From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001 From: lresende Date: Mon, 30 Sep 2013 06:59:11 +0000 Subject: 2.0.1 RC1 release tag git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/core/invocation/RuntimeInvoker.java | 210 +++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java') diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java new file mode 100644 index 0000000000..8f093d62ed --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/RuntimeInvoker.java @@ -0,0 +1,210 @@ +/* + * 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.lang.reflect.InvocationTargetException; +import java.util.UUID; +import java.util.concurrent.ExecutorService; + +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.EndpointReference; +import org.apache.tuscany.sca.context.ThreadMessageContext; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.InvokerAsyncRequest; +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.runtime.Invocable; +import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; +import org.apache.tuscany.sca.work.WorkScheduler; +import org.oasisopen.sca.ServiceRuntimeException; + +/** + * Invoker for a endpoint or endpoint reference + * @version $Rev$ $Date$ + */ +public class RuntimeInvoker implements Invoker, InvokerAsyncRequest { + protected ExtensionPointRegistry registry; + protected MessageFactory messageFactory; + protected Invocable invocable; + + // Run async service invocations using a ThreadPoolExecutor + private ExecutorService theExecutor; + + public RuntimeInvoker(ExtensionPointRegistry registry, Invocable invocable) { + this.registry = registry; + this.messageFactory = registry.getExtensionPoint(FactoryExtensionPoint.class).getFactory(MessageFactory.class); + this.invocable = invocable; + + UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class); + WorkScheduler scheduler = utilities.getUtility(WorkScheduler.class); + theExecutor = scheduler.getExecutorService(); + } + + public Message invokeBinding(Message msg) { + Message context = ThreadMessageContext.setMessageContext(msg); + try { + return invocable.getBindingInvocationChain().getHeadInvoker().invoke(msg); + } finally { + ThreadMessageContext.setMessageContext(context); + } + } // end method invokeBinding + + /** + * Async Invoke of the Binding Chain + * @param msg - the message to use in the invocation + */ + public void invokeBindingAsync(Message msg) { + Message context = ThreadMessageContext.setMessageContext(msg); + try { + ((InvokerAsyncRequest)invocable.getBindingInvocationChain().getHeadInvoker()).invokeAsyncRequest(msg); + } catch (Throwable t ) { + // TODO - consider what best to do with exception + t.printStackTrace(); + } finally { + ThreadMessageContext.setMessageContext(context); + } // end try + } // end method invokeBindingAsync + + public Message invoke(Message msg) { + return invoke(msg.getOperation(), msg); + } + + public Object invoke(Operation operation, Object[] args) throws InvocationTargetException { + Message msg = messageFactory.createMessage(); + msg.setBody(args); + Message resp = invoke(operation, msg); + Object body = resp.getBody(); + if (resp.isFault()) { + throw new InvocationTargetException((Throwable)body); + } + return body; + } + + + public Message invoke(Operation operation, Message msg) { + InvocationChain chain = invocable.getInvocationChain(operation); + return invoke(chain, msg); + } + + public Message invoke(InvocationChain chain, Message msg) { + + if (invocable instanceof Endpoint) { + msg.setTo((Endpoint)invocable); + } else if (invocable instanceof EndpointReference) { + msg.setFrom((EndpointReference)invocable); + } + + Invoker headInvoker = chain.getHeadInvoker(); + Operation operation = chain.getTargetOperation(); + msg.setOperation(operation); + + Message msgContext = ThreadMessageContext.setMessageContext(msg); + try { + return headInvoker.invoke(msg); + } finally { + ThreadMessageContext.setMessageContext(msgContext); + } + } + + /** + * Initiate the sending of the forward part of an asynchronous + * exchange along the request part of the wire. + * + * @param msg the request message + */ + public void invokeAsync(Message msg) { + if (invocable instanceof Endpoint) { + Endpoint ep = (Endpoint)invocable; + msg.setTo(ep); + if (!ep.isAsyncInvocation()){ + throw new ServiceRuntimeException("Calling invokeAsync on a non-async endpoint - " + + ep); + } + } else if (invocable instanceof EndpointReference) { + RuntimeEndpointReference epr = (RuntimeEndpointReference)invocable; + if (!epr.isAsyncInvocation()){ + throw new ServiceRuntimeException("Calling invokeAsync on a non-async endpoint reference - " + + epr); + } + if (epr.isOutOfDate()) { + epr.rebuild(); + } + msg.setFrom(epr); + msg.setTo(epr.getTargetEndpoint()); + } + + Operation operation = msg.getOperation(); + InvocationChain chain = invocable.getInvocationChain(operation); + + if (chain == null) { + throw new IllegalArgumentException("No matching operation is found: " + operation.getName()); + } + + // create an async message ID if there isn't one there already + if (!msg.getHeaders().containsKey(Constants.MESSAGE_ID)){ + msg.getHeaders().put(Constants.MESSAGE_ID, UUID.randomUUID().toString());UUID.randomUUID().toString(); + } + + // Perform the async invocation + Invoker headInvoker = chain.getHeadInvoker(); + + Message msgContext = ThreadMessageContext.setMessageContext(msg); + try { + try { + ((InvokerAsyncRequest)headInvoker).invokeAsyncRequest(msg); + } catch (ServiceRuntimeException ex) { + throw ex; + } catch (Throwable ex) { + // temporary fix to swallow the dummy exception that's + // thrown back to get past the response chain processing. + if (!(ex instanceof AsyncResponseException)){ + throw new ServiceRuntimeException(ex); + } + } + } finally { + ThreadMessageContext.setMessageContext(msgContext); + } + + return; + } + + /** + * Initiate the sending of the response part of an asynchronous + * exchange along the response part of the wire. + * + * @param msg the response message + */ + public void invokeAsyncResponse(Message msg) { + InvocationChain chain = invocable.getInvocationChain(msg.getOperation()); + Invoker tailInvoker = chain.getTailInvoker(); + ((InvokerAsyncResponse)tailInvoker).invokeAsyncResponse(msg); + } // end method invokeAsyncResponse + + @Override + public void invokeAsyncRequest(Message msg) throws Throwable { + invokeAsync(msg); + } // end method invokeAsyncRequest +} -- cgit v1.2.3