Class FileWriterTaskFromProcessBuilder

java.lang.Object

org.aksw.shellgebra.exec.stage.FileWriterTaskBase

org.aksw.shellgebra.exec.stage.FileWriterTaskViaExecutor

org.aksw.shellgebra.exec.stage.FileWriterTaskFromProcessBuilder

All Implemented Interfaces:

AutoCloseable, FileWriterTask

public class FileWriterTaskFromProcessBuilder
extends FileWriterTaskViaExecutor

Writer task based on a system process created from a system call.

Nested Class Summary

Nested classes/interfaces inherited from class FileWriterTaskViaExecutor

FileWriterTaskViaExecutor.Worker

Nested classes/interfaces inherited from class FileWriterTaskBase

FileWriterTaskBase.TaskState

Field Summary

Fields inherited from class FileWriterTaskViaExecutor

lock

Fields inherited from class FileWriterTaskBase

isAbortCalled, outputPath, pathLifeCycle, state

Constructor Summary

Constructors

Constructor	Description
FileWriterTaskFromProcessBuilder(Path outputPath, PathLifeCycle pathLifeCycle, List<ProcessBuilder> processBuilders, List<FileWriterTask> inputTasks, com.google.common.io.ByteSource inputSource, org.aksw.commons.io.util.stream.OutputStreamTransform outputTransform)

Method Summary

Modifier and Type	Method	Description
void	abortActual()
protected final void	beforeExec()
protected void	onCompletion()	Called on completion - regardless whether successful or not.
protected void	prepareWriteFile()	Method that allows for setting up resources in an atomic way.
void	runWriteFile()
String	toString()

Methods inherited from class FileWriterTaskViaExecutor

abort, close, closeActual, start, waitForCompletion

Methods inherited from class FileWriterTaskBase

checkIfAbortHasBeenCalled, checkIfNew, getOutputPath, getState, isFinished, isStarted

Methods inherited from class Object

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

Constructor Details

FileWriterTaskFromProcessBuilder

public FileWriterTaskFromProcessBuilder(Path outputPath,
 PathLifeCycle pathLifeCycle,
 List<ProcessBuilder> processBuilders,
 List<FileWriterTask> inputTasks,
 com.google.common.io.ByteSource inputSource,
 org.aksw.commons.io.util.stream.OutputStreamTransform outputTransform)

Method Details

beforeExec

protected final void beforeExec()
                         throws IOException

Throws:

IOException

prepareWriteFile

protected void prepareWriteFile()
                         throws IOException

Description copied from class: FileWriterTaskBase

Method that allows for setting up resources in an atomic way. STARTING.

Specified by:

prepareWriteFile in class FileWriterTaskBase

Throws:

IOException

runWriteFile

public void runWriteFile()
                  throws org.apache.commons.exec.ExecuteException,
IOException

Specified by:

runWriteFile in class FileWriterTaskBase

Throws:

org.apache.commons.exec.ExecuteException

IOException

abortActual

public void abortActual()

Specified by:

abortActual in class FileWriterTaskViaExecutor

onCompletion

protected void onCompletion()
                     throws IOException

Description copied from class: FileWriterTaskBase

Called on completion - regardless whether successful or not. Only called if prepareWriteFile has been called before. (doWriteFile may not have been called).

Overrides:

onCompletion in class FileWriterTaskViaExecutor

Throws:

IOException

toString

public String toString()

Overrides:

toString in class FileWriterTaskViaExecutor