diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC3a/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC3a/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M3-RC3a/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java b/tags/java/sca/2.0-M3-RC3a/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java new file mode 100644 index 0000000000..e2f17f5efd --- /dev/null +++ b/tags/java/sca/2.0-M3-RC3a/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java @@ -0,0 +1,236 @@ +/* + * 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.HashMap; +import java.util.List; +import java.util.Map; + +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.Implementation; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilder; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException; +import org.apache.tuscany.sca.definitions.Definitions; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.monitor.Monitor; + +/** + * A composite builder that makes the connections between composite services and references + * and the services and references that they promote + * + * @version $Rev$ $Date$ + */ +public class CompositePromotionBuilderImpl extends BaseBuilderImpl implements CompositeBuilder { + + public CompositePromotionBuilderImpl(AssemblyFactory assemblyFactory, InterfaceContractMapper interfaceContractMapper) { + super(assemblyFactory, null, null, null, interfaceContractMapper); + } + + public String getID() { + return "org.apache.tuscany.sca.assembly.builder.CompositePromotionBuilder"; + } + + public void build(Composite composite, Definitions definitions, Monitor monitor) throws CompositeBuilderException { + connectCompositeReferencesAndServices(composite, monitor); + } + + /** + * Connect composite references and services to the reference and services that they promote. + * + * @param composite + * @param componentServices + * @param problems + */ + protected void connectCompositeReferencesAndServices(Composite composite, Monitor monitor){ + // Wire nested composites recursively + for (Component component : composite.getComponents()) { + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + connectCompositeReferencesAndServices((Composite)implementation, monitor); + } + } + + // Index components, services and references + Map<String, Component> components = new HashMap<String, Component>(); + Map<String, ComponentService> componentServices = new HashMap<String, ComponentService>(); + Map<String, ComponentReference> componentReferences = new HashMap<String, ComponentReference>(); + indexComponentsServicesAndReferences(composite, components, componentServices, componentReferences); + + // Connect composite services and references to the component + // services and references that they promote + connectCompositeServices(composite, components, componentServices, monitor); + connectCompositeReferences(composite, components, componentReferences, monitor); + } + + /** + * Connect composite services to the component services that they promote. + * + * @param composite + * @param componentServices + * @param problems + */ + private void connectCompositeServices(Composite composite, + Map<String, Component> components, + Map<String, ComponentService> componentServices, + Monitor monitor) { + + // Propagate interfaces from inner composite components' services to + // their component services + for (Component component : composite.getComponents()) { + if (component.getImplementation() instanceof Composite) { + for (ComponentService componentService : component.getServices()) { + Service service = componentService.getService(); + if (service != null) { + if (componentService.getInterfaceContract() == null) { + componentService.setInterfaceContract(service.getInterfaceContract()); + } + } + } + } + } + + // Connect composite services to the component services that they promote + for (Service service : composite.getServices()) { + CompositeService compositeService = (CompositeService)service; + ComponentService componentService = compositeService.getPromotedService(); + if (componentService != null && componentService.isUnresolved()) { + + String promotedComponentName = compositeService.getPromotedComponent().getName(); + String promotedServiceName; + if (componentService.getName() != null) { + if( compositeService.isCallback() ) { + // For callbacks the name already has the form "componentName"/"servicename" + promotedServiceName = componentService.getName(); + } else { + promotedServiceName = promotedComponentName + '/' + componentService.getName(); + } + } else { + promotedServiceName = promotedComponentName; + } + ComponentService promotedService = componentServices.get(promotedServiceName); + if (promotedService != null) { + + // Point to the resolved component + Component promotedComponent = components.get(promotedComponentName); + compositeService.setPromotedComponent(promotedComponent); + + // Point to the resolved component service + compositeService.setPromotedService(promotedService); + + // Use the interface contract from the component service if + // none is specified on the composite service + InterfaceContract compositeServiceInterfaceContract = compositeService.getInterfaceContract(); + InterfaceContract promotedServiceInterfaceContract = promotedService.getInterfaceContract(); + if (compositeServiceInterfaceContract == null) { + compositeService.setInterfaceContract(promotedServiceInterfaceContract); + } else if (promotedServiceInterfaceContract != null) { + // Check the compositeServiceInterfaceContract and promotedServiceInterfaceContract + boolean isCompatible = interfaceContractMapper.isCompatible(compositeServiceInterfaceContract, promotedServiceInterfaceContract); + if(!isCompatible){ + warning(monitor, "ServiceInterfaceNotSubSet", compositeService, promotedServiceName); + } + } + + } else { + // MJE 15/05/2005 - Priority raised from "warning" to "error" to fix TUSCANY-3034 + error(monitor, "PromotedServiceNotFound", composite, composite.getName().toString(), promotedServiceName); + } + } + } + + } + + /** + * Resolves promoted references. + * + * @param composite + * @param componentReferences + * @param problems + */ + private void connectCompositeReferences(Composite composite, + Map<String, Component> components, + Map<String, ComponentReference> componentReferences, Monitor monitor) { + + // Propagate interfaces from inner composite components' references to + // their component references + for (Component component : composite.getComponents()) { + if (component.getImplementation() instanceof Composite) { + for (ComponentReference componentReference : component.getReferences()) { + Reference reference = componentReference.getReference(); + if (reference != null) { + if (componentReference.getInterfaceContract() == null) { + componentReference.setInterfaceContract(reference.getInterfaceContract()); + } + } + } + } + } + + // Connect composite references to the component references that they promote + for (Reference reference : composite.getReferences()) { + CompositeReference compositeReference = (CompositeReference)reference; + List<ComponentReference> promotedReferences = compositeReference.getPromotedReferences(); + for (int i = 0, n = promotedReferences.size(); i < n; i++) { + ComponentReference componentReference = promotedReferences.get(i); + if (componentReference.isUnresolved()) { + String componentReferenceName = componentReference.getName(); + componentReference = componentReferences.get(componentReferenceName); + if (componentReference != null) { + // Set the promoted component + Component promotedComponent = compositeReference.getPromotedComponents().get(i); + promotedComponent = components.get(promotedComponent.getName()); + compositeReference.getPromotedComponents().set(i, promotedComponent); + + componentReference.setPromoted( true ); + + // Point to the resolved component reference + promotedReferences.set(i, componentReference); + + // Use the interface contract from the component reference if none + // is specified on the composite reference + InterfaceContract compositeReferenceInterfaceContract = compositeReference.getInterfaceContract(); + InterfaceContract componentReferenceInterfaceContract = componentReference.getInterfaceContract(); + if (compositeReferenceInterfaceContract == null) { + compositeReference.setInterfaceContract(componentReferenceInterfaceContract); + } else if (componentReferenceInterfaceContract != null) { + // Check that the componentInterfaceContract is a subset of the compositeInterfaceContract + boolean isCompatible = interfaceContractMapper.isCompatible( componentReferenceInterfaceContract, compositeReferenceInterfaceContract); + if (!isCompatible) { + warning(monitor, "ReferenceInterfaceNotSubSet", compositeReference, componentReferenceName); + } + } + } else { + warning(monitor, "PromotedReferenceNotFound", composite, composite.getName().toString(), componentReferenceName); + } + } + } + } + } +} |