1 files changed, 174 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java
new file mode 100644
index 0000000000..ef46a2b3c7
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java
@@ -0,0 +1,174 @@
+/*
+ * 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.databinding.sdo;
+
+import java.lang.reflect.ParameterizedType;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.Collection;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.databinding.BaseDataBinding;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.databinding.XMLTypeHelper;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.apache.tuscany.sdo.api.SDOUtil;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Type;
+import commonj.sdo.helper.CopyHelper;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+/**
+ * SDO Databinding
+ * 
+ * @version $Rev$ $Date$
+ */
+public class SDODataBinding extends BaseDataBinding {
+    public static final String NAME = DataObject.class.getName();
+
+    public static final String ROOT_NAMESPACE = "commonj.sdo";
+    public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "dataObject");
+
+    private WrapperHandler<Object> wrapperHandler;
+    private XMLTypeHelper xmlTypeHelper;
+
+    public SDODataBinding( ExtensionPointRegistry registry ) {
+        super(NAME, DataObject.class);
+        SDOContextHelper.setRegistry( registry );
+        wrapperHandler = new SDOWrapperHandler();
+        xmlTypeHelper = new SDOTypeHelper();
+    }
+
+    @Override
+    public boolean introspect(DataType dataType, final Operation operation) {
+        Class javaType = dataType.getPhysical();
+        // Allow privileged access to read system properties. Requires PropertyPermission
+        // java.specification.version read in security policy.
+        final HelperContext context = AccessController.doPrivileged(new PrivilegedAction<HelperContext>() {
+            public HelperContext run() {
+                return SDOContextHelper.getHelperContext(operation);
+            }
+        });
+
+        final Type type = context.getTypeHelper().getType(javaType);
+        if (type == null) {
+            // FIXME: Need a better to test dynamic SDO
+            // TUSCANY-3298: get underlying element type for collections
+            boolean isMany = false;
+            if (Collection.class.isAssignableFrom(javaType)) {
+                java.lang.reflect.Type genericType = dataType.getGenericType();
+                if (genericType instanceof ParameterizedType) {
+                    java.lang.reflect.Type actualType = ((ParameterizedType)genericType).getActualTypeArguments()[0];
+                    if (actualType instanceof Class) {
+                        javaType = (Class)actualType;
+                        isMany = true;
+                    }
+                }
+            }            
+            if (DataObject.class.isAssignableFrom(javaType)) {
+                // Dynamic SDO
+                dataType.setDataBinding(getName());
+                // TUSCANY-3298: use XMLType many value to indicate a collection
+                Object logical = dataType.getLogical();
+                if (logical == null) {
+                    if (!isMany) {
+                        dataType.setLogical(XMLType.UNKNOWN);
+                    } else {
+                        XMLType xmlType = new XMLType(null, null);
+                        xmlType.setMany(true);
+                        dataType.setLogical(xmlType);
+                    }
+                } else if (logical instanceof XMLType && isMany) {
+                    ((XMLType)logical).setMany(true);
+                }
+                return true;
+            }
+            return false;
+        } 
+        if (type.isDataType()) {
+            // FIXME: Ignore simple types?
+            return false;
+        }
+
+        // Found a SDO type, replace the default context with a private one
+        AccessController.doPrivileged(new PrivilegedAction<Object>() {
+            public Object run() {
+                if (context == SDOContextHelper.getDefaultHelperContext()) {
+                    HelperContext newContext = SDOUtil.createHelperContext();
+                    SDOContextHelper.register(newContext, type);
+                    if (operation != null) {
+                        operation.getInputType().setMetaData(HelperContext.class, newContext);
+                    }
+                } else {
+                    SDOContextHelper.register(context, type);
+                }
+                return null;
+            }
+        });
+
+        String namespace = type.getURI();
+        String name = context.getXSDHelper().getLocalName(type);
+        QName xmlType = new QName(namespace, name);
+        dataType.setDataBinding(getName());
+        QName elementName = null;
+        Object logical = dataType.getLogical();
+        if (logical instanceof XMLType) {
+            elementName = ((XMLType)logical).getElementName();
+        }
+        dataType.setLogical(new XMLType(elementName, xmlType));
+
+        return true;
+    }
+
+    @Override
+    public WrapperHandler getWrapperHandler() {
+        return wrapperHandler;
+    }
+
+    @Override
+    public XMLTypeHelper getXMLTypeHelper() {
+        // return new SDOTypeHelper();
+        return xmlTypeHelper;
+    }
+
+    @Override
+    public Object copy(Object arg, DataType dataType, DataType targetDataType, Operation operation, Operation targetOperation) {
+        HelperContext context = SDOContextHelper.getHelperContext(operation);
+        CopyHelper copyHelper = context.getCopyHelper();
+        if (arg instanceof XMLDocument) {
+            XMLDocument document = (XMLDocument)arg;
+            DataObject dataObject = copyHelper.copy(document.getRootObject());
+            return context.getXMLHelper().createDocument(dataObject,
+                                                         document.getRootElementURI(),
+                                                         document.getRootElementName());
+        } else if (arg instanceof DataObject) {
+            return context.getCopyHelper().copy((DataObject)arg);
+        } else {
+            return super.copy(arg, dataType, targetDataType, operation, targetOperation);
+        }
+    }
+
+}