Java tutorial
/* * Copyright 2013-2014 eBay Software Foundation * * Licensed 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 com.kylinolap.job.hadoop.invertedindex; import org.apache.commons.cli.Options; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.hadoop.fs.permission.FsPermission; import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles; import org.apache.hadoop.util.ToolRunner; import com.kylinolap.common.KylinConfig; import com.kylinolap.common.util.HadoopUtil; import com.kylinolap.cube.CubeInstance; import com.kylinolap.cube.CubeManager; import com.kylinolap.cube.CubeSegment; import com.kylinolap.cube.CubeSegmentStatusEnum; import com.kylinolap.job.hadoop.AbstractHadoopJob; import com.kylinolap.metadata.model.invertedindex.InvertedIndexDesc; /** * @author ysong1 * */ public class IIBulkLoadJob extends AbstractHadoopJob { @Override public int run(String[] args) throws Exception { Options options = new Options(); try { options.addOption(OPTION_INPUT_PATH); options.addOption(OPTION_HTABLE_NAME); options.addOption(OPTION_CUBE_NAME); parseOptions(options, args); String tableName = getOptionValue(OPTION_HTABLE_NAME); String input = getOptionValue(OPTION_INPUT_PATH); String cubeName = getOptionValue(OPTION_CUBE_NAME); FileSystem fs = FileSystem.get(getConf()); FsPermission permission = new FsPermission((short) 0777); fs.setPermission(new Path(input, InvertedIndexDesc.HBASE_FAMILY), permission); int hbaseExitCode = ToolRunner.run(new LoadIncrementalHFiles(getConf()), new String[] { input, tableName }); CubeManager mgr = CubeManager.getInstance(KylinConfig.getInstanceFromEnv()); CubeInstance cube = mgr.getCube(cubeName); CubeSegment seg = cube.getFirstSegment(); seg.setStorageLocationIdentifier(tableName); seg.setStatus(CubeSegmentStatusEnum.READY); mgr.updateCube(cube); return hbaseExitCode; } catch (Exception e) { printUsage(options); e.printStackTrace(System.err); return 2; } } public static void main(String[] args) throws Exception { IIBulkLoadJob job = new IIBulkLoadJob(); job.setConf(HadoopUtil.newHBaseConfiguration(KylinConfig.getInstanceFromEnv().getStorageUrl())); int exitCode = ToolRunner.run(job, args); System.exit(exitCode); } }