| /** |
| * 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.sqoop.mapreduce; |
| |
| import java.io.IOException; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| import java.util.StringTokenizer; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.OutputFormat; |
| import org.apache.sqoop.manager.ConnManager; |
| import org.apache.sqoop.manager.ExportJobContext; |
| import org.apache.sqoop.mapreduce.db.DBConfiguration; |
| import org.apache.sqoop.mapreduce.db.DBOutputFormat; |
| import org.apache.sqoop.mapreduce.parquet.ParquetExportJobConfigurator; |
| |
| /** |
| * Run an update/insert export using JDBC (JDBC-based UpsertOutputFormat). |
| */ |
| public class JdbcUpsertExportJob extends JdbcUpdateExportJob { |
| |
| public static final Log LOG = LogFactory.getLog( |
| JdbcUpsertExportJob.class.getName()); |
| |
| public JdbcUpsertExportJob(final ExportJobContext context, |
| final Class<? extends OutputFormat> outputFormatClass, |
| final ParquetExportJobConfigurator parquetExportJobConfigurator) |
| throws IOException { |
| super(context, null, null, outputFormatClass, parquetExportJobConfigurator); |
| } |
| |
| @Override |
| protected void configureOutputFormat(Job job, String tableName, |
| String tableClassName) throws IOException { |
| |
| ConnManager mgr = context.getConnManager(); |
| try { |
| String username = options.getUsername(); |
| if (null == username || username.length() == 0) { |
| DBConfiguration.configureDB(job.getConfiguration(), |
| mgr.getDriverClass(), |
| options.getConnectString(), |
| options.getConnectionParams()); |
| } else { |
| DBConfiguration.configureDB(job.getConfiguration(), |
| mgr.getDriverClass(), |
| options.getConnectString(), |
| username, options.getPassword(), |
| options.getConnectionParams()); |
| } |
| |
| String [] colNames = options.getColumns(); |
| if (null == colNames) { |
| colNames = mgr.getColumnNames(tableName); |
| } |
| if (null == colNames) { |
| throw new IOException( |
| "Export column names could not be determined for " + tableName); |
| } |
| DBOutputFormat.setOutput(job, mgr.escapeTableName(tableName), mgr.escapeColNames(colNames)); |
| |
| String updateKeyColumns = options.getUpdateKeyCol(); |
| if (null == updateKeyColumns) { |
| throw new IOException("Update key column not set in export job"); |
| } |
| // Update key columns lookup and removal |
| Set<String> updateKeys = new LinkedHashSet<String>(); |
| StringTokenizer stok = new StringTokenizer(updateKeyColumns, ","); |
| while (stok.hasMoreTokens()) { |
| String nextUpdateKey = stok.nextToken().trim(); |
| if (nextUpdateKey.length() > 0) { |
| updateKeys.add(nextUpdateKey); |
| } else { |
| throw new RuntimeException("Invalid update key column value specified" |
| + ": '" + updateKeyColumns + "'"); |
| } |
| } |
| |
| if (updateKeys.size() == 0) { |
| throw new IOException("Unpdate key columns not valid in export job"); |
| } |
| |
| job.setOutputFormatClass(getOutputFormatClass()); |
| job.getConfiguration().set(SQOOP_EXPORT_TABLE_CLASS_KEY, tableClassName); |
| job.getConfiguration().set(SQOOP_EXPORT_UPDATE_COL_KEY, updateKeyColumns); |
| } catch (ClassNotFoundException cnfe) { |
| throw new IOException("Could not load OutputFormat", cnfe); |
| } |
| } |
| } |
| |