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: 709613 $
031 */
032 @Converter
033 public class CamelConverter {
034
035 @Converter
036 public Processor toProcessor(final Predicate 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 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 }