| /* |
| * 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.tephra; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| class DummyTxAware implements TransactionAware { |
| |
| enum InduceFailure { NoFailure, ReturnFalse, ThrowException } |
| |
| boolean started = false; |
| boolean committed = false; |
| boolean checked = false; |
| boolean rolledBack = false; |
| boolean postCommitted = false; |
| private List<byte[]> changes = Lists.newArrayList(); |
| |
| InduceFailure failStartTxOnce = InduceFailure.NoFailure; |
| InduceFailure failChangesTxOnce = InduceFailure.NoFailure; |
| InduceFailure failCommitTxOnce = InduceFailure.NoFailure; |
| InduceFailure failPostCommitTxOnce = InduceFailure.NoFailure; |
| InduceFailure failRollbackTxOnce = InduceFailure.NoFailure; |
| InduceFailure failGetName = InduceFailure.NoFailure; |
| |
| void addChange(byte[] key) { |
| changes.add(key); |
| } |
| |
| void reset() { |
| started = false; |
| checked = false; |
| committed = false; |
| rolledBack = false; |
| postCommitted = false; |
| changes.clear(); |
| } |
| |
| @Override |
| public void startTx(Transaction tx) { |
| reset(); |
| started = true; |
| if (failStartTxOnce == InduceFailure.ThrowException) { |
| failStartTxOnce = InduceFailure.NoFailure; |
| throw new RuntimeException("start failure"); |
| } |
| } |
| |
| @Override |
| public void updateTx(Transaction tx) { |
| // do nothing |
| } |
| |
| @Override |
| public Collection<byte[]> getTxChanges() { |
| checked = true; |
| if (failChangesTxOnce == InduceFailure.ThrowException) { |
| failChangesTxOnce = InduceFailure.NoFailure; |
| throw new RuntimeException("changes failure"); |
| } |
| return ImmutableList.copyOf(changes); |
| } |
| |
| @Override |
| public boolean commitTx() throws Exception { |
| committed = true; |
| if (failCommitTxOnce == InduceFailure.ThrowException) { |
| failCommitTxOnce = InduceFailure.NoFailure; |
| throw new RuntimeException("persist failure"); |
| } |
| if (failCommitTxOnce == InduceFailure.ReturnFalse) { |
| failCommitTxOnce = InduceFailure.NoFailure; |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public void postTxCommit() { |
| postCommitted = true; |
| if (failPostCommitTxOnce == InduceFailure.ThrowException) { |
| failPostCommitTxOnce = InduceFailure.NoFailure; |
| throw new RuntimeException("post failure"); |
| } |
| } |
| |
| @Override |
| public boolean rollbackTx() throws Exception { |
| rolledBack = true; |
| if (failRollbackTxOnce == InduceFailure.ThrowException) { |
| failRollbackTxOnce = InduceFailure.NoFailure; |
| throw new RuntimeException("rollback failure"); |
| } |
| if (failRollbackTxOnce == InduceFailure.ReturnFalse) { |
| failRollbackTxOnce = InduceFailure.NoFailure; |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public String getTransactionAwareName() { |
| if (failGetName == InduceFailure.ThrowException) { |
| throw new RuntimeException("get name failure"); |
| } |
| return "dummy"; |
| } |
| } |