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.ExpressionClause;
027    import org.apache.camel.builder.ProcessorBuilder;
028    import org.apache.camel.model.language.ExpressionDefinition;
029    import org.apache.camel.spi.RouteContext;
030    import org.apache.camel.util.ObjectHelper;
031    
032    /**
033     * Represents an XML <setOutHeader/> element
034     */
035    @XmlRootElement(name = "setOutHeader")
036    @XmlAccessorType(XmlAccessType.FIELD)
037    public class SetOutHeaderDefinition extends ExpressionNode {
038        @XmlAttribute(required = true)
039        private String headerName;
040        
041        public SetOutHeaderDefinition() {
042        }
043    
044        public SetOutHeaderDefinition(String headerName, ExpressionDefinition expression) {
045            super(expression);
046            setHeaderName(headerName);
047        }
048    
049        public SetOutHeaderDefinition(String headerName, Expression expression) {
050            super(expression);
051            setHeaderName(headerName);        
052        }
053    
054        @Override
055        public String toString() {
056            return "SetOutHeader[" + getHeaderName() + ", " + getExpression() + "]";
057        }
058    
059        @Override
060        public String getShortName() {
061            return "setOutHeader";
062        }
063    
064        @Override
065        public Processor createProcessor(RouteContext routeContext) throws Exception {
066            ObjectHelper.notNull(getHeaderName(), "headerName", this);
067            Expression expr = getExpression().createExpression(routeContext);
068            return ProcessorBuilder.setOutHeader(getHeaderName(), expr);
069        }
070    
071        public void setHeaderName(String headerName) {
072            this.headerName = headerName;
073        }
074    
075        public String getHeaderName() {
076            return headerName;
077        }
078        
079        // Fluent API
080        //-------------------------------------------------------------------------
081        /**
082         * Set the expression that SetOutHeaderType will use
083         * @return the builder
084         */
085        public ExpressionClause<SetOutHeaderDefinition> expression() {
086            return ExpressionClause.createAndSetExpression(this);
087        }
088    }