1 files changed, 289 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointReferenceImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointReferenceImpl.java
new file mode 100644
index 0000000000..ac0c7c93a8
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointReferenceImpl.java
@@ -0,0 +1,289 @@
+/*
+ * 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.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.builder.ContractBuilder;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySubject;
+
+/**
+ * The assembly model object for an endpoint.
+ *
+ * @version $Rev$ $Date$
+ */
+public class EndpointReferenceImpl implements EndpointReference {
+    private static final long serialVersionUID = 8838066441709300972L;
+
+    protected transient ExtensionPointRegistry registry;
+    protected transient BuilderExtensionPoint builders;
+    protected transient ContractBuilder contractBuilder;    
+    protected boolean unresolved = true;
+    protected String uri;
+    protected String deployedURI;
+    protected Component component;
+    protected ComponentReference reference;
+    protected Binding binding;
+    protected List<PolicySet> policySets = new ArrayList<PolicySet>();
+    protected List<Intent> requiredIntents = new ArrayList<Intent>();
+    protected InterfaceContract interfaceContract;
+    protected Status status = Status.NOT_CONFIGURED;
+
+    // the target of the endpoint reference
+    protected Endpoint targetEndpoint;
+
+    // callback endpoint that messages across this reference
+    // will be directed toward
+    protected Endpoint callbackEndpoint;
+
+    protected EndpointReferenceImpl(ExtensionPointRegistry registry) {
+        this.registry = registry;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        EndpointReference cloned = (EndpointReference)super.clone();
+
+        if (targetEndpoint != null) {
+            cloned.setTargetEndpoint((Endpoint)targetEndpoint.clone());
+        }
+
+        return cloned;
+    }
+
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean unresolved) {
+        this.unresolved = unresolved;
+    }
+
+    public Component getComponent() {
+        resolve();
+        return component;
+    }
+
+    public void setComponent(Component component) {
+        this.component = component;
+        reset();
+    }
+
+    public ComponentReference getReference() {
+        resolve();
+        return reference;
+    }
+
+    public void setReference(ComponentReference reference) {
+        this.reference = reference;
+        reset();
+    }
+
+    public Binding getBinding() {
+        resolve();
+        return binding;
+    }
+
+    public void setBinding(Binding binding) {
+        this.binding = binding;
+        reset();
+    }
+
+    public Endpoint getTargetEndpoint() {
+        resolve();
+        return targetEndpoint;
+    }
+
+    public void setTargetEndpoint(Endpoint targetEndpoint) {
+        this.targetEndpoint = targetEndpoint;
+        reset();
+    }
+
+    public InterfaceContract getComponentReferenceInterfaceContract() {
+        resolve();
+        if (interfaceContract == null && reference != null) {
+            interfaceContract = reference.getInterfaceContract();
+        }
+        return interfaceContract;
+    }
+
+    public void setInterfaceContract(InterfaceContract interfaceContract) {
+        this.interfaceContract = interfaceContract;
+        reset();
+    }
+
+    public List<PolicySet> getPolicySets() {
+        resolve();
+        return policySets;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        resolve();
+        return requiredIntents;
+    }
+
+    public ExtensionType getExtensionType() {
+        getBinding();
+        if (binding instanceof PolicySubject) {
+            return ((PolicySubject)binding).getExtensionType();
+        }
+        return null;
+    }
+
+    public void setExtensionType(ExtensionType type) {
+        throw new UnsupportedOperationException();
+    }
+
+    public Endpoint getCallbackEndpoint() {
+        resolve();
+        return callbackEndpoint;
+    }
+
+    public void setCallbackEndpoint(Endpoint callbackEndpoint) {
+        this.callbackEndpoint = callbackEndpoint;
+        reset();
+    }
+    
+    public String toStringWithoutHash() {
+        StringBuffer output = new StringBuffer("EndpointReference: ");
+
+        if (getURI() != null) {
+            output.append(" URI = ").append(getURI());
+        }
+
+        output.append(" ").append(status);
+
+        if (targetEndpoint != null) {
+            output.append(" Target = ").append(targetEndpoint);
+        }
+
+        return output.toString();
+    }
+
+    public String toString() {
+        return "(@" + this.hashCode() + ")" + toStringWithoutHash();
+    }
+
+    public String getURI() {
+        if (uri == null) {
+            if (component != null && reference != null && binding != null) {
+                String bindingName = binding.getName();
+                if (bindingName == null) {
+                    bindingName = reference.getName();
+                }
+                uri = component.getURI() + "#reference-binding(" + reference.getName() + "/" + bindingName + ")";
+            } else if (component != null && reference != null) {
+                uri = component.getURI() + "#reference(" + reference.getName() + ")";
+            } else if (component != null) {
+                uri = component.getURI();
+            }
+        }
+        return uri;
+    }
+
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    protected void resolve() {
+    }
+
+    protected void reset() {
+        this.uri = null;
+    }
+
+    public void setExtensionPointRegistry(ExtensionPointRegistry registry) {
+        this.registry = registry;
+    }
+
+    public Status getStatus() {
+        return status;
+    }
+
+    public void setStatus(Status status) {
+        this.status = status;
+    }
+    
+    @Override
+    public String getDeployedURI() {
+        String targetURI = deployedURI;
+        if (targetURI != null) {
+            return targetURI;
+        }
+        if (getTargetEndpoint() != null) {
+            targetURI = getTargetEndpoint().getDeployedURI();
+        }
+        if (targetURI != null) {
+            return targetURI;
+        }
+        if (binding != null) {
+            targetURI = binding.getURI();
+        }
+        return targetURI;
+    }
+    
+    @Override
+    public void setDeployedURI(String deployedURI) {
+        this.deployedURI = deployedURI;
+    }
+    
+    /**
+     * Indicates whether this EndpointReference is connected to a target service which is asynchronous.
+     * This can be marked in one of 3 ways:
+     * - the EndpointReference has the "asyncInvocation" intent set
+     * - the EndpointReference has a name ending with "_asyncCallback"
+     * - there is a target Endpoint configured that itself is marked as async invocation
+     * @return - true if the service is asynchronous invocation, false otherwise
+     */
+    public boolean isAsyncInvocation() {
+        if (reference != null && reference.getName().endsWith("_asyncCallback")){
+            // this is a response reference at the service component so don't create a
+            // response service. The response service will be at the reference component
+            return false;
+        } // end if 
+        
+        // Check if the EndpointReference is explicitly marked with the asyncInvocation intent
+        for(Intent intent : getRequiredIntents()){
+            if (intent.getName().getLocalPart().equals("asyncInvocation")){
+                return true;
+            } // end if 
+        } // end for
+        
+        // Check if the target Endpoint is marked as asyncInvocation
+        if( targetEndpoint != null ) {
+        	if (targetEndpoint.isAsyncInvocation()) {
+        		return true;
+			} // end if
+        } // end if
+        return false;
+    } // end method isAsyncInvocation
+    
+} // end class EndpointReferenceImpl