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source: trunk/sources/HeuristicLab.Hive.JobBase/3.2/JobBase.cs @ 1655

Last change on this file since 1655 was 1655, checked in by kgrading, 15 years ago

added proper exception handling (#601)

File size: 2.7 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 System.Threading;
27using System.Xml;
28using HeuristicLab.Core;
29
30namespace HeuristicLab.Hive.JobBase {
31  [Serializable]
32  abstract public class JobBase : StorableBase, IJob {
33
34    private Thread thread = null;
35    public event EventHandler JobStopped;
36    public event EventHandler JobFailed;
37   
38    public long JobId { get; set; }   
39    public double Progress { get; set; }       
40    public bool Running { get; set; }
41   
42    protected bool abort = false;   
43
44    abstract public void Run();
45    private void SecureRun() {
46      try {
47        Run();
48      }
49      catch (Exception ex) {
50        if (JobFailed != null)
51          JobFailed(this, new EventArgs());
52      }
53    }
54
55    public void Start() {
56      thread = new Thread(new ThreadStart(Run));     
57      thread.Start();
58      Running = true;
59    }
60
61    public void Stop() {
62      abort = true;       
63    }
64
65    protected void OnJobStopped() {
66      Console.WriteLine("Job has finished");
67      Running = false;
68      if (JobStopped != null)
69        JobStopped(this, new EventArgs());
70    }
71
72    public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid, IStorable> persistedObjects) {
73      XmlNode node = base.GetXmlNode(name, document, persistedObjects);
74
75      XmlNode progr = document.CreateNode(XmlNodeType.Element, "Progress", null);
76      progr.InnerText = Convert.ToString(Progress);
77
78      node.AppendChild(progr);
79      return node;
80    }
81    public override void Populate(XmlNode node, IDictionary<Guid, IStorable> restoredObjects) {
82      base.Populate(node, restoredObjects);
83
84      XmlNode progr = node.SelectSingleNode("Progress");
85      Progress = Convert.ToDouble(progr.InnerText);
86    }
87
88    public JobBase() {   
89    }
90  }
91}
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