diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta1-RC2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsuserprop/runtime/OperationSelectorJMSUserPropServiceInterceptor.java')
1 files changed, 107 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsuserprop/runtime/OperationSelectorJMSUserPropServiceInterceptor.java b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsuserprop/runtime/OperationSelectorJMSUserPropServiceInterceptor.java new file mode 100644 index 0000000000..343aa8d52a --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsuserprop/runtime/OperationSelectorJMSUserPropServiceInterceptor.java @@ -0,0 +1,107 @@ +/* + * 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.binding.jms.operationselector.jmsuserprop.runtime; + +import java.util.List; + +import javax.jms.JMSException; + +import org.apache.tuscany.sca.binding.jms.JMSBinding; +import org.apache.tuscany.sca.binding.jms.JMSBindingException; +import org.apache.tuscany.sca.binding.jms.context.JMSBindingContext; +import org.apache.tuscany.sca.binding.jms.operationselector.OperationSelectorJMSUserProp; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Interceptor; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeEndpoint; + +/** + * Interceptor for user property based operation selection + * + * <operationSelector.jmsUser propertName="MyHeaderProperty"/> + * + */ +public class OperationSelectorJMSUserPropServiceInterceptor implements Interceptor { + + private Invoker next; + private RuntimeEndpoint endpoint; + private JMSBinding jmsBinding; + private OperationSelectorJMSUserProp operationSelector; + private RuntimeComponentService service; + private List<Operation> serviceOperations; + + public OperationSelectorJMSUserPropServiceInterceptor(RuntimeEndpoint endpoint) { + super(); + this.jmsBinding = (JMSBinding) endpoint.getBinding(); + this.operationSelector = (OperationSelectorJMSUserProp)jmsBinding.getOperationSelector(); + this.endpoint = endpoint; + this.service = (RuntimeComponentService) endpoint.getService(); + this.serviceOperations = service.getInterfaceContract().getInterface().getOperations(); + } + + public Message invoke(Message msg) { + return next.invoke(invokeRequest(msg)); + } + + public Message invokeRequest(Message msg) { + // get the jms context + JMSBindingContext context = msg.getBindingContext(); + javax.jms.Message jmsMsg = context.getJmsMsg(); + + Operation operation = getTargetOperation(jmsMsg); + msg.setOperation(operation); + + return msg; + } + + protected Operation getTargetOperation(javax.jms.Message jmsMsg) { + String operationName = null; + String opSelectorPropertyName = operationSelector.getPropertyName(); + + try { + operationName = jmsMsg.getStringProperty(opSelectorPropertyName); + } catch(JMSException e) { + throw new JMSBindingException(e); + } + + if (operationName == null){ + throw new JMSBindingException("Property " + opSelectorPropertyName + " not found in message header"); + } + + for (Operation op : serviceOperations) { + if (op.getName().equals(operationName)) { + return op; + } + } + + throw new JMSBindingException("Can't find operation " + operationName); + } + + + public Invoker getNext() { + return next; + } + + public void setNext(Invoker next) { + this.next = next; + } + +} |