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source: branches/HeuristicLab.Hive_Milestone3/sources/HeuristicLab.CEDMA.Core/3.3/DataSet.cs @ 4949

Last change on this file since 4949 was 2053, checked in by gkronber, 16 years ago

Removed lazy loading of problem data and made adds of datasets and models atomic. #656 (CEDMA server should handle only one data set (problem) at a time)

File size: 3.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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;
23using System.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Core;
27using System.Xml;
28using HeuristicLab.CEDMA.DB.Interfaces;
29using HeuristicLab.Operators;
30
31namespace HeuristicLab.CEDMA.Core {
32  public class DataSet : IViewable {
33    public IStore Store { get; set; }
34
35    private Guid guid;
36    public Guid Guid {
37      get { return guid; }
38    }
39
40    private string name;
41    public string Name {
42      get { return name; }
43      set { name = value; }
44    }
45
46    private Problem problem;
47    public Problem Problem {
48      get {
49        return problem;
50      }
51    }
52
53    private bool activated;
54    public bool Activated {
55      get { return activated; }
56    }
57
58    public DataSet()
59      : base() {
60      guid = Guid.NewGuid();
61      name = "Data set";
62      activated = false;
63      problem = new Problem();
64    }
65
66    public DataSet(IStore store, Entity dataSetEntity)
67      : this() {
68      Store = store;
69      guid = new Guid(dataSetEntity.Uri.Remove(0, Ontology.CedmaNameSpace.Length));
70      name = guid.ToString();
71      var persistedData = Store.Query(
72        "<" + Ontology.CedmaNameSpace + Guid + "> <" + Ontology.SerializedData.Uri + "> ?SerializedData .", 0, 10);
73      if (persistedData.Count() == 1) {
74        Literal persistedLiteral = (Literal)persistedData.First().Get("SerializedData");
75        problem = (Problem)PersistenceManager.RestoreFromGZip(Convert.FromBase64String((string)persistedLiteral.Value));
76      } else problem = new Problem();
77      activated = true;
78    }
79
80    public void Activate() {
81      Entity myEntity = new Entity(Ontology.CedmaNameSpace + Guid);
82      Store.AddRange(
83        new Statement[] {
84          new Statement(myEntity, Ontology.InstanceOf, Ontology.TypeDataSet),
85          new Statement(myEntity, Ontology.SerializedData, new Literal(Convert.ToBase64String(PersistenceManager.SaveToGZip(problem)))),
86          new Statement(myEntity, Ontology.Name, new Literal(name))
87        });
88      activated = true;
89    }
90
91    public IView CreateView() {
92      return new DataSetView(this);
93    }
94
95    internal Results GetResults() {
96      Results results = new Results(Store);
97      return results;
98    }
99  }
100}
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