File size: 9,553 Bytes
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Imports System.Net
Imports System.Net.Http
Imports System.Text
Imports System.Threading
Imports HtmlAgilityPack
Imports System.IO.Compression
Public Class FOSSEEFlowsheet
Public Property Address As String = ""
Public Property ProposerName As String = ""
Public Property Title As String = ""
Public Property Institution As String = ""
Public Property DWSIMVersion As String = ""
Public Property Reference As String = ""
Public Property DownloadLink As String = ""
Public Property DisplayName As String = ""
End Class
Public Class FOSSEEFlowsheets
Public Shared Function GetFOSSEEFlowsheets() As List(Of FOSSEEFlowsheet)
Dim website As String = "http://dwsim.fossee.in/flowsheeting-project/completed-flowsheet"
Dim siteUri As Uri = New Uri(website)
Dim proxyUri As Uri = Net.WebRequest.GetSystemWebProxy.GetProxy(siteUri)
Dim handler As New HttpClientHandler()
Try
If Not siteUri.AbsolutePath = proxyUri.AbsolutePath Then
Dim proxyObj As New WebProxy(proxyUri)
proxyObj.Credentials = CredentialCache.DefaultCredentials
handler.Proxy = proxyObj
End If
Catch ex As Exception
End Try
Dim http As New HttpClient(handler)
Dim response = http.GetByteArrayAsync(website)
response.Wait()
Dim enc = Encoding.GetEncoding("utf-8")
Dim source As [String] = enc.GetString(response.Result, 0, response.Result.Length - 1)
source = WebUtility.HtmlDecode(source)
Dim htmlpage As New HtmlDocument()
htmlpage.LoadHtml(source)
Dim tbody = htmlpage.DocumentNode.Descendants("tbody").FirstOrDefault
If tbody Is Nothing Then Return New List(Of FOSSEEFlowsheet)
Dim rows = tbody.Descendants("tr").ToList
Dim list As New List(Of FOSSEEFlowsheet)
Dim i As Integer = 1
For Each r In rows
Dim fs As New FOSSEEFlowsheet
fs.Address = "http://dwsim.fossee.in" & r.ChildNodes(1).ChildNodes(0).Attributes(0).Value
With fs
.Institution = r.ChildNodes(3).ChildNodes(0).InnerText
.ProposerName = r.ChildNodes(2).ChildNodes(0).InnerText
.Title = r.ChildNodes(1).ChildNodes(0).InnerText
.DownloadLink = fs.Address.Replace("dwsim-flowsheet-run", "full-download/project")
.DisplayName = i.ToString("000") + ". " + .Title
End With
list.Add(fs)
i += 1
Next
Return list.Where(Function(x) Not x.ProposerName.Contains("Daniel Wagner") And Not x.ProposerName.Contains("Daniel Wagner")).ToList
End Function
Public Shared Function GetFOSSEEFlowsheetInfo(address As String) As FOSSEEFlowsheet
Dim website As String = "http://dwsim.fossee.in/flowsheeting-project/completed-flowsheet"
Dim siteUri As Uri = New Uri(website)
Dim proxyUri As Uri = Net.WebRequest.GetSystemWebProxy.GetProxy(siteUri)
Dim fs As New FOSSEEFlowsheet
fs.Address = address
Dim handler2 As New HttpClientHandler()
Try
If Not siteUri.AbsolutePath = proxyUri.AbsolutePath Then
Dim proxyObj2 As New WebProxy(proxyUri)
proxyObj2.Credentials = CredentialCache.DefaultCredentials
handler2.Proxy = proxyObj2
End If
Catch ex As Exception
End Try
Dim http2 As New HttpClient(handler2)
Dim response2 = http2.GetByteArrayAsync(fs.Address)
response2.Wait()
Dim source2 As [String] = Encoding.GetEncoding("utf-8").GetString(response2.Result, 0, response2.Result.Length - 1)
source2 = WebUtility.HtmlDecode(source2)
Dim htmlpage2 As New HtmlDocument()
htmlpage2.LoadHtml(source2)
Dim details = htmlpage2.DocumentNode.Descendants("div").Where(Function(x) x.Attributes.Contains("id") AndAlso x.Attributes("id").Value = "ajax_flowsheet_details").FirstOrDefault.ChildNodes.Descendants("li").ToList
With fs
.DownloadLink = "http://dwsim.fossee.in" & htmlpage2.DocumentNode.Descendants("a").Where(Function(x) x.InnerText = "Download Flowsheet").SingleOrDefault.Attributes("href").Value
.DWSIMVersion = details(3).InnerText.Split(":")(1).Trim()
.Institution = details(2).InnerText.Split(":")(1).Trim()
.ProposerName = details(0).InnerText.Split(":")(1).Trim()
.Reference = details(4).InnerText.Remove(0, 11)
.Title = details(1).InnerText.Split(":")(1).Trim()
End With
Return fs
End Function
Public Shared Function LoadFlowsheet(fpath As String) As XDocument
Dim fpath2 = Path.Combine(Path.GetTempPath(), "FOSSEE_DWSIM_TEMP")
Directory.CreateDirectory(fpath2)
Dim simname As String = ""
Dim pdffiledir = GlobalSettings.Settings.GetConfigFileDir() + "FOSSEE"
If Not Directory.Exists(pdffiledir) Then Directory.CreateDirectory(pdffiledir)
Dim abstractfile As String = ""
Dim abstractfile0 As String = ""
ZipFile.ExtractToDirectory(fpath, fpath2)
Dim subdirs = Directory.GetDirectories(fpath2)
Dim rootdir = fpath2
If subdirs.Count > 0 Then rootdir = subdirs(0)
For Each file In Directory.GetFiles(rootdir)
If Path.GetExtension(file).ToLower = ".dwxmz" Or Path.GetExtension(file).ToLower = ".dwxml" Then
simname = file
ElseIf Path.GetExtension(file).ToLower = ".pdf" Then
abstractfile0 = file
End If
Next
Dim xdoc As XDocument = Nothing
If Path.GetExtension(simname).ToLower = ".dwxmz" Then
xdoc = LoadZippedXML(simname)
Else
xdoc = XDocument.Load(simname)
End If
If abstractfile0 <> "" Then
Try
File.Copy(abstractfile0, Path.Combine(pdffiledir, Path.GetFileName(abstractfile0)), True)
abstractfile = Path.Combine(pdffiledir, Path.GetFileName(abstractfile0))
Catch ex As Exception
Console.WriteLine("Error copying " & abstractfile0 & ": " & ex.ToString)
End Try
End If
Try
File.Delete(fpath)
Catch ex As Exception
Console.WriteLine("Error deleting " & fpath & ": " & ex.ToString)
End Try
Try
Directory.Delete(fpath2, True)
Catch ex As Exception
Console.WriteLine("Error deleting " & fpath2 & ": " & ex.ToString)
End Try
If abstractfile <> "" Then
Task.Factory.StartNew(Sub()
Dim p = Process.Start(abstractfile)
p?.WaitForExit()
If MessageBox.Show(String.Format("Delete Abstract File '{0}'?", abstractfile), "Delete Abstract File", MessageBoxButtons.YesNo, MessageBoxIcon.Question) = DialogResult.Yes Then
Try
File.Delete(abstractfile)
MessageBox.Show("Abstract File deleted successfully.", "DWSIM")
Catch ex As Exception
MessageBox.Show(ex.Message, "Error deleting Abstract File")
End Try
End If
End Sub)
End If
Return xdoc
End Function
Public Shared Function DownloadFlowsheet(address As String, pa As Action(Of Integer)) As String
Dim wc As New WebClient()
Dim siteUri As Uri = New Uri(address)
Dim proxyUri As Uri = Net.WebRequest.GetSystemWebProxy.GetProxy(siteUri)
Try
If Not siteUri.AbsolutePath = proxyUri.AbsolutePath Then
Dim proxyObj As New WebProxy(proxyUri)
proxyObj.Credentials = CredentialCache.DefaultCredentials
wc.Proxy = proxyObj
End If
Catch ex As Exception
End Try
Dim fpath = Utility.GetTempFileName()
AddHandler wc.DownloadProgressChanged, Sub(sender, e)
If pa IsNot Nothing Then pa.Invoke(e.ProgressPercentage)
End Sub
Dim t = wc.DownloadFileTaskAsync(New Uri(address), fpath)
While Not t.IsCompleted
Thread.Sleep(100)
End While
Return fpath
End Function
Private Shared Function LoadZippedXML(pathtofile As String) As XDocument
Dim pathtosave As String = Path.Combine(Path.GetTempPath(), "FOSSEE_DWSIM_TEMP_EXTRACT")
Directory.CreateDirectory(pathtosave)
Dim fullname As String = ""
ZipFile.ExtractToDirectory(pathtofile, pathtosave)
For Each file In Directory.GetFiles(pathtosave)
If Path.GetExtension(file).ToLower = ".xml" Or Path.GetExtension(file).ToLower = ".dwxml" Then
fullname = file
End If
Next
Dim xdoc = XDocument.Load(fullname)
Try
File.Delete(fullname)
Catch ex As Exception
End Try
Try
Directory.Delete(pathtosave)
Catch ex As Exception
End Try
Return xdoc
End Function
End Class
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