removed BanksChannelSelector since it's no longer used

spring-integration-samples/loan-broker/src/main/java/org/springframework/integration/loanbroker/BanksChannelSelector.java

@@ -1,78 +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.loanbroker;
-
-import java.util.Map;
-import java.util.Set;
-
-import org.apache.log4j.Logger;
-
-import org.springframework.expression.Expression;
-import org.springframework.expression.ExpressionParser;
-import org.springframework.expression.spel.standard.SpelExpressionParser;
-import org.springframework.expression.spel.support.StandardEvaluationContext;
-import org.springframework.integration.core.Message;
-
-/**
- * Will select channel names from the map of banks based on provided SpEL expression.<br>
- * For example:<br><pre>
- * headers['CREDIT_SCORE'].score > 780 ? #banks.?[value.equals('premier')].keySet()
- *									   : #banks.?[value.equals('secondary')].keySet()
- * </pre><br>
- * The above SpEL expression upon evaluation will return the list of premier bank 
- * channels if customer's credit score (retrieved from message header 'CREDIT_SCORE') is above 780. 
- * 
- * @author Oleg Zhurakousky
- * @author Mark Fisher
- */
-public class BanksChannelSelector {
-
-	private static Logger logger = Logger.getLogger(BanksChannelSelector.class);
-
-	private static final ExpressionParser parser = new SpelExpressionParser();
-
-
-	private volatile Expression routingExpression;
-
-	private final StandardEvaluationContext evaluationContext = new StandardEvaluationContext();
-
-
-	/**
-	 * @param bankChannelPool
-	 */
-	public BanksChannelSelector(Map<String, String> bankChannelPool) {
-		this.evaluationContext.setVariable("banks", bankChannelPool);
-	}
-
-	/**
-	 * @param routingExpression
-	 */
-	public void setRoutingExpression(String routingExpression) {
-		this.routingExpression = parser.parseExpression(routingExpression);
-	}
-
-	/**
-	 * @param message
-	 */
-	@SuppressWarnings("unchecked")
-	public Set<String> selectBankChannels(Message<?> message) {
-		Set<String> bankChannels = (Set<String>) routingExpression.getValue(this.evaluationContext, message);
-		logger.debug("selected bank channels: " + bankChannels);
-		return bankChannels;
-	}
-
-}