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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;
using Tango.Core.Commands;
using Tango.Integration.Logging;
using Tango.Logging;
namespace Tango.FSE.LogViewer.UI.ViewModels
{
public class LayoutViewVM : LogViewerViewModel
{
private ICollectionView _view;
public ObservableCollection<LogFileTabViewVM> LogFiles { get; set; }
private LogFileTabViewVM _selectedLogFile;
public LogFileTabViewVM SelectedLogFile
{
get { return _selectedLogFile; }
set { _selectedLogFile = value; RaisePropertyChangedAuto(); OnSelectedLogFileChanged(); }
}
private String _filter;
public String Filter
{
get { return _filter; }
set { _filter = value; RaisePropertyChangedAuto(); OnFilterChanged(); }
}
public RelayCommand OpenLogFileCommand { get; set; }
public RelayCommand<LogFileTabViewVM> CloseLogFileCommand { get; set; }
public LayoutViewVM()
{
LogFiles = new ObservableCollection<LogFileTabViewVM>();
OpenLogFileCommand = new RelayCommand(OpenLogFile);
CloseLogFileCommand = new RelayCommand<LogFileTabViewVM>(CloseLogFile);
LogFiles.Add(new LogFileTabViewVM() { Name = "Log File 1.log" });
LogFiles.Add(new LogFileTabViewVM() { Name = "Log File With Long File Name 2.log" });
LogFiles.Add(new LogFileTabViewVM() { Name = "Log File 3.log" });
}
private async void OpenLogFile()
{
var result = await StorageProvider.OpenFiles("Browse for log files", "Twine Log Files|*.log");
if (result.Confirmed)
{
foreach (var file in result.SelectedItems)
{
await OpenLogFile(file);
}
}
}
private async Task OpenLogFile(String file)
{
List<LogItemBase> logs = new List<LogItemBase>();
LogFileTabViewVM logFile = new LogFileTabViewVM();
using (NotificationProvider.PushTaskItem($"Loading '{Path.GetFileName(file)}'..."))
{
DateTime createdTime = File.GetCreationTime(file);
await Task.Delay(1500);
await Task.Factory.StartNew(() =>
{
if (!file.StartsWith("Embedded"))
{
ApplicationLogFileParser parser = new ApplicationLogFileParser();
logs = parser.Parse(file, createdTime);
}
else
{
EmbeddedLogFileParser parser = new EmbeddedLogFileParser();
logs = parser.Parse(file, createdTime).Cast<LogItemBase>().ToList();
logFile.IsEmbedded = true;
}
logFile.Name = Path.GetFileName(file);
logFile.File = file;
logFile.Size = Core.Helpers.FileHelper.GetFriendlyFileSize(new FileInfo(file).Length);
logFile.StartTime = createdTime;
logFile.EndTime = logs.Last().TimeStamp;
});
logFile.Logs = new ObservableCollection<LogItemBase>(logs);
LogFiles.Add(logFile);
SelectedLogFile = logFile;
}
}
private void CloseLogFile(LogFileTabViewVM logFile)
{
int index = LogFiles.IndexOf(logFile);
if (SelectedLogFile == logFile)
{
if (LogFiles.Count > index)
{
SelectedLogFile = LogFiles[index];
}
else if (LogFiles.Count > 0)
{
SelectedLogFile = LogFiles[index - 1];
}
else
{
SelectedLogFile = null;
}
}
LogFiles.Remove(logFile);
}
private void OnSelectedLogFileChanged()
{
if (_view != null)
{
_view.Filter = null;
_view.Refresh();
}
if (SelectedLogFile != null)
{
_view = CollectionViewSource.GetDefaultView(SelectedLogFile.Logs);
_view.Filter = FilterLogs;
}
}
private void OnFilterChanged()
{
_view?.Refresh();
}
private bool FilterLogs(object obj)
{
LogItemBase log = obj as LogItemBase;
if (String.IsNullOrWhiteSpace(Filter)) return true;
if (Filter.Contains("|"))
{
List<String> keywords = Filter.Split('|').ToList();
if (keywords.Any(x => log.Category.ToString().ToLower() == x.ToLower()))
{
return true;
}
}
else
{
if (log.Category.ToString().ToLower() == Filter.ToLower())
{
return true;
}
}
if (log.TimeStamp.ToString("HH:mm:ss").Contains(Filter))
{
return true;
}
if (log.Message.ToLower().Contains(Filter.ToLower()))
{
return true;
}
return false;
}
}
}
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