org.apache.hadoop.tools.mapred
Class RetriableDirectoryCreateCommand

java.lang.Object
  org.apache.hadoop.tools.util.RetriableCommand
      org.apache.hadoop.tools.mapred.RetriableDirectoryCreateCommand

public class RetriableDirectoryCreateCommand
extends RetriableCommand

This class extends Retriable command to implement the creation of directories with retries on failure.

Field Summary

Fields inherited from class org.apache.hadoop.tools.util.RetriableCommand

description

Constructor Summary

RetriableDirectoryCreateCommand(String description)
Constructor, taking a description of the action.

Method Summary

protected Object

doExecute(Object... arguments) Implementation of RetriableCommand::doExecute().

Methods inherited from class org.apache.hadoop.tools.util.RetriableCommand

execute, setRetryPolicy

Methods inherited from class java.lang.Object

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

Constructor Detail

RetriableDirectoryCreateCommand

public RetriableDirectoryCreateCommand(String description)

Constructor, taking a description of the action.

Parameters:

description - Verbose description of the copy operation.

Method Detail

doExecute

protected Object doExecute(Object... arguments)
                    throws Exception

Implementation of RetriableCommand::doExecute(). This implements the actual mkdirs() functionality.

Specified by:

doExecute in class RetriableCommand

Parameters:

arguments - Argument-list to the command.

Returns:

Boolean. True, if the directory could be created successfully.

Throws:

Exception - IOException, on failure to create the directory.