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com.eireneh.util
Class ThreadUtil  

java.lang.Object
  com.eireneh.util.ThreadUtil

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public class ThreadUtil

extends java.lang.Object

Various utilities for examining the running Threads and controlling their execution.

Distribution Licence: Project B is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. The License is available on the internet here, by writing to Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA, Or locally at the Licence link below. The copyright to this program is held by it's authors.

Version:

D9.I8.T3

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Constructor Summary

ThreadUtil()

 

Method Summary
private static void	addItem(java.util.Vector vec, int depth, java.lang.String item)           Private, used by getListing.
static java.lang.ThreadGroup	findRoot()           Find the root ThreadGroup by ascending the Thread tree
static java.lang.String[]	getListing()           Create a StringArray (mostly for debugging) detailing the current Threads, starting at the root ThreadGroup
static java.lang.String[]	getListing(java.lang.ThreadGroup base)           Create a StringArray (mostly for debugging) detailing the current Threads, starting at the specified ThreadGroup
static java.lang.Object	invoke(java.lang.Object base, java.lang.String called_method_name, java.lang.Object[] called_params)           Call a static method on a class given a sting
static java.lang.Object	invoke(java.lang.String call, java.lang.Object[] called_params)           Call a static method on a class given a sting
private static void	listThread(java.util.Vector vec, int depth, java.lang.Thread thread)           Private, used by getListing.
private static void	listThreads(java.util.Vector vec, int depth, java.lang.ThreadGroup group)           Private, used by getListing.
static void	soundSleep(long millis)           Sleep and don't think about throwing.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

ThreadUtil

public ThreadUtil()

Method Detail

invoke

public static java.lang.Object invoke(java.lang.Object base,
                                      java.lang.String called_method_name,
                                      java.lang.Object[] called_params)
                               throws java.lang.ClassNotFoundException,
                                      java.lang.NoSuchMethodException,
                                      java.lang.IllegalAccessException,
                                      java.lang.reflect.InvocationTargetException

Call a static method on a class given a sting

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invoke

public static java.lang.Object invoke(java.lang.String call,
                                      java.lang.Object[] called_params)
                               throws java.lang.ClassNotFoundException,
                                      java.lang.NoSuchMethodException,
                                      java.lang.IllegalAccessException,
                                      java.lang.reflect.InvocationTargetException

Call a static method on a class given a sting

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soundSleep

public static void soundSleep(long millis)

Sleep and don't think about throwing. Mostly when a thread calls sleep you need to wrap it in a special try-catch block to get hold of the InterruptedException - which is rarely called and mostly ignored. This code takes care of the ignoring, and simply logs some stuff if InterruptedException do happen.

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findRoot

public static java.lang.ThreadGroup findRoot()

Find the root ThreadGroup by ascending the Thread tree

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getListing

public static java.lang.String[] getListing()

Create a StringArray (mostly for debugging) detailing the current Threads, starting at the root ThreadGroup

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getListing

public static java.lang.String[] getListing(java.lang.ThreadGroup base)

Create a StringArray (mostly for debugging) detailing the current Threads, starting at the specified ThreadGroup

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listThreads

private static void listThreads(java.util.Vector vec,
                                int depth,
                                java.lang.ThreadGroup group)

Private, used by getListing. Adds to a Vector the sub-threads

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listThread

private static void listThread(java.util.Vector vec,
                               int depth,
                               java.lang.Thread thread)

Private, used by getListing. Adds to a Vector the sub-threads

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addItem

private static void addItem(java.util.Vector vec,
                            int depth,
                            java.lang.String item)

Private, used by getListing. Adds to a Vector the sub-threads

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