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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java')
| -rw-r--r-- | sca-java-1.x/branches/sca-java-1.6.2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java new file mode 100644 index 0000000000..c0702c87b3 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java @@ -0,0 +1,165 @@ +/* + * 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.builder.impl; + +import java.util.List; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +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.CompositeReference; +import org.apache.tuscany.sca.assembly.CompositeService; +import org.apache.tuscany.sca.assembly.EndpointFactory; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Multiplicity; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.SCABinding; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilder; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException; +import org.apache.tuscany.sca.monitor.Monitor; + +/** + * A composite builder that handles the creation of promoted composite services. + * + * @version $Rev$ $Date$ + */ +public class ComponentReferencePromotionWireBuilderImpl implements CompositeBuilder { + private AssemblyFactory assemblyFactory; + private EndpointFactory endpointFactory; + private Monitor monitor; + + public ComponentReferencePromotionWireBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, Monitor monitor) { + this.assemblyFactory = assemblyFactory; + this.endpointFactory = endpointFactory; + this.monitor = monitor; + } + + public void build(Composite composite) throws CompositeBuilderException { + wireCompositeReferences(composite); + } + + /** + * Wire composite references in nested composites. + * + * @param composite + * @param problems + */ + private void wireCompositeReferences(Composite composite) { + + // Process nested composites recursively + for (Component component : composite.getComponents()) { + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + wireCompositeReferences((Composite)implementation); + } + } + + // Process component references declared on components in this composite + for (Component component : composite.getComponents()) { + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + for (ComponentReference componentReference : component.getReferences()) { + Reference implReference = componentReference.getReference(); + if (implReference != null && implReference instanceof CompositeReference) { + + // If the component reference is wired, it is a promotion override + if (!componentReference.getEndpoints().isEmpty()) { + componentReference.setPromotionOverride(true); + } + + // If the component reference is a promotion override, override the + // configuration of the promoted reference + if (componentReference.isPromotionOverride()) { + CompositeReference compositeReference = (CompositeReference)implReference; + List<ComponentReference> promotedReferences = + ReferenceConfigurationUtil.getPromotedComponentReferences(compositeReference); + for (ComponentReference promotedReference : promotedReferences) { + ReferenceConfigurationUtil.reconcileReferenceBindings( + componentReference, promotedReference, assemblyFactory, endpointFactory, monitor); + if (componentReference.getInterfaceContract() != null && // can be null in unit tests + componentReference.getInterfaceContract().getCallbackInterface() != null) { + SCABinding scaCallbackBinding = promotedReference.getCallbackBinding(SCABinding.class); + if (promotedReference.getCallback() != null) { + promotedReference.getCallback().getBindings().clear(); + } else { + promotedReference.setCallback(assemblyFactory.createCallback()); + } + if (scaCallbackBinding != null) { + promotedReference.getCallback().getBindings().add(scaCallbackBinding); + } + if (componentReference.getCallback() != null) { + promotedReference.getCallback().getBindings().addAll(componentReference + .getCallback().getBindings()); + } + } + + // Wire the promoted reference to the actual non-composite component services + if (promotedReference.getMultiplicity() == Multiplicity.ONE_ONE) { + // promotedReference.getTargets().clear(); + } + for (ComponentService target : componentReference.getTargets()) { + if (target.getService() instanceof CompositeService) { + + // Wire to the actual component service + // promoted by a composite service + CompositeService compositeService = (CompositeService)target.getService(); + // Find the promoted component service + ComponentService componentService = + ServiceConfigurationUtil.getPromotedComponentService(compositeService); + if (componentService != null) { + promotedReference.getTargets().add(componentService); + } + } else { + + // Wire to a non-composite target service + promotedReference.getTargets().add(target); + } + } + } + } + } + } + } else { + for (ComponentReference componentReference : component.getReferences()) { + + // Wire the component reference to the actual + // non-composite component services + List<ComponentService> targets = componentReference.getTargets(); + for (int i = 0, n = targets.size(); i < n; i++) { + ComponentService target = targets.get(i); + if (target.getService() instanceof CompositeService) { + + // Wire to the actual component service + // promoted by a composite service + CompositeService compositeService = (CompositeService)target.getService(); + ComponentService componentService = compositeService.getPromotedService(); + if (componentService != null) { + targets.set(i, componentService); + } + } + } + } + } + } + } + +} |