INT-1377 removed unused AbstractSingleChannelNameRouter class

spring-integration-core/src/main/java/org/springframework/integration/router/AbstractSingleChannelNameRouter.java

@@ -1,47 +0,0 @@
-/*
- * Copyright 2002-2010 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.router;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.springframework.integration.Message;
-
-/**
- * Extends {@link AbstractMessageRouter} to support router
- * implementations that always return a single channel name (or null).
- * 
- * @author Mark Fisher
- */
-public abstract class AbstractSingleChannelNameRouter extends AbstractMessageRouter {
-
-	@Override
-	protected final List<Object> getChannelIdentifiers(Message<?> message) {
-		List<Object> channelList = new ArrayList<Object>();
-		String channelName = determineTargetChannelName(message);
-		if(channelName != null){
-			channelList.add(channelName);
-		}
-		return channelList;
-	}
-
-	/**
-	 * Subclasses must implement this method to return the channel name.
-	 */
-	protected abstract String determineTargetChannelName(Message<?> message);
-
-}