org.gridgain.grid.kernal.processors.hadoop.v1

Class GridHadoopV1Task

java.lang.Object

org.gridgain.grid.hadoop.GridHadoopTask

org.gridgain.grid.kernal.processors.hadoop.v1.GridHadoopV1Task

Direct Known Subclasses:

GridHadoopV1CleanupTask, GridHadoopV1MapTask, GridHadoopV1ReduceTask, GridHadoopV1SetupTask

public abstract class GridHadoopV1Task
extends org.gridgain.grid.hadoop.GridHadoopTask

Extended Hadoop v1 task.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GridHadoopV1Task(org.gridgain.grid.hadoop.GridHadoopTaskInfo taskInfo) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	cancel()
protected GridHadoopV1OutputCollector	collector(org.apache.hadoop.mapred.JobConf jobConf, org.gridgain.grid.hadoop.GridHadoopTaskContext taskCtx, boolean directWrite, String fileName, org.apache.hadoop.mapred.TaskAttemptID attempt)
String	fileName() Gets file name for that task result.
boolean	isCancelled() Returns true if task is cancelled.

Methods inherited from class org.gridgain.grid.hadoop.GridHadoopTask

info, run

Methods inherited from class java.lang.Object

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

Constructor Detail

GridHadoopV1Task

protected GridHadoopV1Task(org.gridgain.grid.hadoop.GridHadoopTaskInfo taskInfo)

Constructor.

Parameters:

taskInfo - Task info.

Method Detail

fileName

public String fileName()

Gets file name for that task result.

Returns:

File name.

collector

protected GridHadoopV1OutputCollector collector(org.apache.hadoop.mapred.JobConf jobConf,
                                    org.gridgain.grid.hadoop.GridHadoopTaskContext taskCtx,
                                    boolean directWrite,
                                    @Nullable
                                    String fileName,
                                    org.apache.hadoop.mapred.TaskAttemptID attempt)
                                         throws IOException

Parameters:

jobConf - Job configuration.

taskCtx - Task context.

directWrite - Direct write flag.

fileName - File name.

attempt - Attempt of task.

Returns:

Collector.

Throws:

IOException - In case of IO exception.

cancel

public void cancel()

Specified by:

cancel in class org.gridgain.grid.hadoop.GridHadoopTask

isCancelled

public boolean isCancelled()

Returns true if task is cancelled.