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Posted to commits@tuscany.apache.org by lr...@apache.org on 2008/04/17 17:21:03 UTC
svn commit: r649152 -
/incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java
Author: lresende
Date: Thu Apr 17 08:20:49 2008
New Revision: 649152
URL: http://svn.apache.org/viewvc?rev=649152&view=rev
Log:
Missing new file for implementation-bpel
Added:
incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java (with props)
Added: incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java
URL: http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java?rev=649152&view=auto
==============================================================================
--- incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java (added)
+++ incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java Thu Apr 17 08:20:49 2008
@@ -0,0 +1,253 @@
+/*
+ * 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.bpel.ode;
+
+import java.util.concurrent.Callable;
+
+import javax.xml.namespace.QName;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.ode.bpel.iapi.Message;
+import org.apache.ode.bpel.iapi.MessageExchange;
+import org.apache.ode.bpel.iapi.PartnerRoleMessageExchange;
+import org.apache.ode.bpel.iapi.Scheduler;
+import org.apache.ode.utils.DOMUtils;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeWire;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class ODEExternalService {
+ private static final Log __log = LogFactory.getLog(ODEExternalService.class);
+
+ private EmbeddedODEServer _server;
+ private Scheduler _sched;
+
+ public ODEExternalService(EmbeddedODEServer server) {
+ this._server = server;
+ this._sched = _server.getScheduler();
+ }
+
+
+ public void invoke(final PartnerRoleMessageExchange partnerRoleMessageExchange) {
+ boolean isTwoWay =
+ partnerRoleMessageExchange.getMessageExchangePattern() == org.apache.ode.bpel.iapi.MessageExchange.MessageExchangePattern.REQUEST_RESPONSE;
+
+ if (isTwoWay) {
+ // Defer the invoke until the transaction commits.
+ _sched.registerSynchronizer(new Scheduler.Synchronizer() {
+ public void beforeCompletion() {
+
+ }
+
+ public void afterCompletion(boolean success) {
+ // If the TX is rolled back, then we don't send the request.
+ if (!success)
+ return;
+
+ // The invocation must happen in a separate thread, holding
+ // on the afterCompletion
+ // blocks other operations that could have been listed there
+ // as well.
+ _server.getExecutor().submit(new Callable<Object>() {
+ public Object call() throws Exception {
+ try {
+ // do execution
+ RuntimeComponent tuscanyRuntimeComponent = _server.getTuscanyRuntimeComponent("HelloWorldService");
+
+ RuntimeComponentReference runtimeComponentReference =
+ (RuntimeComponentReference)tuscanyRuntimeComponent.getReferences().get(0);
+ RuntimeWire runtimeWire =
+ runtimeComponentReference.getRuntimeWire(runtimeComponentReference.getBindings().get(0));
+
+ // convert operations
+ Operation operation =
+ findOperation(partnerRoleMessageExchange.getOperation().getName(), runtimeComponentReference);
+
+ /*
+ * This is how a request looks like (payload is
+ * wrapped with extra info) <?xml version="1.0"
+ * encoding="UTF-8"?> <message> <parameters>
+ * <getGreetings xmlns="http://greetings">
+ * <message xmlns="http://helloworld">Luciano</message>
+ * </getGreetings> </parameters> </message>
+ */
+ Element msg = partnerRoleMessageExchange.getRequest().getMessage();
+ if (msg != null) {
+ String xml = DOMUtils.domToString(msg);
+ System.out.println(">>> " + xml);
+
+ String payload =
+ DOMUtils.domToString(getPayload(partnerRoleMessageExchange.getRequest()));
+ System.out.println(">>> " + payload);
+
+ Object[] args = new Object[] {getPayload(partnerRoleMessageExchange.getRequest())};
+
+ Object result = null;
+ boolean success = false;
+
+ try {
+ result = runtimeWire.invoke(operation, args);
+ success = true;
+ } catch (Exception e) {
+ partnerRoleMessageExchange.replyWithFailure(MessageExchange.FailureType.OTHER,
+ e.getMessage(),
+ null);
+ }
+
+ // partnerRoleMessageExchange.getResponse().setMessage(null);
+ System.out.println(">>> Result : " + DOMUtils.domToString((Element)result));
+
+ if (!success) {
+ return null;
+ }
+
+ // two way invocation
+ // process results based on type of message
+ // invocation
+
+ // Message response =
+ // createResponseMessage(partnerRoleMessageExchange,
+ // (Element) result);
+ // partnerRoleMessageExchange.reply(response);
+ replyTwoWayInvocation(partnerRoleMessageExchange.getMessageExchangeId(),
+ (Element)result);
+ }
+
+ } catch (Throwable t) {
+ // some error
+ String errmsg =
+ "Error sending message (mex=" + partnerRoleMessageExchange + "): " + t.getMessage();
+ __log.error(errmsg, t);
+ /*replyWithFailure(partnerRoleMessageExchange.getMessageExchangeId(),
+ MessageExchange.FailureType.COMMUNICATION_ERROR,
+ errmsg,
+ null);*/
+ }
+ return null;
+ }
+ });
+
+ }
+ });
+ partnerRoleMessageExchange.replyAsync();
+
+ } else {
+ /** one-way case * */
+ _server.getExecutor().submit(new Callable<Object>() {
+ public Object call() throws Exception {
+ // do reply
+ // operationClient.execute(false);
+ return null;
+ }
+ });
+ partnerRoleMessageExchange.replyOneWayOk();
+ }
+ }
+
+
+ /**
+ * Find the SCA Reference operation
+ *
+ * @param operationName
+ * @param runtimeComponentReference
+ * @return
+ */
+ private Operation findOperation(String operationName, RuntimeComponentReference runtimeComponentReference) {
+ Operation reseultOperation = null;
+
+ for(Operation operation : runtimeComponentReference.getInterfaceContract().getInterface().getOperations()) {
+ if (operationName.equalsIgnoreCase(operation.getName())) {
+ reseultOperation = operation;
+ break;
+ }
+ }
+ return reseultOperation;
+ }
+
+ /**
+ * Get paylod from a given ODEMessage
+ * @param odeMessage
+ * @return
+ */
+ private Element getPayload(Message odeMessage) {
+ Element payload = null;
+ Element parameters = odeMessage.getPart("parameters");
+
+ if( parameters != null && parameters.hasChildNodes()) {
+ payload = (Element) parameters.getFirstChild().getFirstChild();
+ }
+
+ return payload;
+ }
+
+
+ private void replyTwoWayInvocation(final String odeMexId, final Element result) {
+ try {
+ _server.getScheduler().execIsolatedTransaction( new Callable<Void>() {
+ public Void call() throws Exception {
+ PartnerRoleMessageExchange odeMex = null;
+ try {
+ odeMex = (PartnerRoleMessageExchange) _server.getBpelServer().getEngine().getMessageExchange(odeMexId);
+ if (odeMex != null) {
+ Message response = createResponseMessage(odeMex, (Element) result);
+ odeMex.reply(response);
+ }
+ } catch (Exception ex) {
+ String errmsg = "Unable to process response: " + ex.getMessage();
+ if (odeMex != null) {
+ odeMex.replyWithFailure(MessageExchange.FailureType.OTHER, errmsg, null);
+ }
+ }
+
+ return null;
+ }
+ });
+ } catch(Exception ex) {
+ ex.printStackTrace();
+ }
+
+ }
+
+ private Message createResponseMessage(PartnerRoleMessageExchange partnerRoleMessageExchange, Element invocationResult) {
+ Document dom = DOMUtils.newDocument();
+
+ Element contentMessage = dom.createElement("message");
+ Element contentPart = dom.createElement(partnerRoleMessageExchange.getOperation().getOutput().getName());
+
+ contentPart.appendChild(dom.importNode(invocationResult, true));
+ contentMessage.appendChild(contentPart);
+ dom.appendChild(contentMessage);
+
+ System.out.println("::result message:: " + DOMUtils.domToString(dom.getDocumentElement()));
+
+ QName id = partnerRoleMessageExchange.getOperation().getOutput().getMessage().getQName();
+ Message response = partnerRoleMessageExchange.createMessage(id);
+ response.setMessage(dom.getDocumentElement());
+
+ return response;
+ }
+
+}
Propchange: incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java
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Propchange: incubator/tuscany/java/sca/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/ODEExternalService.java
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