1 files changed, 92 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/types/util/UnionTypeHelper.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/types/util/UnionTypeHelper.java
new file mode 100644
index 0000000000..df2e833fcd
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/provider/types/util/UnionTypeHelper.java
@@ -0,0 +1,92 @@
+/*
+ * 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.binding.corba.provider.types.util;
+
+import java.lang.reflect.Field;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.binding.corba.provider.types.TypeTreeNode;
+import org.apache.tuscany.sca.binding.corba.provider.types.UnionAttributes;
+import org.omg.CORBA.portable.InputStream;
+import org.omg.CORBA.portable.OutputStream;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class UnionTypeHelper implements TypeHelper {
+
+    private static final Logger logger = Logger.getLogger(UnionTypeHelper.class.getName());
+    
+    public Object read(TypeTreeNode node, InputStream is) {
+        Object result = null;
+        try {
+            int discriminator = is.read_long();
+            UnionAttributes attrs = (UnionAttributes)node.getAttributes();
+            String childName = attrs.getOptionsMapping().get(discriminator);
+            if (childName == null) {
+                // get default if option numbers field not found
+                childName = attrs.getDefaultOptionName();
+            }
+            result = node.getJavaClass().newInstance();
+            Field discField = result.getClass().getDeclaredField(attrs.getDiscriminatorName());
+            discField.setAccessible(true);
+            discField.set(result, discriminator);
+            for (int i = 0; i < node.getChildren().length; i++) {
+                if (node.getChildren()[i].getName().equals(childName)) {
+                    Object unionValue = TypeHelpersProxy.read(node.getChildren()[i], is);
+                    Field childField = result.getClass().getDeclaredField(childName);
+                    childField.setAccessible(true);
+                    childField.set(result, unionValue);
+                    break;
+                }
+            }
+        } catch (Exception e) {
+            logger.log(Level.WARNING, "Exception during reading CORBA union data", e);
+        }
+        return result;
+    }
+
+    public void write(TypeTreeNode node, OutputStream os, Object data) {
+        try {
+            UnionAttributes attrs = (UnionAttributes)node.getAttributes();
+            Field discriminatorField = data.getClass().getDeclaredField(attrs.getDiscriminatorName());
+            discriminatorField.setAccessible(true);
+            int discriminator = discriminatorField.getInt(data);
+            os.write_long(discriminator);
+            String childName = attrs.getOptionsMapping().get(discriminator);
+            if (childName == null) {
+                // get default if option numbers field not found
+                childName = attrs.getDefaultOptionName();
+            }
+            for (int i = 0; i < node.getChildren().length; i++) {
+                if (node.getChildren()[i].getName().equals(childName)) {
+                    Field childField = data.getClass().getDeclaredField(childName);
+                    childField.setAccessible(true);
+                    TypeHelpersProxy.write(node.getChildren()[i], os, childField.get(data));
+                    break;
+                }
+            }
+        } catch (Exception e) {
+            logger.log(Level.WARNING, "Exception during writing CORBA union data", e);
+        }
+    }
+
+}