1 files changed, 142 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractImpl.java
new file mode 100644
index 0000000000..692dc4743c
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractImpl.java
@@ -0,0 +1,142 @@
+/*
+ * 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.interfacedef.impl;
+
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+
+/**
+ * Represents an interface contract. InterfaceContractImpl
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.inheritfrom
+ */
+public abstract class InterfaceContractImpl implements InterfaceContract {
+    private Interface callInterface;
+    private Interface callbackInterface;
+
+    public Interface getCallbackInterface() {
+        return callbackInterface;
+    }
+
+    public Interface getInterface() {
+        return callInterface;
+    }
+
+    public void setCallbackInterface(Interface callbackInterface) {
+        this.callbackInterface = callbackInterface;
+    }
+
+    public void setInterface(Interface callInterface) {
+        this.callInterface = callInterface;
+    }
+
+    public InterfaceContract makeUnidirectional(boolean isCallback) {
+        if (!isCallback && callbackInterface == null)
+            return this; // already a unidirectional forward interface contract
+
+        if (isCallback && callInterface == null)
+            return this; // already a unidirectional callback interface contract
+
+        // contract is bidirectional, so create a new unidirectional contract        
+        try {
+            InterfaceContract newContract = clone();
+            if (!isCallback) {
+                newContract.setCallbackInterface(null); // create unidirectional forward interface contract
+            } else {
+                newContract.setInterface(null); // create unidirectional callback interface contract
+            }
+            return newContract;
+        } catch (CloneNotSupportedException e) {
+            // will not happen
+            return null;
+        }
+    }
+
+    @Override
+    public InterfaceContractImpl clone() throws CloneNotSupportedException {
+        InterfaceContractImpl copy = (InterfaceContractImpl)super.clone();
+        if (this.callbackInterface != null) {
+            copy.callbackInterface = (Interface)this.callbackInterface.clone();
+        }
+        if (this.callInterface != null) {
+            copy.callInterface = (Interface)this.callInterface.clone();
+        }
+        return copy;
+    }
+
+    /**
+     * @see java.lang.Object#hashCode()
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((callInterface == null) ? 0 : callInterface.hashCode());
+        result = prime * result + ((callbackInterface == null) ? 0 : callbackInterface.hashCode());
+        return result;
+    }
+
+    /**
+     * @see java.lang.Object#equals(java.lang.Object)
+     */
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final InterfaceContractImpl other = (InterfaceContractImpl)obj;
+        if (callInterface == null) {
+            if (other.callInterface != null) {
+                return false;
+            }
+        } else if (!callInterface.equals(other.callInterface)) {
+            return false;
+        }
+        if (callbackInterface == null) {
+            if (other.callbackInterface != null) {
+                return false;
+            }
+        } else if (!callbackInterface.equals(other.callbackInterface)) {
+            return false;
+        }
+        return true;
+    }
+    
+    // By default there is no normalized contract
+    // as only Java needs it
+    public InterfaceContract getNormalizedWSDLContract() {
+        return null;
+    }
+    
+    // By default there is no normalized contract
+    // as only Java needs it
+    public void setNormalizedWSDLContract(
+            InterfaceContract wsdlInterfaceContract) {
+        // do nothing
+    }
+
+}