source: branches/CEDMA-Refactoring-Ticket419/HeuristicLab.CEDMA.Core/DataSet.cs @ 1130

Last change on this file since 1130 was 1130, checked in by gkronber, 12 years ago
  • re-enabled security for all WCF services;
  • debugged rdf queries
  • added tracing for WCF services
  • implemented simple version of quality based dispatching
  • extended ontology to include a number of predefined model-attributes (quality, size, evaluated solutions etc.)

ticket: #419 (Refactor CEDMA plugins)

File size: 3.4 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        // lazy loading of problem from DB
50        if (problem == null) {
51          //var serializedDataVar = new HeuristicLab.CEDMA.DB.Interfaces.Variable("SerializedData");
52          //var persistedData = Store.Query(
53          //  new Statement[] { new Statement(new Entity(Ontology.CedmaNameSpace + Guid), Ontology.PredicateSerializedData, serializedDataVar)});
54          var persistedData = Store.Query(
55            "<" + Ontology.CedmaNameSpace + Guid + "> <" + Ontology.PredicateSerializedData.Uri + "> ?SerializedData .");
56          if (persistedData.Count() == 1) {
57            Literal persistedLiteral = (Literal)persistedData.First().Get("SerializedData");
58            this.problem = (Problem)PersistenceManager.RestoreFromGZip(Convert.FromBase64String((string)persistedLiteral.Value));
59          } else
60            this.problem = new Problem(); // no entry in the DB => create a new problem
61        }
62        return problem;
63      }
64    }
65
66    public DataSet()
67      : base() {
68      guid = Guid.NewGuid();
69      name = "Data set";
70    }
71
72    public DataSet(IStore store, Entity dataSetEntity)
73      : this() {
74      Store = store;
75      guid = new Guid(dataSetEntity.Uri.Remove(0, Ontology.CedmaNameSpace.Length));
76      name = guid.ToString();
77    }
78
79    public void Activate() {
80      Entity myEntity = new Entity(Ontology.CedmaNameSpace + Guid);
81      Store.Add(new Statement(myEntity, Ontology.PredicateInstanceOf, Ontology.TypeDataSet));
82      Store.Add(new Statement(myEntity, Ontology.PredicateSerializedData, new Literal(Convert.ToBase64String(PersistenceManager.SaveToGZip(problem)))));
83      Store.Add(new Statement(myEntity, Ontology.PredicateName, new Literal(name)));
84    }
85
86    public IView CreateView() {
87      return new DataSetView(this);
88    }
89
90    internal Results GetResults() {
91      Results results = new Results(Store);
92      results.FilterDataSet(new Entity(Ontology.CedmaNameSpace + Guid));
93      return results;
94    }
95  }
96}
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