[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with 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 | |
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| 19 | package org.apache.hadoop.io.retry; |
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| 20 | |
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| 21 | import org.apache.hadoop.ipc.RemoteException; |
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| 22 | |
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| 23 | public class UnreliableImplementation implements UnreliableInterface { |
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| 24 | |
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| 25 | private int failsOnceInvocationCount, |
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| 26 | failsOnceWithValueInvocationCount, |
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| 27 | failsTenTimesInvocationCount; |
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| 28 | |
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| 29 | public void alwaysSucceeds() { |
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| 30 | // do nothing |
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| 31 | } |
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| 32 | |
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| 33 | public void alwaysFailsWithFatalException() throws FatalException { |
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| 34 | throw new FatalException(); |
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| 35 | } |
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| 36 | |
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| 37 | public void alwaysFailsWithRemoteFatalException() throws RemoteException { |
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| 38 | throw new RemoteException(FatalException.class.getName(), "Oops"); |
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| 39 | } |
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| 40 | |
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| 41 | public void failsOnceThenSucceeds() throws UnreliableException { |
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| 42 | if (failsOnceInvocationCount++ == 0) { |
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| 43 | throw new UnreliableException(); |
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| 44 | } |
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| 45 | } |
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| 46 | |
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| 47 | public boolean failsOnceThenSucceedsWithReturnValue() throws UnreliableException { |
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| 48 | if (failsOnceWithValueInvocationCount++ == 0) { |
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| 49 | throw new UnreliableException(); |
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| 50 | } |
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| 51 | return true; |
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| 52 | } |
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| 53 | |
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| 54 | public void failsTenTimesThenSucceeds() throws UnreliableException { |
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| 55 | if (failsTenTimesInvocationCount++ < 10) { |
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| 56 | throw new UnreliableException(); |
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| 57 | } |
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| 58 | } |
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| 59 | |
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| 60 | } |
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