Example usage for org.apache.hadoop.mapreduce Mapper subclass-usage

Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce Mapper subclass-usage.

Usage

From source file com.cloudera.castagna.logparser.mr.TranscodeLogsMapper.java

public class TranscodeLogsMapper extends Mapper<LongWritable, Text, NullWritable, Text> {

    private static final Logger log = LoggerFactory.getLogger(TranscodeLogsMapper.class);
    private static final LogParser parser = new LogParser();

    private Text outTextValue = new Text();

From source file com.cloudera.crunch.impl.mr.run.CrunchMapper.java

public class CrunchMapper extends Mapper<Object, Object, Object, Object> {

    private static final Log LOG = LogFactory.getLog(CrunchMapper.class);

    private RTNode node;
    private CrunchTaskContext ctxt;

From source file com.cloudera.sa.hbasebulkload.HBASEBulkLoadKeyValueMapper.java

/**
 *
 * @author vsingh
 */
class HBASEBulkLoadKeyValueMapper extends Mapper<LongWritable, Text, ImmutableBytesWritable, Put> {

From source file com.cloudera.sa.securewordcount.TokenizerMapper.java

/**
 *
 * @author vsingh
 */
class TokenizerMapper extends Mapper<LongWritable, Text, Text, IntWritable> {
    private Configuration conf;

From source file com.cloudera.sqoop.mapreduce.AutoProgressMapper.java

/**
 * Identity mapper that continuously reports progress via a background thread.
 */
public class AutoProgressMapper<KEYIN, VALIN, KEYOUT, VALOUT> extends Mapper<KEYIN, VALIN, KEYOUT, VALOUT> {

    public static final Log LOG = LogFactory.getLog(AutoProgressMapper.class.getName());

From source file com.cloudera.sqoop.mapreduce.MergeMapperBase.java

/**
 * Given a set of SqoopRecord instances which are from a "new" dataset
 * or an "old" dataset, extract a key column from the record and tag
 * each record with a bit specifying whether it is a new or old record.
 */
public class MergeMapperBase<INKEY, INVAL> extends Mapper<INKEY, INVAL, Text, MergeRecord> {

From source file com.cloudera.sqoop.mapreduce.MySQLExportMapper.java

/**
 * Mapper that starts a 'mysqlimport' process and uses that to export rows from
 * HDFS to a MySQL database at high speed. 
 *
 * map() methods are actually provided by subclasses that read from
 * SequenceFiles (containing existing SqoopRecords) or text files

From source file com.cloudera.traffic.AveragerMapper.java

public class AveragerMapper extends Mapper<LongWritable, Text, Text, AverageWritable> {

    private AverageWritable outAverage = new AverageWritable();
    private Text id = new Text();

    @Override

From source file com.cmcc.hy.bigdata.weijifen.jobs.hubei.score.AcctPhoneMapper.java

/**
 * @Type AcctPhoneMapper.java
 * @Desc ???
 * @author alex
 * @date 2016822 ?4:29:21
 * @version

From source file com.cmcc.hy.bigdata.weijifen.jobs.hubei.score.ScoreInfoDayMapper.java

/**
 * @Type ScoreMapper.java
 * @Desc 
 * @author alex
 * @date 2016817 ?4:29:21
 * @version