Package gov.usgs.util

Class TimeoutProcess

java.lang.Object

gov.usgs.util.TimeoutProcess

public class TimeoutProcess
extends java.lang.Object

TimeoutProcess wraps a Process object. It is most commonly used with TimeoutProcessBuilder, which configures the process timeout (and sets the timed out state once the timeout is reached).

See Also:

Process, TimeoutProcessBuilder, ProcessTimeoutException

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TimeoutProcess(java.lang.Process process)	Construct a new TimeoutProcess.

Method Summary

Modifier and Type	Method	Description
void	destroy()	Destroys a process
byte[]	errorOutput()
int	exitValue()
java.io.InputStream	getErrorStream()
java.io.InputStream	getInputStream()
java.io.OutputStream	getOutputStream()
protected void	setTimeoutElapsed(boolean timeoutElapsed)
protected void	setTimer(java.util.Timer timer)
protected boolean	timeoutElapsed()
int	waitFor()	Wait for the process to complete, either normally or because its timeout was reached.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeoutProcess

protected TimeoutProcess(java.lang.Process process)

Construct a new TimeoutProcess.

Parameters:

process - the wrapped process.

Method Detail

destroy

public void destroy()

Destroys a process

errorOutput

public byte[] errorOutput()

Returns:

errorOutput byte array

exitValue

public int exitValue()

Returns:

exit value

getErrorStream

public java.io.InputStream getErrorStream()

Returns:

InputStream of error stream

getInputStream

public java.io.InputStream getInputStream()

Returns:

InputStream

getOutputStream

public java.io.OutputStream getOutputStream()

Returns:

OutputStream

waitFor

public int waitFor()
            throws java.lang.InterruptedException,
                   java.io.IOException,
                   ProcessTimeoutException

Wait for the process to complete, either normally or because its timeout was reached.

Returns:

exitStatus.

Throws:

java.lang.InterruptedException - if thread interruption occurs

java.io.IOException - if IO error occurs

ProcessTimeoutException - if the process timed out before exiting.

setTimeoutElapsed

protected void setTimeoutElapsed(boolean timeoutElapsed)

Parameters:

timeoutElapsed - to set

timeoutElapsed

protected boolean timeoutElapsed()

Returns:

timeoutElapsed boolean

setTimer

protected void setTimer(java.util.Timer timer)

Parameters:

timer - to set