source: trunk/sources/HeuristicLab.CEDMA.Core/Agent.cs @ 513

Last change on this file since 513 was 513, checked in by gkronber, 14 years ago

Fixed the problem that sometimes an operator link was not patched before a view was created (which resulted in a NullException) by adding a property for the source database in OperatorLink! and updating this property recursively whenever an operator is loaded from the CEDMA DB.

The method for recursively setting the property is in static class OperatorLinkPatcher because the code is needed in Agent, DatabaseOperatorLibrary and OperatorLink.

(ticket #211)

File size: 3.2 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 Agent : IAgent {
33    public IDatabase Database { get; set; }
34    public long Id { get; set; }
35    public string Name { get; set; }
36    public ProcessStatus Status { get; set; }
37    public bool Terminated { get; set; }
38    private OperatorGraph operatorGraph;
39
40    public IOperatorGraph OperatorGraph {
41      get { return operatorGraph; }
42    }
43
44    public Agent()
45      : base() {
46      operatorGraph = new OperatorGraph();
47    }
48
49    public Agent(IDatabase database, long id)
50      : this() {
51      Database = database;
52      Id = id;
53    }
54
55    public void Save() {
56      Database.UpdateAgent(Id, Name);
57      Database.UpdateAgent(Id, Status);
58      Database.UpdateAgent(Id, PersistenceManager.SaveToGZip(OperatorGraph));
59    }
60
61    public void Start() {
62      Status = ProcessStatus.Waiting;
63      Save();
64    }
65
66    public ICollection<IAgent> SubAgents {
67      get {
68        List<IAgent> agents = new List<IAgent>();
69        foreach(AgentEntry entry in Database.GetSubAgents(Id)) {
70          Agent newAgent = new Agent(Database, entry.Id);
71          newAgent.Name = entry.Name;
72          newAgent.Status = entry.Status;
73          agents.Add(newAgent);
74        }
75        return agents;
76      }
77    }
78
79    public ICollection<IResult> Results {
80      get {
81        List<IResult> results = new List<IResult>();
82        foreach(ResultEntry entry in Database.GetResults(Id)) {
83          Result result = new Result(Database, entry.Id);
84          result.Summary = entry.Summary;
85          result.Description = entry.Description;
86          results.Add(result);
87        }
88        return results;
89      }
90    }
91
92    public IView CreateView() {
93      if(OperatorGraph.Operators.Count == 0) {
94        byte[] rawData = Database.GetAgentRawData(Id);
95        IOperatorGraph opGraph = (IOperatorGraph)PersistenceManager.RestoreFromGZip(rawData);
96        foreach(IOperator op in opGraph.Operators) OperatorGraph.AddOperator(op);
97        OperatorGraph.InitialOperator = opGraph.InitialOperator;
98        OperatorLinkPatcher.LinkDatabase(OperatorGraph, Database);
99      }
100      return new AgentView(this);
101    }
102  }
103}
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