org.apache.nutch.tools.arc

## Class ArcSegmentCreator.ArcSegmentCreatorMapper

- java.lang.Object
- - org.apache.hadoop.mapreduce.Mapper<Text,BytesWritable,Text,NutchWritable>
  - - org.apache.nutch.tools.arc.ArcSegmentCreator.ArcSegmentCreatorMapper

- Enclosing class:
    ArcSegmentCreator

      public static class ArcSegmentCreator.ArcSegmentCreatorMapper
      extends Mapper<Text,BytesWritable,Text,NutchWritable>

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

      `Mapper.Context`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static java.lang.String` | `URL_VERSION`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ArcSegmentCreatorMapper()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `map(Text key, BytesWritable bytes, Mapper.Context context)` Runs the Map job to translate an arc record into output for Nutch segments.
    `void` | `setup(Mapper.Context context)` Configures the job mapper.

    - ### Methods inherited from class org.apache.hadoop.mapreduce.Mapper

      `cleanup, run`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### URL_VERSION

          public static final java.lang.String URL_VERSION

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### ArcSegmentCreatorMapper

          public ArcSegmentCreatorMapper()

  - ### Method Detail

    - #### setup

          public void setup(Mapper.Context context)

      Configures the job mapper. Sets the url filters, scoring filters, url normalizers and other relevant data.

      Overrides:
        `setup` in class `Mapper<Text,BytesWritable,Text,NutchWritable>`
      Parameters:
        `context` - The task context.

    - #### map

          public void map(Text key,
                          BytesWritable bytes,
                          Mapper.Context context)
                   throws java.io.IOException,
                          java.lang.InterruptedException

      Runs the Map job to translate an arc record into output for Nutch segments.

      Overrides:
        `map` in class `Mapper<Text,BytesWritable,Text,NutchWritable>`
      Parameters:
        `key` - The arc record header.
        `bytes` - The arc record raw content bytes.
        `context` - The context of the mapreduce job.
      Throws:
        `java.io.IOException`
        `java.lang.InterruptedException`

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