Class ProcessBuilderNative

java.lang.Object

org.aksw.shellgebra.processbuilder.ProcessBuilderNative

All Implemented Interfaces:

Cloneable, IProcessBuilder<ProcessBuilderNative>, IProcessBuilderCore<ProcessBuilderNative>

public class ProcessBuilderNative
extends Object
implements IProcessBuilder<ProcessBuilderNative>

Constructor Summary

Constructors

Constructor	Description
ProcessBuilderNative()
ProcessBuilderNative(ProcessBuilder delegate)

Method Summary

Modifier and Type	Method	Description
boolean	accessesStdIn()	Whether the configured command will read from stdin.
ProcessBuilderNative	clone()
List<String>	command()
ProcessBuilderNative	command(String... command)
ProcessBuilderNative	command(List<String> command)
Path	directory()
ProcessBuilderNative	directory(Path directory)
Map<String,String>	environment()
JRedirect	redirectError()
ProcessBuilderNative	redirectError(JRedirect redirect)
boolean	redirectErrorStream()
ProcessBuilderNative	redirectErrorStream(boolean redirectErrorStream)
JRedirect	redirectInput()
ProcessBuilderNative	redirectInput(JRedirect redirect)
JRedirect	redirectOutput()
ProcessBuilderNative	redirectOutput(JRedirect redirect)
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.

Methods inherited from class Object

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

Constructor Details

ProcessBuilderNative

public ProcessBuilderNative()

ProcessBuilderNative

public ProcessBuilderNative(ProcessBuilder delegate)

Method Details

clone

public ProcessBuilderNative clone()

Specified by:

clone in interface IProcessBuilderCore<ProcessBuilderNative>

Overrides:

clone in class Object

command

public List<String> command()

Specified by:

command in interface IProcessBuilder<ProcessBuilderNative>

command

public ProcessBuilderNative command(String... command)

Specified by:

command in interface IProcessBuilder<ProcessBuilderNative>

command

public ProcessBuilderNative command(List<String> command)

Specified by:

command in interface IProcessBuilder<ProcessBuilderNative>

directory

public Path directory()

Specified by:

directory in interface IProcessBuilderCore<ProcessBuilderNative>

directory

public ProcessBuilderNative directory(Path directory)

Specified by:

directory in interface IProcessBuilderCore<ProcessBuilderNative>

environment

public Map<String,String> environment()

Specified by:

environment in interface IProcessBuilderCore<ProcessBuilderNative>

redirectErrorStream

public boolean redirectErrorStream()

Specified by:

redirectErrorStream in interface IProcessBuilderCore<ProcessBuilderNative>

redirectErrorStream

public ProcessBuilderNative redirectErrorStream(boolean redirectErrorStream)

Specified by:

redirectErrorStream in interface IProcessBuilderCore<ProcessBuilderNative>

start

public Process start(ProcessRunner executor)
              throws IOException

Specified by:

start in interface IProcessBuilderCore<ProcessBuilderNative>

Throws:

IOException

redirectInput

public ProcessBuilderNative redirectInput(JRedirect redirect)

Specified by:

redirectInput in interface IProcessBuilderCore<ProcessBuilderNative>

redirectInput

public JRedirect redirectInput()

Specified by:

redirectInput in interface IProcessBuilderCore<ProcessBuilderNative>

redirectOutput

public ProcessBuilderNative redirectOutput(JRedirect redirect)

Specified by:

redirectOutput in interface IProcessBuilderCore<ProcessBuilderNative>

redirectOutput

public JRedirect redirectOutput()

Specified by:

redirectOutput in interface IProcessBuilderCore<ProcessBuilderNative>

redirectError

public ProcessBuilderNative redirectError(JRedirect redirect)

Specified by:

redirectError in interface IProcessBuilderCore<ProcessBuilderNative>

redirectError

public JRedirect redirectError()

Specified by:

redirectError in interface IProcessBuilderCore<ProcessBuilderNative>

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.

Specified by:

supportsAnonPipeRead in interface IProcessBuilderCore<ProcessBuilderNative>

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.

Specified by:

supportsAnonPipeWrite in interface IProcessBuilderCore<ProcessBuilderNative>

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.

Specified by:

supportsDirectNamedPipe in interface IProcessBuilderCore<ProcessBuilderNative>

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.

Specified by:

accessesStdIn in interface IProcessBuilderCore<ProcessBuilderNative>