diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.2.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java new file mode 100644 index 0000000000..ebf8a707b0 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java @@ -0,0 +1,124 @@ +/* + * 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.implementation.java.invocation; + +import java.util.ArrayList; +import java.util.List; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ConfiguredOperation; +import org.apache.tuscany.sca.assembly.OperationsConfigurator; +import org.apache.tuscany.sca.implementation.java.JavaImplementation; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Phase; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.policy.PolicySetAttachPoint; +import org.apache.tuscany.sca.policy.util.PolicyHandler; +import org.apache.tuscany.sca.policy.util.PolicyHandlerUtils; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeWire; +import org.apache.tuscany.sca.runtime.RuntimeWireProcessor; + +/** + * Processor to inject policy handling interceptor wheneve PolicySets are specified in a Java Implementation + */ +public class JavaPolicyHandlingRuntimeWireProcessor implements RuntimeWireProcessor { + private final static Logger logger = Logger.getLogger(JavaPolicyHandlingRuntimeWireProcessor.class.getName()); + + public JavaPolicyHandlingRuntimeWireProcessor() { + super(); + } + + public void process(RuntimeWire wire) { + /*Contract contract = wire.getSource().getContract(); + if (!(contract instanceof RuntimeComponentReference)) { + return; + }*/ + + RuntimeComponent component = wire.getTarget().getComponent(); + if (component != null && component.getImplementation() instanceof JavaImplementation) { + JavaImplementation javaImpl = (JavaImplementation)component.getImplementation(); + if (javaImpl instanceof PolicySetAttachPoint) { + PolicyHandler policyHandler = null; + List<PolicyHandler> implPolicyHandlers = new ArrayList<PolicyHandler>(); + PolicySetAttachPoint policiedImpl = (PolicySetAttachPoint)javaImpl; + + try { + //for ( PolicySet policySet : policiedImpl.getPolicySets() ) { + for (PolicySet policySet : component.getPolicySets()) { + policyHandler = + PolicyHandlerUtils.findPolicyHandler(policySet, javaImpl.getPolicyHandlerClassNames()); + if (policyHandler != null) { + policyHandler.setUp(javaImpl); + implPolicyHandlers.add(policyHandler); + } else { + //FIXME: to be removed after the PolicyHandler story has crystalized.. + //maybe replace with exception then... + logger.warning("No PolicyHandler registered for PolicySet - " + policySet.getName()); + } + } + + List<PolicyHandler> applicablePolicyHandlers = null; + for (InvocationChain chain : wire.getInvocationChains()) { + applicablePolicyHandlers = new ArrayList<PolicyHandler>(); + if (javaImpl instanceof OperationsConfigurator) { + String operationName = chain.getTargetOperation().getName(); + OperationsConfigurator opConfigurator = (OperationsConfigurator)component; + for (ConfiguredOperation confOp : opConfigurator.getConfiguredOperations()) { + if (confOp.getName().equals(operationName)) { + for (PolicySet policySet : confOp.getPolicySets()) { + policyHandler = + PolicyHandlerUtils.findPolicyHandler(policySet, javaImpl + .getPolicyHandlerClassNames()); + if (policyHandler != null) { + policyHandler.setUp(javaImpl); + applicablePolicyHandlers.add(policyHandler); + } else { + logger.warning("No PolicyHandler registered for " + policySet); + } + } + break; + } + } + + //if no policies have been specified at the operation level then simply + //apply whatever is specified for the implementation level + if (applicablePolicyHandlers.isEmpty()) { + applicablePolicyHandlers = implPolicyHandlers; + } + } + + if (!applicablePolicyHandlers.isEmpty()) { + String phase = + (wire.getSource().getContract() instanceof ComponentReference) ? Phase.REFERENCE_POLICY + : Phase.SERVICE_POLICY; + + chain.addInterceptor(Phase.IMPLEMENTATION_POLICY, new PolicyHandlingInterceptor(chain.getTargetOperation(), + applicablePolicyHandlers)); + } + } + } catch (Exception e) { + throw new RuntimeException(e); + } + } + } + } +} |