| /** |
| * 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.netezza; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.lang.StringEscapeUtils; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.InputFormat; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat; |
| import org.apache.sqoop.lib.DelimiterSet; |
| import org.apache.sqoop.manager.DirectNetezzaManager; |
| import |
| org.apache.sqoop.mapreduce.db.netezza.NetezzaExternalTableHCatExportMapper; |
| import |
| org.apache.sqoop.mapreduce.db.netezza.NetezzaExternalTableRecordExportMapper; |
| import |
| org.apache.sqoop.mapreduce.db.netezza.NetezzaExternalTableTextExportMapper; |
| import org.apache.sqoop.mapreduce.hcat.SqoopHCatUtilities; |
| |
| import org.apache.sqoop.manager.ConnManager; |
| import org.apache.sqoop.manager.ExportJobContext; |
| import org.apache.sqoop.mapreduce.ExportJobBase; |
| import org.apache.sqoop.mapreduce.db.DBConfiguration; |
| import org.apache.sqoop.mapreduce.db.DBOutputFormat; |
| |
| /** |
| * Class that runs an export job using netezza external tables in the mapper. |
| */ |
| public class NetezzaExternalTableExportJob extends ExportJobBase { |
| |
| public static final Log LOG = LogFactory |
| .getLog(NetezzaExternalTableExportJob.class.getName()); |
| |
| public NetezzaExternalTableExportJob(final ExportJobContext context) { |
| super(context, null, null, NullOutputFormat.class); |
| } |
| |
| @Override |
| protected void propagateOptionsToJob(Job job) { |
| Configuration conf = job.getConfiguration(); |
| String nullValue = options.getInNullStringValue(); |
| if (nullValue != null) { |
| conf.set(DirectNetezzaManager.NETEZZA_NULL_VALUE, |
| StringEscapeUtils.unescapeJava(nullValue)); |
| } |
| conf.setInt(DelimiterSet.INPUT_FIELD_DELIM_KEY, |
| options.getInputFieldDelim()); |
| conf.setInt(DelimiterSet.INPUT_RECORD_DELIM_KEY, |
| options.getInputRecordDelim()); |
| conf.setInt(DelimiterSet.INPUT_ENCLOSED_BY_KEY, |
| options.getInputEnclosedBy()); |
| // Netezza uses \ as the escape character. Force the use of it |
| int escapeChar = options.getInputEscapedBy(); |
| if (escapeChar > 0) { |
| if (escapeChar != '\\') { |
| LOG.info( |
| "Setting escaped char to \\ for Netezza external table export"); |
| } |
| conf.setInt(DelimiterSet.INPUT_ESCAPED_BY_KEY, '\\'); |
| } |
| conf.setBoolean(DelimiterSet.INPUT_ENCLOSE_REQUIRED_KEY, |
| options.isOutputEncloseRequired()); |
| } |
| |
| @Override |
| protected Class<? extends InputFormat> getInputFormatClass() |
| throws ClassNotFoundException { |
| if (isHCatJob) { |
| return SqoopHCatUtilities.getInputFormatClass(); |
| } |
| return super.getInputFormatClass(); |
| } |
| |
| @Override |
| protected void configureInputFormat(Job job, String tableName, |
| String tableClassName, String splitCol) |
| throws ClassNotFoundException, IOException { |
| super.configureInputFormat(job, tableName, tableClassName, splitCol); |
| if (isHCatJob) { |
| SqoopHCatUtilities.configureExportInputFormat(options, job, |
| context.getConnManager(), tableName, job.getConfiguration()); |
| return; |
| } |
| } |
| @Override |
| protected void configureOutputFormat(Job job, String tableName, |
| String tableClassName) |
| throws ClassNotFoundException, 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()); |
| if (isHCatJob) { |
| job.getConfiguration().set(SQOOP_EXPORT_TABLE_CLASS_KEY, |
| tableClassName); |
| } |
| } catch (ClassNotFoundException cnfe) { |
| throw new IOException("Could not load OutputFormat", cnfe); |
| } |
| } |
| |
| @Override |
| protected Class<? extends Mapper> getMapperClass() { |
| if (isHCatJob) { |
| return NetezzaExternalTableHCatExportMapper.class; |
| } |
| if (inputIsSequenceFiles()) { |
| return NetezzaExternalTableRecordExportMapper.class; |
| } else { |
| return NetezzaExternalTableTextExportMapper.class; |
| } |
| } |
| } |