clockwerk-opensim – Blame information for rev 1

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1 vero 1 /*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 using System;
28 using System.Reflection;
29 using System.Collections.Generic;
30 using OpenSim.Framework;
31 using OpenSim.Services.Interfaces;
32 using OpenMetaverse;
33 using log4net;
34  
35 namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.UserAccounts
36 {
37 public class UserAccountCache
38 {
39 private const double CACHE_EXPIRATION_SECONDS = 120000.0; // 33 hours!
40  
41 // private static readonly ILog m_log =
42 // LogManager.GetLogger(
43 // MethodBase.GetCurrentMethod().DeclaringType);
44  
45 private ExpiringCache<UUID, UserAccount> m_UUIDCache;
46 private ExpiringCache<string, UUID> m_NameCache;
47  
48 public UserAccountCache()
49 {
50 m_UUIDCache = new ExpiringCache<UUID, UserAccount>();
51 m_NameCache = new ExpiringCache<string, UUID>();
52 }
53  
54 public void Cache(UUID userID, UserAccount account)
55 {
56 // Cache even null accounts
57 m_UUIDCache.AddOrUpdate(userID, account, CACHE_EXPIRATION_SECONDS);
58 if (account != null)
59 m_NameCache.AddOrUpdate(account.Name, account.PrincipalID, CACHE_EXPIRATION_SECONDS);
60  
61 //m_log.DebugFormat("[USER CACHE]: cached user {0}", userID);
62 }
63  
64 public void Invalidate(UUID userID)
65 {
66 m_UUIDCache.Remove(userID);
67 }
68  
69 public UserAccount Get(UUID userID, out bool inCache)
70 {
71 UserAccount account = null;
72 inCache = false;
73 if (m_UUIDCache.TryGetValue(userID, out account))
74 {
75 //m_log.DebugFormat("[USER CACHE]: Account {0} {1} found in cache", account.FirstName, account.LastName);
76 inCache = true;
77 return account;
78 }
79  
80 return null;
81 }
82  
83 public UserAccount Get(string name, out bool inCache)
84 {
85 inCache = false;
86 if (!m_NameCache.Contains(name))
87 return null;
88  
89 UserAccount account = null;
90 UUID uuid = UUID.Zero;
91 if (m_NameCache.TryGetValue(name, out uuid))
92 if (m_UUIDCache.TryGetValue(uuid, out account))
93 {
94 inCache = true;
95 return account;
96 }
97  
98 return null;
99 }
100 }
101 }