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/*
* 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);
}
}
}
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