com.mucommander.ui.main.tree
Class AbstractIOThreadManager

java.lang.Object
  java.lang.Thread
      com.mucommander.ui.main.tree.AbstractIOThreadManager

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

TreeIOThreadManager

public class AbstractIOThreadManager
extends java.lang.Thread

A class that monitors IOThread if it is running or has been blocked. This class maintains a list of tasks to execute and a thread that executes these tasks. It checks periodically if the IOThread is running. If IOThread has been blocked then it's killed and a new IOThread is instantiated. Then the next task from the list will be executed.

Author:

Mariusz Jakubowski

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

protected long	blockThreshold a time after i/o thread is marked as blocked
protected IOThread	ioThread a thread that executes tasks
protected java.util.List	queue a queue with tasks to execute

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

AbstractIOThreadManager(java.lang.String name, long blockThreshold)
Creates a new monitoring thread.

Method Summary

void	addTask(java.lang.Runnable task) Adds new task to execute.
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

queue

protected final java.util.List queue

a queue with tasks to execute

ioThread

protected IOThread ioThread

a thread that executes tasks

blockThreshold

protected long blockThreshold

a time after i/o thread is marked as blocked

Constructor Detail

AbstractIOThreadManager

public AbstractIOThreadManager(java.lang.String name,
                               long blockThreshold)

Creates a new monitoring thread.

Parameters:

name - a name of this thread

blockThreshold - a time after an i/o task is marked as blocked [ms]

Method Detail

addTask

public void addTask(java.lang.Runnable task)

Adds new task to execute. A task is an instance of Runnable interface. A proper exception handling within the Runnable instance have to be implemented. If this task rises an exception, this exception is printed to stderr.

Parameters:

task - a task to be executed

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread