| /* |
| * 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.phoenix.transaction; |
| |
| import java.io.IOException; |
| |
| import org.apache.phoenix.coprocessor.MetaDataProtocol; |
| |
| |
| |
| public class TransactionFactory { |
| public enum Provider { |
| TEPHRA((byte)1, TephraTransactionProvider.getInstance(), true), |
| OMID((byte)2, OmidTransactionProvider.getInstance(), true); |
| |
| private final byte code; |
| private final PhoenixTransactionProvider provider; |
| private final boolean runTests; |
| |
| Provider(byte code, PhoenixTransactionProvider provider, boolean runTests) { |
| this.code = code; |
| this.provider = provider; |
| this.runTests = runTests; |
| } |
| |
| public byte getCode() { |
| return this.code; |
| } |
| |
| public static Provider fromCode(int code) { |
| if (code < 1 || code > Provider.values().length) { |
| throw new IllegalArgumentException("Invalid TransactionFactory.Provider " + code); |
| } |
| return Provider.values()[code-1]; |
| } |
| |
| public static Provider getDefault() { |
| return OMID; |
| } |
| |
| public PhoenixTransactionProvider getTransactionProvider() { |
| return provider; |
| } |
| |
| public boolean runTests() { |
| return runTests; |
| } |
| } |
| |
| public static PhoenixTransactionProvider getTransactionProvider(Provider provider) { |
| return provider.getTransactionProvider(); |
| } |
| |
| public static PhoenixTransactionProvider getTransactionProvider(byte[] txState, int clientVersion) { |
| if (txState == null || txState.length == 0) { |
| return null; |
| } |
| Provider provider = (clientVersion < MetaDataProtocol.MIN_SYSTEM_TABLE_TIMESTAMP_4_14_0) |
| ? Provider.TEPHRA |
| : Provider.fromCode(txState[txState.length-1]); |
| return provider.getTransactionProvider(); |
| } |
| |
| public static PhoenixTransactionContext getTransactionContext(byte[] txState, int clientVersion) throws IOException { |
| PhoenixTransactionProvider provider = getTransactionProvider(txState, clientVersion); |
| if (provider == null) { |
| return null; |
| } |
| return provider.getTransactionContext(txState); |
| } |
| } |