| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.sqoop.hive; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.sqoop.SqoopOptions; |
| import org.apache.sqoop.db.JdbcConnectionFactory; |
| |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.PreparedStatement; |
| import java.sql.SQLException; |
| import java.util.List; |
| |
| import static java.util.Arrays.asList; |
| |
| public class HiveServer2Client implements HiveClient { |
| |
| private static final Log LOG = LogFactory.getLog(HiveServer2Client.class.getName()); |
| |
| private final SqoopOptions sqoopOptions; |
| |
| private final TableDefWriter tableDefWriter; |
| |
| private final JdbcConnectionFactory hs2ConnectionFactory; |
| |
| private final HiveClientCommon hiveClientCommon; |
| |
| public HiveServer2Client(SqoopOptions sqoopOptions, TableDefWriter tableDefWriter, JdbcConnectionFactory hs2ConnectionFactory, HiveClientCommon hiveClientCommon) { |
| this.sqoopOptions = sqoopOptions; |
| this.tableDefWriter = tableDefWriter; |
| this.hs2ConnectionFactory = hs2ConnectionFactory; |
| this.hiveClientCommon = hiveClientCommon; |
| } |
| |
| public HiveServer2Client(SqoopOptions sqoopOptions, TableDefWriter tableDefWriter, JdbcConnectionFactory hs2ConnectionFactory) { |
| this(sqoopOptions, tableDefWriter, hs2ConnectionFactory, new HiveClientCommon()); |
| } |
| |
| @Override |
| public void importTable() throws IOException { |
| LOG.info("Loading uploaded data into Hive."); |
| String createTableStmt = tableDefWriter.getCreateTableStmt(); |
| String loadDataStmt = tableDefWriter.getLoadDataStmt(); |
| executeHiveImport(asList(createTableStmt, loadDataStmt)); |
| LOG.info("Hive import complete."); |
| } |
| |
| @Override |
| public void createTable() throws IOException { |
| LOG.info("Creating Hive table: " + tableDefWriter.getOutputTableName()); |
| String createTableStmt = tableDefWriter.getCreateTableStmt(); |
| executeHiveImport(asList(createTableStmt)); |
| LOG.info("Hive table is successfully created."); |
| } |
| |
| void executeHiveImport(List<String> commands) throws IOException { |
| Path finalPath = tableDefWriter.getFinalPath(); |
| |
| hiveClientCommon.removeTempLogs(sqoopOptions.getConf(), finalPath); |
| |
| hiveClientCommon.indexLzoFiles(sqoopOptions, finalPath); |
| |
| try { |
| executeCommands(commands); |
| } catch (SQLException e) { |
| throw new RuntimeException("Error executing Hive import.", e); |
| } |
| |
| hiveClientCommon.cleanUp(sqoopOptions.getConf(), finalPath); |
| } |
| |
| void executeCommands(List<String> commands) throws SQLException { |
| try (Connection hs2Connection = hs2ConnectionFactory.createConnection()) { |
| for (String command : commands) { |
| LOG.debug("Executing command: " + command); |
| try (PreparedStatement statement = hs2Connection.prepareStatement(command)) { |
| statement.execute(); |
| } |
| } |
| } |
| } |
| |
| SqoopOptions getSqoopOptions() { |
| return sqoopOptions; |
| } |
| |
| TableDefWriter getTableDefWriter() { |
| return tableDefWriter; |
| } |
| |
| JdbcConnectionFactory getHs2ConnectionFactory() { |
| return hs2ConnectionFactory; |
| } |
| } |