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authoredwardsmj <edwardsmj@13f79535-47bb-0310-9956-ffa450edef68>2009-08-17 11:14:04 +0000
committeredwardsmj <edwardsmj@13f79535-47bb-0310-9956-ffa450edef68>2009-08-17 11:14:04 +0000
commitbcc56f14a42c7173af5dd242826a02d9b6225fd8 (patch)
tree8a7b6dfadc775205a887416f58bca86d7f71d1af /java/sca/modules/implementation-bpel-runtime
parente5133b4dd0a5990194d41ba691af68c828a30b01 (diff)
Adding support for SCA callbacks, as described in TUSCANY 3216
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@804938 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/sca/modules/implementation-bpel-runtime')
-rw-r--r--java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELImplementationProvider.java16
-rw-r--r--java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELInvoker.java55
2 files changed, 51 insertions, 20 deletions
diff --git a/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELImplementationProvider.java b/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELImplementationProvider.java
index 82658aa2b7..68492a5dbb 100644
--- a/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELImplementationProvider.java
+++ b/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELImplementationProvider.java
@@ -109,9 +109,16 @@ public class BPELImplementationProvider implements ImplementationProvider {
public void start() {
if(__log.isInfoEnabled()) {
__log.info("Starting " + component.getName());
- }
+ } // end if
+
+ ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+ ClassLoader bpelcl = this.getClass().getClassLoader();
try {
+ // Switch TCCL - under OSGi this causes the TCCL to be set to the Bundle
+ // classloader - this is then used by 3rd party code from ODE and its dependencies
+ if( bpelcl != tccl ) Thread.currentThread().setContextClassLoader(bpelcl);
+
if (!odeServer.isInitialized()) {
// start ode server
odeServer.init();
@@ -142,8 +149,11 @@ public class BPELImplementationProvider implements ImplementationProvider {
throw new RuntimeException("BPEL Component Type Implementation : Error initializing embedded ODE server " + inite.getMessage(), inite);
} catch(Exception e) {
throw new RuntimeException("BPEL Component Type Implementation initialization failure : " + e.getMessage(), e);
- }
- }
+ } finally {
+ // Restore the TCCL if we changed it
+ if( bpelcl != tccl ) Thread.currentThread().setContextClassLoader(tccl);
+ } // end try
+ } // end method start()
public void stop() {
if(__log.isInfoEnabled()) {
diff --git a/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELInvoker.java b/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELInvoker.java
index 7285ceb601..0b6ade799b 100644
--- a/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELInvoker.java
+++ b/java/sca/modules/implementation-bpel-runtime/src/main/java/org/apache/tuscany/sca/implementation/bpel/ode/provider/BPELInvoker.java
@@ -29,11 +29,14 @@ import javax.xml.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
+import org.apache.ode.bpel.iapi.MessageExchange;
import org.apache.ode.bpel.iapi.MyRoleMessageExchange;
import org.apache.ode.bpel.iapi.MessageExchange.Status;
import org.apache.ode.utils.DOMUtils;
import org.apache.ode.utils.GUID;
import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.implementation.bpel.ode.EmbeddedODEServer;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.Operation;
@@ -68,18 +71,27 @@ public class BPELInvoker implements Invoker {
private Part bpelOperationInputPart;
private Part bpelOperationOutputPart;
private RuntimeComponent component;
+ // Marks if this service has a callback interface
+ private Boolean isCallback = false;
+ private EndpointReference callbackEPR;
- public BPELInvoker(RuntimeComponent component, RuntimeComponentService service, Operation operation, EmbeddedODEServer odeServer, TransactionManager txMgr) {
+ public BPELInvoker(RuntimeComponent component, RuntimeComponentService service, Operation operation,
+ EmbeddedODEServer odeServer, TransactionManager txMgr) {
this.service = service;
this.component = component;
this.operation = operation;
this.bpelOperationName = operation.getName();
this.odeServer = odeServer;
this.txMgr = txMgr;
+ this.isCallback = serviceHasCallback( service );
initializeInvocation();
- }
-
+ } // end method BPELInvoker
+
+ private boolean serviceHasCallback( RuntimeComponentService service ) {
+ if(service.getInterfaceContract().getCallbackInterface() != null) return true;
+ return false;
+ } // end method serviceHasCallback
private void initializeInvocation() {
@@ -90,10 +102,6 @@ public class BPELInvoker implements Invoker {
WSDLInterface wsdlInterface = null;
wsdlInterface = (WSDLInterface) interfaze;
- // The following commented out code is bogus and is replaced by what follows - Mike Edwards
- // Service serviceDefinition = (Service) wsdlInterface.getWsdlDefinition().getDefinition().getAllServices().values().iterator().next();
- // bpelServiceName = serviceDefinition.getQName();
- //
// Fetch the service name from the service object - including the componentURI guarantees a unique service name
String componentURI = component.getURI();
bpelServiceName = new QName( Base.SCA11_TUSCANY_NS, componentURI + service.getName() );
@@ -101,10 +109,14 @@ public class BPELInvoker implements Invoker {
bpelOperationInputPart = (Part) wsdlInterface.getPortType().getOperation(bpelOperationName,null,null).getInput().getMessage().getParts().values().iterator().next();
bpelOperationOutputPart = (Part) wsdlInterface.getPortType().getOperation(bpelOperationName,null,null).getOutput().getMessage().getParts().values().iterator().next();
}
- }
+ } // end method initializeInvocation
public Message invoke(Message msg) {
try {
+ if( isCallback ) {
+ // Extract the callback endpoint metadata
+ callbackEPR = msg.getFrom();
+ } // end if
Object[] args = msg.getBody();
Object resp = doTheWork(args);
msg.setBody(resp);
@@ -125,15 +137,23 @@ public class BPELInvoker implements Invoker {
Future<?> onhold = null;
//Process the BPEL process invocation
+ Long processID = 0L;
try {
txMgr.begin();
mex = odeServer.getBpelServer().getEngine().createMessageExchange(new GUID().toString(),
bpelServiceName,
bpelOperationName);
+ //TODO - this will not be true for OneWay operations - need to handle those
mex.setProperty("isTwoWay", "true");
onhold = mex.invoke(createInvocationMessage(mex, args));
-
+
txMgr.commit();
+ // Deal with callback cases - store the callback metadata by process instance ID
+ if( isCallback ) {
+ processID = odeServer.getProcessIDFromMex(mex.getMessageExchangeId());
+ // Store the callback metadata for this invocation
+ odeServer.saveCallbackMetadata( processID, service.getName(), callbackEPR );
+ } // end if
} catch (Exception e) {
try {
txMgr.rollback();
@@ -141,8 +161,7 @@ public class BPELInvoker implements Invoker {
}
throw new InvocationTargetException(e, "Error invoking BPEL process : " + e.getMessage());
- }
-
+ } // end try
// Waiting until the reply is ready in case the engine needs to continue in a different thread
if (onhold != null) {
@@ -150,8 +169,8 @@ public class BPELInvoker implements Invoker {
onhold.get();
} catch (Exception e) {
throw new InvocationTargetException(e,"Error invoking BPEL process : " + e.getMessage());
- }
- }
+ } // end try
+ } // end if
//Process the BPEL invocation response
try {
@@ -193,8 +212,10 @@ public class BPELInvoker implements Invoker {
}
throw new InvocationTargetException(e, "Error retrieving BPEL process invocation status : " + e.getMessage());
- }
+ } // end try
+ // Cleanup the ODE MessageExchange object
+ //mex.release();
return response;
}
@@ -218,6 +239,7 @@ public class BPELInvoker implements Invoker {
Element contentPart = dom.createElement(bpelOperationInputPart.getName());
Element payload = null;
+ // TODO handle WSDL input messages with multiple Parts...
//TUSCANY-2321 - Properly handling Document or Element types
if(args[0] instanceof Document) {
payload = (Element) ((Document) args[0]).getFirstChild();
@@ -258,6 +280,5 @@ public class BPELInvoker implements Invoker {
// MJE, 12/06/2009 - changed to return the message without the PART wrapper element, since this element is not
// transmitted in the SOAP messages on the wire
- //return (Element) DOMUtils.findChildByName(response, new QName("",bpelOperationOutputPart.getName()));
- }
-}
+ } // end method processResponse
+} // end class BPELInvoker