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Diffstat (limited to 'sandbox/ant/sca/branches/tb3/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceEndpointReferenceBuilderImpl.java')
| -rw-r--r-- | sandbox/ant/sca/branches/tb3/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceEndpointReferenceBuilderImpl.java | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/sandbox/ant/sca/branches/tb3/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceEndpointReferenceBuilderImpl.java b/sandbox/ant/sca/branches/tb3/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceEndpointReferenceBuilderImpl.java new file mode 100644 index 0000000000..5de60c114d --- /dev/null +++ b/sandbox/ant/sca/branches/tb3/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceEndpointReferenceBuilderImpl.java @@ -0,0 +1,418 @@ +/* + * 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.net.URI; +import java.util.ArrayList; +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.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.CompositeReference; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.Endpoint2; +import org.apache.tuscany.sca.assembly.EndpointFactory; +import org.apache.tuscany.sca.assembly.EndpointReference2; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Multiplicity; +import org.apache.tuscany.sca.assembly.OptimizableBinding; +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.assembly.builder.DefaultEndpointBuilder; +import org.apache.tuscany.sca.definitions.Definitions; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.policy.PolicySubject; + +/** + * A composite builder that creates endpoint reference models. + * + * @version $Rev$ $Date$ + */ +public class CompositeReferenceEndpointReferenceBuilderImpl extends BaseBuilderImpl implements CompositeBuilder { + + + public CompositeReferenceEndpointReferenceBuilderImpl(AssemblyFactory assemblyFactory, InterfaceContractMapper interfaceContractMapper) { + super(assemblyFactory, null, null, null, interfaceContractMapper); + } + + public String getID() { + return "org.apache.tuscany.sca.assembly.builder.ComponentReferenceEndpointReferenceBuilder"; + } + + /** + * Create endpoint references for all component references. + * + * @param composite + */ + public void build(Composite composite, Definitions definitions, Monitor monitor) throws CompositeBuilderException + { + // process top level composite references + // TODO - I don't think OASIS allows for these + // + //processCompositeReferences(composite); + + // process component services + processComponentReferences(composite, monitor); + } + + private void processCompositeReferences(Composite composite) { + // TODO do we need this for OASIS? + } + + private void processComponentReferences(Composite composite, Monitor monitor) { + + // index all of the components in the composite + Map<String, Component> components = new HashMap<String, Component>(); + indexComponents(composite, components); + + // index all of the services in the composite + Map<String, ComponentService> componentServices = new HashMap<String, ComponentService>(); + indexServices(composite, componentServices); + + // create endpoint references for each component's references + for (Component component : composite.getComponents()) { + // recurse for composite implementations + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + processComponentReferences((Composite)implementation, monitor); + } + + // create endpoint references to represent the component reference + for (ComponentReference reference : component.getReferences()) { + createReferenceEndpointReferences(composite, component, reference, components, componentServices, monitor); + } + } + } + + private void createReferenceEndpointReferences(Composite composite, + Component component, + ComponentReference reference, + Map<String, Component> components, + Map<String, ComponentService> componentServices, + Monitor monitor) + { + if (reference.getAutowire() == Boolean.TRUE && + reference.getTargets().isEmpty()) { + + // Find suitable targets in the current composite for an + // autowired reference + Multiplicity multiplicity = reference.getMultiplicity(); + for (Component targetComponent : composite.getComponents()) { + + // prevent autowire connecting to self + boolean skipSelf = false; + for (ComponentReference targetComponentReference : targetComponent.getReferences()) { + if (reference == targetComponentReference) { + skipSelf = true; + } + } + + if (!skipSelf) { + for (ComponentService targetComponentService : targetComponent.getServices()) { + if (reference.getInterfaceContract() == null || + interfaceContractMapper.isCompatible(reference.getInterfaceContract(), + targetComponentService.getInterfaceContract())) { + // create endpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setTargetName(targetComponentService.getName()); + endpointRef.setUnresolved(false); + + // create dummy endpoint. This will be replaced when policies + // are matched and bindings are configured later + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setComponent(targetComponent); + endpoint.setService(targetComponentService); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + reference.getEndpointReferences().add(endpointRef); + + if (multiplicity == Multiplicity.ZERO_ONE || + multiplicity == Multiplicity.ONE_ONE) { + break; + } + } + } + } + } + + if (multiplicity == Multiplicity.ONE_N || + multiplicity == Multiplicity.ONE_ONE) { + if (reference.getEndpointReferences().size() == 0) { + warning(monitor, + "NoComponentReferenceTarget", + reference, + reference.getName()); + } + } + + } else if (!reference.getTargets().isEmpty()) { + + // Check that the component reference does not mix the use of + // endpoint references specified via the target attribute with + // the presence of binding elements + if (reference.getBindings().size() > 0) { + warning(monitor, "ReferenceEndPointMixWithTarget", + composite, reference.getName()); + } + + // Resolve targets specified on the component reference + for (ComponentService target : reference.getTargets()) { + + String targetName = target.getName(); + ComponentService targetComponentService = componentServices.get(targetName); + + Component targetComponent; + int s = targetName.indexOf('/'); + if (s == -1) { + targetComponent = components.get(targetName); + } else { + targetComponent = components.get(targetName.substring(0, s)); + } + + if (targetComponentService != null) { + + // Check that the target component service provides + // a superset of the component reference interface + if (reference.getInterfaceContract() == null || + interfaceContractMapper.isCompatible(reference.getInterfaceContract(), + targetComponentService.getInterfaceContract())) { + + // create endpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setTargetName(targetComponentService.getName()); + endpointRef.setUnresolved(false); + + // create dummy endpoint. This will be replaced when policies + // are matched and bindings are configured later + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setComponent(targetComponent); + endpoint.setService(targetComponentService); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + reference.getEndpointReferences().add(endpointRef); + } else { + warning(monitor, + "ReferenceIncompatibleInterface", + composite, + composite.getName().toString(), + reference.getName(), + targetName); + } + } else { + // add an unresolved endpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setTargetName(targetName); + endpointRef.setUnresolved(true); + + // create an unresolved endpoint to go with it + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + warning(monitor, + "ComponentReferenceTargetNotFound", + composite, + composite.getName().toString(), + targetName); + } + } + } else if ((reference.getReference() != null) + && (!reference.getReference().getTargets().isEmpty())) { + + // Resolve targets from the corresponding reference in the + // componentType + for (ComponentService target : reference.getReference().getTargets()) { + + String targetName = target.getName(); + ComponentService targetComponentService = componentServices.get(targetName); + + Component targetComponent; + int s = targetName.indexOf('/'); + if (s == -1) { + targetComponent = components.get(targetName); + } else { + targetComponent = components.get(targetName.substring(0, s)); + } + + if (targetComponentService != null) { + + // Check that the target component service provides + // a superset of the component reference interface + if (reference.getInterfaceContract() == null || + interfaceContractMapper.isCompatible(reference.getInterfaceContract(), + targetComponentService.getInterfaceContract())) { + + // create endpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setTargetName(targetComponentService.getName()); + endpointRef.setUnresolved(false); + + // create dummy endpoint. This will be replaced when policies + // are matched and bindings are configured later + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setComponent(targetComponent); + endpoint.setService(targetComponentService); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + reference.getEndpointReferences().add(endpointRef); + } else { + warning(monitor, + "ReferenceIncompatibleInterface", + composite, + composite.getName().toString(), + reference.getName(), + targetName); + } + } else { + // add an unresolved endpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setTargetName(targetName); + endpointRef.setUnresolved(true); + + // create an unresolved endpoint to go with it + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + warning(monitor, + "ComponentReferenceTargetNotFound", + composite, + composite.getName().toString(), + targetName); + } + } + } + + + // if no endpoints have found so far the bindings become targets. + if (reference.getEndpointReferences().isEmpty()) { + for (Binding binding : reference.getBindings()) { + + String uri = binding.getURI(); + + // user hasn't put a uri on the binding so it's not a target + // name + if (uri == null) { + continue; + } + + // user might have put a local target name in the uri + // see if it refers to a target we know about + // - if it does the reference binding will be matched with a + // service binding + // - if it doesn't it is assumed to be an external reference + Component targetComponent = null; + ComponentService targetComponentService = null; + + + if (uri.startsWith("/")) { + uri = uri.substring(1); + } + + // Resolve the target component and service + targetComponentService = componentServices.get(uri); + int s = uri.indexOf('/'); + if (s == -1) { + targetComponent = components.get(uri); + } else { + targetComponent = components.get(uri.substring(0, s)); + } + + // if the binding URI matches a component in the + // composite then configure an endpoint reference with this component as + // the target. If not then the binding URI will be assumed to reference an + // external service + if (targetComponentService != null) { + + // Check that the target component service provides + // a superset of the component reference interface + if (reference.getInterfaceContract() == null || + interfaceContractMapper.isCompatible(reference.getInterfaceContract(), + targetComponentService.getInterfaceContract())) { + // create enpoint reference + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setBinding(binding); + endpointRef.setTargetName(targetComponentService.getName()); + endpointRef.setUnresolved(false); + + // create dummy endpoint. This will be replaced when policies + // are matched and bindings are configured later + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setComponent(targetComponent); + endpoint.setService(targetComponentService); + endpoint.setUnresolved(true); + endpointRef.setTargetEndpoint(endpoint); + + reference.getEndpointReferences().add(endpointRef); + } else { + warning(monitor, + "ReferenceIncompatibleInterface", + composite, + composite.getName().toString(), + reference.getName(), + uri); + } + } else { + // create endpoint reference for manually configured bindings + EndpointReference2 endpointRef = assemblyFactory.createEndpointReference(); + endpointRef.setComponent(component); + endpointRef.setReference(reference); + endpointRef.setBinding(binding); + endpointRef.setTargetName(null); + endpointRef.setTargetEndpoint(null); + endpointRef.setUnresolved(false); + + // create a resolved endpoint to signify that this + // reference is pointing at some unwired endpoint + Endpoint2 endpoint = assemblyFactory.createEndpoint(); + endpoint.setUnresolved(false); + endpointRef.setTargetEndpoint(endpoint); + + reference.getEndpointReferences().add(endpointRef); + } + } + } + } +} |