1 files changed, 113 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.0.1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java b/sca-java-1.x/branches/sca-java-1.0.1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java
new file mode 100644
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+++ b/sca-java-1.x/branches/sca-java-1.0.1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java
@@ -0,0 +1,113 @@
+/*
+ * 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.databinding.wire;
+
+import java.util.IdentityHashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.databinding.DataBinding;
+import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+
+public class PassByValueInterceptor implements Interceptor {
+
+    private DataBindingExtensionPoint dataBindings;
+    private Operation operation;
+
+    private Invoker nextInvoker;
+
+    public PassByValueInterceptor(DataBindingExtensionPoint dataBindings, Operation operation) {
+        this.dataBindings = dataBindings;
+        this.operation = operation;
+    }
+
+    public Message invoke(Message msg) {
+        Object obj = msg.getBody();
+        msg.setBody(copy((Object[])obj));
+
+        Message resultMsg = nextInvoker.invoke(msg);
+
+        if (!msg.isFault() && operation.getOutputType() != null) {
+            String dataBindingId = operation.getOutputType().getDataBinding();
+            DataBinding dataBinding = dataBindings.getDataBinding(dataBindingId);
+            resultMsg.setBody(copy(resultMsg.getBody(), dataBinding));
+        }
+        return resultMsg;
+    }
+
+    public Object[] copy(Object[] args) {
+        if (args == null) {
+            return null;
+        }
+        Object[] copiedArgs = new Object[args.length];
+        Map<Object, Object> map = new IdentityHashMap<Object, Object>();
+        for (int i = 0; i < args.length; i++) {
+            if (args[i] == null) {
+                copiedArgs[i] = null;
+            } else {
+                Object copiedArg = map.get(args[i]);
+                if (copiedArg != null) {
+                    copiedArgs[i] = copiedArg;
+                } else {
+                    String dataBindingId = operation.getInputType().getLogical().get(i).getDataBinding();
+                    DataBinding dataBinding = dataBindings.getDataBinding(dataBindingId);
+                    copiedArg = copy(args[i], dataBinding);
+                    map.put(args[i], copiedArg);
+                    copiedArgs[i] = copiedArg;
+                }
+            }
+        }
+        return copiedArgs;
+    }
+
+    public Object copy(Object arg, DataBinding argDataBinding) {
+        if (arg == null) {
+            return null;
+        }
+        Object copiedArg;
+        if (argDataBinding != null) {
+            copiedArg = argDataBinding.copy(arg);
+        } else {
+            copiedArg = arg;
+            DataType<?> dataType = dataBindings.introspectType(arg);
+            if (dataType != null) {
+                DataBinding binding = dataBindings.getDataBinding(dataType.getDataBinding());
+                if (binding != null) {
+                    copiedArg = binding.copy(arg);
+                }
+            }
+            // FIXME: What to do if it's not recognized?
+        }
+        return copiedArg;
+    }
+
+    public Invoker getNext() {
+        return nextInvoker;
+    }
+
+    public void setNext(Invoker next) {
+        this.nextInvoker = next;
+    }
+
+}