ome.smuggler.core.io

Class CommandRunner

java.lang.Object

ome.smuggler.core.io.CommandRunner

public class CommandRunner
extends java.lang.Object

Utility to run an external process redirecting both its error and output streams to a file.

Constructor Summary

Constructors

Constructor and Description
CommandRunner(util.runtime.CommandBuilder command) Creates a new instance to run a given process.

Method Summary

Modifier and Type	Method and Description
<T> util.object.Pair<java.lang.Integer,T>	exec(java.util.function.Function<java.io.InputStream,T> outputReader) Runs the process redirecting both its error and output streams to an input stream that is given to a consumer to read.
int	exec(java.nio.file.Path outputFile) Runs the process redirecting both its error and output streams to the specified file.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandRunner

public CommandRunner(util.runtime.CommandBuilder command)

Creates a new instance to run a given process.

Parameters:

command - the command to start the process.

Throws:

java.lang.NullPointerException - if the argument is null.

Method Detail

exec

public int exec(java.nio.file.Path outputFile)
         throws java.io.IOException,
                java.lang.InterruptedException

Runs the process redirecting both its error and output streams to the specified file.

Parameters:

outputFile - the file to redirect the process's streams to.

Returns:

the process's exit status.

Throws:

java.io.IOException - if an I/O error occurs while running the process.

java.lang.InterruptedException - if the current thread is interrupted before the spawned process terminates.

exec

public <T> util.object.Pair<java.lang.Integer,T> exec(java.util.function.Function<java.io.InputStream,T> outputReader)
                                               throws java.io.IOException,
                                                      java.lang.InterruptedException

Runs the process redirecting both its error and output streams to an input stream that is given to a consumer to read.

Type Parameters:

T - any type.

Parameters:

outputReader - reads the process's output.

Returns:

the process's exit status and the output result as read by the output reader.

Throws:

java.io.IOException - if an I/O error occurs while running the process.

java.lang.InterruptedException - if the current thread is interrupted before the spawned process terminates.