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.XmlAttribute;
022    import javax.xml.bind.annotation.XmlRootElement;
023    
024    import org.apache.camel.model.LoadBalancerDefinition;
025    import org.apache.camel.processor.loadbalancer.LoadBalancer;
026    import org.apache.camel.spi.RouteContext;
027    import org.apache.camel.util.CamelContextHelper;
028    import org.apache.camel.util.ObjectHelper;
029    
030    /**
031     * Represents an XML <customLoadBalancer/> element
032     */
033    @XmlRootElement(name = "customLoadBalancer")
034    @XmlAccessorType(XmlAccessType.FIELD)
035    public class CustomLoadBalancerDefinition extends LoadBalancerDefinition {
036    
037        @XmlAttribute(required = true)
038        private String ref;
039    
040        public CustomLoadBalancerDefinition() {
041        }
042    
043        public String getRef() {
044            return ref;
045        }
046    
047        public void setRef(String ref) {
048            this.ref = ref;
049        }
050    
051        @Override
052        protected LoadBalancer createLoadBalancer(RouteContext routeContext) {
053            ObjectHelper.notEmpty(ref, "ref", this);
054            return CamelContextHelper.mandatoryLookup(routeContext.getCamelContext(), ref, LoadBalancer.class);
055        }
056    
057        @Override
058        public String toString() {
059            return "CustomLoadBalancer[" + ref + "]";
060        }
061    
062    }