com.gpudb.filesystem.common

Class IoTask

java.lang.Object

com.gpudb.filesystem.common.IoTask

All Implemented Interfaces:

Callable<Result>

public class IoTask
extends Object
implements Callable<Result>

This is an internal class and not meant to be used by the end users of the filesystem API. The consequences of using this class directly in client code is not guaranteed and maybe undesirable. This class is only used for multi-part upload and download and an instance of this class is created only by FileUploader and FileDownloader classes. This class models a single background tasks running in a thread. It implements the Callable interface and the overridden call() method is the one that executes the main logic in this class. Depending on the value of the instance variable opMode it calls either the upload() or the download() method.

Constructor Summary

Constructors

Constructor and Description
IoTask(GPUdb db, OpMode opMode, String jobId, String fileName, UploadOptions uploadOptions, DownloadOptions downloadOptions, long taskNumber, ByteBuffer dataBytes) Constructor

Method Summary

Modifier and Type	Method and Description
Result	call() This method is called automatically the thread in which the current instance of this class runs.
MultiPartDownloadInfo	getMultiPartDownloadInfo()
MultiPartUploadInfo	getMultiPartUploadInfo()
void	setMultiPartDownloadInfo(MultiPartDownloadInfo multiPartDownloadInfo)
void	setMultiPartUploadInfo(MultiPartUploadInfo multiPartUploadInfo)

Methods inherited from class java.lang.Object

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

Constructor Detail

IoTask

public IoTask(GPUdb db,
              OpMode opMode,
              String jobId,
              String fileName,
              UploadOptions uploadOptions,
              DownloadOptions downloadOptions,
              long taskNumber,
              ByteBuffer dataBytes)

Constructor

Parameters:

opMode - - Identifies whether this task is an upload/download

jobId - - Identifies the upload/download job that created this task

fileName - - String - Name of the file to be uploaded/downloaded

uploadOptions -

Method Detail

call

public Result call()

This method is called automatically the thread in which the current instance of this class runs.

Specified by:

call in interface Callable<Result>

Returns:

- Result - The result of the operation (Upload/download)

setMultiPartUploadInfo

public void setMultiPartUploadInfo(MultiPartUploadInfo multiPartUploadInfo)

setMultiPartDownloadInfo

public void setMultiPartDownloadInfo(MultiPartDownloadInfo multiPartDownloadInfo)

getMultiPartUploadInfo

public MultiPartUploadInfo getMultiPartUploadInfo()

getMultiPartDownloadInfo

public MultiPartDownloadInfo getMultiPartDownloadInfo()