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SWITCHYARD-2009 invoke local optimization for clustered endpoints #757

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Jan 15, 2015
Merged

SWITCHYARD-2009 invoke local optimization for clustered endpoints #757

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38 changes: 22 additions & 16 deletions sca/src/main/java/org/switchyard/component/sca/SCAInvoker.java
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@ public class SCAInvoker extends BaseServiceHandler {
private final String _targetNamespace;
private final boolean _clustered;
private ClusteredInvoker _invoker;
private boolean _preferLocal;
private boolean _disableRemoteTransaction = false;
private TransactionContextSerializer _txSerializer = new TransactionContextSerializer();

Expand All @@ -73,6 +74,7 @@ public SCAInvoker(SCABindingModel config) {
_targetService = config.getTarget();
_targetNamespace = config.getTargetNamespace();
_clustered = config.isClustered();
_preferLocal = config.isPreferLocal();
}

/**
Expand Down Expand Up @@ -100,10 +102,23 @@ public void handleMessage(Exchange exchange) throws HandlerException {
throw SCAMessages.MESSAGES.referenceBindingNotStarted(_referenceName, _bindingName);
}
try {
// Figure out the QName for the service were invoking
QName serviceName = getTargetServiceName(exchange);
// Get a handle for the reference and use a copy of the exchange to invoke it
ServiceReference ref = exchange.getProvider().getDomain().getServiceReference(serviceName);

if (_clustered) {
invokeRemote(exchange);
// check to see if local is preferred and available
if (_preferLocal && ref != null) {
invokeLocal(exchange, ref);
} else {
invokeRemote(exchange, serviceName);
}
} else {
invokeLocal(exchange);
if (ref == null) {
throw SCAMessages.MESSAGES.serviceReferenceNotFoundInDomain(serviceName.toString(), exchange.getProvider().getDomain().getName().toString());
}
invokeLocal(exchange, ref);
}
} catch (SwitchYardException syEx) {
throw new HandlerException(syEx.getMessage());
Expand All @@ -126,16 +141,9 @@ void setInvoker(ClusteredInvoker invoker) {
_invoker = invoker;
}

private void invokeLocal(Exchange exchange) throws HandlerException {
// Figure out the QName for the service were invoking
QName serviceName = getTargetServiceName(exchange);
// Get a handle for the reference and use a copy of the exchange to invoke it
ServiceReference ref = exchange.getProvider().getDomain().getServiceReference(serviceName);
if (ref == null) {
throw SCAMessages.MESSAGES.serviceReferenceNotFoundInDomain(serviceName.toString(), exchange.getProvider().getDomain().getName().toString());
}
private void invokeLocal(Exchange exchange, ServiceReference targetRef) throws HandlerException {
SynchronousInOutHandler replyHandler = new SynchronousInOutHandler();
Exchange ex = ref.createExchange(exchange.getContract().getProviderOperation().getName(), replyHandler);
Exchange ex = targetRef.createExchange(exchange.getContract().getProviderOperation().getName(), replyHandler);

// Can't send same message twice, so make a copy
Message invokeMsg = exchange.getMessage().copy();
Expand All @@ -146,7 +154,7 @@ private void invokeLocal(Exchange exchange) throws HandlerException {
ClassLoader origCL = null;
try {
ClassLoader targetCL = (ClassLoader)
ref.getDomain().getProperty(Deployment.CLASSLOADER_PROPERTY);
targetRef.getDomain().getProperty(Deployment.CLASSLOADER_PROPERTY);
origCL = Classes.setTCCL(targetCL);
ex.send(invokeMsg);
} finally {
Expand All @@ -172,10 +180,8 @@ private void invokeLocal(Exchange exchange) throws HandlerException {
}
}

private void invokeRemote(Exchange exchange) throws HandlerException {
// Figure out the QName for the service were invoking
QName serviceName = getTargetServiceName(exchange);

private void invokeRemote(Exchange exchange, QName serviceName) throws HandlerException {

RemoteMessage request = new RemoteMessage()
.setDomain(exchange.getProvider().getDomain().getName())
.setService(serviceName)
Expand Down