diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC4/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC4/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/tags/java/sca/2.0-M3-RC4/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java b/tags/java/sca/2.0-M3-RC4/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java deleted file mode 100644 index c349e43615..0000000000 --- a/tags/java/sca/2.0-M3-RC4/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/CallbackReferenceImpl.java +++ /dev/null @@ -1,244 +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.Endpoint;
-import org.apache.tuscany.sca.assembly.EndpointReference;
-import org.apache.tuscany.sca.assembly.OptimizableBinding;
-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.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 Endpoint resolvedEndpoint;
- private Object convID;
-
- public static CallbackReferenceImpl newInstance(Class interfaze,
- ProxyFactory proxyFactory,
- List<RuntimeWire> wires) {
- if (ThreadMessageContext.getMessageContext().getFrom().getCallbackEndpoint() != 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().toString());
- }
- resolvedEndpoint = msgContext.getFrom().getCallbackEndpoint();
- }
-
- @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 Endpoint getResolvedEndpoint() {
- return resolvedEndpoint;
- }
-
- private RuntimeWire selectCallbackWire(Message msgContext) {
- // look for callback binding with same name as service binding
- Endpoint 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.getEndpointReference().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.getEndpointReference().getBinding().getClass() == to.getBinding().getClass()) {
- return wire;
- }
- }
-
- // no suitable callback wire was found
- return null;
- }
-
- private RuntimeWire cloneAndBind(RuntimeWire wire) {
- RuntimeWire boundWire = null;
- if (resolvedEndpoint != null) {
- boundWire = ((RuntimeWireImpl)wire).lookupCache(resolvedEndpoint);
- if (boundWire != null) {
- return boundWire;
- }
- try {
- // TODO - EPR - is this correct?
-
- // Fluff up a new response wire based on the callback endpoint
- RuntimeComponentReference ref =
- bind((RuntimeComponentReference)wire.getEndpointReference().getReference(),
- resolvedEndpoint);
-
- boundWire = ref.getRuntimeWires().get(0);
-
- Binding binding = wire.getEndpointReference().getBinding();
-
- ((RuntimeWireImpl)wire).addToCache(resolvedEndpoint, boundWire);
- } catch (CloneNotSupportedException e) {
- // will not happen
- }
- }
- return boundWire;
- }
-
- // TODO - EPR - why static?
- private static RuntimeComponentReference bind(RuntimeComponentReference reference,
- Endpoint callbackEndpoint) throws CloneNotSupportedException {
-
- // clone the callback reference ready to configure it for this callback endpoint
- RuntimeComponentReference ref = (RuntimeComponentReference)reference.clone();
- ref.getTargets().clear();
- ref.getBindings().clear();
- ref.getEndpointReferences().clear();
-
- // no access to the assembly factory so clone an existing epr
- EndpointReference callbackEndpointReference = (EndpointReference)reference.getEndpointReferences().get(0).clone();
-
- callbackEndpointReference.setReference(ref);
- callbackEndpointReference.setTargetEndpoint(callbackEndpoint);
- callbackEndpointReference.setUnresolved(true);
-
- // The callback endpoint will be resolved with the registry
- // when the wire chains are created
- ref.getEndpointReferences().add(callbackEndpointReference);
-
- return ref;
- }
-
- /**
- * {@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 = assemblyFactory.createEndpoint();
- this.resolvedEndpoint.setComponent(targetComponent);
- this.resolvedEndpoint.setService(targetService);
- this.resolvedEndpoint.setInterfaceContract(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());
- }
-
- // TODO - EPR - This doesn't sound right to me.
- // Setup the reference on the cloned wire
- final RuntimeComponentReference ref = new RuntimeComponentReferenceImpl();
- ref.setComponent((RuntimeComponent) targetComponent);
- ref.setInterfaceContract(targetServiceIfaceContract);
- ((EndpointReference) this.wire.getEndpointReference()).setReference(ref);
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public void writeExternal(ObjectOutput out) throws IOException {
- super.writeExternal(out);
- out.writeObject(this.callbackID);
- out.writeObject(this.convID);
-
- // TODO - EPR - What to do about URI?
- out.writeUTF(this.resolvedEndpoint.getBinding().getURI());
- }
-}
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