1 files changed, 84 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/CopyHelperImpl.java b/sdo-java/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/CopyHelperImpl.java
new file mode 100644
index 0000000000..d768076ecb
--- /dev/null
+++ b/sdo-java/branches/sdo-1.0-incubating/impl/src/main/java/org/apache/tuscany/sdo/helper/CopyHelperImpl.java
@@ -0,0 +1,84 @@
+/**
+ *
+ *  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.sdo.helper;
+
+
+import org.eclipse.emf.ecore.EAttribute;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.util.EcoreUtil.Copier;
+
+import commonj.sdo.ChangeSummary;
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.CopyHelper;
+
+
+/**
+ * A helper for copying DataObjects.
+ */
+public class CopyHelperImpl implements CopyHelper
+{
+  public DataObject copyShallow(DataObject dataObject)
+  {
+    Copier copier = new Copier()
+      {
+        protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject)
+        {
+        }
+
+        protected void copyAttribute(EAttribute eAttribute, EObject eObject, EObject copyEObject) {
+            if(("ChangeSummaryType".equals(eAttribute.getEType().getName()) && "commonj.sdo".equals(eAttribute.getEType().getEPackage().getNsURI()))) {
+                boolean isLogging = ((ChangeSummary)eObject.eGet(eAttribute)).isLogging();
+                ChangeSummary destSum = (ChangeSummary)copyEObject.eGet(eAttribute);
+                if(isLogging) {
+                    if(!destSum.isLogging()) destSum.beginLogging();
+                } else {
+                    if(destSum.isLogging()) destSum.endLogging();
+                }
+            } else {
+                super.copyAttribute(eAttribute, eObject, copyEObject);
+            }
+        }
+      };
+    EObject result = copier.copy((EObject)dataObject);
+    copier.copyReferences();
+    return (DataObject)result;
+  }
+
+  public DataObject copy(DataObject dataObject)
+  {
+    Copier copier = new Copier()
+    {
+
+        protected void copyAttribute(EAttribute eAttribute, EObject eObject, EObject copyEObject) {
+            if(("ChangeSummaryType".equals(eAttribute.getEType().getName()) && "commonj.sdo".equals(eAttribute.getEType().getEPackage().getNsURI()))) {
+                throw new UnsupportedOperationException("This will be implemented when change summary serialization/deserialization is in place");
+            } else {
+                super.copyAttribute(eAttribute, eObject, copyEObject);
+            }
+        }
+    };
+    EObject result = copier.copy((EObject)dataObject);
+    copier.copyReferences();
+    return (DataObject)result;
+  }
+
+
+}