diff options
Diffstat (limited to 'sca-java-1.x/tags/2.0-M1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java')
| -rw-r--r-- | sca-java-1.x/tags/2.0-M1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/2.0-M1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java b/sca-java-1.x/tags/2.0-M1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java new file mode 100644 index 0000000000..76cd8256e2 --- /dev/null +++ b/sca-java-1.x/tags/2.0-M1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java @@ -0,0 +1,262 @@ +/* + * 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.ArrayList; +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.ConfiguredOperation; +import org.apache.tuscany.sca.assembly.EndpointFactory; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.OperationsConfigurator; +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.InterfaceContractMapper; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.policy.util.PolicyComputationUtils; + +/** + * A composite builder that computes policy sets based on attached intents and policy sets. + * Useful if you want to build the model without making any runtime decisions such as + * reference/services matching + * + * @version $Rev$ $Date$ + */ +public class CompositePolicyBuilderImpl extends BaseBuilderImpl implements CompositeBuilder { + + public CompositePolicyBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, InterfaceContractMapper interfaceContractMapper) { + super(assemblyFactory, null, null, null, interfaceContractMapper); + } + + public String getID() { + return "org.apache.tuscany.sca.assembly.builder.CompositePolicyBuilder"; + } + + public void build(Composite composite, Definitions definitions, Monitor monitor) throws CompositeBuilderException { + computePolicies(composite, monitor); + } + + protected void computePolicies(Composite composite, Monitor monitor) { + + // compute policies recursively + for (Component component : composite.getComponents()) { + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + computePolicies((Composite)implementation, monitor); + } + } + + for (Component component : composite.getComponents()) { + + // Inherit default policies from the component to component-level contracts. + // This must be done BEFORE computing implementation policies because the + // implementation policy computer removes from the component any + // intents and policy sets that don't apply to implementations. + PolicyConfigurationUtil.inheritDefaultPolicies(component, component.getServices()); + PolicyConfigurationUtil.inheritDefaultPolicies(component, component.getReferences()); + + Implementation implemenation = component.getImplementation(); + try { + PolicyConfigurationUtil.computeImplementationIntentsAndPolicySets(implemenation, component); + } catch ( Exception e ) { + error(monitor, "PolicyRelatedException", implemenation, e); + //throw new RuntimeException(e); + } + + for (ComponentService componentService : component.getServices()) { + Service service = componentService.getService(); + if (service != null) { + // reconcile intents and policysets from componentType + PolicyComputationUtils.addInheritedIntents(service.getRequiredIntents(), componentService.getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(service.getPolicySets(), componentService.getPolicySets(), true); + + //reconcile intents and policysets for operations + boolean notFound; + List<ConfiguredOperation> opsFromComponentType = new ArrayList<ConfiguredOperation>(); + for ( ConfiguredOperation ctsConfOp : service.getConfiguredOperations() ) { + notFound = true; + for ( ConfiguredOperation csConfOp : componentService.getConfiguredOperations() ) { + if ( csConfOp.getName().equals(ctsConfOp.getName()) ) { + PolicyComputationUtils.addInheritedIntents(ctsConfOp.getRequiredIntents(), csConfOp.getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(ctsConfOp.getPolicySets(), csConfOp.getPolicySets(), true); + notFound = false; + } + } + + if ( notFound ) { + opsFromComponentType.add(ctsConfOp); + } + } + componentService.getConfiguredOperations().addAll(opsFromComponentType); + } + + try { + //compute the intents for operations under service element + PolicyConfigurationUtil.computeIntentsForOperations(componentService); + //compute intents and policyset for each binding + //addInheritedOpConfOnBindings(componentService); + PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(componentService); + PolicyConfigurationUtil.determineApplicableBindingPolicySets(componentService, null); + + } catch ( Exception e ) { + error(monitor, "PolicyRelatedException", componentService, e); + //throw new RuntimeException(e); + } + } + + for (ComponentReference componentReference : component.getReferences()) { + Reference reference = componentReference.getReference(); + if (reference != null) { + // reconcile intents and policysets + PolicyComputationUtils.addInheritedIntents(reference.getRequiredIntents(), componentReference.getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(reference.getPolicySets(), componentReference.getPolicySets(), true); + } + + + try { + //compute the intents for operations under reference element + PolicyConfigurationUtil.computeIntentsForOperations(componentReference); + //compute intents and policyset for each binding + //addInheritedOpConfOnBindings(componentReference); + PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(componentReference); + PolicyConfigurationUtil.determineApplicableBindingPolicySets(componentReference, null); + + + if ( componentReference.getCallback() != null ) { + PolicyComputationUtils.addInheritedIntents(componentReference.getRequiredIntents(), + componentReference.getCallback().getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(componentReference.getPolicySets(), + componentReference.getCallback().getPolicySets(), + false); + } + } catch ( Exception e ) { + error(monitor, "PolicyRelatedException", componentReference, e); + //throw new RuntimeException(e); + } + } + } + + PolicyConfigurationUtil.inheritDefaultPolicies(composite, composite.getServices()); + PolicyConfigurationUtil.inheritDefaultPolicies(composite, composite.getReferences()); + + //compute policies for composite service bindings + for (Service service : composite.getServices()) { + addPoliciesFromPromotedService((CompositeService)service); + try { + //compute the intents for operations under service element + PolicyConfigurationUtil.computeIntentsForOperations(service); + //add or merge service operations to the binding + //addInheritedOpConfOnBindings(service); + PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(service); + PolicyConfigurationUtil.determineApplicableBindingPolicySets(service, null); + } catch ( Exception e ) { + error(monitor, "PolicyRelatedException", service, e); + //throw new RuntimeException(e); + } + + } + + for (Reference reference : composite.getReferences()) { + CompositeReference compReference = (CompositeReference)reference; + addPoliciesFromPromotedReference(compReference); + try { + //compute the intents for operations under service element + PolicyConfigurationUtil.computeIntentsForOperations(reference); + //addInheritedOpConfOnBindings(reference); + + if (compReference.getCallback() != null) { + PolicyComputationUtils.addInheritedIntents(compReference.getRequiredIntents(), + compReference.getCallback().getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(compReference.getPolicySets(), + compReference.getCallback().getPolicySets(), + false); + } + + PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(reference); + PolicyConfigurationUtil.determineApplicableBindingPolicySets(reference, null); + } catch ( Exception e ) { + error(monitor, "PolicyRelatedException", reference, e); + //throw new RuntimeException(e); + } + } + } + + private void addPoliciesFromPromotedService(CompositeService compositeService) { + //inherit intents and policies from promoted service + PolicyComputationUtils.addInheritedIntents(compositeService.getPromotedService().getRequiredIntents(), + compositeService.getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(compositeService.getPromotedService().getPolicySets(), + compositeService.getPolicySets(), true); + addInheritedOperationConfigurations(compositeService.getPromotedService(), compositeService); + } + + private void addPoliciesFromPromotedReference(CompositeReference compositeReference) { + for ( Reference promotedReference : compositeReference.getPromotedReferences() ) { + PolicyComputationUtils.addInheritedIntents(promotedReference.getRequiredIntents(), + compositeReference.getRequiredIntents()); + + PolicyComputationUtils.addInheritedPolicySets(promotedReference.getPolicySets(), + compositeReference.getPolicySets(), true); + addInheritedOperationConfigurations(promotedReference, compositeReference); + } + } + + private void addInheritedOperationConfigurations( + OperationsConfigurator source, OperationsConfigurator target) { + boolean found = false; + + List<ConfiguredOperation> additionalOperations = new ArrayList<ConfiguredOperation>(); + for (ConfiguredOperation sourceConfOp : source + .getConfiguredOperations()) { + for (ConfiguredOperation targetConfOp : target + .getConfiguredOperations()) { + if (sourceConfOp.getName().equals(targetConfOp.getName())) { + PolicyComputationUtils.addInheritedIntents(sourceConfOp + .getRequiredIntents(), targetConfOp + .getRequiredIntents()); + PolicyComputationUtils.addInheritedPolicySets(sourceConfOp + .getPolicySets(), targetConfOp.getPolicySets(), + true); + found = true; + break; + } + } + + if (!found) { + additionalOperations.add(sourceConfOp); + } + } + + if (!additionalOperations.isEmpty()) { + target.getConfiguredOperations().addAll(additionalOperations); + } + } +} |