diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
commit | a40e527938d76ba71f211da7e327adb50384ba69 (patch) | |
tree | cb8f99f1727122b040a3f0fbb6649292b6a74302 /sca-java-1.x/tags/1.5-RC0/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java | |
parent | 968721109881107520d7aefa91d7fcc0519d7739 (diff) |
Moving 1.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835157 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/1.5-RC0/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java')
-rw-r--r-- | sca-java-1.x/tags/1.5-RC0/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/ItemList2ObjectTransformer.java new file mode 100644 index 0000000000..7122217b8b --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/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);
+ }
+
+ }
+
+ }
+
+ }
+
+}
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