1 files changed, 824 insertions, 0 deletions

diff --git a/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs b/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs
new file mode 100644
index 0000000..f789626
--- /dev/null
+++ b/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs
@@ -0,0 +1,824 @@
+/*
+ * 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.Generic;
+using System.Reflection;
+using System.Threading;
+
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+
+using OpenMetaverse;
+
+namespace OpenSim.Groups
+{
+    public delegate ExtendedGroupRecord GroupRecordDelegate();
+    public delegate GroupMembershipData GroupMembershipDelegate();
+    public delegate List<GroupMembershipData> GroupMembershipListDelegate();
+    public delegate List<ExtendedGroupMembersData> GroupMembersListDelegate();
+    public delegate List<GroupRolesData> GroupRolesListDelegate();
+    public delegate List<ExtendedGroupRoleMembersData> RoleMembersListDelegate();
+    public delegate GroupNoticeInfo NoticeDelegate();
+    public delegate List<ExtendedGroupNoticeData> NoticeListDelegate();
+    public delegate void VoidDelegate();
+    public delegate bool BooleanDelegate();
+
+    public class RemoteConnectorCacheWrapper
+    {
+        private ForeignImporter m_ForeignImporter;
+
+        private Dictionary<string, bool> m_ActiveRequests = new Dictionary<string, bool>();
+        private const int GROUPS_CACHE_TIMEOUT = 5 * 60; // 5 minutes
+
+        // This all important cache cahces objects of different types:
+        // group-<GroupID> or group-<Name>          => ExtendedGroupRecord
+        // active-<AgentID>                         => GroupMembershipData
+        // membership-<AgentID>-<GroupID>           => GroupMembershipData
+        // memberships-<AgentID>                    => List<GroupMembershipData>
+        // members-<RequestingAgentID>-<GroupID>    => List<ExtendedGroupMembersData>
+        // role-<RoleID>                            => GroupRolesData
+        // roles-<GroupID>                          => List<GroupRolesData> ; all roles in the group
+        // roles-<GroupID>-<AgentID>                => List<GroupRolesData> ; roles that the agent has
+        // rolemembers-<RequestingAgentID>-<GroupID> => List<ExtendedGroupRoleMembersData>
+        // notice-<noticeID>                        => GroupNoticeInfo
+        // notices-<GroupID>                        => List<ExtendedGroupNoticeData>
+        private ExpiringCache<string, object> m_Cache = new ExpiringCache<string, object>();
+
+        public RemoteConnectorCacheWrapper(IUserManagement uman)
+        {
+            m_ForeignImporter = new ForeignImporter(uman);
+        }
+
+        public UUID CreateGroup(UUID RequestingAgentID, GroupRecordDelegate d)
+        {
+            //m_log.DebugFormat("[Groups.RemoteConnector]: Creating group {0}", name);
+            //reason = string.Empty;
+
+            //ExtendedGroupRecord group = m_GroupsService.CreateGroup(RequestingAgentID.ToString(), name, charter, showInList, insigniaID,
+            //    membershipFee, openEnrollment, allowPublish, maturePublish, founderID, out reason);
+            ExtendedGroupRecord group = d();
+
+            if (group == null)
+                return UUID.Zero;
+
+            if (group.GroupID != UUID.Zero)
+                lock (m_Cache)
+                {
+                    m_Cache.Add("group-" + group.GroupID.ToString(), group, GROUPS_CACHE_TIMEOUT);
+                    if (m_Cache.Contains("memberships-" + RequestingAgentID.ToString()))
+                        m_Cache.Remove("memberships-" + RequestingAgentID.ToString());
+                }
+
+            return group.GroupID;
+        }
+
+        public bool UpdateGroup(UUID groupID, GroupRecordDelegate d)
+        {
+            //reason = string.Empty;
+            //ExtendedGroupRecord group = m_GroupsService.UpdateGroup(RequestingAgentID, groupID, charter, showInList, insigniaID, membershipFee, openEnrollment, allowPublish, maturePublish);
+            ExtendedGroupRecord group = d();
+
+            if (group != null && group.GroupID != UUID.Zero)
+                lock (m_Cache)
+                    m_Cache.AddOrUpdate("group-" + group.GroupID.ToString(), group, GROUPS_CACHE_TIMEOUT);
+            return true;
+        }
+
+        public ExtendedGroupRecord GetGroupRecord(string RequestingAgentID, UUID GroupID, string GroupName, GroupRecordDelegate d)
+        {
+            //if (GroupID == UUID.Zero && (GroupName == null || GroupName != null && GroupName == string.Empty))
+            //    return null;
+
+            object group = null;
+            bool firstCall = false;
+            string cacheKey = "group-";
+            if (GroupID != UUID.Zero)
+                cacheKey += GroupID.ToString();
+            else
+                cacheKey += GroupName;
+
+            //m_log.DebugFormat("[XXX]: GetGroupRecord {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out group))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetGroupRecord {0} cached!", cacheKey);
+                        return (ExtendedGroupRecord)group;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    //group = m_GroupsService.GetGroupRecord(RequestingAgentID, GroupID, GroupName);
+                    group = d();
+
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, group, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (ExtendedGroupRecord)group;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public bool AddAgentToGroup(string RequestingAgentID, string AgentID, UUID GroupID, GroupMembershipDelegate d)
+        {
+            GroupMembershipData membership = d();
+            if (membership == null)
+                return false;
+
+            lock (m_Cache)
+            {
+                // first, remove everything! add a user is a heavy-duty op
+                m_Cache.Clear();
+
+                m_Cache.AddOrUpdate("active-" + AgentID.ToString(), membership, GROUPS_CACHE_TIMEOUT);
+                m_Cache.AddOrUpdate("membership-" + AgentID.ToString() + "-" + GroupID.ToString(), membership, GROUPS_CACHE_TIMEOUT);
+            }
+
+
+            return true;
+        }
+
+        public void RemoveAgentFromGroup(string RequestingAgentID, string AgentID, UUID GroupID, VoidDelegate d)
+        {
+            d();
+
+            lock (m_Cache)
+            {
+                string cacheKey = "active-" + AgentID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "memberships-" + AgentID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "members-" + RequestingAgentID.ToString() + "-" + GroupID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "roles-" + "-" + GroupID.ToString() + "-" + AgentID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+            }
+        }
+
+        public void SetAgentActiveGroup(string AgentID, GroupMembershipDelegate d)
+        {
+            GroupMembershipData activeGroup = d();
+            if (activeGroup != null)
+            {
+                string cacheKey = "active-" + AgentID.ToString();
+                lock (m_Cache)
+                    if (m_Cache.Contains(cacheKey))
+                        m_Cache.AddOrUpdate(cacheKey, activeGroup, GROUPS_CACHE_TIMEOUT);
+            }
+        }
+
+        public ExtendedGroupMembershipData GetAgentActiveMembership(string AgentID, GroupMembershipDelegate d)
+        {
+            object membership = null;
+            bool firstCall = false;
+            string cacheKey = "active-" + AgentID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetAgentActiveMembership {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out membership))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetAgentActiveMembership {0} cached!", cacheKey);
+                        return (ExtendedGroupMembershipData)membership;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    membership = d();
+
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, membership, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (ExtendedGroupMembershipData)membership;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+
+        }
+
+        public ExtendedGroupMembershipData GetAgentGroupMembership(string AgentID, UUID GroupID, GroupMembershipDelegate d)
+        {
+            object membership = null;
+            bool firstCall = false;
+            string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetAgentGroupMembership {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out membership))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetAgentGroupMembership {0}", cacheKey);
+                        return (ExtendedGroupMembershipData)membership;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    membership = d();
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, membership, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (ExtendedGroupMembershipData)membership;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public List<GroupMembershipData> GetAgentGroupMemberships(string AgentID, GroupMembershipListDelegate d)
+        {
+            object memberships = null;
+            bool firstCall = false;
+            string cacheKey = "memberships-" + AgentID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetAgentGroupMemberships {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out memberships))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetAgentGroupMemberships {0} cached!", cacheKey);
+                        return (List<GroupMembershipData>)memberships;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    memberships = d();
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, memberships, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (List<GroupMembershipData>)memberships;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public List<GroupMembersData> GetGroupMembers(string RequestingAgentID, UUID GroupID, GroupMembersListDelegate d)
+        {
+            object members = null;
+            bool firstCall = false;
+            // we need to key in also on the requester, because different ppl have different view privileges
+            string cacheKey = "members-" + RequestingAgentID.ToString() + "-" + GroupID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetGroupMembers {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out members))
+                    {
+                        List<ExtendedGroupMembersData> xx = (List<ExtendedGroupMembersData>)members;
+                        return xx.ConvertAll<GroupMembersData>(new Converter<ExtendedGroupMembersData, GroupMembersData>(m_ForeignImporter.ConvertGroupMembersData));
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    List<ExtendedGroupMembersData> _members = d();
+
+                    if (_members != null && _members.Count > 0)
+                        members = _members.ConvertAll<GroupMembersData>(new Converter<ExtendedGroupMembersData, GroupMembersData>(m_ForeignImporter.ConvertGroupMembersData));
+                    else
+                        members = new List<GroupMembersData>();
+
+                    lock (m_Cache)
+                    {
+                        //m_Cache.AddOrUpdate(cacheKey, members, GROUPS_CACHE_TIMEOUT);
+                        m_Cache.AddOrUpdate(cacheKey, _members, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+
+                        return (List<GroupMembersData>)members;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public bool AddGroupRole(UUID roleID, string description, string name, ulong powers, string title, BooleanDelegate d)
+        {
+            if (d())
+            {
+                GroupRolesData role = new GroupRolesData();
+                role.Description = description;
+                role.Members = 0;
+                role.Name = name;
+                role.Powers = powers;
+                role.RoleID = roleID;
+                role.Title = title;
+
+                lock (m_Cache)
+                    m_Cache.AddOrUpdate("role-" + roleID.ToString(), role, GROUPS_CACHE_TIMEOUT);
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public bool UpdateGroupRole(UUID groupID, UUID roleID, string name, string description, string title, ulong powers, BooleanDelegate d)
+        {
+            if (d())
+            {
+                object role;
+                lock (m_Cache)
+                    if (m_Cache.TryGetValue("role-" + roleID.ToString(), out role))
+                    {
+                        GroupRolesData r = (GroupRolesData)role;
+                        r.Description = description;
+                        r.Name = name;
+                        r.Powers = powers;
+                        r.Title = title;
+
+                        m_Cache.Update("role-" + roleID.ToString(), r, GROUPS_CACHE_TIMEOUT);
+                    }
+                return true;
+            }
+            else
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.Contains("role-" + roleID.ToString()))
+                        m_Cache.Remove("role-" + roleID.ToString());
+
+                    // also remove these lists, because they will have an outdated role
+                    if (m_Cache.Contains("roles-" + groupID.ToString()))
+                        m_Cache.Remove("roles-" + groupID.ToString());
+
+                }
+
+                return false;
+            }
+        }
+
+        public void RemoveGroupRole(string RequestingAgentID, UUID groupID, UUID roleID, VoidDelegate d)
+        {
+            d();
+
+            lock (m_Cache)
+            {
+                if (m_Cache.Contains("role-" + roleID.ToString()))
+                    m_Cache.Remove("role-" + roleID.ToString());
+
+                // also remove the list, because it will have an removed role
+                if (m_Cache.Contains("roles-" + groupID.ToString()))
+                    m_Cache.Remove("roles-" + groupID.ToString());
+
+                if (m_Cache.Contains("roles-" + groupID.ToString() + "-" + RequestingAgentID.ToString()))
+                    m_Cache.Remove("roles-" + groupID.ToString() + "-" + RequestingAgentID.ToString());
+
+                if (m_Cache.Contains("rolemembers-" + RequestingAgentID.ToString() + "-" + groupID.ToString()))
+                    m_Cache.Remove("rolemembers-" + RequestingAgentID.ToString() + "-" + groupID.ToString());
+            }
+        }
+
+        public List<GroupRolesData> GetGroupRoles(string RequestingAgentID, UUID GroupID, GroupRolesListDelegate d)
+        {
+            object roles = null;
+            bool firstCall = false;
+            string cacheKey = "roles-" + GroupID.ToString();
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out roles))
+                        return (List<GroupRolesData>)roles;
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    roles = d();
+                    if (roles != null)
+                    {
+                        lock (m_Cache)
+                        {
+                            m_Cache.AddOrUpdate(cacheKey, roles, GROUPS_CACHE_TIMEOUT);
+                            m_ActiveRequests.Remove(cacheKey);
+                            return (List<GroupRolesData>)roles;
+                        }
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public List<GroupRoleMembersData> GetGroupRoleMembers(string RequestingAgentID, UUID GroupID, RoleMembersListDelegate d)
+        {
+            object rmembers = null;
+            bool firstCall = false;
+            // we need to key in also on the requester, because different ppl have different view privileges
+            string cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetGroupRoleMembers {0}", cacheKey);
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out rmembers))
+                    {
+                        List<ExtendedGroupRoleMembersData> xx = (List<ExtendedGroupRoleMembersData>)rmembers;
+                        return xx.ConvertAll<GroupRoleMembersData>(m_ForeignImporter.ConvertGroupRoleMembersData);
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    List<ExtendedGroupRoleMembersData> _rmembers = d();
+
+                    if (_rmembers != null && _rmembers.Count > 0)
+                        rmembers = _rmembers.ConvertAll<GroupRoleMembersData>(new Converter<ExtendedGroupRoleMembersData, GroupRoleMembersData>(m_ForeignImporter.ConvertGroupRoleMembersData));
+                    else
+                        rmembers = new List<GroupRoleMembersData>();
+
+                    lock (m_Cache)
+                    {
+                        // For some strange reason, when I cache the list of GroupRoleMembersData,
+                        // it gets emptied out. The TryGet gets an empty list...
+                        //m_Cache.AddOrUpdate(cacheKey, rmembers, GROUPS_CACHE_TIMEOUT);
+                        // Caching the list of ExtendedGroupRoleMembersData doesn't show that issue
+                        // I don't get it.
+                        m_Cache.AddOrUpdate(cacheKey, _rmembers, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (List<GroupRoleMembersData>)rmembers;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public void AddAgentToGroupRole(string RequestingAgentID, string AgentID, UUID GroupID, UUID RoleID, BooleanDelegate d)
+        {
+            if (d())
+            {
+                lock (m_Cache)
+                {
+                    // update the cached role
+                    string cacheKey = "role-" + RoleID.ToString();
+                    object obj;
+                    if (m_Cache.TryGetValue(cacheKey, out obj))
+                    {
+                        GroupRolesData r = (GroupRolesData)obj;
+                        r.Members++;
+                    }
+
+                    // add this agent to the list of role members
+                    cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString();
+                    if (m_Cache.TryGetValue(cacheKey, out obj))
+                    {
+                        try
+                        {
+                            // This may throw an exception, in which case the agentID is not a UUID but a full ID
+                            // In that case, let's just remove the whoe things from the cache
+                            UUID id = new UUID(AgentID);
+                            List<ExtendedGroupRoleMembersData> xx = (List<ExtendedGroupRoleMembersData>)obj;
+                            List<GroupRoleMembersData> rmlist = xx.ConvertAll<GroupRoleMembersData>(m_ForeignImporter.ConvertGroupRoleMembersData);
+                            GroupRoleMembersData rm = new GroupRoleMembersData();
+                            rm.MemberID = id;
+                            rm.RoleID = RoleID;
+                            rmlist.Add(rm);
+                        }
+                        catch
+                        {
+                            m_Cache.Remove(cacheKey);
+                        }
+                    }
+
+                    // Remove the cached info about this agent's roles
+                    // because we don't have enough local info about the new role
+                    cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString();
+                    if (m_Cache.Contains(cacheKey))
+                        m_Cache.Remove(cacheKey);
+
+                }
+            }
+        }
+
+        public void RemoveAgentFromGroupRole(string RequestingAgentID, string AgentID, UUID GroupID, UUID RoleID, BooleanDelegate d)
+        {
+            if (d())
+            {
+                lock (m_Cache)
+                {
+                    // update the cached role
+                    string cacheKey = "role-" + RoleID.ToString();
+                    object obj;
+                    if (m_Cache.TryGetValue(cacheKey, out obj))
+                    {
+                        GroupRolesData r = (GroupRolesData)obj;
+                        r.Members--;
+                    }
+
+                    cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString();
+                    if (m_Cache.Contains(cacheKey))
+                        m_Cache.Remove(cacheKey);
+
+                    cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString();
+                    if (m_Cache.Contains(cacheKey))
+                        m_Cache.Remove(cacheKey);
+                }
+            }
+        }
+
+        public List<GroupRolesData> GetAgentGroupRoles(string RequestingAgentID, string AgentID, UUID GroupID, GroupRolesListDelegate d)
+        {
+            object roles = null;
+            bool firstCall = false;
+            string cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out roles))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0} cached!", cacheKey);
+                        return (List<GroupRolesData>)roles;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    roles = d();
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, roles, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (List<GroupRolesData>)roles;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public void SetAgentActiveGroupRole(string AgentID, UUID GroupID, VoidDelegate d)
+        {
+            d();
+
+            lock (m_Cache)
+            {
+                // Invalidate cached info, because it has ActiveRoleID and Powers
+                string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "memberships-" + AgentID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+            }
+        }
+
+        public void UpdateMembership(string AgentID, UUID GroupID, bool AcceptNotices, bool ListInProfile, VoidDelegate d)
+        {
+            d();
+
+            lock (m_Cache)
+            {
+                string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "memberships-" + AgentID.ToString();
+                if (m_Cache.Contains(cacheKey))
+                    m_Cache.Remove(cacheKey);
+
+                cacheKey = "active-" + AgentID.ToString();
+                object m = null;
+                if (m_Cache.TryGetValue(cacheKey, out m))
+                {
+                    GroupMembershipData membership = (GroupMembershipData)m;
+                    membership.ListInProfile = ListInProfile;
+                    membership.AcceptNotices = AcceptNotices;
+                }
+            }
+        }
+
+        public bool AddGroupNotice(UUID groupID, UUID noticeID, GroupNoticeInfo notice, BooleanDelegate d)
+        {
+            if (d())
+            {
+                lock (m_Cache)
+                {
+                    m_Cache.AddOrUpdate("notice-" + noticeID.ToString(), notice, GROUPS_CACHE_TIMEOUT);
+                    string cacheKey = "notices-" + groupID.ToString();
+                    if (m_Cache.Contains(cacheKey))
+                        m_Cache.Remove(cacheKey);
+
+                }
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public GroupNoticeInfo GetGroupNotice(UUID noticeID, NoticeDelegate d)
+        {
+            object notice = null;
+            bool firstCall = false;
+            string cacheKey = "notice-" + noticeID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out notice))
+                    {
+                        return (GroupNoticeInfo)notice;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    GroupNoticeInfo _notice = d();
+
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, _notice, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return _notice;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+        public List<ExtendedGroupNoticeData> GetGroupNotices(UUID GroupID, NoticeListDelegate d)
+        {
+            object notices = null;
+            bool firstCall = false;
+            string cacheKey = "notices-" + GroupID.ToString();
+
+            //m_log.DebugFormat("[XXX]: GetGroupNotices {0}", cacheKey);
+
+            while (true)
+            {
+                lock (m_Cache)
+                {
+                    if (m_Cache.TryGetValue(cacheKey, out notices))
+                    {
+                        //m_log.DebugFormat("[XXX]: GetGroupNotices {0} cached!", cacheKey);
+                        return (List<ExtendedGroupNoticeData>)notices;
+                    }
+
+                    // not cached
+                    if (!m_ActiveRequests.ContainsKey(cacheKey))
+                    {
+                        m_ActiveRequests.Add(cacheKey, true);
+                        firstCall = true;
+                    }
+                }
+
+                if (firstCall)
+                {
+                    notices = d();
+
+                    lock (m_Cache)
+                    {
+                        m_Cache.AddOrUpdate(cacheKey, notices, GROUPS_CACHE_TIMEOUT);
+                        m_ActiveRequests.Remove(cacheKey);
+                        return (List<ExtendedGroupNoticeData>)notices;
+                    }
+                }
+                else
+                    Thread.Sleep(50);
+            }
+        }
+
+
+    }
+}