diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/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-1.6.2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java new file mode 100644 index 0000000000..ee3507ef80 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaPolicyHandlingRuntimeWireProcessor.java @@ -0,0 +1,126 @@ +/*
+ * 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 whenever PolicySets are specified in a Java Implementation
+ *
+ * @version $Rev$ $Date$
+ */
+public class JavaPolicyHandlingRuntimeWireProcessor implements RuntimeWireProcessor {
+ private static final 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);
+ }
+ }
+ }
+ }
+}
|