| /* |
| * 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.druid.indexer; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.inject.Inject; |
| import org.apache.druid.java.util.common.logger.Logger; |
| import org.apache.druid.timeline.DataSegment; |
| |
| import javax.annotation.Nullable; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| */ |
| public class HadoopDruidIndexerJob implements Jobby |
| { |
| private static final Logger log = new Logger(HadoopDruidIndexerJob.class); |
| private final HadoopDruidIndexerConfig config; |
| @Nullable |
| private final MetadataStorageUpdaterJob metadataStorageUpdaterJob; |
| @Nullable |
| private IndexGeneratorJob indexJob; |
| @Nullable |
| private volatile List<DataSegment> publishedSegments = null; |
| @Nullable |
| private String hadoopJobIdFile; |
| |
| @Inject |
| public HadoopDruidIndexerJob( |
| HadoopDruidIndexerConfig config, |
| MetadataStorageUpdaterJobHandler handler |
| ) |
| { |
| config.verify(); |
| this.config = config; |
| |
| Preconditions.checkArgument( |
| !config.isUpdaterJobSpecSet() || handler != null, |
| "MetadataStorageUpdaterJobHandler must not be null if ioConfig.metadataUpdateSpec is specified." |
| ); |
| |
| if (config.isUpdaterJobSpecSet()) { |
| metadataStorageUpdaterJob = new MetadataStorageUpdaterJob( |
| config, |
| handler |
| ); |
| } else { |
| metadataStorageUpdaterJob = null; |
| } |
| } |
| |
| @Override |
| public boolean run() |
| { |
| List<Jobby> jobs = new ArrayList<>(); |
| JobHelper.ensurePaths(config); |
| |
| indexJob = new IndexGeneratorJob(config); |
| jobs.add(indexJob); |
| |
| if (metadataStorageUpdaterJob != null) { |
| jobs.add(metadataStorageUpdaterJob); |
| } else { |
| log.info( |
| "No metadataStorageUpdaterJob set in the config. This is cool if you are running a hadoop index task, otherwise nothing will be uploaded to database." |
| ); |
| } |
| |
| jobs.add( |
| new Jobby() |
| { |
| @Override |
| public boolean run() |
| { |
| publishedSegments = IndexGeneratorJob.getPublishedSegments(config); |
| return true; |
| } |
| } |
| ); |
| |
| config.setHadoopJobIdFileName(hadoopJobIdFile); |
| return JobHelper.runJobs(jobs, config); |
| } |
| |
| @Override |
| public Map<String, Object> getStats() |
| { |
| if (indexJob == null) { |
| return null; |
| } |
| |
| return indexJob.getStats(); |
| } |
| |
| @Nullable |
| @Override |
| public String getErrorMessage() |
| { |
| if (indexJob == null) { |
| return null; |
| } |
| |
| return indexJob.getErrorMessage(); |
| } |
| |
| public List<DataSegment> getPublishedSegments() |
| { |
| if (publishedSegments == null) { |
| throw new IllegalStateException("Job hasn't run yet. No segments have been published yet."); |
| } |
| return publishedSegments; |
| } |
| |
| public void setHadoopJobIdFile(String hadoopJobIdFile) |
| { |
| this.hadoopJobIdFile = hadoopJobIdFile; |
| } |
| } |