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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.DTO;
using Tango.BL.Entities;
using Tango.FSE.BL.CacheEntities;
using Tango.FSE.Web.Messages;
namespace Tango.FSE.BL.Services
{
public class TangoVersionsService : FSEServiceBase
{
private const string TANGO_VERSIONS_COLLECTION = "TangoVersions";
private MemoryCacheDoubleKeyDictionary<String, String, CachedTangoVersion> _tangoVersionsCache;
public TangoVersionsService()
{
_tangoVersionsCache = MemoryCache.GetOrCreateCache<String, String, CachedTangoVersion>(TANGO_VERSIONS_COLLECTION);
}
/// <summary>
/// Gets all the available PPC/Firmware versions history.
/// </summary>
/// <returns></returns>
public Task<List<TangoVersion>> GetAllTangoVersions()
{
return DataResolver<List<TangoVersion>>.Builder.New()
.ConfigureCascade(DataResolverNode.InMemoryCache, DataResolverNode.Web, DataResolverNode.Online, DataResolverNode.DiskCache)
.InMemoryCache((context) =>
{
var tangoVersions = _tangoVersionsCache
.ToList()
.Where(x => x.EnvironmentID == Authentication.CurrentEnvironment.ID)
.Select(x => x.TangoVersion.ToObservable())
.OrderByDescending(x => Version.Parse(x.Version))
.ToList();
if (tangoVersions.Count == 0)
{
throw new IndexOutOfRangeException("The memory cache did contain any Tango versions.");
}
return tangoVersions;
})
.Web((context) =>
{
var tangoVersions = WebClient.GetTangoVersions(new GetTangoVersionsRequest()).GetAwaiter().GetResult()
.Versions
.Select(x => x.ToObservable())
.ToList();
using (var cache = DiskCache.CreateContext())
{
var collection = cache.Database.GetCollection<CachedTangoVersion>(TANGO_VERSIONS_COLLECTION);
foreach (var tangoVersion in tangoVersions)
{
try
{
var tangoVersionDTO = TangoVersionDTO.FromObservable(tangoVersion);
CachedTangoVersion cachedTangoVersion = new CachedTangoVersion();
cachedTangoVersion.EnvironmentID = Authentication.CurrentEnvironment.ID;
cachedTangoVersion.TangoVersion = tangoVersionDTO;
_tangoVersionsCache.Put(tangoVersion.Version, Authentication.CurrentEnvironment.ID, cachedTangoVersion);
collection.Upsert(cachedTangoVersion);
}
catch (Exception ex)
{
LogManager.Log(ex, $"Error caching Tango version '{tangoVersion.Version}' on disk.");
}
}
}
return tangoVersions;
})
.Online((context) =>
{
using (ObservablesContext db = ObservablesContext.CreateDefault())
{
var tangoVersions = db.TangoVersions.ToList().OrderByDescending(x => Version.Parse(x.Version)).ToList();
using (var cache = DiskCache.CreateContext())
{
var collection = cache.Database.GetCollection<CachedTangoVersion>(TANGO_VERSIONS_COLLECTION);
foreach (var tangoVersion in tangoVersions)
{
try
{
var tangoVersionDTO = TangoVersionDTO.FromObservable(tangoVersion);
CachedTangoVersion cachedTangoVersion = new CachedTangoVersion();
cachedTangoVersion.EnvironmentID = Authentication.CurrentEnvironment.ID;
cachedTangoVersion.TangoVersion = tangoVersionDTO;
_tangoVersionsCache.Put(tangoVersion.Version, Authentication.CurrentEnvironment.ID, cachedTangoVersion);
collection.Upsert(cachedTangoVersion);
}
catch (Exception ex)
{
LogManager.Log(ex, $"Error caching Tango version '{tangoVersion.Version}' on disk.");
}
}
}
return tangoVersions;
}
})
.DiskCache((context) =>
{
using (var cache = DiskCache.CreateContext())
{
var collection = cache.Database.GetCollection<CachedTangoVersion>(TANGO_VERSIONS_COLLECTION);
return collection
.Find(x => x.EnvironmentID == Authentication.CurrentEnvironment.ID)
.ToList()
.Select(x => x.TangoVersion.ToObservable())
.ToList()
.OrderByDescending(x => Version.Parse(x.Version))
.ToList();
}
})
.BuildExecuteAsync();
}
public Task UploadCachedTupFile(TangoVersion version, String tupFilePath)
{
return Task.Factory.StartNew(() =>
{
using (var cache = DiskCache.CreateContext())
{
cache.Database.FileStorage.Upload(CreateCachedTangoVersionFileName(version), tupFilePath);
}
});
}
public Task UploadCachedTfpFile(TangoVersion version, String tfpFilePath)
{
return Task.Factory.StartNew(() =>
{
using (var cache = DiskCache.CreateContext())
{
cache.Database.FileStorage.Upload(CreateCachedFirmwareVersionFileName(version), tfpFilePath);
}
});
}
public Task DownloadCachedTupFile(TangoVersion version, String outputFilePath)
{
return Task.Factory.StartNew(() =>
{
using (var cache = DiskCache.CreateContext())
{
var file = cache.Database.FileStorage.FindById(CreateCachedTangoVersionFileName(version));
if (file == null)
{
throw new KeyNotFoundException("The specified version cache could not be found.");
}
file.SaveAs(outputFilePath, true);
}
});
}
public Task DownloadCachedTfpFile(TangoVersion version, String outputFilePath)
{
return Task.Factory.StartNew(() =>
{
using (var cache = DiskCache.CreateContext())
{
var file = cache.Database.FileStorage.FindById(CreateCachedFirmwareVersionFileName(version));
if (file == null)
{
throw new KeyNotFoundException("The specified version cache could not be found.");
}
file.SaveAs(outputFilePath, true);
}
});
}
public bool IsCachedTupFileExists(TangoVersion version)
{
using (var cache = DiskCache.CreateContext())
{
return cache.Database.FileStorage.FindById(CreateCachedTangoVersionFileName(version)) != null;
}
}
public bool IsCachedTfpFileExists(TangoVersion version)
{
using (var cache = DiskCache.CreateContext())
{
return cache.Database.FileStorage.FindById(CreateCachedFirmwareVersionFileName(version)) != null;
}
}
private String CreateCachedTangoVersionFileName(TangoVersion version)
{
return $"$/TangoVersions/application_package_v{version.VersionAndTag}.tup";
}
private String CreateCachedFirmwareVersionFileName(TangoVersion version)
{
return $"$/TangoVersions/firmware_package_v{version.FirmwareVersion}.tfp";
}
}
}
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