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.RuntimeCamelException; 025 import org.apache.camel.processor.loadbalancer.FailOverLoadBalancer; 026 import org.apache.camel.processor.loadbalancer.LoadBalancer; 027 import org.apache.camel.spi.RouteContext; 028 import org.apache.camel.util.ObjectHelper; 029 030 @XmlRootElement(name = "failOver") 031 @XmlAccessorType(XmlAccessType.FIELD) 032 public class FailOverLoadBalanceStrategy extends LoadBalancerDefinition { 033 @XmlAttribute 034 private String failedException; 035 036 @Override 037 protected LoadBalancer createLoadBalancer(RouteContext routeContext) { 038 if (ObjectHelper.isNotEmpty(failedException)) { 039 Class failExceptionClazz = ObjectHelper.loadClass(failedException); 040 if (failExceptionClazz == null) { 041 throw new RuntimeCamelException("Cannot find failException: " + failedException + " to be used with this FailOverLoadBalancer"); 042 } 043 return new FailOverLoadBalancer(failExceptionClazz); 044 } else { 045 return new FailOverLoadBalancer(); 046 } 047 } 048 049 public void setFailedException(String exceptionName) { 050 failedException = exceptionName; 051 } 052 053 public String getFailedException() { 054 return failedException; 055 } 056 057 058 }