3fb3d19b52
git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@3415 52acb1d6-8a22-11de-b505-999d5b087335
184 lines
7.1 KiB
C#
184 lines
7.1 KiB
C#
/*
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* CVS identifier:
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*
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* $Id: FacilityManager.java,v 1.12 2002/05/22 15:00:24 grosbois Exp $
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*
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* Class: MsgLoggerManager
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*
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* Description: Manages common facilities across threads
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*
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*
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*
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* COPYRIGHT:
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*
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* This software module was originally developed by Raphaël Grosbois and
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* Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
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* Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
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* Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
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* Centre France S.A) in the course of development of the JPEG2000
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* standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
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* software module is an implementation of a part of the JPEG 2000
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* Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
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* Systems AB and Canon Research Centre France S.A (collectively JJ2000
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* Partners) agree not to assert against ISO/IEC and users of the JPEG
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* 2000 Standard (Users) any of their rights under the copyright, not
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* including other intellectual property rights, for this software module
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* with respect to the usage by ISO/IEC and Users of this software module
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* or modifications thereof for use in hardware or software products
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* claiming conformance to the JPEG 2000 Standard. Those intending to use
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* this software module in hardware or software products are advised that
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* their use may infringe existing patents. The original developers of
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* this software module, JJ2000 Partners and ISO/IEC assume no liability
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* for use of this software module or modifications thereof. No license
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* or right to this software module is granted for non JPEG 2000 Standard
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* conforming products. JJ2000 Partners have full right to use this
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* software module for his/her own purpose, assign or donate this
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* software module to any third party and to inhibit third parties from
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* using this software module for non JPEG 2000 Standard conforming
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* products. This copyright notice must be included in all copies or
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* derivative works of this software module.
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*
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* Copyright (c) 1999/2000 JJ2000 Partners.
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* */
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using System;
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namespace CSJ2K.j2k.util
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{
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/// <summary> This class manages common facilities for multi-threaded
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/// environments, It can register different facilities for each thread,
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/// and also a default one, so that they can be referred by static
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/// methods, while possibly having different ones for different
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/// threads. Also a default facility exists that is used for threads
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/// for which no particular facility has been registerd registered.
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///
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/// <p>Currently the only kind of facilities managed is MsgLogger.</p>
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///
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/// <P>An example use of this class is if 2 instances of a decoder are running
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/// in different threads and the messages of the 2 instances should be
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/// separated.
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///
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/// <P>The default MsgLogger is a StreamMsgLogger that uses System.out as
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/// the 'out' stream and System.err as the 'err' stream, and a line width of
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/// 78. This can be changed using the registerMsgLogger() method.
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///
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/// </summary>
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/// <seealso cref="MsgLogger">
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/// </seealso>
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/// <seealso cref="StreamMsgLogger">
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///
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/// </seealso>
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public class FacilityManager
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{
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/// <summary> Returns the ProgressWatch instance registered with the current
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/// thread (the thread that calls this method). If the current
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/// thread has no registered ProgressWatch, then the default one is used.
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///
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/// </summary>
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public static ProgressWatch ProgressWatch
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{
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get
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{
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ProgressWatch pw = (ProgressWatch) watchProgList[SupportClass.ThreadClass.Current()];
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return (pw == null)?defWatchProg:pw;
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}
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}
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/// <summary>The loggers associated to different threads </summary>
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//UPGRADE_NOTE: Final was removed from the declaration of 'loggerList '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
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private static readonly System.Collections.Hashtable loggerList = System.Collections.Hashtable.Synchronized(new System.Collections.Hashtable());
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/// <summary>The default logger, for threads that have none associated with them </summary>
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private static MsgLogger defMsgLogger = new StreamMsgLogger(System.Console.OpenStandardOutput(), System.Console.OpenStandardError(), 78);
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/// <summary>The ProgressWatch instance associated to different threads </summary>
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//UPGRADE_NOTE: Final was removed from the declaration of 'watchProgList '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
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private static readonly System.Collections.Hashtable watchProgList = System.Collections.Hashtable.Synchronized(new System.Collections.Hashtable());
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/// <summary>The default ProgressWatch for threads that have none
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/// associated with them.
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/// </summary>
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private static ProgressWatch defWatchProg = null;
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internal static void registerProgressWatch(SupportClass.ThreadClass t, ProgressWatch pw)
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{
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if (pw == null)
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{
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throw new System.NullReferenceException();
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}
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if (t == null)
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{
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defWatchProg = pw;
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}
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else
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{
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watchProgList[t] = pw;
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}
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}
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/// <summary> Registers the MsgLogger 'ml' as the logging facility of the
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/// thread 't'. If any other logging facility was registered with
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/// the thread 't' it is overriden by 'ml'. If 't' is null then
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/// 'ml' is taken as the default message logger that is used for
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/// threads that have no MsgLogger registered.
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///
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/// </summary>
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/// <param name="t">The thread to associate with 'ml'
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///
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/// </param>
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/// <param name="ml">The MsgLogger to associate with therad ml
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///
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/// </param>
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internal static void registerMsgLogger(SupportClass.ThreadClass t, MsgLogger ml)
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{
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if (ml == null)
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{
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throw new System.NullReferenceException();
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}
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if (t == null)
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{
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defMsgLogger = ml;
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}
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else
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{
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loggerList[t] = ml;
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}
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}
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/// <summary> Returns the MsgLogger registered with the current thread (the
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/// thread that calls this method). If the current thread has no
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/// registered MsgLogger then the default message logger is
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/// returned.
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///
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/// </summary>
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/// <returns> The MsgLogger registerd for the current thread, or the
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/// default one if there is none registered for it.
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///
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/// </returns>
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public static MsgLogger getMsgLogger()
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{
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MsgLogger ml = (MsgLogger) loggerList[SupportClass.ThreadClass.Current()];
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return (ml == null)?defMsgLogger:ml;
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}
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/// <summary> Returns the MsgLogger registered with the thread 't' (the
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/// thread that calls this method). If the thread 't' has no
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/// registered MsgLogger then the default message logger is
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/// returned.
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///
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/// </summary>
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/// <param name="t">The thread for which to return the MsgLogger
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///
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/// </param>
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/// <returns> The MsgLogger registerd for the current thread, or the
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/// default one if there is none registered for it.
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///
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/// </returns>
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internal static MsgLogger getMsgLogger(SupportClass.ThreadClass t)
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{
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MsgLogger ml = (MsgLogger) loggerList[t];
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return (ml == null)?defMsgLogger:ml;
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}
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}
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} |