From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../sca/databinding/impl/PipedTransformer.java     | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/PipedTransformer.java

(limited to 'sca-java-2.x/branches/2.0/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/PipedTransformer.java')

diff --git a/sca-java-2.x/branches/2.0/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/PipedTransformer.java b/sca-java-2.x/branches/2.0/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/PipedTransformer.java
new file mode 100644
index 0000000000..a1a89005b3
--- /dev/null
+++ b/sca-java-2.x/branches/2.0/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/impl/PipedTransformer.java
@@ -0,0 +1,70 @@
+/*
+ * 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.impl;
+
+import org.apache.tuscany.sca.databinding.DataPipe;
+import org.apache.tuscany.sca.databinding.DataPipeTransformer;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.PushTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+
+/**
+ * A utility class to connect PushTransformer and DataPipe to create a
+ * PullTransformer
+ * 
+ * @param <S> Source type
+ * @param <I> Intermediate type
+ * @param <R> Result type
+ *
+ * @version $Rev$ $Date$
+ */
+public class PipedTransformer<S, I, R> implements PullTransformer<S, R> {
+    private PushTransformer<S, I> pusher;
+
+    private DataPipeTransformer<I, R> pipe;
+
+    /**
+     * @param pumper
+     * @param pipe
+     */
+    public PipedTransformer(PushTransformer<S, I> pumper, DataPipeTransformer<I, R> pipe) {
+        super();
+        this.pusher = pumper;
+        this.pipe = pipe;
+    }
+
+    public R transform(S source, TransformationContext context) {
+        DataPipe<I, R> dataPipe = pipe.newInstance();
+        pusher.transform(source, dataPipe.getSink(), context);
+        return dataPipe.getResult();
+    }
+
+    public String getSourceDataBinding() {
+        return pusher.getSourceDataBinding();
+    }
+
+    public String getTargetDataBinding() {
+        return pipe.getTargetDataBinding();
+    }
+
+    public int getWeight() {
+        return pusher.getWeight() + pipe.getWeight();
+    }
+
+}
-- 
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