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.model;
018    
019    import javax.xml.bind.annotation.XmlAccessType;
020    import javax.xml.bind.annotation.XmlAccessorType;
021    import javax.xml.bind.annotation.XmlAttribute;
022    import javax.xml.bind.annotation.XmlRootElement;
023    
024    import org.apache.camel.Expression;
025    import org.apache.camel.Processor;
026    import org.apache.camel.builder.ExpressionBuilder;
027    import org.apache.camel.builder.ProcessorBuilder;
028    import org.apache.camel.model.language.ExpressionType;
029    import org.apache.camel.spi.RouteContext;
030    
031    /**
032     * Represents an XML <setHeader/> element
033     */
034    @XmlRootElement(name = "setHeader")
035    @XmlAccessorType(XmlAccessType.FIELD)
036    public class SetHeaderType extends ExpressionNode {
037        @XmlAttribute
038        private String headerName;
039        
040        public SetHeaderType() {
041        }
042    
043        public SetHeaderType(String headerName, ExpressionType expression) {
044            super(expression);
045            setHeaderName(headerName);
046        }
047    
048        public SetHeaderType(String headerName, Expression expression) {
049            super(expression);
050            setHeaderName(headerName);        
051        }
052    
053        public SetHeaderType(String headerName, String value) {
054            super(ExpressionBuilder.constantExpression(value));
055            setHeaderName(headerName);        
056        }   
057        
058        @Override
059        public String toString() {
060            return "SetHeader[" + getHeaderName() + ", " + getExpression() + "]";
061        }
062    
063        @Override
064        public String getShortName() {
065            return "setHeader";
066        }
067    
068        @Override
069        public Processor createProcessor(RouteContext routeContext) throws Exception {
070            Expression expr = getExpression().createExpression(routeContext);
071            return ProcessorBuilder.setHeader(getHeaderName(), expr);
072        }
073    
074        public void setHeaderName(String headerName) {
075            this.headerName = headerName;
076        }
077    
078        public String getHeaderName() {
079            return headerName;
080        }
081    }