Added a UserAccountCache to the UserAccountServiceConnectors. Uses a CenomeCache.

1 files changed, 87 insertions, 0 deletions

diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/UserAccounts/UserAccountCache.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/UserAccounts/UserAccountCache.cs
new file mode 100644
index 0000000..e430fc7
--- /dev/null
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/UserAccounts/UserAccountCache.cs
@@ -0,0 +1,87 @@
+/*
+ * 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.Reflection;
+using System.Collections.Generic;
+using OpenSim.Framework;
+using OpenSim.Services.Interfaces;
+using OpenMetaverse;
+using log4net;
+
+namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.UserAccounts
+{
+    public class UserAccountCache
+    {
+        //private static readonly ILog m_log =
+        //        LogManager.GetLogger(
+        //        MethodBase.GetCurrentMethod().DeclaringType);
+        
+        private ICnmCache<UUID, UserAccount> m_UUIDCache;
+        private Dictionary<string, UUID> m_NameCache;
+
+        public UserAccountCache()
+        {
+            // Warning: the size values are a bit fuzzy. What matters
+            // most for this cache is the count value (128 entries).
+            m_UUIDCache = CnmSynchronizedCache<UUID, UserAccount>.Synchronized(new CnmMemoryCache<UUID, UserAccount>(
+                        128, 128*512, TimeSpan.FromMinutes(30.0)));
+            m_NameCache = new Dictionary<string, UUID>(); // this one is unbound
+        }
+
+        public void Cache(UserAccount account)
+        {
+            m_UUIDCache.Set(account.PrincipalID, account, 512);
+            m_NameCache[account.Name] = account.PrincipalID;
+
+            //m_log.DebugFormat("[USER CACHE]: cached user {0} {1}", account.FirstName, account.LastName);
+        }
+
+        public UserAccount Get(UUID userID)
+        {
+            UserAccount account = null;
+            if (m_UUIDCache.TryGetValue(userID, out account))
+            {
+                //m_log.DebugFormat("[USER CACHE]: Account {0} {1} found in cache", account.FirstName, account.LastName);
+                return account;
+            }
+
+            return null;
+        }
+
+        public UserAccount Get(string name)
+        {
+            if (!m_NameCache.ContainsKey(name))
+                return null;
+
+            UserAccount account = null;
+            if (m_UUIDCache.TryGetValue(m_NameCache[name], out account))
+                return account;
+
+            return null;
+        }
+    }
+}