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 java.util.ArrayList; 020 import java.util.List; 021 import javax.xml.bind.annotation.XmlAccessType; 022 import javax.xml.bind.annotation.XmlAccessorType; 023 import javax.xml.bind.annotation.XmlElement; 024 import javax.xml.bind.annotation.XmlRootElement; 025 026 import org.apache.camel.model.LoadBalancerDefinition; 027 import org.apache.camel.processor.loadbalancer.FailOverLoadBalancer; 028 import org.apache.camel.processor.loadbalancer.LoadBalancer; 029 import org.apache.camel.spi.RouteContext; 030 031 @XmlRootElement(name = "failover") 032 @XmlAccessorType(XmlAccessType.FIELD) 033 public class FailoverLoadBalancerDefinition extends LoadBalancerDefinition { 034 035 @XmlElement(name = "exception") 036 private List<String> exceptions = new ArrayList<String>(); 037 038 @Override 039 protected LoadBalancer createLoadBalancer(RouteContext routeContext) { 040 if (!exceptions.isEmpty()) { 041 List<Class> classes = new ArrayList<Class>(); 042 for (String name : exceptions) { 043 Class type = routeContext.getCamelContext().getClassResolver().resolveClass(name); 044 if (type == null) { 045 throw new IllegalArgumentException("Cannot find class: " + name + " in the classpath"); 046 } 047 classes.add(type); 048 } 049 return new FailOverLoadBalancer(classes); 050 } else { 051 return new FailOverLoadBalancer(); 052 } 053 } 054 055 public List<String> getExceptions() { 056 return exceptions; 057 } 058 059 public void setExceptions(List<String> exceptions) { 060 this.exceptions = exceptions; 061 } 062 063 @Override 064 public String toString() { 065 return "FailoverLoadBalancer"; 066 } 067 }