diff options
Diffstat (limited to 'sandbox/ant/sca/tags/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java')
| -rw-r--r-- | sandbox/ant/sca/tags/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/sandbox/ant/sca/tags/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java b/sandbox/ant/sca/tags/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java deleted file mode 100644 index 79daf537ea..0000000000 --- a/sandbox/ant/sca/tags/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java +++ /dev/null @@ -1,270 +0,0 @@ -/*
- * 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.impl;
-
-import java.io.IOException;
-import java.io.ObjectInput;
-import java.io.ObjectOutput;
-import java.util.List;
-
-import org.apache.tuscany.sca.assembly.Binding;
-import org.apache.tuscany.sca.assembly.Component;
-import org.apache.tuscany.sca.assembly.ComponentService;
-import org.apache.tuscany.sca.assembly.Contract;
-import org.apache.tuscany.sca.assembly.OptimizableBinding;
-import org.apache.tuscany.sca.core.assembly.impl.EndpointReferenceImpl;
-import org.apache.tuscany.sca.core.assembly.impl.RuntimeComponentReferenceImpl;
-import org.apache.tuscany.sca.core.assembly.impl.RuntimeWireImpl;
-import org.apache.tuscany.sca.core.context.CompositeContext;
-import org.apache.tuscany.sca.core.context.impl.CallableReferenceImpl;
-import org.apache.tuscany.sca.core.invocation.ProxyFactory;
-import org.apache.tuscany.sca.core.invocation.ThreadMessageContext;
-import org.apache.tuscany.sca.interfacedef.InterfaceContract;
-import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
-import org.apache.tuscany.sca.invocation.Message;
-import org.apache.tuscany.sca.runtime.EndpointReference;
-import org.apache.tuscany.sca.runtime.RuntimeComponent;
-import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
-import org.apache.tuscany.sca.runtime.RuntimeComponentService;
-import org.apache.tuscany.sca.runtime.RuntimeWire;
-
-/**
- * Returns proxy instance for a wire callback
- *
- * @version $Rev: 576055 $ $Date: 2007-09-16 08:11:45 +0100 (Sun, 16 Sep 2007) $
- */
-public class CallbackReferenceImpl<B> extends CallableReferenceImpl<B> {
- private RuntimeWire wire;
- private List<RuntimeWire> wires;
- private EndpointReference resolvedEndpoint;
- private Object convID;
-
- public static CallbackReferenceImpl newInstance(Class interfaze,
- ProxyFactory proxyFactory,
- List<RuntimeWire> wires) {
- if (getCallbackEndpoint(ThreadMessageContext.getMessageContext()) != null) {
- return new CallbackReferenceImpl(interfaze, proxyFactory, wires);
- } else {
- return null;
- }
- }
-
- /**
- * Public constructor for Externalizable serialization/deserialization.
- */
- public CallbackReferenceImpl() {
- super();
- }
-
- private CallbackReferenceImpl(Class<B> interfaze, ProxyFactory proxyFactory, List<RuntimeWire> wires) {
- super(interfaze, null, proxyFactory);
- this.wires = wires;
- init();
- }
-
- public void init() {
- Message msgContext = ThreadMessageContext.getMessageContext();
- wire = selectCallbackWire(msgContext);
- if (wire == null) {
- //FIXME: need better exception
- throw new RuntimeException("No callback binding found for " + msgContext.getTo().getURI());
- }
- resolvedEndpoint = getCallbackEndpoint(msgContext);
- convID = msgContext.getFrom().getReferenceParameters().getConversationID();
- callbackID = msgContext.getFrom().getReferenceParameters().getCallbackID();
- }
-
- @Override
- protected Object createProxy() throws Exception {
- return proxyFactory.createCallbackProxy(this);
- }
-
- protected RuntimeWire getCallbackWire() {
- if (resolvedEndpoint == null) {
- return null;
- } else {
- return cloneAndBind(wire);
- }
- }
-
- protected Object getConvID() {
- return convID;
- }
-
- protected EndpointReference getResolvedEndpoint() {
- return resolvedEndpoint;
- }
-
- private RuntimeWire selectCallbackWire(Message msgContext) {
- // look for callback binding with same name as service binding
- EndpointReference to = msgContext.getTo();
- if (to == null) {
- //FIXME: need better exception
- throw new RuntimeException("Destination for forward call is not available");
- }
- for (RuntimeWire wire : wires) {
- if (wire.getSource().getBinding().getName().equals(to.getBinding().getName())) {
- return wire;
- }
- }
-
- // if no match, look for callback binding with same type as service binding
- for (RuntimeWire wire : wires) {
- if (wire.getSource().getBinding().getClass() == to.getBinding().getClass()) {
- return wire;
- }
- }
-
- // no suitable callback wire was found
- return null;
- }
-
- /**
- * @param msgContext
- */
- private static EndpointReference getCallbackEndpoint(Message msgContext) {
- EndpointReference from = msgContext.getFrom();
- if (from == null) {
- return null;
- }
- return from.getReferenceParameters().getCallbackReference();
- }
-
- private RuntimeWire cloneAndBind(RuntimeWire wire) {
- RuntimeWire boundWire = null;
- if (resolvedEndpoint != null) {
- boundWire = ((RuntimeWireImpl)wire).lookupCache(resolvedEndpoint);
- if (boundWire != null) {
- return boundWire;
- }
- try {
- Contract contract = resolvedEndpoint.getContract();
- RuntimeComponentReference ref = null;
- if (contract == null) {
- boundWire = (RuntimeWire)wire.clone();
-
- } else if (contract instanceof RuntimeComponentReference) {
- ref = (RuntimeComponentReference)contract;
- boundWire = ref.getRuntimeWire(resolvedEndpoint.getBinding());
-
- } else { // contract instanceof RuntimeComponentService
- ref = bind((RuntimeComponentReference)wire.getSource().getContract(),
- resolvedEndpoint.getComponent(),
- (RuntimeComponentService)contract);
- boundWire = ref.getRuntimeWires().get(0);
- }
- configureWire(boundWire);
- ((RuntimeWireImpl)wire).addToCache(resolvedEndpoint, boundWire);
- } catch (CloneNotSupportedException e) {
- // will not happen
- }
- }
- return boundWire;
- }
-
- private static RuntimeComponentReference bind(RuntimeComponentReference reference,
- RuntimeComponent component,
- RuntimeComponentService service) throws CloneNotSupportedException {
- RuntimeComponentReference ref = (RuntimeComponentReference)reference.clone();
- ref.getTargets().add(service);
- ref.getBindings().clear();
- for (Binding binding : service.getBindings()) {
- if (binding instanceof OptimizableBinding) {
- OptimizableBinding optimizableBinding = (OptimizableBinding)((OptimizableBinding)binding).clone();
- optimizableBinding.setTargetBinding(binding);
- optimizableBinding.setTargetComponent(component);
- optimizableBinding.setTargetComponentService(service);
- ref.getBindings().add(optimizableBinding);
- } else {
- ref.getBindings().add(binding);
- }
- }
- return ref;
- }
-
- private void configureWire(RuntimeWire wire) {
- // need to set the endpoint on the binding also so that when the chains are created next
- // the sca binding can decide whether to provide local or remote invokers.
- // TODO - there is a problem here though in that I'm setting a target on a
- // binding that may possibly be trying to point at two things in the multi threaded
- // case. Need to confirm the general model here and how the clone and bind part
- // is intended to work
- Binding binding = wire.getSource().getBinding();
- binding.setURI(resolvedEndpoint.getURI());
-
- // also need to set the target contract as it varies for the sca binding depending on
- // whether it is local or remote
- RuntimeComponentReference ref = (RuntimeComponentReference)wire.getSource().getContract();
- wire.getTarget().setInterfaceContract(ref.getBindingProvider(binding).getBindingInterfaceContract());
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
- super.readExternal(in);
- this.callbackID = in.readObject();
- this.convID = in.readObject();
-
- this.compositeActivator = CompositeContext.getCurrentCompositeActivator();
-
- // Get the target Component and Service from the URI
- final String uri = in.readUTF();
- final Component targetComponent = super.resolveComponentURI(uri);
- final ComponentService targetService = super.resolveServiceURI(uri, targetComponent);
- final InterfaceContract targetServiceIfaceContract = targetService.getInterfaceContract();
-
- // Re-create the resolved Endpoint
- this.resolvedEndpoint = new EndpointReferenceImpl(
- (RuntimeComponent) targetComponent, targetService, null,
- targetServiceIfaceContract);
-
- // Copy the Java Interface from the Service
- final JavaInterface ji = (JavaInterface) targetServiceIfaceContract.getInterface();
- this.businessInterface = (Class<B>) ji.getJavaClass();
-
- // We need to re-create the callback wire. We need to do this on a clone of the Service
- // wire since we need to change some details on it.
- // FIXME: Is this the best way to do this?
- final RuntimeWire cbWire = ((RuntimeComponentService) targetService).getRuntimeWires().get(0);
- try {
- this.wire = (RuntimeWireImpl) cbWire.clone();
- } catch (CloneNotSupportedException e) {
- throw new IOException(e.toString());
- }
-
- // Setup the reference on the cloned wire
- final RuntimeComponentReference ref = new RuntimeComponentReferenceImpl();
- ref.setComponent((RuntimeComponent) targetComponent);
- ref.setInterfaceContract(targetServiceIfaceContract);
- ((EndpointReferenceImpl) this.wire.getSource()).setContract(ref);
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public void writeExternal(ObjectOutput out) throws IOException {
- super.writeExternal(out);
- out.writeObject(this.callbackID);
- out.writeObject(this.convID);
- out.writeUTF(this.resolvedEndpoint.getURI());
- }
-}
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