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.XmlElement;
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.model.language.ExpressionType;
027 import org.apache.camel.processor.Delayer;
028 import org.apache.camel.spi.RouteContext;
029 import org.apache.camel.util.ObjectHelper;
030
031 /**
032 * Represents an XML <delayer/> element
033 *
034 * @version $Revision: 719456 $
035 */
036 @XmlRootElement(name = "delayer")
037 @XmlAccessorType(XmlAccessType.FIELD)
038 public class DelayerType extends ExpressionNode {
039 @XmlElement
040 private Long delay = 0L;
041
042 public DelayerType() {
043 }
044
045 public DelayerType(Expression processAtExpression) {
046 super(processAtExpression);
047 }
048
049 public DelayerType(ExpressionType processAtExpression) {
050 super(processAtExpression);
051 }
052
053 public DelayerType(Expression processAtExpression, long delay) {
054 super(processAtExpression);
055 this.delay = delay;
056 }
057
058 @Override
059 public String toString() {
060 return "Delayer[" + getExpression() + " -> " + getOutputs() + "]";
061 }
062
063 @Override
064 public String getShortName() {
065 return "delayer";
066 }
067
068 public Long getDelay() {
069 return delay;
070 }
071
072 public void setDelay(Long delay) {
073 this.delay = delay;
074 }
075
076 @Override
077 public Processor createProcessor(RouteContext routeContext) throws Exception {
078 Processor childProcessor = routeContext.createProcessor(this);
079 Expression processAtExpression = createAbsoluteTimeDelayExpression(routeContext);
080 return new Delayer(childProcessor, processAtExpression, delay);
081 }
082
083 private Expression createAbsoluteTimeDelayExpression(RouteContext routeContext) {
084 ExpressionType expr = getExpression();
085 if (expr != null) {
086 if (ObjectHelper.isNotNullAndNonEmpty(expr.getExpression())
087 || expr.getExpressionValue() != null) {
088 return expr.createExpression(routeContext);
089 }
090 }
091 return null;
092 }
093 }