com.sh.common.exec

类 ExecuteWatchdog

java.lang.Object

com.sh.common.exec.ExecuteWatchdog

所有已实现的接口:

TimeoutObserver

public class ExecuteWatchdog
extends java.lang.Object
implements TimeoutObserver

Description: Title:首亨软件 - CRM、TSS、ERP等信息化管理软件

版本:

3.0

作者:

江兴春

字段概要

字段

限定符和类型	字段和说明
static long	INFINITE_TIMEOUT The marker for an infinite timeout

构造器概要

构造器

构造器和说明
ExecuteWatchdog(long timeout) Creates a new watchdog with a given timeout.

方法概要

限定符和类型	方法和说明
void	checkException() This method will rethrow the exception that was possibly caught during the run of the process.
void	destroyProcess() Destroys the running process manually.
boolean	isWatching() Indicates whether or not the watchdog is still monitoring the process.
boolean	killedProcess() Indicates whether the last process run was killed.
void	start(java.lang.Process process) Watches the given process and terminates it, if it runs for too long.
void	stop() Stops the watcher.
void	timeoutOccured(Watchdog w) Called after watchdog has finished.

从类继承的方法 java.lang.Object

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

字段详细资料

INFINITE_TIMEOUT

public static final long INFINITE_TIMEOUT

The marker for an infinite timeout

另请参阅:

常量字段值

构造器详细资料

ExecuteWatchdog

public ExecuteWatchdog(long timeout)

Creates a new watchdog with a given timeout.

参数:

timeout - the timeout for the process in milliseconds. It must be greater than 0 or 'INFINITE_TIMEOUT'

方法详细资料

start

public void start(java.lang.Process process)

Watches the given process and terminates it, if it runs for too long. All information from the previous run are reset.

参数:

process - the process to monitor. It cannot be null

抛出:

java.lang.IllegalStateException - if a process is still being monitored.

stop

public void stop()

Stops the watcher. It will notify all threads possibly waiting on this object.

destroyProcess

public void destroyProcess()

Destroys the running process manually.

timeoutOccured

public void timeoutOccured(Watchdog w)

Called after watchdog has finished.

指定者:

timeoutOccured 在接口中 TimeoutObserver

参数:

w - the watchdog that timed out.

checkException

public void checkException()
                    throws java.lang.Exception

This method will rethrow the exception that was possibly caught during the run of the process. It will only remains valid once the process has been terminated either by 'error', timeout or manual intervention. Information will be discarded once a new process is ran.

抛出:

java.lang.Exception - a wrapped exception over the one that was silently swallowed and stored during the process run.

isWatching

public boolean isWatching()

Indicates whether or not the watchdog is still monitoring the process.

返回:

true if the process is still running, otherwise false.

killedProcess

public boolean killedProcess()

Indicates whether the last process run was killed.

返回:

true if the process was killed false.