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.loadbalancer;
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.model.ExpressionSubElementDefinition;
025 import org.apache.camel.model.LoadBalancerDefinition;
026 import org.apache.camel.processor.loadbalancer.LoadBalancer;
027 import org.apache.camel.processor.loadbalancer.StickyLoadBalancer;
028 import org.apache.camel.spi.RouteContext;
029
030 /**
031 * Represents an XML <sticky/> element
032 */
033 @XmlRootElement(name = "sticky")
034 @XmlAccessorType(XmlAccessType.FIELD)
035 public class StickyLoadBalancerDefinition extends LoadBalancerDefinition {
036
037 @XmlElement(name = "correlationExpression", required = false)
038 private ExpressionSubElementDefinition correlationExpression;
039
040 @Override
041 protected LoadBalancer createLoadBalancer(RouteContext routeContext) {
042 return new StickyLoadBalancer(correlationExpression.createExpression(routeContext));
043 }
044
045 public ExpressionSubElementDefinition getCorrelationExpression() {
046 return correlationExpression;
047 }
048
049 public void setCorrelationExpression(ExpressionSubElementDefinition correlationExpression) {
050 this.correlationExpression = correlationExpression;
051 }
052
053 @Override
054 public String toString() {
055 return "StickyLoadBalancer[" + correlationExpression + "]";
056 }
057 }