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/*
------------------------------------------------------------------------------------------
Author:
Boroş Tiberiu
Administrator Sistem Tel.: +40745310081
Institutul de Cercetări pentru Inteligenţă Artificială,
Academia Română
Calea 13 Septembrie, Nr. 13, CASA ACADEMIEI, Bucuresti 050711, ROMANIA
Tel.: +40-(0)213188103
Fax: +40-(0)213188142
E-mail: office@racai.ro
Web: http://www.racai.ro
------------------------------------------------------------------------------------------
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Threading;
using System.IO;
using System.Globalization;
public class Octave
{
public Process OctaveProcess { get; set; }
private string OctaveEchoString { get; set; }
public Octave(string PathToOctaveBinaries)
{
StartOctave(PathToOctaveBinaries, false);
}
public Octave(string PathToOctaveBinaries, bool CreateWindow)
{
StartOctave(PathToOctaveBinaries, CreateWindow);
}
string ptob;
bool cw;
private void StartOctave(string PathToOctaveBinaries, bool CreateWindow)
{
ptob = PathToOctaveBinaries;
cw = CreateWindow;
this.OctaveEchoString = Guid.NewGuid().ToString();
OctaveProcess = new Process();
ProcessStartInfo pi = new ProcessStartInfo();
if (System.Environment.OSVersion.Platform == PlatformID.Unix)
{
pi.FileName = "octave-cli";
}
else
{
if (PathToOctaveBinaries[PathToOctaveBinaries.Length - 1] != '\\')
PathToOctaveBinaries = PathToOctaveBinaries + Path.DirectorySeparatorChar;
pi.FileName = PathToOctaveBinaries + "octave-cli.exe";
}
pi.RedirectStandardInput = true;
pi.RedirectStandardOutput = true;
pi.RedirectStandardError = true;
pi.UseShellExecute = false;
pi.CreateNoWindow = !CreateWindow;
pi.Verb = "open";
//
pi.WorkingDirectory = ".";
OctaveProcess.StartInfo = pi;
OctaveProcess.Start();
OctaveProcess.OutputDataReceived += new DataReceivedEventHandler(OctaveProcess_OutputDataReceived);
OctaveProcess.BeginOutputReadLine();
OctaveEntryText = ExecuteCommand(null);
}
public double GetScalar(string scalar)
{
string rasp = ExecuteCommand(scalar, 30000);
string val = rasp.Replace(scalar + " = ", "").Substring(rasp.LastIndexOf("\\") + 1).Trim();
return double.Parse(val, CultureInfo.InvariantCulture);
}
public double[] GetVector(string vector)
{
string rasp = ExecuteCommand(vector, 30000);
string[] lines = rasp.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
int i = 0;
//catam urmatorul entry
List<double> data = new List<double>();
while (i < lines.Length - 1)
{
i++;
string line = lines[i];
string[] dataS = line.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
for (int k = 0; k < dataS.Length; k++)
{
data.Add(double.Parse(dataS[k], CultureInfo.InvariantCulture));
}
}
//caz special in care a pus toate rezultatele pe o singura linie
if (data.Count == 0)
{
string[] dataS = lines[lines.Length - 1].Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
if (dataS.Length != 0)
for (int k = 0; k < dataS.Length; k++)
{
data.Add(double.Parse(dataS[k], CultureInfo.InvariantCulture));
}
}
return data.ToArray();
}
public double[][] GetMatrix(string matrix)
{
//string rasp = ExecuteCommand(matrix);
//aflam numarul de randuri
string rasp = ExecuteCommand(matrix + "(:,1)", 30000);
string[] lines = rasp.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
double[][] mat = new double[lines.Length - 1][];
for (int i = 0; i < mat.Length; i++)
{
mat[i] = GetVector(matrix + "(" + (i + 1) + ",:)");
}
return mat;
}
StringBuilder SharedBuilder = new StringBuilder();
ManualResetEvent OctaveDoneEvent = new ManualResetEvent(false);
public string OctaveEntryText { get; internal set; }
public void WorkThread(object o)
{
string command = (string)o;
SharedBuilder.Clear();
OctaveDoneEvent.Reset();
if (command != null)
{
OctaveProcess.StandardInput.WriteLine(command);
}
//ca sa avem referinta pentru output
OctaveProcess.StandardInput.WriteLine("\"" + OctaveEchoString + "\"");
OctaveDoneEvent.WaitOne();
}
public string ExecuteCommand(string command, int timeout)
{
command = "pwd();" + command;
if (OctaveProcess.HasExited)
{
StartOctave(ptob, cw);
if (OctaveRestarted != null) OctaveRestarted(this, EventArgs.Empty);
}
exitError = false;
Thread tmp = new Thread(new ParameterizedThreadStart(WorkThread));
tmp.Start(command);
if (!tmp.Join(timeout))
{
tmp.Abort();
throw new Exception("Octave timeout");
}
if (exitError)
{
throw new Exception(errorMessage);
}
return SharedBuilder.ToString();
}
public string ExecuteCommand(string command)
{
command = "pwd();" + command;
Thread tmp = new Thread(new ParameterizedThreadStart(WorkThread));
tmp.Start(command);
tmp.Join();
return SharedBuilder.ToString();
}
bool exitError = false;
string errorMessage = null;
void OctaveProcess_OutputDataReceived(object sender, DataReceivedEventArgs e)
{
if (e.Data == null)
{
SharedBuilder.Clear();
errorMessage = OctaveProcess.StandardError.ReadToEnd();
SharedBuilder.Append("Octave has exited with the following error message: \r\n" + errorMessage);
exitError = true;
OctaveDoneEvent.Set();
return;
}
if (e.Data.Trim() == "ans = " + OctaveEchoString)
OctaveDoneEvent.Set();
else
SharedBuilder.Append(e.Data + "\r\n");
}
public event OctaveRestartedEventHandler OctaveRestarted;
public delegate void OctaveRestartedEventHandler(object sender, EventArgs e);
}
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