Add a binding.local which is the parts of the current sca binding for doing local only invocations. This is part of a peice of work to restructure the sca binding into separately configurable and pluggable pieces in order to give more flexibility in sca binding invocations

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1038579 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 418 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBinding.java b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBinding.java
new file mode 100644
index 0000000000..c69d61ec53
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBinding.java
@@ -0,0 +1,33 @@
+/*
+ * 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.binding.local;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.impl.BindingImpl;
+
+public class LocalBinding extends BindingImpl {
+
+    public static final QName TYPE = new QName(SCA11_TUSCANY_NS, "binding.local");
+
+    public LocalBinding() {
+        super(TYPE);
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingInvoker.java b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingInvoker.java
new file mode 100644
index 0000000000..c03abcb528
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingInvoker.java
@@ -0,0 +1,102 @@
+/*
+ * 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.binding.local;
+
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+/**
+ * The Local binding invoker
+ */
+public class LocalBindingInvoker implements Interceptor {
+    private InvocationChain chain;
+    private Mediator mediator;
+    private Operation sourceOperation;
+    private Operation targetOperation;
+    private boolean passByValue;
+    private RuntimeEndpoint ep;
+
+    /**
+     * Construct a SCABindingInvoker that delegates to the service invocaiton chain
+     */
+    public LocalBindingInvoker(InvocationChain chain, Operation sourceOperation, Mediator mediator, boolean passByValue, RuntimeEndpointReference epr) {
+        super();
+        this.chain = chain;
+        this.mediator = mediator;
+        this.sourceOperation = sourceOperation;
+        this.targetOperation = chain.getTargetOperation();
+        this.passByValue = passByValue;
+        this.ep = (RuntimeEndpoint)epr.getTargetEndpoint();
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.invocation.Interceptor#getNext()
+     */
+    public Invoker getNext() {
+        return chain.getHeadInvoker(Phase.SERVICE_POLICY);
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.invocation.Interceptor#setNext(org.apache.tuscany.sca.invocation.Invoker)
+     */
+    public void setNext(Invoker next) {
+        // NOOP
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.invocation.Invoker#invoke(org.apache.tuscany.sca.invocation.Message)
+     */
+    public Message invoke(Message msg) {
+
+        if (passByValue) {
+            msg.setBody(mediator.copyInput(msg.getBody(), sourceOperation, targetOperation));
+        }
+        
+        ep.getInvocationChains();
+        if ( !ep.getCallbackEndpointReferences().isEmpty() ) {
+            RuntimeEndpointReference asyncEPR = (RuntimeEndpointReference) ep.getCallbackEndpointReferences().get(0);
+            // Place a link to the callback EPR into the message headers...
+            msg.getHeaders().put("ASYNC_CALLBACK", asyncEPR );
+        } 
+
+        Message resultMsg = getNext().invoke(msg);
+
+        if (passByValue) {
+            // Note source and target operation swapped so result is in source class loader
+            if (resultMsg.isFault()) {
+                resultMsg.setFaultBody(mediator.copyFault(resultMsg.getBody(), sourceOperation, targetOperation));
+            } else {
+                if (sourceOperation.getOutputType() != null) {
+                    resultMsg.setBody(mediator.copyOutput(resultMsg.getBody(), sourceOperation, targetOperation));
+                }
+            }
+        }
+
+        return resultMsg;
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingProviderFactory.java b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingProviderFactory.java
new file mode 100644
index 0000000000..f93a2dd11b
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalBindingProviderFactory.java
@@ -0,0 +1,51 @@
+/*
+ * 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.binding.local;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+/**
+ * The factory for creating Local Binding providers
+ */
+public class LocalBindingProviderFactory implements BindingProviderFactory<LocalBinding> {
+    
+    private ExtensionPointRegistry extensionPoints;
+    
+    public LocalBindingProviderFactory(ExtensionPointRegistry extensionPoints) {
+        this.extensionPoints = extensionPoints;
+    } 
+    
+    public ReferenceBindingProvider createReferenceBindingProvider(RuntimeEndpointReference endpointReference) {
+        return  new LocalReferenceBindingProvider(extensionPoints, endpointReference);
+    }
+
+    public ServiceBindingProvider createServiceBindingProvider(RuntimeEndpoint endpoint) {
+        return new LocalServiceBindingProvider(extensionPoints, endpoint);
+    }
+
+    public Class<LocalBinding> getModelType() {
+        return LocalBinding.class;
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalReferenceBindingProvider.java b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalReferenceBindingProvider.java
new file mode 100644
index 0000000000..0573a68f22
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalReferenceBindingProvider.java
@@ -0,0 +1,135 @@
+/*
+ * 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.binding.local;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.interfacedef.Compatibility;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.provider.EndpointReferenceProvider;
+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.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceUnavailableException;
+
+/**
+ * The Local binding reference binding provider
+ */
+public class LocalReferenceBindingProvider implements EndpointReferenceProvider {
+
+    private RuntimeEndpointReference endpointReference;
+    private RuntimeComponent component;
+    private RuntimeComponentReference reference;
+    private LocalBinding binding;
+
+    private Mediator mediator;
+    private InterfaceContractMapper interfaceContractMapper;
+
+    public LocalReferenceBindingProvider(ExtensionPointRegistry extensionPoints, RuntimeEndpointReference endpointReference) {
+        this.endpointReference = endpointReference;
+        this.component = (RuntimeComponent)endpointReference.getComponent();
+        this.reference = (RuntimeComponentReference)endpointReference.getReference();
+        this.binding = (LocalBinding)endpointReference.getBinding();
+
+        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        this.mediator = utilities.getUtility(Mediator.class);
+        this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+    }
+
+    public InterfaceContract getBindingInterfaceContract() {
+        // Check if there is a target
+        RuntimeEndpoint endpoint = (RuntimeEndpoint)endpointReference.getTargetEndpoint();
+        if (endpoint != null) {
+            return endpoint.getComponentTypeServiceInterfaceContract();
+        } else {
+            return endpointReference.getComponentTypeReferenceInterfaceContract();
+        }
+    }
+
+    public boolean supportsOneWayInvocation() {
+        return false;
+    }
+
+    private Invoker getInvoker(RuntimeEndpointReference epr, Operation operation) {
+        Endpoint target = epr.getTargetEndpoint();
+        if (target != null) {
+            RuntimeComponentService service = (RuntimeComponentService)target.getService();
+            if (service != null) { // not a callback wire
+                InvocationChain chain = ((RuntimeEndpoint)target).getInvocationChain(operation);
+
+                boolean passByValue = false;
+                Operation targetOp = chain.getTargetOperation();
+                if (!operation.getInterface().isRemotable()) {
+                    if (interfaceContractMapper.isCompatibleByReference(operation, targetOp, Compatibility.SUBSET)) {
+                        passByValue = false;
+                    }
+                } else {
+                    boolean allowsPBR = false;
+                    if (allowsPBR && interfaceContractMapper.isCompatibleByReference(operation,
+                                                                                     targetOp,
+                                                                                     Compatibility.SUBSET)) {
+                        passByValue = false;
+                    } else if (interfaceContractMapper.isCompatibleByValue(operation, targetOp, Compatibility.SUBSET)) {
+                        passByValue = true;
+                    }
+                }
+                // it turns out that the chain source and target operations are the same, and are the operation 
+                // from the target, not sure if thats by design or a bug. The SCA binding invoker needs to know 
+                // the source and target class loaders so pass in the real source operation in the constructor 
+                return chain == null ? null : new LocalBindingInvoker(chain, operation, mediator, passByValue, epr);
+            }
+        }
+        return null;
+    }
+
+    public Invoker createInvoker(Operation operation) {
+        Invoker invoker = getInvoker(endpointReference, operation);
+        if (invoker == null) {
+            throw new ServiceUnavailableException(
+                                                  "Unable to create SCA binding invoker for local target " + component
+                                                      .getName()
+                                                      + " reference "
+                                                      + reference.getName()
+                                                      + " (bindingURI="
+                                                      + binding.getURI()
+                                                      + " operation="
+                                                      + operation.getName()
+                                                      + ")");
+        }
+        return invoker;
+    }
+
+    public void start() {
+    }
+
+    public void stop() {
+    }
+
+    public void configure() {
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalServiceBindingProvider.java b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalServiceBindingProvider.java
new file mode 100644
index 0000000000..5f8d9cd9fd
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalServiceBindingProvider.java
@@ -0,0 +1,59 @@
+/*
+ * 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.binding.local;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+/**
+ * The Local binding service binding provider
+ */
+public class LocalServiceBindingProvider implements ServiceBindingProvider {
+    private RuntimeEndpoint endpoint;
+    private RuntimeComponentService service;
+
+    public LocalServiceBindingProvider(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint) {
+        this.endpoint = endpoint;
+        this.service = (RuntimeComponentService)endpoint.getService();
+
+        // if there is potentially a wire to this service that crosses the node boundary
+        // then we need to create a remote endpoint 
+        if (service.getInterfaceContract().getInterface().isRemotable()) {
+            // TODO: should this throw some exception now for the local binding case?
+        }
+    }
+
+    public InterfaceContract getBindingInterfaceContract() {
+        return endpoint.getComponentTypeServiceInterfaceContract();
+    }
+
+    public boolean supportsOneWayInvocation() {
+        return false;
+    }
+
+    public void start() {
+    }
+
+    public void stop() {
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..584842b354
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# 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. 

+

+# Implementation class for the artifact processor extension

+org.apache.tuscany.sca.assembly.xml.DefaultBeanModelProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.1#binding.local,model=org.apache.tuscany.sca.binding.local.LocalBinding

diff --git a/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory
new file mode 100644
index 0000000000..ab36ae28b0
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-local-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory
@@ -0,0 +1,19 @@
+# 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. 

+

+# Implementation class for the binding extension

+org.apache.tuscany.sca.binding.local.LocalBindingProviderFactory;model=org.apache.tuscany.sca.binding.local.LocalBinding