root / trunk / Pithos.Core / Agents / AgentLocator.cs @ 2341c603
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1 | 255f5f86 | Panagiotis Kanavos | #region |
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2 | 255f5f86 | Panagiotis Kanavos | /* ----------------------------------------------------------------------- |
3 | 255f5f86 | Panagiotis Kanavos | * <copyright file="AgentLocator.cs" company="GRNet"> |
4 | 255f5f86 | Panagiotis Kanavos | * |
5 | 255f5f86 | Panagiotis Kanavos | * Copyright 2011-2012 GRNET S.A. All rights reserved. |
6 | 255f5f86 | Panagiotis Kanavos | * |
7 | 255f5f86 | Panagiotis Kanavos | * Redistribution and use in source and binary forms, with or |
8 | 255f5f86 | Panagiotis Kanavos | * without modification, are permitted provided that the following |
9 | 255f5f86 | Panagiotis Kanavos | * conditions are met: |
10 | 255f5f86 | Panagiotis Kanavos | * |
11 | 255f5f86 | Panagiotis Kanavos | * 1. Redistributions of source code must retain the above |
12 | 255f5f86 | Panagiotis Kanavos | * copyright notice, this list of conditions and the following |
13 | 255f5f86 | Panagiotis Kanavos | * disclaimer. |
14 | 255f5f86 | Panagiotis Kanavos | * |
15 | 255f5f86 | Panagiotis Kanavos | * 2. Redistributions in binary form must reproduce the above |
16 | 255f5f86 | Panagiotis Kanavos | * copyright notice, this list of conditions and the following |
17 | 255f5f86 | Panagiotis Kanavos | * disclaimer in the documentation and/or other materials |
18 | 255f5f86 | Panagiotis Kanavos | * provided with the distribution. |
19 | 255f5f86 | Panagiotis Kanavos | * |
20 | 255f5f86 | Panagiotis Kanavos | * |
21 | 255f5f86 | Panagiotis Kanavos | * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
22 | 255f5f86 | Panagiotis Kanavos | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
23 | 255f5f86 | Panagiotis Kanavos | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
24 | 255f5f86 | Panagiotis Kanavos | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
25 | 255f5f86 | Panagiotis Kanavos | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
26 | 255f5f86 | Panagiotis Kanavos | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
27 | 255f5f86 | Panagiotis Kanavos | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
28 | 255f5f86 | Panagiotis Kanavos | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
29 | 255f5f86 | Panagiotis Kanavos | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | 255f5f86 | Panagiotis Kanavos | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
31 | 255f5f86 | Panagiotis Kanavos | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
32 | 255f5f86 | Panagiotis Kanavos | * POSSIBILITY OF SUCH DAMAGE. |
33 | 255f5f86 | Panagiotis Kanavos | * |
34 | 255f5f86 | Panagiotis Kanavos | * The views and conclusions contained in the software and |
35 | 255f5f86 | Panagiotis Kanavos | * documentation are those of the authors and should not be |
36 | 255f5f86 | Panagiotis Kanavos | * interpreted as representing official policies, either expressed |
37 | 255f5f86 | Panagiotis Kanavos | * or implied, of GRNET S.A. |
38 | 255f5f86 | Panagiotis Kanavos | * </copyright> |
39 | 255f5f86 | Panagiotis Kanavos | * ----------------------------------------------------------------------- |
40 | 255f5f86 | Panagiotis Kanavos | */ |
41 | 255f5f86 | Panagiotis Kanavos | #endregion |
42 | 255f5f86 | Panagiotis Kanavos | using System; |
43 | c28a075a | Panagiotis Kanavos | using System.Collections.Concurrent; |
44 | c28a075a | Panagiotis Kanavos | using System.Collections.Generic; |
45 | c28a075a | Panagiotis Kanavos | using System.Linq; |
46 | c28a075a | Panagiotis Kanavos | using System.Text; |
47 | c28a075a | Panagiotis Kanavos | |
48 | c28a075a | Panagiotis Kanavos | namespace Pithos.Core.Agents |
49 | c28a075a | Panagiotis Kanavos | { |
50 | c28a075a | Panagiotis Kanavos | static class AgentLocator<T> where T:class |
51 | c28a075a | Panagiotis Kanavos | { |
52 | c28a075a | Panagiotis Kanavos | static ConcurrentDictionary<string, WeakReference> _agents = new ConcurrentDictionary<string, WeakReference>(); |
53 | c28a075a | Panagiotis Kanavos | public static void Register(T agent,string key) |
54 | c28a075a | Panagiotis Kanavos | { |
55 | c28a075a | Panagiotis Kanavos | _agents[key] = new WeakReference(agent); |
56 | c28a075a | Panagiotis Kanavos | } |
57 | c28a075a | Panagiotis Kanavos | |
58 | c28a075a | Panagiotis Kanavos | public static T Get(string key) |
59 | c28a075a | Panagiotis Kanavos | { |
60 | c28a075a | Panagiotis Kanavos | return _agents[key].Target as T; |
61 | c28a075a | Panagiotis Kanavos | } |
62 | c28a075a | Panagiotis Kanavos | |
63 | c28a075a | Panagiotis Kanavos | public static bool TryGet(string key, out T value) |
64 | c28a075a | Panagiotis Kanavos | { |
65 | c28a075a | Panagiotis Kanavos | WeakReference target; |
66 | c28a075a | Panagiotis Kanavos | var exists = _agents.TryGetValue(key, out target); |
67 | c28a075a | Panagiotis Kanavos | value = target.Target as T; |
68 | c28a075a | Panagiotis Kanavos | return exists; |
69 | c28a075a | Panagiotis Kanavos | } |
70 | c28a075a | Panagiotis Kanavos | |
71 | c28a075a | Panagiotis Kanavos | public static void Remove(string key) |
72 | c28a075a | Panagiotis Kanavos | { |
73 | c28a075a | Panagiotis Kanavos | WeakReference target; |
74 | c28a075a | Panagiotis Kanavos | _agents.TryRemove(key, out target); |
75 | c28a075a | Panagiotis Kanavos | } |
76 | c28a075a | Panagiotis Kanavos | } |
77 | c28a075a | Panagiotis Kanavos | } |