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 */ 017package org.apache.camel.model; 018 019import javax.xml.bind.annotation.XmlAccessType; 020import javax.xml.bind.annotation.XmlAccessorType; 021import javax.xml.bind.annotation.XmlRootElement; 022 023import org.apache.camel.Expression; 024import org.apache.camel.Processor; 025import org.apache.camel.model.language.ExpressionDefinition; 026import org.apache.camel.processor.ScriptProcessor; 027import org.apache.camel.spi.Metadata; 028import org.apache.camel.spi.RouteContext; 029 030/** 031 * Executes a script from a language which does not change the message body. 032 */ 033@Metadata(label = "eip,transformation") 034@XmlRootElement(name = "script") 035@XmlAccessorType(XmlAccessType.FIELD) 036public class ScriptDefinition extends NoOutputExpressionNode { 037 038 public ScriptDefinition() { 039 } 040 041 public ScriptDefinition(Expression expression) { 042 super(expression); 043 } 044 045 @Override 046 public String toString() { 047 return "Script[" + getExpression() + "]"; 048 } 049 050 @Override 051 public String getLabel() { 052 return "script[" + getExpression() + "]"; 053 } 054 055 @Override 056 public Processor createProcessor(RouteContext routeContext) throws Exception { 057 Expression expr = getExpression().createExpression(routeContext); 058 return new ScriptProcessor(expr); 059 } 060 061 /** 062 * Expression to return the transformed message body (the new message body to use) 063 */ 064 @Override 065 public void setExpression(ExpressionDefinition expression) { 066 // override to include javadoc what the expression is used for 067 super.setExpression(expression); 068 } 069 070}