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.ExpressionDefinition; 029 import org.apache.camel.spi.Required; 030 import org.apache.camel.spi.RouteContext; 031 import org.apache.camel.util.ObjectHelper; 032 033 /** 034 * Represents an XML <setHeader/> element 035 */ 036 @XmlRootElement(name = "setHeader") 037 @XmlAccessorType(XmlAccessType.FIELD) 038 public class SetHeaderDefinition extends NoOutputExpressionNode { 039 @XmlAttribute(required = true) 040 private String headerName; 041 042 public SetHeaderDefinition() { 043 } 044 045 public SetHeaderDefinition(String headerName, ExpressionDefinition expression) { 046 super(expression); 047 setHeaderName(headerName); 048 } 049 050 public SetHeaderDefinition(String headerName, Expression expression) { 051 super(expression); 052 setHeaderName(headerName); 053 } 054 055 public SetHeaderDefinition(String headerName, String value) { 056 super(ExpressionBuilder.constantExpression(value)); 057 setHeaderName(headerName); 058 } 059 060 @Override 061 public String toString() { 062 return "SetHeader[" + getHeaderName() + ", " + getExpression() + "]"; 063 } 064 065 @Override 066 public String getShortName() { 067 return "setHeader"; 068 } 069 070 @Override 071 public String getLabel() { 072 return "setHeader[" + getHeaderName() + "]"; 073 } 074 075 @Override 076 public Processor createProcessor(RouteContext routeContext) throws Exception { 077 ObjectHelper.notNull(headerName, "headerName"); 078 Expression expr = getExpression().createExpression(routeContext); 079 return ProcessorBuilder.setHeader(getHeaderName(), expr); 080 } 081 082 @Required 083 public void setHeaderName(String headerName) { 084 this.headerName = headerName; 085 } 086 087 public String getHeaderName() { 088 return headerName; 089 } 090 091 }