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using LiteDB;
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Enumerations;
namespace Tango.Insights
{
public class InsightsManager : IDisposable
{
private const string INSIGHTS_COLLECTION = "Insights";
private const string STATUSES_COLLECTION = "Statuses";
private const string APPLICATION_EXCEPTIONS_COLLECTION = "ApplicationExceptions";
private bool _disposed;
private static InsightsManager _instance;
public static InsightsManager Default
{
get
{
if (_instance == null)
{
_instance = new InsightsManager(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Twine", "Tango", "Insights", Path.GetFileNameWithoutExtension(AppDomain.CurrentDomain.FriendlyName) + ".insights"));
}
return _instance;
}
}
private LiteDatabase _database;
public String DatabasePath { get; private set; }
private InsightsManager(String databasePath)
{
DatabasePath = databasePath;
Directory.CreateDirectory(Path.GetDirectoryName(DatabasePath));
_database = new LiteDatabase($"Filename={DatabasePath}");
_database.Pragma("TIMEOUT", 10); //Read Timeout
_database.Pragma("UTC_DATE", true); //Keep time as UTC when getting data
_database.Commit();
}
public virtual void Dispose()
{
if (_database != null)
{
try
{
_disposed = true;
_database.Dispose();
_database = null;
}
catch { }
}
}
~InsightsManager()
{
Dispose();
}
private ILiteCollection<InsightsFrame> GetInsightsCollection()
{
return _database.GetCollection<InsightsFrame>(INSIGHTS_COLLECTION);
}
private ILiteCollection<InsightsStatus> GetStatusesCollection()
{
return _database.GetCollection<InsightsStatus>(STATUSES_COLLECTION);
}
private ILiteCollection<InsightsApplicationException> GetApplicationExceptionsCollection()
{
return _database.GetCollection<InsightsApplicationException>(APPLICATION_EXCEPTIONS_COLLECTION);
}
public virtual void InsertFrame(InsightsFrame frame)
{
if (_disposed) return;
var collection = GetInsightsCollection();
collection.Insert(frame);
}
public virtual void InsertStatus(InsightsStatus status)
{
if (_disposed) return;
var collection = GetStatusesCollection();
collection.Insert(status);
}
public virtual void InsertApplicationException(InsightsApplicationException appException)
{
if (_disposed) return;
var collection = GetApplicationExceptionsCollection();
appException.Time = appException.Time.Subtract(TimeSpan.FromSeconds(30));
collection.Insert(appException);
}
public virtual List<InsightsFrame> GetFrames(DateTime startUTC, DateTime endUTC)
{
var collection = GetInsightsCollection();
return collection.Find(x => x.Time >= startUTC && x.Time <= endUTC).ToList().OrderBy(x => x.Time).ToList();
}
public virtual List<InsightsStatus> GetStatuses(DateTime startUTC, DateTime endUTC)
{
var collection = GetStatusesCollection();
return collection.Find(x => x.Time >= startUTC && x.Time <= endUTC).ToList().OrderBy(x => x.Time).ToList();
}
public virtual List<InsightsApplicationException> GetApplicationExceptions(DateTime startUTC, DateTime endUTC)
{
var collection = GetApplicationExceptionsCollection();
return collection.Find(x => x.Time >= startUTC && x.Time <= endUTC).ToList().OrderBy(x => x.Time).ToList();
}
public virtual int DeleteFrames(DateTime maxDateUTC)
{
if (_disposed) return 0;
var collection = GetInsightsCollection();
return collection.DeleteMany(x => x.Time < maxDateUTC);
}
public virtual int DeleteStatuses(DateTime maxDateUTC)
{
if (_disposed) return 0;
var collection = GetStatusesCollection();
return collection.DeleteMany(x => x.Time < maxDateUTC);
}
public virtual int DeleteApplicationExceptions(DateTime maxDateUTC)
{
if (_disposed) return 0;
var collection = GetApplicationExceptionsCollection();
return collection.DeleteMany(x => x.Time < maxDateUTC);
}
public DateTime? GetFramesMinDate()
{
if (_disposed) return null;
var collection = GetInsightsCollection();
if (collection.Count() > 0)
{
return collection.Min(x => x.Time);
}
else
{
return null;
}
}
public virtual List<InsightsEvent> GetEvents(DateTime startUTC, DateTime endUTC, bool limitToMinFramesTime = true)
{
using (ObservablesContext db = ObservablesContext.CreateDefault())
{
List<InsightsEvent> events = db.MachinesEvents
.Where(x => x.DateTime >= startUTC && x.DateTime <= endUTC)
.Include(x => x.EventType)
.Select(x => new InsightsEvent()
{
Time = x.DateTime,
EventCode = x.EventType.Code,
Description = x.Description
})
.ToList()
.Where(x => (EventTypes)x.EventCode != EventTypes.APPLICATION_EXCEPTION)
.Select(x => new InsightsEvent()
{
Time = x.Time,
EventCode = x.EventCode,
Description = ((EventTypes)x.EventCode == EventTypes.JOB_FAILED ? x.Description : null)
})
.OrderBy(x => x.Time)
.ToList();
if (limitToMinFramesTime)
{
var collection = GetInsightsCollection();
if (collection.Count() > 0)
{
var minTime = collection.Min(x => x.Time);
events.RemoveAll(x => x.Time < minTime);
}
}
return events;
}
}
}
}
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