Main Page | Class Hierarchy | Alphabetical List | Class List | File List | Class Members | File Members | Related Pages

ClusterEvent.d

Go to the documentation of this file.
00001 /*******************************************************************************
00002 
00003         @file ClusterEvent.d
00004         
00005         Copyright (C) 2004 Kris Bell
00006         
00007         This software is provided 'as-is', without any express or implied
00008         warranty. In no event will the authors be held liable for damages
00009         of any kind arising from the use of this software.
00010         
00011         Permission is hereby granted to anyone to use this software for any 
00012         purpose, including commercial applications, and to alter it and/or 
00013         redistribute it freely, subject to the following restrictions:
00014         
00015         1. The origin of this software must not be misrepresented; you must 
00016            not claim that you wrote the original software. If you use this 
00017            software in a product, an acknowledgment within documentation of 
00018            said product would be appreciated but is not required.
00019 
00020         2. Altered source versions must be plainly marked as such, and must 
00021            not be misrepresented as being the original software.
00022 
00023         3. This notice may not be removed or altered from any distribution
00024            of the source.
00025 
00026 
00027                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
00028 
00029 
00030         @version        Initial version, July 2004      
00031         @author         Kris
00032 
00033 
00034 *******************************************************************************/
00035 
00036 module mango.cluster.qos.socket.ClusterEvent;
00037 
00038 private import  mango.io.Buffer;
00039 
00040 private import  mango.cluster.model.ICluster;
00041 
00042 /*******************************************************************************
00043         
00044         The socket QOS implementation of IEvent
00045 
00046 *******************************************************************************/
00047 
00048 class ClusterEvent : IEvent
00049 {       
00050         private IEvent.Style    style;
00051         private ICluster        cluster;
00052         private IChannel        channel;
00053         private IEventListener  listener;
00054 
00055         private static char[][] styleNames = ["bulletin", "message"];
00056 
00057         /***********************************************************************
00058 
00059         ***********************************************************************/
00060         
00061         this (ICluster cluster, IChannel channel, IEvent.Style style, IEventListener listener)
00062         {
00063                 this.style = style;
00064                 this.cluster = cluster;
00065                 this.channel = channel;
00066                 this.listener = listener;
00067         }
00068 
00069         /***********************************************************************
00070 
00071         ***********************************************************************/
00072         
00073         IChannel getChannel ()
00074         {
00075                 return channel;
00076         }
00077 
00078         /***********************************************************************
00079 
00080         ***********************************************************************/
00081         
00082         IEvent.Style getStyle ()
00083         {
00084                 return style;
00085         }
00086 
00087         /***********************************************************************
00088 
00089         ***********************************************************************/
00090         
00091         char[] getStyleName ()
00092         {
00093                 return styleNames [style];
00094         }
00095 
00096         /***********************************************************************
00097 
00098         ***********************************************************************/
00099         
00100         void invoke (IPayload payload) 
00101         {
00102                 // dispatch notification
00103                 listener.notify (this, payload);
00104         }
00105 
00106         /***********************************************************************
00107 
00108                 Send a payload back to the producer. This should support all
00109                 the various event styles.                 
00110 
00111         ***********************************************************************/
00112         
00113         void reply (char[] channel, IPayload payload)
00114         in {
00115            assert (channel.length);
00116            }
00117         body
00118         {
00119                 IChannel ch = cluster.createChannel (channel);
00120 
00121                 if (style == IEvent.Style.Message)
00122                     cluster.putQueue (ch, payload);
00123                 else
00124                    cluster.broadcast (ch, payload);
00125         }
00126 }
00127 

Generated on Sun Nov 7 19:06:50 2004 for Mango by doxygen 1.3.6