001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.converter; 018 019 import org.apache.camel.Converter; 020 import org.apache.camel.Exchange; 021 import org.apache.camel.Expression; 022 import org.apache.camel.Message; 023 import org.apache.camel.Predicate; 024 import org.apache.camel.Processor; 025 026 /** 027 * Some useful converters for Camel APIs such as to convert a {@link Predicate} or {@link Expression} 028 * to a {@link Processor} 029 * 030 * @version $Revision: 42197 $ 031 */ 032 @Converter 033 public class CamelConverter { 034 035 @Converter 036 public Processor toProcessor(final Predicate<Exchange> predicate) { 037 return new Processor() { 038 public void process(Exchange exchange) throws Exception { 039 boolean answer = predicate.matches(exchange); 040 Message out = exchange.getOut(); 041 out.copyFrom(exchange.getIn()); 042 out.setBody(answer); 043 } 044 }; 045 046 } 047 048 @Converter 049 public Processor toProcessor(final Expression<Exchange> expresion) { 050 return new Processor() { 051 public void process(Exchange exchange) throws Exception { 052 Object answer = expresion.evaluate(exchange); 053 Message out = exchange.getOut(); 054 out.copyFrom(exchange.getIn()); 055 out.setBody(answer); 056 } 057 }; 058 } 059 }