Class ProcessBuilderFinalPlacement

java.lang.Object

org.aksw.shellgebra.processbuilder.ProcessBuilderCore<ProcessBuilderFinalPlacement>

org.aksw.vshell.registry.ProcessBuilderFinalPlacement

All Implemented Interfaces:

Cloneable, IProcessBuilderCore<ProcessBuilderFinalPlacement>

public class ProcessBuilderFinalPlacement
extends ProcessBuilderCore<ProcessBuilderFinalPlacement>

Constructor Summary

Constructors

Constructor	Description
ProcessBuilderFinalPlacement(FileMapper fileMapper, ExecSiteResolver resolver, CommandCatalog commandCatalog)

Method Summary

Modifier and Type	Method	Description
boolean	accessesStdIn()	Whether the configured command will read from stdin.
protected void	applySettings(ProcessBuilderFinalPlacement target)
protected ProcessBuilderFinalPlacement	cloneActual()
FinalPlacement	command()
ProcessBuilderFinalPlacement	command(FinalPlacement placement)
ExecSiteResolver	execSiteResolver()
ProcessBuilderFinalPlacement	execSiteResolver(ExecSiteResolver resolver)
FileMapper	fileMapper()
ProcessBuilderFinalPlacement	fileMapper(FileMapper fileMapper)
ExecSiteToProcessDispatcher	newDispatcher(ProcessRunner context)
Process	start(ProcessRunner executor)
boolean	supportsAnonPipeRead()	Whether the process builder can read from anonymous pipes.
boolean	supportsAnonPipeWrite()	Whether the process builder can write to an anonymous pipe.
boolean	supportsDirectNamedPipe()	Whether a named pipe can be used with the process builder without risking blocking due to multiple connections being made to it.
IProcessBuilderCore<?>	toProcessBuilder(FinalPlacement placement, ProcessRunner context)

Methods inherited from class ProcessBuilderCore

applySettings, clone, directory, directory, environment, redirectError, redirectError, redirectErrorStream, redirectErrorStream, redirectInput, redirectInput, redirectOutput, redirectOutput, self

Methods inherited from class Object

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

Constructor Details

ProcessBuilderFinalPlacement

public ProcessBuilderFinalPlacement(FileMapper fileMapper,
 ExecSiteResolver resolver,
 CommandCatalog commandCatalog)

Method Details

command

public ProcessBuilderFinalPlacement command(FinalPlacement placement)

command

public FinalPlacement command()

fileMapper

public FileMapper fileMapper()

fileMapper

public ProcessBuilderFinalPlacement fileMapper(FileMapper fileMapper)

execSiteResolver

public ExecSiteResolver execSiteResolver()

execSiteResolver

public ProcessBuilderFinalPlacement execSiteResolver(ExecSiteResolver resolver)

cloneActual

protected ProcessBuilderFinalPlacement cloneActual()

Specified by:

cloneActual in class ProcessBuilderCore<ProcessBuilderFinalPlacement>

applySettings

protected void applySettings(ProcessBuilderFinalPlacement target)

start

public Process start(ProcessRunner executor)
              throws IOException

Throws:

IOException

newDispatcher

public ExecSiteToProcessDispatcher newDispatcher(ProcessRunner context)

toProcessBuilder

public IProcessBuilderCore<?> toProcessBuilder(FinalPlacement placement,
 ProcessRunner context)

supportsAnonPipeRead

public boolean supportsAnonPipeRead()

Description copied from interface: IProcessBuilderCore

Whether the process builder can read from anonymous pipes. Docker containers can only bind-mount named pipes but not anonymous pipes. When building pipelines, this flag is used to avoid needless intermediate anon pipes where named ones can be used directly. For pipelines, this is the value of the first process builder.

supportsAnonPipeWrite

public boolean supportsAnonPipeWrite()

Description copied from interface: IProcessBuilderCore

Whether the process builder can write to an anonymous pipe. Docker containers can only bind-mount named pipes but not anonymous pipes. When building pipelines, this flag is used to avoid needless intermediate anon pipes where named ones can be used directly. For pipelines, this is the value of the last process builder.

supportsDirectNamedPipe

public boolean supportsDirectNamedPipe()

Description copied from interface: IProcessBuilderCore

Whether a named pipe can be used with the process builder without risking blocking due to multiple connections being made to it. This method must only return true if only a single connection to that pipe will be openend. A process builder for host or docker may return true. But a group with two or more 'true-returning' members will return false.

accessesStdIn

public boolean accessesStdIn()

Description copied from interface: IProcessBuilderCore

Whether the configured command will read from stdin. Used to avoid generation of needless named or anon pipes such as in "echo foo | echo bar": where the second link does not read the data from the prior link.