| using System;
|
| using System.Collections.Generic;
|
| using System.Linq;
|
| using System.Text;
|
| using System.Diagnostics;
|
| using System.Threading;
|
| using System.IO;
|
| using System.Globalization;
|
|
|
| namespace DWSIM.Libraries.PythonLink
|
| {
|
| public class Python
|
| {
|
|
|
| public Process PythonProcess { get; set; }
|
| private string PythonEchoString { get; set; }
|
| public Python(string PathToPythonBinaries)
|
| {
|
| StartPython(PathToPythonBinaries, false);
|
| }
|
|
|
| public Python(string PathToPythonBinaries, bool CreateWindow)
|
| {
|
| StartPython(PathToPythonBinaries, CreateWindow);
|
| }
|
|
|
| string ptob;
|
| bool cw;
|
| private void StartPython(string PathToPythonBinaries, bool CreateWindow)
|
| {
|
| ptob = PathToPythonBinaries;
|
| cw = CreateWindow;
|
| this.PythonEchoString = Guid.NewGuid().ToString();
|
| PythonProcess = new Process();
|
| ProcessStartInfo pi = new ProcessStartInfo();
|
| if (System.Environment.OSVersion.Platform == PlatformID.Unix)
|
| {
|
| pi.FileName = "python";
|
| }
|
| else
|
| {
|
| if (PathToPythonBinaries[PathToPythonBinaries.Length - 1] != '\\')
|
| PathToPythonBinaries = PathToPythonBinaries + Path.DirectorySeparatorChar;
|
| pi.FileName = PathToPythonBinaries + "python.exe";
|
| }
|
| pi.RedirectStandardInput = true;
|
| pi.RedirectStandardOutput = true;
|
| pi.RedirectStandardError = true;
|
| pi.UseShellExecute = false;
|
| pi.CreateNoWindow = !CreateWindow;
|
| pi.Verb = "open";
|
| pi.Arguments = "-i";
|
|
|
| pi.WorkingDirectory = ".";
|
| PythonProcess.StartInfo = pi;
|
| PythonProcess.Start();
|
| PythonProcess.ErrorDataReceived += new DataReceivedEventHandler(PythonProcess_ErrorDataReceived);
|
| PythonProcess.OutputDataReceived += new DataReceivedEventHandler(PythonProcess_OutputDataReceived);
|
| PythonProcess.BeginOutputReadLine();
|
| PythonProcess.BeginErrorReadLine();
|
| PythonEntryText = ExecuteCommand("echo = '" + PythonEchoString + "'", true);
|
| }
|
|
|
| public double GetScalar(string command)
|
| {
|
| string rasp = ExecuteCommand(command, false);
|
| if (rasp == "None")
|
| {
|
| return 0.0d;
|
| }
|
| else
|
| {
|
| return double.Parse(rasp, CultureInfo.InvariantCulture);
|
| }
|
| }
|
|
|
| public double[] GetVector(string command)
|
| {
|
| string rasp = ExecuteCommand(command, false);
|
| return rasp.TrimStart(new char[] { '(' }).TrimEnd(new char[] { ')' }).Trim().Split(new char[] { ',' }).Select((item) => Double.Parse(item, CultureInfo.InvariantCulture)).ToArray();
|
| }
|
|
|
| StringBuilder SharedBuilder = new StringBuilder();
|
|
|
| ManualResetEvent PythonDoneEvent = new ManualResetEvent(false);
|
|
|
| public string PythonEntryText { get; internal set; }
|
|
|
| public void WorkThread(object o)
|
| {
|
| var command = ((object[])o)[0];
|
| SharedBuilder.Clear();
|
| PythonDoneEvent.Reset();
|
| if (command != null)
|
| {
|
| if (command is string)
|
| {
|
| PythonProcess.StandardInput.WriteLine((string)command);
|
| }
|
| else
|
| {
|
| foreach (string s in (string[])((object[])o)[0])
|
| {
|
| PythonProcess.StandardInput.WriteLine(s);
|
| }
|
| }
|
| }
|
| if ((bool)((object[])o)[1])
|
| PythonProcess.StandardInput.WriteLine("echo");
|
| else
|
| PythonProcess.StandardInput.WriteLine("sys.stdout.flush()");
|
| PythonDoneEvent.WaitOne();
|
| }
|
|
|
| public string ExecuteCommand(string command, bool writeecho)
|
| {
|
| Thread tmp = new Thread(new ParameterizedThreadStart(WorkThread));
|
| tmp.Start(new object[] { command, writeecho });
|
|
|
| if (!tmp.Join((int)(GlobalSettings.Settings.PythonTimeoutInMinutes * 60 * 1000)))
|
| {
|
| tmp.Abort();
|
| throw new Exception("Python timeout");
|
| }
|
|
|
| return SharedBuilder.ToString();
|
| }
|
|
|
| public string ExecuteMultilineCommand(string[] command, bool writeecho)
|
| {
|
| Thread tmp = new Thread(new ParameterizedThreadStart(WorkThread));
|
| tmp.Start(new object[] { command, writeecho });
|
|
|
| if (!tmp.Join((int)(GlobalSettings.Settings.PythonTimeoutInMinutes * 60 * 1000)))
|
| {
|
| tmp.Abort();
|
| throw new Exception("Python timeout");
|
| }
|
|
|
| return SharedBuilder.ToString();
|
| }
|
|
|
| void PythonProcess_OutputDataReceived(object sender, DataReceivedEventArgs e)
|
| {
|
| if (e.Data == null)
|
| {
|
| SharedBuilder.Clear();
|
| PythonDoneEvent.Set();
|
| return;
|
| }
|
| if (e.Data.Trim() == "'" + PythonEchoString + "'")
|
| PythonDoneEvent.Set();
|
| else
|
| {
|
| SharedBuilder.Append(e.Data);
|
| PythonDoneEvent.Set();
|
| }
|
|
|
| }
|
|
|
| void PythonProcess_ErrorDataReceived(object sender, DataReceivedEventArgs e)
|
| {
|
| if (e.Data != null)
|
| {
|
|
|
|
|
| }
|
|
|
| }
|
|
|
| public delegate void PythonRestartedEventHandler(object sender, EventArgs e);
|
| }
|
| }
|
|
|
