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.impl.RouteContext; 028 import org.apache.camel.model.language.ExpressionType; 029 import org.apache.camel.processor.Delayer; 030 import org.apache.camel.processor.SetHeaderProcessor; 031 032 @XmlRootElement(name = "setHeader") 033 @XmlAccessorType(XmlAccessType.FIELD) 034 public class SetHeaderType extends ExpressionNode { 035 @XmlAttribute 036 private String headerName; 037 @XmlAttribute(required = false) 038 private String value; 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 Processor createProcessor(RouteContext routeContext) throws Exception { 065 Expression expr; 066 067 if (getValue() == null) { 068 expr = getExpression().createExpression(routeContext); 069 } else { 070 expr = ExpressionBuilder.constantExpression(getValue()); 071 } 072 073 Processor childProcessor = routeContext.createProcessor(this); 074 075 return new SetHeaderProcessor(getHeaderName(), expr, childProcessor); 076 } 077 078 public void setHeaderName(String headerName) { 079 this.headerName = headerName; 080 } 081 082 public String getHeaderName() { 083 return headerName; 084 } 085 086 public void setValue(String value) { 087 this.value = value; 088 } 089 090 public String getValue() { 091 return value; 092 } 093 }