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source: branches/3.1/sources/HeuristicLab.Communication.Data/ProcessData.cs @ 17232

Last change on this file since 17232 was 592, checked in by abeham, 16 years ago

Put the GPL license in the files from the communication framework and simulation optimization project (branch 3.1)

File size: 4.0 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.Diagnostics;
25using System.IO;
26using System.Text;
27using System.Xml;
28using HeuristicLab.Core;
29using HeuristicLab.Data;
30
31namespace HeuristicLab.Communication.Data {
32  public class ProcessData : ItemBase, IDataStream {
33    private LocalProcessDriverConfiguration config;
34    public IDriverConfiguration Configuration {
35      get { return config; }
36      set { config = (LocalProcessDriverConfiguration)value; }
37    }
38    private Process process;
39    public Process Process {
40      get { return process; }
41      set { process = value; }
42    }
43
44    public ProcessData() {
45      process = null;
46      config = null;
47    }
48
49    // A process cannot be cloned
50    public override object Clone(IDictionary<Guid, object> clonedObjects) {
51      ProcessData clone = new ProcessData();
52      clonedObjects.Add(Guid, clone);
53      clone.process = process;
54      clone.config = (LocalProcessDriverConfiguration)Auxiliary.Clone(config, clonedObjects);
55      return clone;
56    }
57
58    #region persistence
59    // A process cannot be persisted
60    // but information can be persisted that will allow it to be recreated
61    public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid, IStorable> persistedObjects) {
62      XmlNode node = base.GetXmlNode(name, document, persistedObjects);
63      XmlNode configNode = PersistenceManager.Persist("Configuration", config, document, persistedObjects);
64      node.AppendChild(configNode);
65      return node;
66    }
67
68    // A process cannot be persisted
69    // but information can be persisted that will allow it to be recreated
70    public override void Populate(XmlNode node, IDictionary<Guid, IStorable> restoredObjects) {
71      base.Populate(node, restoredObjects);
72      Configuration = (LocalProcessDriverConfiguration)PersistenceManager.Restore(node.SelectSingleNode("Configuration"), restoredObjects);
73      StartProcess();
74    }
75    #endregion
76
77    private void StartProcess() {
78      process = new Process();
79      process.StartInfo.FileName = config.ExecutablePath.Data;
80      process.StartInfo.Arguments = config.Arguments.Data;
81      process.StartInfo.UseShellExecute = false;
82      process.StartInfo.RedirectStandardInput = true;
83      process.StartInfo.RedirectStandardError = true;
84      process.StartInfo.RedirectStandardOutput = true;
85      process.Start();
86    }
87
88    public void Initialize(IDriverConfiguration configuration) {
89      Configuration = configuration;
90      StartProcess();
91    }
92
93    public bool Connect() { 
94      return true;
95    }
96
97    public void Close() {
98      if (!process.HasExited) process.Kill();
99      process.Close();
100      process = null;
101    }
102
103    public void Write(string s) {
104      StreamWriter writer = process.StandardInput;
105      writer.WriteLine(s);
106      writer.WriteLine(".");
107    }
108
109    public string Read() {
110      StreamReader reader = process.StandardOutput;
111      StringBuilder buffer = new StringBuilder();
112      string line = "";
113      do {
114        line = reader.ReadLine();
115        if (line.Equals(".")) break;
116        buffer.AppendLine(line);
117      } while (true);
118      return buffer.ToString();
119    }
120  }
121}
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