001 /**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements. See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.camel.builder;
019
020 import org.apache.camel.Exchange;
021 import org.apache.camel.Expression;
022 import org.apache.camel.Processor;
023
024 /**
025 * A builder of a number of different {@link Processor} implementations
026 *
027 * @version $Revision: 1.1 $
028 */
029 public class ProcessorBuilder {
030
031 /**
032 * Creates a processor which sets the body of the IN message to the value of the expression
033 */
034 public static Processor setBody(final Expression expression) {
035 return new Processor() {
036 public void process(Exchange exchange) {
037 Object newBody = expression.evaluate(exchange);
038 exchange.getIn().setBody(newBody);
039 }
040
041 @Override
042 public String toString() {
043 return "setBody(" + expression + ")";
044 }
045 };
046 }
047
048 /**
049 * Creates a processor which sets the body of the IN message to the value of the expression
050 */
051 public static Processor setOutBody(final Expression expression) {
052 return new Processor() {
053 public void process(Exchange exchange) {
054 Object newBody = expression.evaluate(exchange);
055 exchange.getOut().setBody(newBody);
056 }
057
058 @Override
059 public String toString() {
060 return "setOutBody(" + expression + ")";
061 }
062 };
063 }
064
065 /**
066 * Sets the header on the IN message
067 */
068 public static Processor setHeader(final String name, final Expression expression) {
069 return new Processor() {
070 public void process(Exchange exchange) {
071 Object value = expression.evaluate(exchange);
072 exchange.getIn().setHeader(name, value);
073 }
074
075 @Override
076 public String toString() {
077 return "setHeader(" + name + ", " + expression + ")";
078 }
079 };
080 }
081
082 /**
083 * Sets the header on the OUT message
084 */
085 public static Processor setOutHeader(final String name, final Expression expression) {
086 return new Processor() {
087 public void process(Exchange exchange) {
088 Object value = expression.evaluate(exchange);
089 exchange.getOut().setHeader(name, value);
090 }
091
092 @Override
093 public String toString() {
094 return "setOutHeader(" + name + ", " + expression + ")";
095 }
096 };
097 }
098
099 /**
100 * Sets the property on the exchange
101 */
102 public static Processor setProperty(final String name, final Expression expression) {
103 return new Processor() {
104 public void process(Exchange exchange) {
105 Object value = expression.evaluate(exchange);
106 exchange.setProperty(name, value);
107 }
108
109 @Override
110 public String toString() {
111 return "setProperty(" + name + ", " + expression + ")";
112 }
113 };
114 }
115 }