| /** |
| * 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.tajo; |
| |
| import org.apache.tajo.util.TajoIdUtils; |
| |
| import java.text.DecimalFormat; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| public class QueryIdFactory { |
| public static final QueryId NULL_QUERY_ID = newQueryId(TajoIdUtils.MASTER_ID_FORMAT.format(0), 0); |
| |
| public static final DecimalFormat ID_FORMAT = new DecimalFormat("0000"); |
| |
| public static final DecimalFormat EB_ID_FORMAT = new DecimalFormat("000000"); |
| |
| public static final DecimalFormat QU_ID_FORMAT = new DecimalFormat("000000"); |
| |
| public static final DecimalFormat ATTEMPT_ID_FORMAT = new DecimalFormat("00"); |
| |
| private static Map<String, AtomicInteger> queryNexIdMap = new HashMap<String, AtomicInteger>(); |
| |
| private static AtomicInteger nextId = new AtomicInteger(0); |
| |
| /* |
| * <ul> |
| * <li>QueryId == q_{masterId}_{seq}</li> |
| * <li>masterId == tajoMasterId or YarnResourceManagerId</li> |
| * <li>seq = TajoSeq or YarnSeq</li> |
| * </ul> |
| */ |
| public synchronized static QueryId newQueryId(String seedQueryId) { |
| AtomicInteger queryNextId = queryNexIdMap.get(seedQueryId); |
| if(queryNextId == null) { |
| queryNextId = new AtomicInteger(0); |
| queryNexIdMap.put(seedQueryId, queryNextId); |
| } |
| if(isYarnId(seedQueryId)) { |
| String[] tokens = seedQueryId.split("_"); |
| return new QueryId(tokens[1], Integer.parseInt(tokens[2])); |
| } else { |
| int seq = queryNextId.incrementAndGet(); |
| if(seq >= 10000) { |
| queryNextId.set(0); |
| seq = queryNextId.incrementAndGet(); |
| } |
| |
| return new QueryId(seedQueryId, seq); |
| } |
| } |
| |
| public synchronized static QueryId newQueryId(long timestamp, int seq) { |
| return new QueryId(String.valueOf(timestamp), seq); |
| } |
| |
| public synchronized static QueryId newQueryId(String seedQueryId, int seq) { |
| if(isYarnId(seedQueryId)) { |
| String[] tokens = seedQueryId.split("_"); |
| return new QueryId(tokens[1], Integer.parseInt(tokens[2])); |
| } else { |
| return new QueryId(seedQueryId, seq); |
| } |
| } |
| |
| private static boolean isYarnId(String id) { |
| return id.startsWith("application"); |
| } |
| |
| public synchronized static ExecutionBlockId newExecutionBlockId(QueryId queryId) { |
| return new ExecutionBlockId(queryId, nextId.incrementAndGet()); |
| } |
| |
| public synchronized static ExecutionBlockId newExecutionBlockId(QueryId queryId, int id) { |
| return new ExecutionBlockId(queryId, id); |
| } |
| |
| public synchronized static TaskId newTaskId(ExecutionBlockId executionBlockId) { |
| return new TaskId(executionBlockId, nextId.incrementAndGet()); |
| } |
| |
| public synchronized static TaskId newTaskId(ExecutionBlockId executionBlockId, int id) { |
| return new TaskId(executionBlockId, id); |
| } |
| |
| public synchronized static TaskAttemptId newTaskAttemptId(TaskId taskId, final int attemptId) { |
| return new TaskAttemptId(taskId, attemptId); |
| } |
| } |