Neural Dot Net Pt 3 The Adaline Network

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Text;
using System.Security;
using System.Diagnostics;
using System.Threading;

namespace LogViewer
{
	/// <summary>
	/// Summary description for UserControl1.
	/// </summary>
	public class LogViewer : System.Windows.Forms.UserControl
	{
		/// <summary>
		/// private class to hoild the log details
		/// </summary>
		private class LogData
		{
			private string strElement;
			private string strTime;
			private string strPriority;
			private string strMessage;

			public LogData()
			{
			}

			public string Element
			{
				get
				{
					return strElement;
				}
				set
				{
					strElement = value;
				}
			}

			public string Time
			{
				get
				{
					return strTime;
				}
				set
				{
					strTime = value;
				}
			}

			public string Priority
			{
				get
				{
					return strPriority;
				}
				set
				{
					strPriority = value;
				}
			}

			public string Message
			{
				get
				{
					return strMessage;
				}
				set
				{
					strMessage = value;
				}
			}
		}

		/// <summary>
		/// private class to hold file data
		/// </summary>
		private class FileData
		{
			private string strFile;
			private string strElement;
			private string strName;

			public FileData()
			{
			}

			public string File
			{
				get
				{
					return strFile;
				}
				set
				{
					strFile = value;
				}
			}

			public string Element
			{
				get
				{
					return strElement;
				}
				set
				{
					strElement = value;
				}
			}

			public string Name
			{
				get
				{
					return strName;
				}
				set
				{
					strName = value;
				}
			}
		}
		private LogViewerTabPage tabPage1;
		private string strFileName;
		private string strEventLog;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button logViewerBrowser;
		private System.Windows.Forms.OpenFileDialog logViewerOpenFileDialog;
		private XmlTextReader xmlReader;
		private ArrayList arrayLogData;
		private System.Windows.Forms.TextBox fileNameBox;
		private System.Windows.Forms.TextBox eventLogBox;
		private AxSHDocVw.AxWebBrowser axWebBrowser1;
		private System.Windows.Forms.TreeView logViewerTree;
		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.Splitter splitter1;
		private System.Windows.Forms.ProgressBar progressBar1;
		private StreamWriter stream;
		private StringBuilder strHtml = new StringBuilder(); 
		ThreadStart threadStart;
		Thread thread;
		private System.Windows.Forms.Timer timerThread;
		private System.ComponentModel.IContainer components;

		/// <summary>
		/// The fileName of the xml file containing the log. 
		/// </summary>
		public string FileName
		{
			get
			{
				return strFileName;
			}
			set
			{
				strFileName = value;
			}
		}

		/// <summary>
		/// The Name of the Event Log Details to view
		/// </summary>
		public string EventLog
		{
			get
			{
				return strEventLog;
			}
			set
			{
				strEventLog = value;
			}
		}

		/// <summary>
		/// constructor
		/// </summary>
		public LogViewer()
		{
		
			this.tabPage1 = new LogViewerTabPage( this );			

			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
			fileNameBox.Text = string.Empty;
			eventLogBox.Text = string.Empty;
			FileName = string.Empty;

			// TODO: Add any initialization after the InitForm call
	///		this.button1.Click += new System.EventHandler( OnGetLogs );
			arrayLogData = new ArrayList();
			this.tabPage1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right);
			this.tabPage1.Location = new System.Drawing.Point(4, 22);
			this.tabPage1.Name = "tabPage1";
			this.tabPage1.Size = new System.Drawing.Size(456, 230);
			this.tabPage1.TabIndex = 0;
			this.tabPage1.Text = "Event Viewer Errors";

			this.tabPage1.ResumeLayout(false);

			progressBar1.Hide();
			eventLogBox.Hide();
			button1.Hide();
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			try
			{
				if( disposing )
				{
					if( components != null )
						components.Dispose();
				}
				base.Dispose( disposing );
			}
				/// explorer throws an exception on dispose if not shown
			catch( System.Reflection.TargetInvocationException )
			{
			}
		}

		#region Component Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(LogViewer));
			this.label1 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.fileNameBox = new System.Windows.Forms.TextBox();
			this.eventLogBox = new System.Windows.Forms.TextBox();
			this.logViewerBrowser = new System.Windows.Forms.Button();
			this.logViewerOpenFileDialog = new System.Windows.Forms.OpenFileDialog();
			this.logViewerTree = new System.Windows.Forms.TreeView();
			this.axWebBrowser1 = new AxSHDocVw.AxWebBrowser();
			this.panel1 = new System.Windows.Forms.Panel();
			this.splitter1 = new System.Windows.Forms.Splitter();
			this.progressBar1 = new System.Windows.Forms.ProgressBar();
			this.timerThread = new System.Windows.Forms.Timer(this.components);
			((System.ComponentModel.ISupportInitialize)(this.axWebBrowser1)).BeginInit();
			this.panel1.SuspendLayout();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(8, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(56, 16);
			this.label1.TabIndex = 1;
			this.label1.Text = "FileName";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(376, 16);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(72, 24);
			this.button1.TabIndex = 2;
			this.button1.Text = "Get Logs";
			// 
			// fileNameBox
			// 
			this.fileNameBox.Location = new System.Drawing.Point(64, 16);
			this.fileNameBox.Name = "fileNameBox";
			this.fileNameBox.TabIndex = 3;
			this.fileNameBox.Text = "textBox1";
			// 
			// eventLogBox
			// 
			this.eventLogBox.Location = new System.Drawing.Point(272, 16);
			this.eventLogBox.Name = "eventLogBox";
			this.eventLogBox.TabIndex = 5;
			this.eventLogBox.Text = "textBox2";
			// 
			// logViewerBrowser
			// 
			this.logViewerBrowser.Location = new System.Drawing.Point(64, 40);
			this.logViewerBrowser.Name = "logViewerBrowser";
			this.logViewerBrowser.TabIndex = 6;
			this.logViewerBrowser.Text = "Browse";
			this.logViewerBrowser.Click += new System.EventHandler(this.OnLogViewerBrowse);
			// 
			// logViewerTree
			// 
			this.logViewerTree.BackColor = System.Drawing.SystemColors.ScrollBar;
			this.logViewerTree.BorderStyle = System.Windows.Forms.BorderStyle.None;
			this.logViewerTree.Dock = System.Windows.Forms.DockStyle.Right;
			this.logViewerTree.ImageIndex = -1;
			this.logViewerTree.Location = new System.Drawing.Point(284, 0);
			this.logViewerTree.Name = "logViewerTree";
			this.logViewerTree.SelectedImageIndex = -1;
			this.logViewerTree.Size = new System.Drawing.Size(180, 256);
			this.logViewerTree.TabIndex = 7;
			this.logViewerTree.DoubleClick += new System.EventHandler(this.OnSelectPage);
			// 
			// axWebBrowser1
			// 
			this.axWebBrowser1.ContainingControl = this;
			this.axWebBrowser1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.axWebBrowser1.Enabled = true;
			this.axWebBrowser1.Location = new System.Drawing.Point(0, 0);
			this.axWebBrowser1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axWebBrowser1.OcxState")));
			this.axWebBrowser1.Size = new System.Drawing.Size(281, 256);
			this.axWebBrowser1.TabIndex = 8;
			// 
			// panel1
			// 
			this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.panel1.Controls.Add(this.axWebBrowser1);
			this.panel1.Controls.Add(this.splitter1);
			this.panel1.Controls.Add(this.logViewerTree);
			this.panel1.Location = new System.Drawing.Point(0, 80);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(464, 256);
			this.panel1.TabIndex = 9;
			// 
			// splitter1
			// 
			this.splitter1.Dock = System.Windows.Forms.DockStyle.Right;
			this.splitter1.Location = new System.Drawing.Point(281, 0);
			this.splitter1.Name = "splitter1";
			this.splitter1.Size = new System.Drawing.Size(3, 256);
			this.splitter1.TabIndex = 9;
			this.splitter1.TabStop = false;
			// 
			// progressBar1
			// 
			this.progressBar1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.progressBar1.Location = new System.Drawing.Point(208, 48);
			this.progressBar1.Name = "progressBar1";
			this.progressBar1.Size = new System.Drawing.Size(248, 23);
			this.progressBar1.TabIndex = 10;
			// 
			// timerThread
			// 
			this.timerThread.Interval = 1000;
			this.timerThread.Tick += new System.EventHandler(this.OnTimerTick);
			// 
			// LogViewer
			// 
			this.Controls.Add(this.progressBar1);
			this.Controls.Add(this.logViewerBrowser);
			this.Controls.Add(this.eventLogBox);
			this.Controls.Add(this.fileNameBox);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.panel1);
			this.Name = "LogViewer";
			this.Size = new System.Drawing.Size(464, 336);
			((System.ComponentModel.ISupportInitialize)(this.axWebBrowser1)).EndInit();
			this.panel1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// Select an xml file
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void OnLogViewerBrowse(object sender, System.EventArgs e)
		{
			logViewerOpenFileDialog = new OpenFileDialog();
			logViewerOpenFileDialog.DefaultExt = ".xml";
			logViewerOpenFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
			logViewerOpenFileDialog.ReadOnlyChecked = true;
			logViewerOpenFileDialog.Title = "LogViewer Open XML File";
			logViewerOpenFileDialog.Filter = "All Files (*.*)|*.*|XML Files (*.xml)|.xml";
			if( logViewerOpenFileDialog.ShowDialog( this ) == DialogResult.OK )
			{
				FileName = logViewerOpenFileDialog.FileName;
				fileNameBox.Text = FileName;
				
			}

			progressBar1.Show();

			OnGetLogsThread();

		}

		private void OnGetLogsThread()
		{

			Cursor.Current = Cursors.WaitCursor;
			threadStart = new ThreadStart( OnGetLogs );
			thread = new Thread( threadStart );


			/// remove all html files
			string[] arrayHtml = Directory.GetFiles( Directory.GetCurrentDirectory(), "*.htm" );

			for( int i=0; i<arrayHtml.Length; i++ )
			{
				FileInfo info = new FileInfo( arrayHtml[ i ] );
				info.Delete();
			}

			logViewerTree.Nodes.Clear();

			timerThread.Start();

			thread.Start();
					
			progressBar1.PerformStep();

			Cursor.Current = Cursors.Default;
		}

		/// <summary>
		/// Once the user selects an xml file or an event log the seperate parts are written to
		/// their own htm files which are then loaded into the embedded explorer controls on the tab pages
		/// 
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		public void OnGetLogs()
		{

			StringBuilder strElement = new StringBuilder();
			StringBuilder strTime = new StringBuilder();
			StringBuilder strPriority = new StringBuilder();
			StringBuilder strMessage = new StringBuilder();
			StringBuilder strTemp = new StringBuilder();
			ArrayList arrayFileList = new ArrayList();
			

			if( FileName != null && FileName != string.Empty )
			{
				FileStream fileStream = new FileStream( FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 8, true );
				xmlReader = new XmlTextReader( fileStream );

				try
				{
					bool bElement = false;

					/// get the data from the file before processing
					while( xmlReader.Read() == true )
					{
						switch( xmlReader.NodeType )
						{
							case XmlNodeType.Element : 
							{
								switch( xmlReader.Name )
								{
									case "Time" : 
									{
										xmlReader.Read();
										strTime.Remove( 0, strTime.Length );
										strTime.Append( xmlReader.Value );
									}break;
									case "Priority" : 
									{
										xmlReader.Read();
										strPriority.Remove( 0, strPriority.Length );
										strPriority.Append( xmlReader.Value );
									}break;
									case "Message" : 
									{
										xmlReader.Read();
										strMessage.Remove( 0, strMessage.Length );
										strMessage.Append( xmlReader.Value );
										bElement = false;
									}break;
									default :
									{
										strElement.Remove( 0, strElement.Length );
										strElement.Append( xmlReader.LocalName );
										bElement = true;
									}break;
								}

								if( bElement == false )
								{
									LogData data = new LogData();
									data.Element = strElement.ToString();
									data.Time = strTime.ToString();
									data.Priority = strPriority.ToString();
									data.Message = strMessage.ToString();

									arrayLogData.Add( data );
								}
							} break;
						}
					}
				}
				catch( XmlException xmlExp )
				{
					MessageBox.Show( "Error opening xml file " + xmlExp.Message );
				}
			}

			/// now process the data
			int nCount = arrayLogData.Count;
			string strEnd = "\n\t\t\t</TABLE>\n\t\t</FORM>\n\t</BODY>\n</HTML>";

			progressBar1.Maximum = nCount;
			progressBar1.Step = 1;
			progressBar1.Minimum = 0;
			progressBar1.Value = 0;
			
			for( int i=0; i<nCount; i++ )
			{
				LogData data = ( LogData )arrayLogData[ i ];
				if( strHtml != null && strHtml.Length > 0 )
					strHtml.Remove( 0, strHtml.Length );
				strHtml.Append( "<HTML>\n\t<HEAD>\n\t\t<TITLE>" + data.Element + "</TITLE>\n\t\t<META http-equiv=\"Content-Type\" content=\"text-html; charset=windows-1252\">\n\t\t</TITLE>\n\t</HEAD>\n\t<BODY>\n\t\t<FORM bgcolor=\"seashell\">\n\t\t\t<TABLE border=5 cellspacing=0 cellpadding=1 width=90%>" ); 

				FileInfo info = new FileInfo( data.Element + ".htm" );
				bool bInArray = false;
				if( arrayFileList != null && arrayFileList.Count != 0 )
				{
					foreach( FileData fileData in arrayFileList )
					{
						if( fileData.Element == data.Element )
							bInArray = true;
					}
				}

				FileStream fStream;
				if( bInArray == false )
				{
					info.Delete();
					fStream = info.Create();
					stream = new StreamWriter( fStream );

					FileData fileData = new FileData();
					fileData.Element = data.Element;
					fileData.File = info.FullName;
					fileData.Name = info.Name;
					arrayFileList.Add( fileData );

					stream.Write( strHtml.ToString(), 0, strHtml.Length );
				}
				else
				{
					try
					{
						stream = new StreamWriter( data.Element + ".htm", true );
					}
					catch( UnauthorizedAccessException uaExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + uaExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
					catch( ArgumentNullException argNullExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + argNullExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
					catch( ArgumentException argExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + argExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
					catch( DirectoryNotFoundException dirExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + dirExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
					catch( IOException ioExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + ioExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
					catch( SecurityException secExp )
					{
						MessageBox.Show( "Error opening the htm file " + data.Element + ".htm : " + secExp.Message );
						Cursor.Current = Cursors.Default;
						return;
					}
				}

				StreamWrite( stream, data );

				progressBar1.PerformStep();
			}

		

			/// end each html file
			foreach( FileData fileData in arrayFileList )
			{
				try
				{
					stream = new StreamWriter( fileData.File, true );
					stream.Write( strEnd, 0, strEnd.Length );
					stream.Close();
				}
				catch( UnauthorizedAccessException uaExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + uaExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
				catch( ArgumentNullException argNullExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + argNullExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
				catch( ArgumentException argExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + argExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
				catch( DirectoryNotFoundException dirExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + dirExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
				catch( IOException ioExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + ioExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
				catch( SecurityException secExp )
				{
					MessageBox.Show( "Error opening the htm file " + fileData.File + secExp.Message );
					Cursor.Current = Cursors.Default;
					return;
				}
			}

		}



		/// <summary>
		/// write a section of html to the htm file
		/// </summary>
		/// <param name="stream">Stream writer to write</param>
		/// <param name="data">Program Data to write</param>
		private void StreamWrite( StreamWriter stream, LogData data )
		{
			stream.Write( "\n\t\t\t\t<TR>\n\t\t\t\t\t<TD>" );
			stream.Write( "<FONT color=\"black\">" );
			stream.Write( data.Time );
			stream.Write( "\n\t\t\t\t\t</TD>" );
			stream.Write( "\n\t\t\t\t\t<TD>" );
			switch( data.Priority )
			{
				case "All" : stream.Write( "<FONT color=\"black\">" ); break;
				case "WarningsAndErrors" : stream.Write( "FONT color=\"gray\">" ); break;
				case "Errors" : stream.Write( "<FONT color=\"red\">" ); break;
				case "Warning" : stream.Write( "<FONT color=\"firebrick\">" ); break;
				case "Note" : stream.Write( "<FONT color=\"mediumblue\">" ); break;
				case "Important" : stream.Write( "<FONT color=\"cornflowerblue\">" ); break;
				case "HighLight" : stream.Write( "<FONT color=\"green\">" ); break;
				case "Progress" : stream.Write( "<FONT color=\"steelblue\">" ); break;
			}
			stream.Write( data.Priority );
			stream.Write( "</FONT>" );
			stream.Write( "\n\t\t\t\t\t</TD>" );
			stream.Write( "\n\t\t\t\t\t<TD>" );
			switch( data.Priority )
			{
				case "All" : stream.Write( "<FONT color=\"black\">" ); break;
				case "WarningsAndErrors" : stream.Write( "FONT color=\"gray\">" ); break;
				case "Errors" : stream.Write( "<FONT color=\"red\">" ); break;
				case "Warning" : stream.Write( "<FONT color=\"firebrick\">" ); break;
				case "Note" : stream.Write( "<FONT color=\"mediumblue\">" ); break;
				case "Important" : stream.Write( "<FONT color=\"cornflowerblue\">" ); break;
				case "HighLight" : stream.Write( "<FONT color=\"green\">" ); break;
				case "Progress" : stream.Write( "<FONT color=\"steelblue\">" ); break;
			}
			stream.Write( data.Message );
			stream.Write( "</FONT>" );
			stream.Write( "\n\t\t\t\t\t</TD>" );
			stream.Write( "\n\t</TR>" );

			stream.Close();
		}

		private void OnSelectPage(object sender, System.EventArgs e)
		{
			StringBuilder strPage = new StringBuilder();

			strPage.Append( Directory.GetCurrentDirectory() );
			strPage.Append( "\\" );
			strPage.Append( logViewerTree.SelectedNode.Text );
			strPage.Append( ".htm" );

			object flags = new object();
			object targetFrameName = new object();
			object postData = new object();
			object headers = new object();

			try
			{
				axWebBrowser1.Navigate( strPage.ToString(), ref flags, ref targetFrameName, ref postData, ref headers );
				/*	string strTest = ( string )targetFrameName;
					bool post = ( bool )postData;
					string strflags = ( string )flags;
					string strheaders = ( string )headers; */
			}
			catch( Exception exp )
			{
				MessageBox.Show( "Just Checking " + exp.Message );
			}
		}

		/// <summary>
		/// use a timer to wait for the thread to finish as using a wait is freezing the program
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void OnTimerTick(object sender, System.EventArgs e)
		{
			
			if( thread.IsAlive == false )
			{

				/// add all htm files to the display
				string[] arrayFiles = Directory.GetFiles( Directory.GetCurrentDirectory(), "*.htm" );
				StringBuilder strName = new StringBuilder( " " );
				StringBuilder strTest = new StringBuilder( " " );
				int nStartCount = 0;
				int nLetterCount = 0;
				for( int i=0; i<arrayFiles.Length; i++ )
				{
					strName.Remove( 0, strName.Length );
					nStartCount = arrayFiles[ i ].LastIndexOf( "\\" );
					strName.Append( arrayFiles[ i ].Substring( nStartCount+1 )  );
					nLetterCount = strName.ToString().IndexOf( ".htm" );
					strTest.Remove( 0, strTest.Length );
					strTest.Append( strName.ToString().Substring( 0, nLetterCount ) );
					logViewerTree.Nodes.Add( strTest.ToString() );

					strName.Remove( 0, strName.Length );
				}

				progressBar1.Hide();

				timerThread.Stop();
			}
		}
	}
}