| /** |
| * 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.falcon.hive.util; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.falcon.job.JobCounters; |
| import org.apache.falcon.job.JobCountersHandler; |
| import org.apache.falcon.job.JobType; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.util.Shell; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Hive replication utility class. |
| */ |
| public final class HiveDRUtils { |
| /** |
| * Enum for Hive replication type. |
| */ |
| public enum ReplicationType { |
| TABLE, |
| DB |
| } |
| |
| /** |
| * Enum for hive-dr action type. |
| */ |
| public enum ExecutionStage { |
| IMPORT, |
| EXPORT, |
| LASTEVENTS |
| } |
| |
| private static final String ALL_TABLES = "*"; |
| |
| public static final String SEPARATOR = File.separator; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(HiveDRUtils.class); |
| |
| private HiveDRUtils() {} |
| |
| public static ReplicationType getReplicationType(List<String> sourceTables) { |
| return (sourceTables.size() == 1 && sourceTables.get(0).equals(ALL_TABLES)) ? ReplicationType.DB |
| : ReplicationType.TABLE; |
| } |
| |
| public static Configuration getDefaultConf() throws IOException { |
| Configuration conf = new Configuration(); |
| |
| if (System.getProperty("oozie.action.conf.xml") != null) { |
| Path confPath = new Path("file:///", System.getProperty("oozie.action.conf.xml")); |
| |
| final boolean actionConfExists = confPath.getFileSystem(conf).exists(confPath); |
| LOG.info("Oozie Action conf {} found ? {}", confPath, actionConfExists); |
| if (actionConfExists) { |
| LOG.info("Oozie Action conf found, adding path={}, conf={}", confPath, conf.toString()); |
| conf.addResource(confPath); |
| } |
| } |
| |
| String tokenFile = System.getenv("HADOOP_TOKEN_FILE_LOCATION"); |
| if (StringUtils.isNotBlank(tokenFile)) { |
| if (Shell.WINDOWS) { |
| if (tokenFile.charAt(0) == '"') { |
| tokenFile = tokenFile.substring(1); |
| } |
| if (tokenFile.charAt(tokenFile.length() - 1) == '"') { |
| tokenFile = tokenFile.substring(0, tokenFile.length() - 1); |
| } |
| } |
| |
| conf.set("mapreduce.job.credentials.binary", tokenFile); |
| System.setProperty("mapreduce.job.credentials.binary", tokenFile); |
| conf.set("tez.credentials.path", tokenFile); |
| System.setProperty("tez.credentials.path", tokenFile); |
| } |
| |
| return conf; |
| } |
| |
| public static String getFilePathFromEnv(String env) { |
| String path = System.getenv(env); |
| if (path != null && Shell.WINDOWS) { |
| // In Windows, file paths are enclosed in \" so remove them here |
| // to avoid path errors |
| if (path.charAt(0) == '"') { |
| path = path.substring(1); |
| } |
| if (path.charAt(path.length() - 1) == '"') { |
| path = path.substring(0, path.length() - 1); |
| } |
| } |
| return path; |
| } |
| |
| public static Map<String, Long> fetchReplicationCounters(Configuration conf, |
| Job job) throws IOException, InterruptedException { |
| JobCounters hiveReplicationCounters = JobCountersHandler.getCountersType( |
| JobType.HIVEREPLICATION.name()); |
| hiveReplicationCounters.obtainJobCounters(conf, job, true); |
| return hiveReplicationCounters.getCountersMap(); |
| } |
| } |