HBaseUtil.java

/**
 * 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 com.xavient.dip.apex.util;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.HBaseAdmin;

public class HBaseUtil {
  @SuppressWarnings("deprecation")
  public static void createTable(Configuration configuration, String tableName, String... colFamilies) throws MasterNotRunningException, ZooKeeperConnectionException, IOException {
    HBaseAdmin admin = null;
    try {
      admin = new HBaseAdmin(configuration);
      if (!admin.isTableAvailable(tableName)) {
        HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);
        for (String colFam : colFamilies) {
          tableDescriptor.addFamily(new HColumnDescriptor(colFam));
        }
        admin.createTable(tableDescriptor);
      }
    } finally {
      if (admin != null) {
        admin.close();
      }
    }
  }

  @SuppressWarnings("deprecation")
  public static void deleteTable(Configuration configuration, String tableName) throws MasterNotRunningException, ZooKeeperConnectionException, IOException {
    HBaseAdmin admin = null;
    try {
      admin = new HBaseAdmin(configuration);
      if (admin.isTableAvailable(tableName)) {
        admin.disableTable(tableName);
        admin.deleteTable(tableName);
      }
    } finally {
      if (admin != null) {
        admin.close();
      }
    }
  }
}