| /** |
| * 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 org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import com.cloudera.sqoop.manager.MySQLUtils; |
| import com.cloudera.sqoop.mapreduce.MySQLExportMapper; |
| |
| /** |
| * mysqlimport-based exporter which accepts lines of text from files |
| * in HDFS to emit to the database. |
| */ |
| public class MySQLTextExportMapper |
| extends MySQLExportMapper<LongWritable, Text> { |
| |
| // End-of-record delimiter. |
| private String recordEndStr; |
| |
| @Override |
| protected void setup(Context context) { |
| super.setup(context); |
| |
| char recordDelim = (char) conf.getInt(MySQLUtils.OUTPUT_RECORD_DELIM_KEY, |
| (int) '\n'); |
| this.recordEndStr = "" + recordDelim; |
| } |
| |
| /** |
| * Export the table to MySQL by using mysqlimport to write the data to the |
| * database. |
| * |
| * Expects one delimited text record as the 'val'; ignores the key. |
| */ |
| @Override |
| public void map(LongWritable key, Text val, Context context) |
| throws IOException, InterruptedException { |
| |
| writeRecord(val.toString(), this.recordEndStr); |
| |
| // We don't emit anything to the OutputCollector because we wrote |
| // straight to mysql. Send a progress indicator to prevent a timeout. |
| context.progress(); |
| } |
| |
| } |