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.model.language.ExpressionDefinition; 028 import org.apache.camel.processor.Delayer; 029 import org.apache.camel.spi.RouteContext; 030 import org.apache.camel.util.ObjectHelper; 031 032 /** 033 * Represents an XML <delay/> element 034 * 035 * @version $Revision: 751373 $ 036 */ 037 @XmlRootElement(name = "delay") 038 @XmlAccessorType(XmlAccessType.FIELD) 039 public class DelayDefinition extends ExpressionNode { 040 @XmlAttribute 041 private Long delayTime = 0L; 042 043 public DelayDefinition() { 044 } 045 046 public DelayDefinition(Expression processAtExpression) { 047 super(processAtExpression); 048 } 049 050 public DelayDefinition(ExpressionDefinition processAtExpression) { 051 super(processAtExpression); 052 } 053 054 public DelayDefinition(Expression processAtExpression, long delayTime) { 055 super(processAtExpression); 056 this.delayTime = delayTime; 057 } 058 059 @Override 060 public String toString() { 061 return "Delay[on: " + getExpression() + " delay: " + delayTime + " -> " + getOutputs() + "]"; 062 } 063 064 // Fluent API 065 // ------------------------------------------------------------------------- 066 067 /** 068 * Sets the delay time in millis to delay 069 * @param delay delay time in millis 070 * @return the builder 071 */ 072 public DelayDefinition delayTime(Long delay) { 073 setDelayTime(delay); 074 return this; 075 } 076 077 /** 078 * Set the expression that the delayer will use 079 * @return the builder 080 */ 081 public ExpressionClause<DelayDefinition> expression() { 082 return ExpressionClause.createAndSetExpression(this); 083 } 084 085 @Override 086 public String getShortName() { 087 return "delay"; 088 } 089 090 public Long getDelayTime() { 091 return delayTime; 092 } 093 094 public void setDelayTime(Long delayTime) { 095 this.delayTime = delayTime; 096 } 097 098 099 @Override 100 public Processor createProcessor(RouteContext routeContext) throws Exception { 101 Processor childProcessor = routeContext.createProcessor(this); 102 Expression processAtExpression = createAbsoluteTimeDelayExpression(routeContext); 103 return new Delayer(childProcessor, processAtExpression, delayTime); 104 } 105 106 private Expression createAbsoluteTimeDelayExpression(RouteContext routeContext) { 107 ExpressionDefinition expr = getExpression(); 108 if (expr != null) { 109 if (ObjectHelper.isNotEmpty(expr.getExpression()) 110 || expr.getExpressionValue() != null) { 111 return expr.createExpression(routeContext); 112 } 113 } 114 return null; 115 } 116 }