diff options
Diffstat (limited to 'tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsdefault/runtime/OperationSelectorJMSDefaultServiceInterceptor.java')
1 files changed, 190 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsdefault/runtime/OperationSelectorJMSDefaultServiceInterceptor.java b/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsdefault/runtime/OperationSelectorJMSDefaultServiceInterceptor.java new file mode 100644 index 0000000000..8efd75d40d --- /dev/null +++ b/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/operationselector/jmsdefault/runtime/OperationSelectorJMSDefaultServiceInterceptor.java @@ -0,0 +1,190 @@ +/* + * 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.jmsdefault.runtime; + +import java.io.ByteArrayInputStream; +import java.io.StringReader; +import java.util.List; + +import javax.jms.BytesMessage; +import javax.jms.JMSException; +import javax.jms.TextMessage; +import javax.xml.stream.XMLInputFactory; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; + +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.impl.builder.StAXOMBuilder; +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.provider.JMSMessageProcessor; +import org.apache.tuscany.sca.binding.jms.provider.JMSMessageProcessorUtil; +import org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory; +import org.apache.tuscany.sca.binding.jms.wireformat.WireFormatJMSDefault; +import org.apache.tuscany.sca.binding.jms.wireformat.WireFormatJMSTextXML; +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.RuntimeWire; + +/** + * Policy handler to handle PolicySet related to Logging with the QName + * {http://tuscany.apache.org/xmlns/sca/1.0/impl/java}LoggingPolicy + * + * @version $Rev$ $Date$ + */ +public class OperationSelectorJMSDefaultServiceInterceptor implements Interceptor { + + private static final String ON_MESSAGE_METHOD_NAME = "onMessage"; + + private Invoker next; + private RuntimeWire runtimeWire; + private JMSResourceFactory jmsResourceFactory; + private JMSBinding jmsBinding; + private JMSMessageProcessor requestMessageProcessor; + private JMSMessageProcessor responseMessageProcessor; + private RuntimeComponentService service; + private List<Operation> serviceOperations; + + + public OperationSelectorJMSDefaultServiceInterceptor(JMSBinding jmsBinding, JMSResourceFactory jmsResourceFactory, + RuntimeWire runtimeWire) { + super(); + this.jmsBinding = jmsBinding; + this.runtimeWire = runtimeWire; + this.jmsResourceFactory = jmsResourceFactory; + this.requestMessageProcessor = JMSMessageProcessorUtil.getRequestMessageProcessor(jmsBinding); + this.responseMessageProcessor = JMSMessageProcessorUtil.getResponseMessageProcessor(jmsBinding); + this.service = (RuntimeComponentService)runtimeWire.getEndpoint().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(); + + String operationName = requestMessageProcessor.getOperationName(jmsMsg); + Operation operation = getTargetOperation(operationName, jmsMsg); + msg.setOperation(operation); + + return msg; + } + + protected Operation getTargetOperation(String operationName, javax.jms.Message jmsMsg) { + Operation operation = null; + + if (serviceOperations.size() == 1) { + + // SCA JMS Binding Specification - Rule 1.5.1 line 203 + operation = serviceOperations.get(0); + + } else if (operationName != null) { + + // SCA JMS Binding Specification - Rule 1.5.1 line 205 + for (Operation op : serviceOperations) { + if (op.getName().equals(operationName)) { + operation = op; + break; + } + } + } else if (jmsBinding.getRequestWireFormat() instanceof WireFormatJMSDefault + || jmsBinding.getRequestWireFormat() instanceof WireFormatJMSTextXML) { + + OMElement rootElement; + String operationFromPayload; + + try { + if (jmsMsg instanceof TextMessage) { + String xmlPayload = ((TextMessage) jmsMsg).getText(); + + if (xmlPayload != null) { + XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(xmlPayload)); + StAXOMBuilder builder = new StAXOMBuilder(reader); + rootElement = builder.getDocumentElement(); + operationFromPayload = rootElement.getLocalName(); + for (Operation op : serviceOperations) { + if (op.getName().equals(operationFromPayload)) { + operation = op; + break; + } + } + } + } else if (jmsMsg instanceof BytesMessage) { + long noOfBytes = ((BytesMessage) jmsMsg).getBodyLength(); + byte[] bytes = new byte[(int) noOfBytes]; + ((BytesMessage) jmsMsg).readBytes(bytes); + ((BytesMessage) jmsMsg).reset(); + + if (bytes != null) { + XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new ByteArrayInputStream(bytes)); + StAXOMBuilder builder = new StAXOMBuilder(reader); + rootElement = builder.getDocumentElement(); + operationFromPayload = rootElement.getLocalName(); + for (Operation op : serviceOperations) { + if (op.getName().equals(operationFromPayload)) { + operation = op; + break; + } + } + } + } + + } catch (XMLStreamException e) { + //let's ignore this in case the client doesn't want to use a wrapped xml message + } catch (JMSException e) { + throw new JMSBindingException(e); + } + + // If operation is still null we attempt the last rule + if (operation == null) { + + // SCA JMS Binding Specification - Rule 1.5.1 line 207 + for (Operation op : serviceOperations) { + if (op.getName().equals(ON_MESSAGE_METHOD_NAME)) { + operation = op; + break; + } + } + } + } + + if (operation == null) { + throw new JMSBindingException("Can't find operation " + (operationName != null ? operationName : ON_MESSAGE_METHOD_NAME)); + } + + return operation; + } + + public Invoker getNext() { + return next; + } + + public void setNext(Invoker next) { + this.next = next; + } + +} |