ChannelInterceptor which allows transformation on send or receive from a channel

org.springframework.integration/src/main/java/org/springframework/integration/transformer/MessageTransformingChannelInterceptor.java

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+/*
+ * Copyright 2002-2008 the original author or authors.
+ *
+ * Licensed 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.springframework.integration.transformer;
+
+import org.springframework.integration.channel.ChannelInterceptor;
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.channel.interceptor.ChannelInterceptorAdapter;
+import org.springframework.integration.message.Message;
+
+/**
+ * a {@link ChannelInterceptor} which allows the application of a {@link MessageTransformer} on either send or receive to a channel
+ * @author Jonas Partner
+ * 
+ */
+public class MessageTransformingChannelInterceptor extends ChannelInterceptorAdapter {
+
+	private boolean convertOnSend = true;
+
+	private final MessageTransformer transfomer;
+
+	public MessageTransformingChannelInterceptor(MessageTransformer transformer) {
+		this.transfomer = transformer;
+	}
+
+	public boolean getConvertOnSend() {
+		return convertOnSend;
+	}
+
+	public void setConvertOnSend(boolean convertOnSend) {
+		this.convertOnSend = convertOnSend;
+	}
+
+	@Override
+	public void postSend(Message<?> message, MessageChannel channel, boolean sent) {
+		if(convertOnSend){
+			transfomer.transform(message);
+		}
+	}
+
+	@Override
+	public void postReceive(Message<?> message, MessageChannel channel) {
+		if(!convertOnSend){
+			transfomer.transform(message);
+		}
+	}
+
+}