Package com.github.fracpete.processoutput4j.output

Class AbstractProcessOutput

java.lang.Object

com.github.fracpete.processoutput4j.output.AbstractProcessOutput

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

CollectingProcessOutput, ConsoleOutputProcessOutput, StreamingProcessOutput

public abstract class AbstractProcessOutput
extends java.lang.Object
implements java.io.Serializable

Ancestor for classes that give access to the output generated by a process.

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String[]	m_Command	the command.
protected java.lang.String[]	m_Environment	the environment variables.
protected int	m_ExitCode	the exit code.
protected java.lang.Process	m_Process	the process.
protected AbstractProcessReader	m_ReaderStdErr	for monitoring stderr.
protected AbstractProcessReader	m_ReaderStdOut	for monitoring stdout.
protected AbstractProcessRunnable	m_RunnableTimeout	for monitoring timeouts.
protected boolean	m_TimedOut	whether the process has timed out.
protected int	m_TimeOut	the timeout for the process in seconds (ignored if < 1).

Constructor Summary

Constructors

Constructor	Description
AbstractProcessOutput()	Starts the monitoring process.

Method Summary

Modifier and Type	Method	Description
protected abstract AbstractProcessReader	configureStdErr()	Configures the reader for stderr.
protected abstract AbstractProcessReader	configureStdOut()	Configures the reader for stdout.
protected AbstractProcessRunnable	configureTimeOutMonitor()	Configures the runnable for watching for time outs.
void	destroy()	Destroys the process if possible.
void	flush()	Flushes the readers.
java.lang.String[]	getCommand()	Returns the command that was used for the process.
java.lang.String[]	getEnvironment()	Returns the environment.
int	getExitCode()	Returns the exit code.
java.lang.Process	getProcess()	Returns the process.
int	getTimeOut()	Returns the timeout for the process in seconds.
boolean	hasSucceeded()	Returns whether the process has succeeded.
boolean	hasTimedOut()	Returns whether the process timed out and got terminated.
protected void	initialize()	For initializing the members.
void	monitor(java.lang.ProcessBuilder builder)	Performs the actual process monitoring.
void	monitor(java.lang.String[] cmd, java.lang.String[] env, java.lang.String input, java.lang.Process process)	Performs the actual process monitoring.
void	monitor(java.lang.String input, java.lang.ProcessBuilder builder)	Performs the actual process monitoring.
void	monitor(java.lang.String cmd, java.lang.String[] env, java.lang.Process process)	Performs the actual process monitoring.
void	monitor(java.lang.String cmd, java.lang.String[] env, java.lang.String input, java.lang.Process process)	Performs the actual process monitoring.
void	setTimeOut(int value)	Sets the timeout for the process in seconds.
java.lang.String	toString()	Returns a short description string.

Methods inherited from class java.lang.Object

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

Field Detail

m_Command

protected java.lang.String[] m_Command

the command.

m_Environment

protected java.lang.String[] m_Environment

the environment variables.

m_ExitCode

protected int m_ExitCode

the exit code.

m_Process

protected transient java.lang.Process m_Process

the process.

m_TimeOut

protected int m_TimeOut

the timeout for the process in seconds (ignored if < 1).

m_TimedOut

protected boolean m_TimedOut

whether the process has timed out.

m_ReaderStdErr

protected transient AbstractProcessReader m_ReaderStdErr

for monitoring stderr.

m_ReaderStdOut

protected transient AbstractProcessReader m_ReaderStdOut

for monitoring stdout.

m_RunnableTimeout

protected transient AbstractProcessRunnable m_RunnableTimeout

for monitoring timeouts.

Constructor Detail

AbstractProcessOutput

public AbstractProcessOutput()

Starts the monitoring process.

Method Detail

initialize

protected void initialize()

For initializing the members.

setTimeOut

public void setTimeOut(int value)

Sets the timeout for the process in seconds.

Parameters:

value - the timeout (less than 1 for no timeout)

getTimeOut

public int getTimeOut()

Returns the timeout for the process in seconds.

Returns:

the timeout (less than 1 for no timeout)

monitor

public void monitor(java.lang.ProcessBuilder builder)
             throws java.lang.Exception

Performs the actual process monitoring.

Parameters:

builder - the process builder to monitor

Throws:

java.lang.Exception - if writing to stdin fails

monitor

public void monitor(java.lang.String input,
                    java.lang.ProcessBuilder builder)
             throws java.lang.Exception

Performs the actual process monitoring.

Parameters:

builder - the process builder to monitor

Throws:

java.lang.Exception - if writing to stdin fails

monitor

public void monitor(java.lang.String cmd,
                    java.lang.String[] env,
                    java.lang.Process process)
             throws java.lang.Exception

Performs the actual process monitoring.

Parameters:

cmd - the command that was used

env - the environment

process - the process to monitor

Throws:

java.lang.Exception - if writing to stdin fails

monitor

public void monitor(java.lang.String cmd,
                    java.lang.String[] env,
                    java.lang.String input,
                    java.lang.Process process)
             throws java.lang.Exception

Performs the actual process monitoring.

Parameters:

cmd - the command that was used

env - the environment

input - the input to be written to the process via stdin, ignored if null

process - the process to monitor

Throws:

java.lang.Exception - if writing to stdin fails

monitor

public void monitor(java.lang.String[] cmd,
                    java.lang.String[] env,
                    java.lang.String input,
                    java.lang.Process process)
             throws java.lang.Exception

Performs the actual process monitoring.

Parameters:

cmd - the command that was used

env - the environment

input - the input to be written to the process via stdin, ignored if null

process - the process to monitor

Throws:

java.lang.Exception - if writing to stdin fails

configureStdErr

protected abstract AbstractProcessReader configureStdErr()

Configures the reader for stderr.

Returns:

the configured reader

configureStdOut

protected abstract AbstractProcessReader configureStdOut()

Configures the reader for stdout.

Returns:

the configured reader

configureTimeOutMonitor

protected AbstractProcessRunnable configureTimeOutMonitor()

Configures the runnable for watching for time outs.

Returns:

the configured runnable

getCommand

public java.lang.String[] getCommand()

Returns the command that was used for the process.

Returns:

the command

getEnvironment

public java.lang.String[] getEnvironment()

Returns the environment.

Returns:

the environment, null if process inherited current one

hasSucceeded

public boolean hasSucceeded()

Returns whether the process has succeeded.

Returns:

true if succeeded, i.e., exit code = 0 and not timedout

See Also:

hasTimedOut()

getExitCode

public int getExitCode()

Returns the exit code.

Returns:

the exit code

hasTimedOut

public boolean hasTimedOut()

Returns whether the process timed out and got terminated.

Returns:

true if timedout

See Also:

getTimeOut(), setTimeOut(int)

getProcess

public java.lang.Process getProcess()

Returns the process.

Returns:

the process, null if not available

flush

public void flush()

Flushes the readers.

destroy

public void destroy()

Destroys the process if possible.

toString

public java.lang.String toString()

Returns a short description string.

Overrides:

toString in class java.lang.Object

Returns:

the description