src/registry.vala

   1 /*
   2  * registry - zavai resource registry
   3  *
   4  * Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 using GLib;
  22 using Gee;
  23
  24 namespace zavai {
  25
  26 public class Registry : Object, Resource
  27 {
  28         HashMap<string, Resource> memb_resources;
  29         HashMap<string, Service> memb_services;
  30         HashMap<string, Applet> memb_applets;
  31         HashMap<string, Menu> memb_menus;
  32         protected ArrayList<Resource> registration_order;
  33         public DBus.Connection sbus;
  34     public string bus_name;
  35
  36         public Registry()
  37         {
  38                 memb_resources = new HashMap<string, Resource>(str_hash, str_equal);
  39                 memb_services = new HashMap<string, Service>(str_hash, str_equal);
  40                 memb_applets = new HashMap<string, Applet>(str_hash, str_equal);
  41                 memb_menus = new HashMap<string, Menu>(str_hash, str_equal);
  42                 registration_order = new ArrayList<Resource>();
  43                 sbus = DBus.Bus.get(DBus.BusType.SYSTEM);
  44
  45         bus_name = DBus.bus_get_unique_name(sbus.get_connection());
  46         zavai.log.info("My bus name: " + bus_name);
  47
  48         dynamic DBus.Object tmp_dbus = sbus.get_object(
  49             "org.freedesktop.DBus",
  50             "/org/freedesktop/DBus",
  51             "org.freedesktop.DBus");
  52         bus_name = "org.enricozini.zavai";
  53         uint res = tmp_dbus.RequestName(bus_name, (uint)DBus.NameFlag.DO_NOT_QUEUE);
  54         switch (res)
  55         {
  56             case DBus.RequestNameReply.PRIMARY_OWNER:
  57                 zavai.log.info("Registered to dbus as " + bus_name);
  58                 break;
  59             case DBus.RequestNameReply.IN_QUEUE:
  60                 zavai.log.info("In queue, but I asked not to");
  61                 break;
  62             case DBus.RequestNameReply.EXISTS:
  63                 zavai.log.info(bus_name + " already exists");
  64                 break;
  65             case DBus.RequestNameReply.ALREADY_OWNER:
  66                 zavai.log.info("I already own the name " + bus_name + " but I do not remember asking for it");
  67                 break;
  68         }
  69         }
  70
  71         public void shutdown()
  72         {
  73                 // Shutdown in reverse registration order
  74                 for (int i = registration_order.size - 1; i >= 0; --i)
  75                         registration_order[i].shutdown();
  76         }
  77
  78         public void register_resource(string name, Resource obj)
  79         {
  80                 memb_resources[name] = obj;
  81                 registration_order.add(obj);
  82         }
  83
  84         public void register_service(Service obj)
  85         {
  86                 memb_services[obj.name] = obj;
  87                 registration_order.add(obj);
  88         }
  89
  90         public void register_applet(string name, Applet obj)
  91         {
  92                 memb_applets[name] = obj;
  93                 registration_order.add(obj);
  94         }
  95
  96         public void register_menu(string name, Menu obj)
  97         {
  98                 memb_applets[name] = obj;
  99                 memb_menus[name] = obj;
 100                 registration_order.add(obj);
 101         }
 102
 103         public Resource? getr(string name)
 104         {
 105                 if (name in memb_resources)
 106                         return memb_resources[name];
 107                 else
 108                 {
 109                         log.error("getr: no resource found: " + name);
 110                         return null;
 111                 }
 112         }
 113
 114         public Service? gets(string name)
 115         {
 116                 if (name in memb_services)
 117                         return memb_services[name];
 118                 else
 119                 {
 120                         log.error("gets: no service found: " + name);
 121                         return null;
 122                 }
 123         }
 124
 125         public Applet? geta(string name)
 126         {
 127                 if (name in memb_applets)
 128                         return memb_applets[name];
 129                 else
 130                 {
 131                         log.error("geta: no applet found: " + name);
 132                         return null;
 133                 }
 134         }
 135
 136         public Menu? getmenu(string name)
 137         {
 138                 if (name in memb_menus)
 139                         return memb_menus[name];
 140                 else
 141                 {
 142                         log.error("getmenu: no menu found: " + name);
 143                         return null;
 144                 }
 145         }
 146 }
 147
 148 zavai.Registry registry;
 149
 150 }
 151