| /** |
| * 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.camel.processor; |
| |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Expression; |
| import org.apache.camel.Message; |
| import org.apache.camel.Processor; |
| import org.apache.camel.util.CastUtils; |
| |
| /** |
| * A processor that sorts the expression using a comparator |
| */ |
| public class SortProcessor implements Processor { |
| |
| private final Expression expression; |
| private final Comparator<Object> comparator; |
| |
| public SortProcessor(Expression expression, Comparator<Object> comparator) { |
| this.expression = expression; |
| this.comparator = comparator; |
| } |
| |
| public void process(Exchange exchange) throws Exception { |
| Message in = exchange.getIn(); |
| |
| List<Object> list = CastUtils.cast(expression.evaluate(exchange, List.class)); |
| Collections.sort(list, comparator); |
| |
| if (exchange.getPattern().isOutCapable()) { |
| Message out = exchange.getOut(); |
| out.copyFrom(in); |
| out.setBody(list); |
| } else { |
| in.setBody(list); |
| } |
| } |
| |
| public String toString() { |
| return "Sort[" + expression + "]"; |
| } |
| } |
| |
| |