| /** |
| * 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 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.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.io.DefaultStringifier; |
| import org.apache.hadoop.io.MapWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapreduce.InputFormat; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.OutputFormat; |
| import org.apache.sqoop.mapreduce.hcat.SqoopHCatUtilities; |
| import org.kitesdk.data.mapreduce.DatasetKeyInputFormat; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| import org.apache.sqoop.util.FileSystemUtil; |
| |
| /** |
| * Run an export using JDBC (JDBC-based ExportOutputFormat). |
| */ |
| public class JdbcExportJob extends ExportJobBase { |
| |
| private FileType fileType; |
| |
| public static final Log LOG = LogFactory.getLog( |
| JdbcExportJob.class.getName()); |
| |
| public JdbcExportJob(final ExportJobContext context) { |
| super(context); |
| } |
| |
| public JdbcExportJob(final ExportJobContext ctxt, |
| final Class<? extends Mapper> mapperClass, |
| final Class<? extends InputFormat> inputFormatClass, |
| final Class<? extends OutputFormat> outputFormatClass) { |
| super(ctxt, mapperClass, inputFormatClass, outputFormatClass); |
| } |
| |
| @Override |
| protected void configureInputFormat(Job job, String tableName, |
| String tableClassName, String splitByCol) |
| throws ClassNotFoundException, IOException { |
| |
| fileType = getInputFileType(); |
| |
| super.configureInputFormat(job, tableName, tableClassName, splitByCol); |
| |
| if (isHCatJob) { |
| SqoopHCatUtilities.configureExportInputFormat(options, job, |
| context.getConnManager(), tableName, job.getConfiguration()); |
| return; |
| } else if (fileType == FileType.AVRO_DATA_FILE) { |
| LOG.debug("Configuring for Avro export"); |
| configureGenericRecordExportInputFormat(job, tableName); |
| } else if (fileType == FileType.PARQUET_FILE) { |
| LOG.debug("Configuring for Parquet export"); |
| configureGenericRecordExportInputFormat(job, tableName); |
| String uri = "dataset:" + FileSystemUtil.makeQualified(getInputPath(), job.getConfiguration()); |
| DatasetKeyInputFormat.configure(job).readFrom(uri); |
| } |
| } |
| |
| private void configureGenericRecordExportInputFormat(Job job, String tableName) |
| throws IOException { |
| ConnManager connManager = context.getConnManager(); |
| Map<String, Integer> columnTypeInts; |
| if (options.getCall() == null) { |
| columnTypeInts = connManager.getColumnTypes( |
| tableName, |
| options.getSqlQuery()); |
| } else { |
| columnTypeInts = connManager.getColumnTypesForProcedure( |
| options.getCall()); |
| } |
| String[] specifiedColumns = options.getColumns(); |
| MapWritable columnTypes = new MapWritable(); |
| for (Map.Entry<String, Integer> e : columnTypeInts.entrySet()) { |
| String column = e.getKey(); |
| column = (specifiedColumns == null) ? column : options.getColumnNameCaseInsensitive(column); |
| if (column != null) { |
| Text columnName = new Text(column); |
| Text columnType = new Text(connManager.toJavaType(tableName, column, e.getValue())); |
| columnTypes.put(columnName, columnType); |
| } |
| } |
| DefaultStringifier.store(job.getConfiguration(), columnTypes, |
| AvroExportMapper.AVRO_COLUMN_TYPES_MAP); |
| } |
| |
| @Override |
| protected Class<? extends InputFormat> getInputFormatClass() |
| throws ClassNotFoundException { |
| if (isHCatJob) { |
| return SqoopHCatUtilities.getInputFormatClass(); |
| } |
| switch (fileType) { |
| case AVRO_DATA_FILE: |
| return AvroInputFormat.class; |
| case PARQUET_FILE: |
| return DatasetKeyInputFormat.class; |
| default: |
| return super.getInputFormatClass(); |
| } |
| } |
| |
| @Override |
| protected Class<? extends Mapper> getMapperClass() { |
| if (isHCatJob) { |
| return SqoopHCatUtilities.getExportMapperClass(); |
| } |
| switch (fileType) { |
| case SEQUENCE_FILE: |
| return SequenceFileExportMapper.class; |
| case AVRO_DATA_FILE: |
| return AvroExportMapper.class; |
| case PARQUET_FILE: |
| return ParquetExportMapper.class; |
| case UNKNOWN: |
| default: |
| return TextExportMapper.class; |
| } |
| } |
| |
| @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 (mgr.escapeTableNameOnExport()) { |
| DBOutputFormat.setOutput(job, mgr.escapeTableName(tableName), mgr.escapeColNames(colNames)); |
| } else { |
| DBOutputFormat.setOutput(job, tableName, mgr.escapeColNames(colNames)); |
| } |
| |
| job.setOutputFormatClass(getOutputFormatClass()); |
| job.getConfiguration().set(SQOOP_EXPORT_TABLE_CLASS_KEY, tableClassName); |
| } catch (ClassNotFoundException cnfe) { |
| throw new IOException("Could not load OutputFormat", cnfe); |
| } |
| } |
| |
| } |
| |