/**
    * 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.hadoop.hbase;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.hbase.client.HBaseAdmin;
  import org.apache.hadoop.hbase.util.Bytes;
  import org.apache.hadoop.hbase.util.LoadTestDataGeneratorWithMOB;
  import org.apache.hadoop.hbase.util.LoadTestTool;
  import org.apache.hadoop.util.ToolRunner;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  import org.apache.hadoop.hbase.testclassification.IntegrationTests;
  
  /**
   * Integration Test for MOB ingest.
   */
  @Category(IntegrationTests.class)
  public class IntegrationTestIngestWithMOB extends IntegrationTestIngest {
    private static final char COLON = ':';
  
    private byte[] mobColumnFamily = LoadTestTool.DEFAULT_COLUMN_FAMILY;
    public static final String THRESHOLD = "threshold";
    public static final String MIN_MOB_DATA_SIZE = "minMobDataSize";
    public static final String MAX_MOB_DATA_SIZE = "maxMobDataSize";
    private int threshold = 1024; // 1KB
    private int minMobDataSize = 512; // 512B
    private int maxMobDataSize = threshold * 5; // 5KB
    private static final long JUNIT_RUN_TIME = 2 * 60 * 1000; // 2 minutes
  
    //similar to LOAD_TEST_TOOL_INIT_ARGS except OPT_IN_MEMORY is removed
    protected String[] LOAD_TEST_TOOL_MOB_INIT_ARGS = {
        LoadTestTool.OPT_COMPRESSION,
        LoadTestTool.OPT_DATA_BLOCK_ENCODING,
        LoadTestTool.OPT_ENCRYPTION,
        LoadTestTool.OPT_NUM_REGIONS_PER_SERVER,
        LoadTestTool.OPT_REGION_REPLICATION,
    };
  
    @Override
    protected String[] getArgsForLoadTestToolInitTable() {
      List<String> args = new ArrayList<String>();
      args.add("-tn");
      args.add(getTablename().getNameAsString());
      // pass all remaining args from conf with keys <test class name>.<load test tool arg>
      String clazz = this.getClass().getSimpleName();
      for (String arg : LOAD_TEST_TOOL_MOB_INIT_ARGS) {
        String val = conf.get(String.format("%s.%s", clazz, arg));
        if (val != null) {
          args.add("-" + arg);
          args.add(val);
        }
      }
      args.add("-init_only");
      return args.toArray(new String[args.size()]);
    }
  
    @Override
    protected void addOptions() {
      super.addOptions();
      super.addOptWithArg(THRESHOLD, "The threshold to classify cells to mob data");
      super.addOptWithArg(MIN_MOB_DATA_SIZE, "Minimum value size for mob data");
      super.addOptWithArg(MAX_MOB_DATA_SIZE, "Maximum value size for mob data");
    }
  
    @Override
    protected void processOptions(CommandLine cmd) {
      super.processOptions(cmd);
      if (cmd.hasOption(THRESHOLD)) {
        threshold = Integer.parseInt(cmd.getOptionValue(THRESHOLD));
      }
      if (cmd.hasOption(MIN_MOB_DATA_SIZE)) {
        minMobDataSize = Integer.parseInt(cmd.getOptionValue(MIN_MOB_DATA_SIZE));
      }
      if (cmd.hasOption(MAX_MOB_DATA_SIZE)) {
        maxMobDataSize = Integer.parseInt(cmd.getOptionValue(MAX_MOB_DATA_SIZE));
      }
      if (minMobDataSize > maxMobDataSize) {
       throw new IllegalArgumentException(
           "The minMobDataSize should not be larger than minMobDataSize");
     }
   }
 
   @Test
   public void testIngest() throws Exception {
     runIngestTest(JUNIT_RUN_TIME, 100, 10, 1024, 10, 20);
   };
 
   @Override
   protected void initTable() throws IOException {
     super.initTable();
 
     byte[] tableName = getTablename().getName();
     HBaseAdmin admin = new HBaseAdmin(conf);
     HTableDescriptor tableDesc = admin.getTableDescriptor(tableName);
     LOG.info("Disabling table " + getTablename());
     admin.disableTable(tableName);
     for (HColumnDescriptor columnDescriptor : tableDesc.getFamilies()) {
       if(Arrays.equals(columnDescriptor.getName(), mobColumnFamily)) {
         columnDescriptor.setMobEnabled(true);
         columnDescriptor.setMobThreshold((long) threshold);
         admin.modifyColumn(tableName, columnDescriptor);
       }
     }
     LOG.info("Enabling table " + getTablename());
     admin.enableTable(tableName);
     admin.close();
   }
 
   @Override
   protected String[] getArgsForLoadTestTool(String mode, String modeSpecificArg, long startKey,
       long numKeys) {
     String[] args = super.getArgsForLoadTestTool(mode, modeSpecificArg, startKey, numKeys);
     List<String> tmp = new ArrayList<String>(Arrays.asList(args));
     // LoadTestDataGeneratorMOB:mobColumnFamily:minMobDataSize:maxMobDataSize
     tmp.add(HIPHEN + LoadTestTool.OPT_GENERATOR);
     StringBuilder sb = new StringBuilder(LoadTestDataGeneratorWithMOB.class.getName());
     sb.append(COLON);
     sb.append(Bytes.toString(mobColumnFamily));
     sb.append(COLON);
     sb.append(minMobDataSize);
     sb.append(COLON);
     sb.append(maxMobDataSize);
     tmp.add(sb.toString());
     return tmp.toArray(new String[tmp.size()]);
   }
 
   public static void main(String[] args) throws Exception {
     Configuration conf = HBaseConfiguration.create();
     IntegrationTestingUtility.setUseDistributedCluster(conf);
     int ret = ToolRunner.run(conf, new IntegrationTestIngestWithMOB(), args);
     System.exit(ret);
   }
 }