1 files changed, 106 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java b/sca-java-1.x/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java
new file mode 100644
index 0000000000..78058a5969
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java
@@ -0,0 +1,106 @@
+/*
+ * 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.awt.Component;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * Helper class to get TypeHelper from the context
+ */
+public final class SDOContextHelper {
+    private SDOContextHelper() {
+    }
+
+    public static HelperContext getHelperContext(TransformationContext context) {
+        if (context == null || context.getMetadata() == null) {
+            return getDefaultHelperContext();
+        }
+        HelperContext helperContext = null;
+        Component composite = (Component)context.getMetadata().get(Component.class);
+        if (composite != null) {
+            // SDOHelperContext sdoContext =
+            // (SDOHelperContext)composite.getExtensions().get(HelperContext.class.getName());
+            // if (sdoContext != null) {
+            // helperContext = sdoContext.getHelperContext();
+            // }
+            // AtomicComponent child =
+            // (AtomicComponent)composite.getSystemChild(HelperContext.class.getName());
+            // try {
+            // helperContext = (HelperContext)child.getTargetInstance();
+            // } catch (TargetResolutionException e) {
+            // helperContext = null;
+            // }
+        }
+        if (helperContext == null) {
+            return getDefaultHelperContext();
+        } else {
+            return helperContext;
+        }
+    }
+
+    public static HelperContext getHelperContext(Composite model) {
+        HelperContext helperContext = null;
+        for (Object ext : model.getExtensions()) {
+            if (ext instanceof HelperContext) {
+                helperContext = (HelperContext)ext;
+                break;
+            }
+        }
+        if (helperContext == null) {
+            helperContext = SDOUtil.createHelperContext();
+            model.getExtensions().add(helperContext);
+        }
+
+        if (helperContext == null) {
+            helperContext = getDefaultHelperContext();
+        }
+
+        return helperContext;
+    }
+
+    protected static HelperContext getDefaultHelperContext() {
+        // SDOUtil.createHelperContext();
+        return HelperProvider.getDefaultContext();
+    }
+
+    public static QName getElement(DataType<?> dataType) {
+        Object logical = dataType.getLogical();
+        QName elementName = SDODataBinding.ROOT_ELEMENT;
+        if (logical instanceof XMLType) {
+            XMLType xmlType = (XMLType)logical;
+            QName element = xmlType.getElementName();
+            if (element != null) {
+                elementName = element;
+            }
+        }
+        return elementName;
+    }
+}