public Stasher(
string purpose,
StashPlan plan,
StashRepo db,
IDataProtector dataProtector,
IMemoryCache cache,
MemoryCacheEntryOptions memoryItemOptions = null)
{
this.DB = db;
this.Cache = cache;
this.DataProtector = dataProtector;
this.Purpose = purpose;
this.Plan = plan;
// If developer chooses to instantiate standalone Stasher then we will need to deal with
// memItemOptions directly
if (memoryItemOptions == null)
{
this.MemoryItemOptions = new MemoryCacheEntryOptions()
{
AbsoluteExpirationRelativeToNow = TimeSpan.FromDays(1),
Size = 921600, // bytes = 900 kb
Priority = CacheItemPriority.High,
};
}
else
{
if (memoryItemOptions.Size == null)
{
memoryItemOptions.Size = 921600;
}
this.MemoryItemOptions = memoryItemOptions;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="StacheMeister"/> class.
/// </summary>
/// <param name="appId">appId.</param>
/// <param name="filename">filename.</param>
/// <param name="password">password.</param>
/// <param name="plan">plan.</param>
/// <param name="memCacheOptions">memCacheOptions.</param>
/// <param name="memoryItemOptions">memoryItemOptions.</param>
/// <param name="services">services.</param>
public StacheMeister(
string appId,
string filename = null,
string password = null,
StashPlan plan = StashPlan.spSerialize,
MemoryCacheOptions memCacheOptions = null,
MemoryCacheEntryOptions memoryItemOptions = null,
ServiceCollection services = null)
{
this.Plan = plan;
this.AppId = appId;
this.DB = new StashRepo(appId, filename, password);
ServiceCollection svcs = services ?? new ServiceCollection();
this.Services = svcs;
svcs.AddDataProtection();
svcs.AddMemoryCache();
this.ServiceProvider = svcs.BuildServiceProvider();
if (memCacheOptions == null)
{
this.Cache = new MemoryCache(new MemoryCacheOptions()
{
SizeLimit = 5242880, // bytes = 5 megs
CompactionPercentage = .50,
ExpirationScanFrequency = TimeSpan.FromMinutes(1),
});
}
else
{
this.Cache = new MemoryCache(memCacheOptions);
}
if (memoryItemOptions == null)
{
this.MemoryItemOptions = new MemoryCacheEntryOptions()
{
AbsoluteExpirationRelativeToNow = TimeSpan.FromDays(1),
Size = 921600, // bytes = 900 kb
Priority = CacheItemPriority.High,
};
}
else
{
if (memoryItemOptions.Size == null)
{
memoryItemOptions.Size = 921600;
}
this.MemoryItemOptions = memoryItemOptions;
}
this.DataProtectionProvider = this.ServiceProvider.GetService <IDataProtectionProvider>();
this.DataProtector = this.DataProtectionProvider.CreateProtector(appId);
this.DefaultStashers();
}
protected Stash CloneItem(Stash stash)
{
StashPlan itemPlan = this.GetPlanFromValue(stash.Plan);
if (this.Plan != itemPlan)
{
throw new Exception("Cache Item Plan does not match container's Plan.");
}
return(new Stash()
{
ExpirationDate = stash.ExpirationDate,
Hash = stash.Hash,
Key = stash.Key,
Serialized = stash.Serialized,
Size = stash.Size,
Value = stash.Value,
StoredType = stash.StoredType,
StashPlan = itemPlan, // GetPlanFromValue(stash.Plan)
});
}
public Stasher MakeStasher(string purpose, StashPlan plan = StashPlan.spSerialize)
{
return(new Stasher(purpose, plan, this.DB, this.DataProtector, this.Cache));
}