1 files changed, 285 insertions, 0 deletions

diff --git a/OpenSim/Data/Null/NullPresenceData.cs b/OpenSim/Data/Null/NullPresenceData.cs
new file mode 100644
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+++ b/OpenSim/Data/Null/NullPresenceData.cs
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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using log4net;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Data;
+
+namespace OpenSim.Data.Null
+{
+    public class NullPresenceData : IPresenceData
+    {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        private static NullPresenceData Instance;
+
+        Dictionary<UUID, PresenceData> m_presenceData = new Dictionary<UUID, PresenceData>();
+
+        public NullPresenceData(string connectionString, string realm)
+        {
+            if (Instance == null)
+            {
+                Instance = this;
+
+                //Console.WriteLine("[XXX] NullRegionData constructor");
+            }
+        }
+
+        public bool Store(PresenceData data)
+        {
+            if (Instance != this)
+                return Instance.Store(data);
+
+//            m_log.DebugFormat("[NULL PRESENCE DATA]: Storing presence {0}", data.UserID);
+//            Console.WriteLine("HOME for " + data.UserID + " is " + (data.Data.ContainsKey("HomeRegionID") ? data.Data["HomeRegionID"] : "Not found"));
+
+            m_presenceData[data.SessionID] = data;
+            return true;
+        }
+
+        public PresenceData Get(UUID sessionID)
+        {
+            if (Instance != this)
+                return Instance.Get(sessionID);
+
+            if (m_presenceData.ContainsKey(sessionID))
+            {
+                return m_presenceData[sessionID];
+            }
+
+            return null;
+        }
+
+        public void LogoutRegionAgents(UUID regionID)
+        {
+            if (Instance != this)
+            {
+                Instance.LogoutRegionAgents(regionID);
+                return;
+            }
+
+            List<UUID> toBeDeleted = new List<UUID>();
+            foreach (KeyValuePair<UUID, PresenceData> kvp in m_presenceData)
+                if (kvp.Value.RegionID == regionID)
+                    toBeDeleted.Add(kvp.Key);
+
+            foreach (UUID u in toBeDeleted)
+                m_presenceData.Remove(u);
+        }
+
+        public bool ReportAgent(UUID sessionID, UUID regionID, string position, string lookAt)
+        {
+            if (Instance != this)
+                return Instance.ReportAgent(sessionID, regionID, position, lookAt);
+            
+            if (m_presenceData.ContainsKey(sessionID))
+            {
+                m_presenceData[sessionID].RegionID = regionID;
+                m_presenceData[sessionID].Data["Position"] = position;
+                m_presenceData[sessionID].Data["LookAt"] = lookAt;
+                return true;
+            }
+
+            return false;
+        }
+
+        public bool SetHomeLocation(string userID, UUID regionID, Vector3 position, Vector3 lookAt)
+        {
+            if (Instance != this)
+                return Instance.SetHomeLocation(userID, regionID, position, lookAt);
+
+            bool foundone = false;
+            foreach (PresenceData p in m_presenceData.Values)
+            {
+                if (p.UserID == userID)
+                {
+//                    m_log.DebugFormat(
+//                        "[NULL PRESENCE DATA]: Setting home location {0} {1} {2} for {3}", 
+//                        regionID, position, lookAt, p.UserID);
+
+                    p.Data["HomeRegionID"] = regionID.ToString();
+                    p.Data["HomePosition"] = position.ToString();
+                    p.Data["HomeLookAt"] = lookAt.ToString();
+                    foundone = true;
+                }
+            }
+
+            return foundone;
+        }
+
+        public PresenceData[] Get(string field, string data)
+        {
+            if (Instance != this)
+                return Instance.Get(field, data);
+
+//            m_log.DebugFormat(
+//                "[NULL PRESENCE DATA]: Getting presence data for field {0} with parameter {1}", field, data);
+
+            List<PresenceData> presences = new List<PresenceData>();
+            if (field == "UserID")
+            {
+                foreach (PresenceData p in m_presenceData.Values)
+                {
+                    if (p.UserID == data)
+                    {
+                        presences.Add(p);
+//                        Console.WriteLine("HOME for " + p.UserID + " is " + (p.Data.ContainsKey("HomeRegionID") ? p.Data["HomeRegionID"] : "Not found"));
+                    }
+                }
+                
+                return presences.ToArray();
+            }
+            else if (field == "SessionID")
+            {
+                UUID session = UUID.Zero;
+                if (!UUID.TryParse(data, out session))
+                    return presences.ToArray();
+
+                if (m_presenceData.ContainsKey(session))
+                {
+                    presences.Add(m_presenceData[session]);
+                    return presences.ToArray();
+                }
+            }
+            else if (field == "RegionID")
+            {
+                UUID region = UUID.Zero;
+                if (!UUID.TryParse(data, out region))
+                    return presences.ToArray();
+                foreach (PresenceData p in m_presenceData.Values)
+                    if (p.RegionID == region)
+                        presences.Add(p);
+                return presences.ToArray();
+            }
+            else
+            {
+                foreach (PresenceData p in m_presenceData.Values)
+                {
+                    if (p.Data.ContainsKey(field) && p.Data[field] == data)
+                        presences.Add(p);
+                }
+                return presences.ToArray();
+            }
+
+            return presences.ToArray();
+        }
+
+        public void Prune(string userID)
+        {
+            if (Instance != this)
+            {
+                Instance.Prune(userID);
+                return;
+            }
+
+//            m_log.DebugFormat("[NULL PRESENCE DATA]: Prune called for {0}", userID);
+
+            List<UUID> deleteSessions = new List<UUID>();
+            int online = 0;
+
+            foreach (KeyValuePair<UUID, PresenceData> kvp in m_presenceData)
+            {
+//                m_log.DebugFormat("Online: {0}", kvp.Value.Data["Online"]);
+                
+                bool on = false;
+                if (bool.TryParse(kvp.Value.Data["Online"], out on) && on)
+                    online++;
+                else
+                    deleteSessions.Add(kvp.Key);
+            }
+
+//            m_log.DebugFormat("[NULL PRESENCE DATA]: online [{0}], deleteSession.Count [{1}]", online, deleteSessions.Count);
+
+            // Leave one session behind so that we can pick up details such as home location
+            if (online == 0 && deleteSessions.Count > 0)
+                deleteSessions.RemoveAt(0);
+
+            foreach (UUID s in deleteSessions)
+                m_presenceData.Remove(s);
+        }
+
+        public bool Delete(string field, string data)
+        {
+//            m_log.DebugFormat(
+//                "[NULL PRESENCE DATA]: Deleting presence data for field {0} with parameter {1}", field, data);
+            
+            if (Instance != this)
+                return Instance.Delete(field, data);
+
+            List<UUID> presences = new List<UUID>();
+            if (field == "UserID")
+            {
+                foreach (KeyValuePair<UUID, PresenceData> p in m_presenceData)
+                    if (p.Value.UserID == data)
+                        presences.Add(p.Key);
+            }
+            else if (field == "SessionID")
+            {
+                UUID session = UUID.Zero;
+                if (UUID.TryParse(data, out session))
+                {
+                    if (m_presenceData.ContainsKey(session))
+                    {
+                        presences.Add(session);
+                    }
+                }
+            }
+            else if (field == "RegionID")
+            {
+                UUID region = UUID.Zero;
+                if (UUID.TryParse(data, out region))
+                {
+                    foreach (KeyValuePair<UUID, PresenceData> p in m_presenceData)
+                        if (p.Value.RegionID == region)
+                            presences.Add(p.Key);
+                }
+            }
+            else
+            {
+                foreach (KeyValuePair<UUID, PresenceData> p in m_presenceData)
+                {
+                    if (p.Value.Data.ContainsKey(field) && p.Value.Data[field] == data)
+                        presences.Add(p.Key);
+                }
+            }
+
+            foreach (UUID u in presences)
+                m_presenceData.Remove(u);
+
+            if (presences.Count == 0)
+                return false;
+
+            return true;
+        }
+
+    }
+}