diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta2-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0-Beta2-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java b/sca-java-2.x/tags/2.0-Beta2-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java new file mode 100644 index 0000000000..38727d4670 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta2-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java @@ -0,0 +1,225 @@ +/*
+ * 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.core.invocation;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.Serializable;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.node.NodeFactory;
+import org.apache.tuscany.sca.provider.EndpointAsyncProvider;
+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.EndpointRegistry;
+import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ComponentContext;
+
+/**
+ * A class that wraps the mechanics for sending async responses
+ * and hides the decision about whether the response will be processed
+ * natively or non-natively
+ *
+ * This class is generic, based on the type of targetAddress information required by
+ * the Binding that creates it
+ */
+public class AsyncResponseInvoker<T> implements InvokerAsyncResponse, Serializable {
+
+ /**
+ *
+ */
+ private static final long serialVersionUID = -7992598227671386588L;
+
+ private RuntimeEndpoint requestEndpoint;
+ private RuntimeEndpointReference responseEndpointReference;
+ private T responseTargetAddress;
+ private String relatesToMsgID;
+ private String operationName;
+ private MessageFactory messageFactory;
+ private String bindingType = "";
+ private boolean isNativeAsync;
+
+ public AsyncResponseInvoker(RuntimeEndpoint requestEndpoint,
+ RuntimeEndpointReference responseEndpointReference,
+ T responseTargetAddress, String relatesToMsgID,
+ String operationName, MessageFactory messageFactory) {
+ super();
+ this.requestEndpoint = requestEndpoint;
+ this.responseEndpointReference = responseEndpointReference;
+ this.responseTargetAddress = responseTargetAddress;
+ this.relatesToMsgID = relatesToMsgID;
+ this.operationName = operationName;
+ this.messageFactory = messageFactory;
+
+ if ((requestEndpoint.getBindingProvider() instanceof EndpointAsyncProvider) &&
+ (((EndpointAsyncProvider)requestEndpoint.getBindingProvider()).supportsNativeAsync())){
+ isNativeAsync = true;
+ } else {
+ isNativeAsync = false;
+ } // end if
+ } // end constructor
+
+ /**
+ * If you have a Tuscany message you can call this
+ */
+ public void invokeAsyncResponse(Message responseMessage) {
+ responseMessage.getHeaders().put(Constants.ASYNC_RESPONSE_INVOKER, this);
+ responseMessage.getHeaders().put(Constants.RELATES_TO, relatesToMsgID);
+
+ if (isNativeAsync){
+ // process the response as a native async response
+ requestEndpoint.invokeAsyncResponse(responseMessage);
+ } else {
+ // process the response as a non-native async response
+ responseEndpointReference.invoke(responseMessage);
+ }
+ } // end method invokeAsyncReponse(Message)
+
+ public T getResponseTargetAddress() {
+ return responseTargetAddress;
+ }
+
+ public void setResponseTargetAddress(T responseTargetAddress) {
+ this.responseTargetAddress = responseTargetAddress;
+ }
+
+ public String getRelatesToMsgID() {
+ return relatesToMsgID;
+ }
+
+ public void setRelatesToMsgID(String relatesToMsgID) {
+ this.relatesToMsgID = relatesToMsgID;
+ }
+
+ /**
+ * Invokes the async response where the parameter is Java bean(s)
+ * - this method creates a Tuscany message
+ *
+ * @param args the response data
+ */
+ public void invokeAsyncResponse(Object args) {
+
+ Message msg = messageFactory.createMessage();
+
+ msg.setOperation(getOperation( args ));
+
+ // If this is not native async, then any Throwable is being passed as a parameter and
+ // requires wrapping
+ if( !isNativeAsync && args instanceof Throwable ) {
+ args = new AsyncFaultWrapper( (Throwable) args );
+ } // end if
+
+ // If this is not native async, then the message must contain an array of args since
+ // this is what is expected when invoking an EPR for the async response...
+ if( !isNativeAsync ) {
+ Object[] objs = new Object[1];
+ objs[0] = args;
+ args = objs;
+ } // end if
+
+ msg.setTo(requestEndpoint);
+ msg.setFrom(responseEndpointReference);
+
+ if( args instanceof Throwable ) {
+ msg.setFaultBody(args);
+ } else {
+ msg.setBody(args);
+ } // end if
+
+ invokeAsyncResponse(msg);
+
+ } // end method invokeAsyncResponse(Object)
+
+ private Operation getOperation( Object args ) {
+ if( isNativeAsync ) {
+ List<Operation> ops = requestEndpoint.getService().getInterfaceContract().getInterface().getOperations();
+ for (Operation op : ops) {
+ if( operationName.equals(op.getName()) ) return op;
+ } // end for
+ return null;
+ } else {
+ operationName = "setResponse";
+ if( args instanceof Throwable ) { operationName = "setWrappedFault"; }
+ List<Operation> ops = responseEndpointReference.getReference().getInterfaceContract().getInterface().getOperations();
+ for (Operation op : ops) {
+ if( operationName.equals(op.getName()) ) return op;
+ } // end for
+ return null;
+ } // end if
+ } // end getOperation
+
+ public void setBindingType(String bindingType) {
+ this.bindingType = bindingType;
+ } // end method setBindingType
+
+ public String getBindingType() {
+ return bindingType;
+ } // end method getBindingType
+
+ public RuntimeEndpoint getRequestEndpoint() {
+ return this.requestEndpoint;
+ }
+
+ public RuntimeEndpointReference getResponseEndpointReference() {
+ return this.responseEndpointReference;
+ }
+
+ public void setResponseEndpointReference(
+ RuntimeEndpointReference responseEndpointReference) {
+ this.responseEndpointReference = responseEndpointReference;
+ }
+
+ private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
+ {
+ in.defaultReadObject();
+
+ // find the real endpoint
+ ExtensionPointRegistry extensionPointRegistry = NodeFactory.getInstance().getExtensionPointRegistry();
+ DomainRegistryFactory domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(extensionPointRegistry);
+ Collection<EndpointRegistry> endpointRegistries = domainRegistryFactory.getEndpointRegistries();
+ EndpointRegistry endpointRegistry = endpointRegistries.iterator().next();
+ List<Endpoint> endpoints = endpointRegistry.findEndpoint(requestEndpoint.getURI());
+ requestEndpoint = (RuntimeEndpoint)endpoints.get(0);
+
+ if (responseTargetAddress instanceof EndpointReference){
+ // fix the target as in this case it will be an EPR
+ EndpointReference epr = (EndpointReference)responseTargetAddress;
+ List<EndpointReference> endpointReferences = endpointRegistry.getEndpointReferences();
+ for (EndpointReference endpointReference : endpointReferences){
+ if (endpointReference.getURI().equals(epr.getURI())){
+ responseTargetAddress = (T)endpointReference;
+ }
+ }
+ }
+ }
+} // end class
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