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source: branches/HivePerformance/sources/HeuristicLab.Services.Hive/3.3/HiveOperationContext.cs @ 9381

Last change on this file since 9381 was 9381, checked in by pfleck, 10 years ago

#2030
Activated Delayed Loading for binary data.
Added HiveOperationContext to store HiveDataContext for whole ServiceOperation duration.
Added HiveDao methods to query database objects, not DTOs.
Changed HartbeatManager to use only database objects from new queries.

File size: 2.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System.Diagnostics;
23using System.IO;
24using System.ServiceModel;
25using System.Text;
26using HeuristicLab.Services.Hive.DataAccess;
27
28namespace HeuristicLab.Services.Hive {
29  public class HiveOperationContext : IExtension<OperationContext> {
30    public static HiveOperationContext Current {
31      get {
32        var context = OperationContext.Current.Extensions.Find<HiveOperationContext>();
33        if (context == null) {
34          context = new HiveOperationContext();
35          OperationContext.Current.Extensions.Add(context);
36        }
37        return context;
38      }
39    }
40
41    public HiveDataContext DataContext { get; private set; }
42
43    public void Attach(OperationContext owner) {
44      DataContext = HiveDao.CreateContext();
45      //DataContext.Log = new DebugWriter();
46    }
47
48    public void Detach(OperationContext owner) {
49      // nothing
50    }
51  }
52
53  internal class DebugWriter : TextWriter {
54    public override Encoding Encoding {
55      get { return Encoding.UTF8; }
56    }
57
58    public override void Write(char value) {
59      Debug.Write(value);
60    }
61
62    public override void Write(string value) {
63      Debug.Write(value);
64    }
65
66    public override void WriteLine(string value) {
67      Debug.WriteLine(value);
68    }
69  }
70}
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