| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| QueueLoadBalancer |
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| 0.0;0 |
| 1 | /** |
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| 2 | * |
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| 3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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| 4 | * contributor license agreements. See the NOTICE file distributed with |
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| 5 | * this work for additional information regarding copyright ownership. |
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| 6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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| 7 | * (the "License"); you may not use this file except in compliance with |
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| 8 | * the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.camel.processor.loadbalancer; |
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| 19 | ||
| 20 | import org.apache.camel.Exchange; |
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| 21 | import org.apache.camel.Processor; |
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| 22 | ||
| 23 | import java.util.List; |
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| 24 | ||
| 25 | /** |
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| 26 | * A base class for {@link LoadBalancer} implementations which choose a single destination for each exchange |
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| 27 | * (rather like JMS Queues) |
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| 28 | * |
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| 29 | * @version $Revision: 1.1 $ |
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| 30 | */ |
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| 31 | 0 | public abstract class QueueLoadBalancer extends LoadBalancerSupport { |
| 32 | ||
| 33 | public void process(Exchange exchange) throws Exception { |
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| 34 | 0 | List<Processor> list = getProcessors(); |
| 35 | 0 | if (list.isEmpty()) { |
| 36 | 0 | throw new IllegalStateException("No processors available to process " + exchange); |
| 37 | } |
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| 38 | 0 | Processor processor = chooseProcessor(list, exchange); |
| 39 | 0 | if (processor == null) { |
| 40 | 0 | throw new IllegalStateException("No processors could be chosen to process " + exchange); |
| 41 | } |
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| 42 | else { |
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| 43 | 0 | processor.process(exchange); |
| 44 | } |
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| 45 | 0 | } |
| 46 | ||
| 47 | protected abstract Processor chooseProcessor(List<Processor> processors, Exchange exchange); |
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| 48 | } |