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 java.util.ArrayList;
020 import java.util.Collection;
021 import java.util.List;
022
023 import javax.xml.bind.annotation.XmlElement;
024 import javax.xml.bind.annotation.XmlElementRef;
025 import javax.xml.bind.annotation.XmlRootElement;
026 import javax.xml.bind.annotation.XmlTransient;
027
028 import org.apache.camel.Endpoint;
029 import org.apache.camel.Exchange;
030 import org.apache.camel.Expression;
031 import org.apache.camel.Processor;
032 import org.apache.camel.Route;
033 import org.apache.camel.impl.RouteContext;
034 import org.apache.camel.model.language.ExpressionType;
035 import org.apache.camel.processor.Resequencer;
036
037 /**
038 * @version $Revision: 1.1 $
039 */
040 @XmlRootElement(name = "resequencer")
041 public class ResequencerType extends ProcessorType {
042 @XmlElementRef
043 private List<InterceptorType> interceptors = new ArrayList<InterceptorType>();
044 @XmlElementRef
045 private List<ExpressionType> expressions = new ArrayList<ExpressionType>();
046 @XmlElementRef
047 private List<ProcessorType> outputs = new ArrayList<ProcessorType>();
048 @XmlTransient
049 private List<Expression> expressionList;
050
051 public ResequencerType() {
052 }
053
054 public ResequencerType(List<Expression> expressions) {
055 this.expressionList = expressions;
056 }
057
058 @Override
059 public String toString() {
060 return "Resequencer[ " + getExpressions() + " -> " + getOutputs() + "]";
061 }
062
063 public List<ExpressionType> getExpressions() {
064 return expressions;
065 }
066
067 public List<InterceptorType> getInterceptors() {
068 return interceptors;
069 }
070
071 public void setInterceptors(List<InterceptorType> interceptors) {
072 this.interceptors = interceptors;
073 }
074
075 public List<ProcessorType> getOutputs() {
076 return outputs;
077 }
078
079 public void setOutputs(List<ProcessorType> outputs) {
080 this.outputs = outputs;
081 }
082
083 public void addRoutes(RouteContext routeContext, Collection<Route> routes) throws Exception {
084 Endpoint from = routeContext.getEndpoint();
085 final Processor processor = routeContext.createProcessor(this);
086 final Resequencer resequencer = new Resequencer(from, processor, resolveExpressionList(routeContext));
087
088 Route route = new Route<Exchange>(from, resequencer) {
089 @Override
090 public String toString() {
091 return "ResequencerRoute[" + getEndpoint() + " -> " + processor + "]";
092 }
093 };
094
095 routes.add(route);
096 }
097
098 private List<Expression> resolveExpressionList(RouteContext routeContext) {
099 if (expressionList == null) {
100 expressionList = new ArrayList<Expression>();
101 for (ExpressionType expression : expressions) {
102 expressionList.add(expression.createExpression(routeContext));
103 }
104 }
105 if (expressionList.isEmpty()) {
106 throw new IllegalArgumentException("No expressions configured for: " + this);
107 }
108 return expressionList;
109 }
110 }