1 files changed, 153 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1-RC3/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java b/tags/java/sca/1.5.1-RC3/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java
new file mode 100644
index 0000000000..7122217b8b
--- /dev/null
+++ b/tags/java/sca/1.5.1-RC3/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java
@@ -0,0 +1,153 @@
+/*
+ * 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.saxon;
+
+import java.lang.reflect.Array;
+
+import net.sf.saxon.om.Item;
+import net.sf.saxon.om.NodeInfo;
+import net.sf.saxon.trans.XPathException;
+import net.sf.saxon.value.Value;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sca.databinding.saxon.collection.ItemList;
+
+/**
+ * Transforms each object contained in the ItemList object.
+ * 
+ * 	If the object type is the same as the target type, it is not transformed.
+ * 
+ * 	If the object is a NodeInfo, it's transformed to a DataObject.
+ * 
+ * 	If the object is a Value, it's transformed to a Java object.
+ * 
+ * If the target type is not an array, the first transformed object is returned.
+ * 
+ * 	If the first transformed object type is not a target type, then a
+ * 	TransformException is thrown
+ * 
+ * If the target type is an array, a array of this type is created containing
+ * all transformed objects and it is returned
+ * 
+ * 	If any transformed object is not a target type, then a TransformException is
+ * 	thrown
+ * 
+ * @version $Rev: 659284 $ $Date: 2008-05-22 14:26:18 -0800 (Thu, 22 May 2008) $
+ */
+public class ItemList2ObjectTransformer extends BaseTransformer<ItemList, Object> implements
+    PullTransformer<ItemList, Object> {
+
+    private NodeInfo2DataObjectTransformer nodeInfo2DataObjectTransformer = new NodeInfo2DataObjectTransformer();
+
+    public ItemList2ObjectTransformer() {
+    }
+
+    @Override
+    protected Class<ItemList> getSourceType() {
+        return ItemList.class;
+    }
+
+    @Override
+    protected Class<Object> getTargetType() {
+        return Object.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 30 + nodeInfo2DataObjectTransformer.getWeight();
+    }
+
+    public Object transform(ItemList source, TransformationContext context) {
+
+        if (source.size() == 0) {
+            return null;
+        }
+
+        Class<?> targetType = context.getTargetDataType().getPhysical();
+
+        if (targetType.isArray()) {
+            int i = 0;
+            Class<?> componentClass = targetType.getComponentType();
+            Object[] result = (Object[])Array.newInstance(componentClass, source.size());
+
+            try {
+
+                if (componentClass.isAssignableFrom(NodeInfo.class) || componentClass.isAssignableFrom(Value.class)) {
+
+                    for (Item item : source) {
+                        result[i++] = item;
+                    }
+
+                } else {
+
+                    for (Item item : source) {
+
+                        if (item instanceof NodeInfo) {
+                            result[i] = nodeInfo2DataObjectTransformer.transform((NodeInfo)item, context);
+
+                        } else if (item instanceof Value) {
+                            result[i] = Value.convert(item);
+
+                        } else {
+                            result[i] = item;
+                        }
+
+                        i++;
+
+                    }
+
+                }
+
+            } catch (ArrayStoreException ex) {
+                throw new TransformationException(ex);
+
+            } catch (XPathException ex) {
+                throw new TransformationException(ex);
+            }
+
+            return result;
+
+        } else {
+            Item item = source.iterator().next();
+
+            if (item.getClass().isAssignableFrom(targetType)) {
+                return item;
+
+            } else if (item instanceof NodeInfo) {
+                return nodeInfo2DataObjectTransformer.transform((NodeInfo)item, context);
+
+            } else {
+
+                try {
+                    return Value.convert(item);
+
+                } catch (XPathException e) {
+                    throw new TransformationException(e);
+                }
+
+            }
+
+        }
+
+    }
+
+}