| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.io.retry; |
| |
| import org.apache.hadoop.ipc.RemoteException; |
| |
| public class UnreliableImplementation implements UnreliableInterface { |
| |
| private int failsOnceInvocationCount, |
| failsOnceWithValueInvocationCount, |
| failsTenTimesInvocationCount; |
| |
| public void alwaysSucceeds() { |
| // do nothing |
| } |
| |
| public void alwaysFailsWithFatalException() throws FatalException { |
| throw new FatalException(); |
| } |
| |
| public void alwaysFailsWithRemoteFatalException() throws RemoteException { |
| throw new RemoteException(FatalException.class.getName(), "Oops"); |
| } |
| |
| public void failsOnceThenSucceeds() throws UnreliableException { |
| if (failsOnceInvocationCount++ == 0) { |
| throw new UnreliableException(); |
| } |
| } |
| |
| public boolean failsOnceThenSucceedsWithReturnValue() throws UnreliableException { |
| if (failsOnceWithValueInvocationCount++ == 0) { |
| throw new UnreliableException(); |
| } |
| return true; |
| } |
| |
| public void failsTenTimesThenSucceeds() throws UnreliableException { |
| if (failsTenTimesInvocationCount++ < 10) { |
| throw new UnreliableException(); |
| } |
| } |
| |
| } |