + + private ExtensionPointRegistry registry; + + public EndpointProcessor(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_QNAME; + } + + public Endpoint read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException { + Endpoint endpoint = assemblyFactory.createEndpoint(); + if (reader.getEventType() == XMLStreamConstants.START_DOCUMENT) { + reader.nextTag(); + } + if (reader.getEventType() == XMLStreamConstants.START_ELEMENT && ENDPOINT_QNAME.equals(reader.getName())) { + // Skip the "endpoint" element wrapper + reader.nextTag(); + } + Object model = extensionProcessor.read(reader, context); + if (model instanceof Composite) { + Composite composite = (Composite)model; + Component component = composite.getComponents().get(0); + ComponentService service = component.getServices().get(0); + Binding binding = service.getBindings().isEmpty() ? null : service.getBindings().get(0); + endpoint.setComponent(component); + endpoint.setService(service); + endpoint.setBinding(binding); + + // We use the name of the composite to indicate if this is a callback endpoint + // saves passing other extension attributes + if (composite.getName().equals(CALLBACK_ENDPOINT_QNAME)){ + service.setForCallback(true); + } + + // retrieve the stash of intents and policy sets from the component + endpoint.getRequiredIntents().addAll(component.getRequiredIntents()); + endpoint.getPolicySets().addAll(component.getPolicySets()); + } + return endpoint; + } + + public void write(Endpoint model, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException { + // writeStart(writer, ENDPOINT_QNAME); + extensionProcessor.write(wrap(model), writer, context); + // writeEnd(writer); + } + + private Composite wrap(Endpoint endpoint) { + try { + Composite composite = assemblyFactory.createComposite(); + // We use the name of the composite (which just wraps the single endpoint + // to indicate whether this endpoint represents a callback or not + if (endpoint.getService() != null && + endpoint.getService().isForCallback()){ + composite.setName(CALLBACK_ENDPOINT_QNAME); + } else { + composite.setName(ENDPOINT_QNAME); + } + composite.setLocal(false); + if (endpoint.getComponent() != null) { + Component component = (Component)endpoint.getComponent().clone(); + component.setImplementation(null); + composite.getComponents().add(component); + component.getReferences().clear(); + component.getServices().clear(); + + // stash endpoint intents and policy sets on the component so that they are all + // in one place + component.getRequiredIntents().clear(); + component.getRequiredIntents().addAll(endpoint.getRequiredIntents()); + component.getPolicySets().clear(); + component.getPolicySets().addAll(endpoint.getPolicySets()); + + if (endpoint.getService() != null) { + ComponentService service = (ComponentService)endpoint.getService().clone(); + component.getServices().add(service); + service.getBindings().clear(); + service.setInterfaceContract(endpoint.getComponentServiceInterfaceContract()); + if (endpoint.getBinding() != null) { + Binding binding = (Binding)endpoint.getBinding().clone(); + service.getBindings().add(binding); + } + // put both manually configured AND automatically generated callback bindings + // into the wrapping model so that we can pass callback configuarion via + // the registry + if (service.getCallbackReference() != null) { + Callback callback = service.getCallback(); + if(callback == null){ + callback = assemblyFactory.createCallback(); + } + for (EndpointReference epr : service.getCallbackReference().getEndpointReferences()){ + callback.getBindings().add(epr.getBinding()); + } + service.setCallback(callback); + } + } + } + return composite; + } catch (CloneNotSupportedException e) { + return null; + } + } + + public Class getModelType() { + return Endpoint.class; + } + + public void resolve(Endpoint model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { + // the only thing we'll resolve here is the policy model as the endpoint + // matching algorithm needs to look inside the policy model + + for (PolicySet policySet : model.getPolicySets()){ + extensionProcessor.resolve(policySet, resolver, context); + } + } +} -- cgit v1.2.3