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-rw-r--r--OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs76
1 files changed, 69 insertions, 7 deletions
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
index 10b83e6..55bb7dc 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
@@ -27,6 +27,7 @@
27 27
28using System; 28using System;
29using System.Collections.Generic; 29using System.Collections.Generic;
30using System.Linq;
30using System.Reflection; 31using System.Reflection;
31using log4net; 32using log4net;
32using Mono.Addins; 33using Mono.Addins;
@@ -36,6 +37,8 @@ using OpenMetaverse.StructuredData;
36using OpenSim.Framework; 37using OpenSim.Framework;
37using OpenSim.Region.Framework.Interfaces; 38using OpenSim.Region.Framework.Interfaces;
38using OpenSim.Region.Framework.Scenes; 39using OpenSim.Region.Framework.Scenes;
40using OpenSim.Services.Interfaces;
41using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
39 42
40namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups 43namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
41{ 44{
@@ -45,6 +48,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
45 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); 48 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
46 49
47 private List<Scene> m_sceneList = new List<Scene>(); 50 private List<Scene> m_sceneList = new List<Scene>();
51 private IPresenceService m_presenceService;
48 52
49 private IMessageTransferModule m_msgTransferModule = null; 53 private IMessageTransferModule m_msgTransferModule = null;
50 54
@@ -54,6 +58,27 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
54 private bool m_groupMessagingEnabled = false; 58 private bool m_groupMessagingEnabled = false;
55 private bool m_debugEnabled = true; 59 private bool m_debugEnabled = true;
56 60
61 /// <summary>
62 /// If enabled, module only tries to send group IMs to online users by querying cached presence information.
63 /// </summary>
64 private bool m_messageOnlineAgentsOnly;
65
66 /// <summary>
67 /// Cache for online users.
68 /// </summary>
69 /// <remarks>
70 /// Group ID is key, presence information for online members is value.
71 /// Will only be non-null if m_messageOnlineAgentsOnly = true
72 /// We cache here so that group messages don't constantly have to re-request the online user list to avoid
73 /// attempted expensive sending of messages to offline users.
74 /// The tradeoff is that a user that comes online will not receive messages consistently from all other users
75 /// until caches have updated.
76 /// Therefore, we set the cache expiry to just 20 seconds.
77 /// </remarks>
78 private ExpiringCache<UUID, PresenceInfo[]> m_usersOnlineCache;
79
80 private int m_usersOnlineCacheExpirySeconds = 20;
81
57 #region IRegionModuleBase Members 82 #region IRegionModuleBase Members
58 83
59 public void Initialise(IConfigSource config) 84 public void Initialise(IConfigSource config)
@@ -83,10 +108,17 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
83 return; 108 return;
84 } 109 }
85 110
111 m_messageOnlineAgentsOnly = groupsConfig.GetBoolean("MessageOnlineUsersOnly", false);
112
113 if (m_messageOnlineAgentsOnly)
114 m_usersOnlineCache = new ExpiringCache<UUID, PresenceInfo[]>();
115
86 m_debugEnabled = groupsConfig.GetBoolean("DebugEnabled", true); 116 m_debugEnabled = groupsConfig.GetBoolean("DebugEnabled", true);
87 } 117 }
88 118
89 m_log.Info("[GROUPS-MESSAGING]: GroupsMessagingModule starting up"); 119 m_log.InfoFormat(
120 "[GROUPS-MESSAGING]: GroupsMessagingModule enabled with MessageOnlineOnly = {0}, DebugEnabled = {1}",
121 m_messageOnlineAgentsOnly, m_debugEnabled);
90 } 122 }
91 123
92 public void AddRegion(Scene scene) 124 public void AddRegion(Scene scene)
@@ -126,6 +158,8 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
126 return; 158 return;
127 } 159 }
128 160
161 if (m_presenceService == null)
162 m_presenceService = scene.PresenceService;
129 163
130 m_sceneList.Add(scene); 164 m_sceneList.Add(scene);
131 165
@@ -207,12 +241,40 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
207 public void SendMessageToGroup(GridInstantMessage im, UUID groupID) 241 public void SendMessageToGroup(GridInstantMessage im, UUID groupID)
208 { 242 {
209 List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(new UUID(im.fromAgentID), groupID); 243 List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(new UUID(im.fromAgentID), groupID);
210 244
211 if (m_debugEnabled) 245 if (m_messageOnlineAgentsOnly)
212 m_log.DebugFormat( 246 {
213 "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members", 247 string[] t1 = groupMembers.ConvertAll<string>(gmd => gmd.AgentID.ToString()).ToArray();
214 groupID, groupMembers.Count); 248
215 249 // We cache in order not to overwhlem the presence service on large grids with many groups. This does
250 // mean that members coming online will not see all group members until after m_usersOnlineCacheExpirySeconds has elapsed.
251 // (assuming this is the same across all grid simulators).
252 PresenceInfo[] onlineAgents;
253 if (!m_usersOnlineCache.TryGetValue(groupID, out onlineAgents))
254 {
255 onlineAgents = m_presenceService.GetAgents(t1);
256 m_usersOnlineCache.Add(groupID, onlineAgents, m_usersOnlineCacheExpirySeconds);
257 }
258
259 HashSet<string> onlineAgentsUuidSet = new HashSet<string>();
260 Array.ForEach<PresenceInfo>(onlineAgents, pi => onlineAgentsUuidSet.Add(pi.UserID));
261
262 int allMembersCount = groupMembers.Count;
263 groupMembers = groupMembers.Where(gmd => onlineAgentsUuidSet.Contains(gmd.AgentID.ToString())).ToList();
264
265 // if (m_debugEnabled)
266 m_log.DebugFormat(
267 "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members, {2} online",
268 groupID, allMembersCount, groupMembers.Count());
269 }
270 else
271 {
272 if (m_debugEnabled)
273 m_log.DebugFormat(
274 "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members",
275 groupID, groupMembers.Count);
276 }
277
216 foreach (GroupMembersData member in groupMembers) 278 foreach (GroupMembersData member in groupMembers)
217 { 279 {
218 if (m_groupData.hasAgentDroppedGroupChatSession(member.AgentID, groupID)) 280 if (m_groupData.hasAgentDroppedGroupChatSession(member.AgentID, groupID))