public CacheService AddCache <TCache>() where TCache : ICache
{
TCache cacheInstance = (TCache)Activator.CreateInstance(typeof(TCache));
caches.Add(cacheInstance);
return(this);
}
private Tenant GetTenantBasedOnUrl(string urlHost)
{
if (String.IsNullOrEmpty(urlHost))
{
throw new ApplicationException("urlHost must be specified");
}
Tenant tenant;
string cacheName = "all-tentnts-cache-name";
int cacheTimeOutSeconds = 30;
List <Tenant> tenants =
new TCache <List <Tenant> >().Get(
cacheName, cacheTimeOutSeconds,
() =>
{
List <Tenant> tenants1;
using (var context = new MultiTenantContext())
{
tenants1 = context.Tenant.ToList();
}
return(tenants1);
});
tenant = tenants.FirstOrDefault(a => a.DomainName.ToLower().Equals(urlHost)) ??
tenants.FirstOrDefault(a => a.Default);
if (tenant == null)
{
throw new ApplicationException("tenant not found based on URL, no default found");
}
return(tenant);
}
public static TCache Create <TCache>()
where TCache : ICache, new()
{
var result = new TCache();
cacheList.Add(result);
return(result);
}
internal TCache GetValuesCache <TCache>() where TCache : ITempoMapValuesCache, new()
{
var result = _valuesCaches.OfType <TCache>().FirstOrDefault();
if (result == null)
{
_valuesCaches.Add(result = new TCache());
result.Invalidate(this);
}
return(result);
}
public ActionResult Index()
{
var speakersAll =
new TCache <List <Speaker> >().
Get("s-cache", 20,
() =>
{
List <Speaker> speakersAll1 = _context.
Speakers.
Include(a => a.Sessions.Select(b => b.Tenant)).
ToList();
return(speakersAll1);
});
var speakers = new List <Speaker>();
// ReSharper disable once LoopCanBeConvertedToQuery
foreach (var speaker in speakersAll)
{
if (speaker.Sessions != null)
{
var speakerInTenant =
speaker.Sessions.
Any(a => a.Tenant.Name == Tenant.Name);
if (speakerInTenant)
{
speakers.Add(new Speaker
{
FirstName = speaker.FirstName,
LastName = speaker.LastName,
Id = speaker.Id,
PictureId = speaker.PictureId,
Bio = speaker.Bio,
AllowHtml = speaker.AllowHtml,
WebSite = speaker.WebSite,
ImageUrl =
$"/Content/Images/Speakers/Speaker-{speaker.PictureId}-75.jpg",
Sessions =
speaker.Sessions.
Where(a => a.Tenant.Name == Tenant.Name).
OrderBy(a => a.Title).ToList()
});
}
}
else
{
}
}
return(View("Index", "_Layout", speakers));
}
public async Task <ActionResult> Index()
{
Task <List <Speaker> > speakersAll =
new TCache <Task <List <Speaker> > >().
Get("s-cache", 20,
() =>
{
var speakersAll1 = context.Speakers.ToListAsync();
return(speakersAll1);
});
var speakers = new List <Speaker>();
speakers = new List <Speaker>();
foreach (var speaker in await speakersAll)
// The "await" needs to be added where the function would be calling the thing containted within the Task<>.
// In this case, our foreach is really wanting a List, not a Task. Our speakersAll is really a Task<List> without the await.
{
bool speakerInTenant =
speaker.Sessions.
Any(a => a.Tenant.Name == Tenant.Name);
if (speakerInTenant)
{
speakers.Add(new Speaker
{
FirstName = speaker.FirstName,
LastName = speaker.LastName,
Id = speaker.Id,
PictureId = speaker.Id,
Bio = speaker.Bio,
AllowHtml = speaker.AllowHtml,
WebSite = speaker.WebSite,
ImageUrl =
$"/Content/Images/Speakers/Speaker-{speaker.PictureId}-75.jpg",
Sessions =
speaker.Sessions.
Where(a => a.Tenant.Name == Tenant.Name).
OrderBy(a => a.Title).ToList()
});
}
}
return(View("Index", "_Layout", speakers));
}
ConcurrentDictionary <string, Dict> GetVectDict(LangLabel lang)
{
lock (VectCacheLock)
{
if (_vectCache == null)
{
_vectCache = new TCache();
}
if (_vectCache.ContainsKey(lang))
{
if (_vectCache[lang].TryGetTarget(out ConcurrentDictionary <string, Dict> dict))
{
return(dict);
}
}
var new_dict = new ConcurrentDictionary <string, Dict>();
_vectCache[lang] = new WeakReference <ConcurrentDictionary <string, Dict> >(new_dict);
return(new_dict);
}
}
public async Task <ActionResult> Index()
{
var speakers = new List <Speaker>();
//var speakersAll = await context.Speakers.ToListAsync();
Task <List <Speaker> > speakersAll = new TCache <Task <List <Speaker> > >().Get("s-cache", 20, () =>
{
var speakersAll1 = context.Speakers.ToListAsync();
return(speakersAll1);
});
foreach (var speaker in await speakersAll)
{
bool speakerInTenant = speaker.Sessions.Any(a => a.Tenant.Name == Tenant.Name);
if (speakerInTenant)
{
speakers.Add(new Speaker
{
FirstName = speaker.FirstName,
LastName = speaker.LastName,
Id = speaker.Id,
Bio = speaker.Bio,
Website = speaker.Website,
AllowHtml = speaker.AllowHtml,
PictureId = speaker.PictureId,
ImageUrl = $"/Content/Images/Speakers/Speaker-{speaker.PictureId}-75.jpg",
Sessions =
speaker.Sessions
.Where(a => a.Tenant.Name == Tenant.Name)
.OrderBy(a => a.Title).ToList()
});
}
}
return(View("Index", "_Layout", speakers));
}
public static object GetLock(string key, TimeSpan refreshInterval, TimeSpan slidingExpiration, bool persistToFile, CacheItemPriority priority, TCache.CacheLoaderDelegate cacheLoader)
{
lock (_ReadLockbox) // could use Instance.SyncRoot for all access
{
CacheEntry entry;
if (ContainsCacheEntry(key))
{
entry = Instance[key];
entry.LastUse = DateTime.Now;
}
else
{
// escalate to a writer lock for this operation
lock (_WriteLockbox) // could use Instance.SyncRoot for all access
{
entry = new CacheEntry();
entry.CacheLoader = cacheLoader;
entry.RefreshInterval = refreshInterval;
entry.SlidingExpiration = slidingExpiration;
entry.CacheItemPriority = priority;
entry.LastUse = DateTime.Now;
entry.PersistToFile = persistToFile;
if (persistToFile)
{
string filename = key;
foreach (char c in Path.GetInvalidFileNameChars())
{
filename = filename.Replace( c.ToString(), "^_^" );
}
filename += ".bin";
if (filename.Length > 255) throw new ApplicationException("Can't use persist to key name is greater than 255.");
string basePath = null;
System.Web.HttpContext context = System.Web.HttpContext.Current;
if (context == null)
basePath = AppDomain.CurrentDomain.BaseDirectory;
else
basePath = context.Server.MapPath("~/");
basePath = Path.Combine(basePath, "LocalCache");
if (Directory.Exists(basePath) == false) Directory.CreateDirectory(basePath);
entry.PersistedFilename = Path.Combine(basePath, filename);
}
Instance.Add(key, entry);
}
}
return entry.Locker;
}
}
// GET: rest/Speaker/extjswrapper or rest/Speaker
public HttpResponseMessage Get(bool extJsWrapper = false)
{
var speakersAll =
new TCache <List <Speaker> >().
Get("s-cache", 20,
() =>
{
var speakersAll1 =
_context.Speakers.
Include(a => a.Sessions.Select(b => b.Tenant)).
ToList();
return(speakersAll1);
});
//var badCnt = TestForBad(speakersAll);
var speakers = new List <Speaker>();
// ReSharper disable once LoopCanBeConvertedToQuery
foreach (var speaker in speakersAll)
{
var speakerInTenant =
speaker.Sessions.
Any(a => a.Tenant.Name == Tenant.Name);
if (speakerInTenant)
{
speakers.Add(new Speaker
{
FirstName = speaker.FirstName,
LastName = speaker.LastName,
//Id = speaker.Id,
Id = speaker.PictureId,
PictureId = speaker.PictureId,
Bio = speaker.Bio,
AllowHtml = speaker.AllowHtml,
WebSite = speaker.WebSite,
ImageUrl =
$"/Content/Images/Speakers/Speaker-{speaker.PictureId}-75.jpg",
Sessions =
speaker.Sessions.
Where(a => a.Tenant.Name == Tenant.Name).
OrderBy(a => a.Title).ToList()
});
}
}
var speakers2 = speakers.Select(speaker => new Speaker
{
Id = speaker.Id,
FirstName = speaker.FirstName,
LastName = speaker.LastName,
WebSite = speaker.WebSite,
ImageUrl = "",
Bio = speaker.Bio,
AllowHtml = speaker.AllowHtml,
Sessions = speaker.Sessions.Select(session => new Session()
{
Id = session.Id,
Title = session.Title,
//SessionUrl = "",
DescriptionShort = session.DescriptionShort,
Description = session.Description
//TenantName = session.Tenant.Name
}).ToList()
}).ToList();
if (extJsWrapper)
{
return(Request.CreateResponse(HttpStatusCode.OK,
new
{
data = speakers2,
total = speakers2.ToList().Count,
success = true
}));
}
else
{
return(Request.CreateResponse(HttpStatusCode.OK,
speakers2));
}
}
private static void Test()
{
//create instance
TCache cache = new TCache("c001"); //or cache = TCache.Nodes("c001");
//add & get cache
cache["item01"] = "Hello world";
string v1 = (string)cache["item01"];
Console.WriteLine(v1);
cache["item02"] = "abc";
cache["item03"] = DateTime.Now;
cache["item04"] = 3.14159;
Console.WriteLine(cache["item02"]);
Console.WriteLine(cache["item03"]);
Console.WriteLine(cache["item04"]);
//add cache items with values
cache.Add("item10", "Foo");
cache.Add("item11", "Bar", DateTime.Now); //specify item's time property
cache.Add("item13", "Test text", TCache.NoItemTime);
string v2 = (string)cache.Get("item11");
string v3 = (string)cache.Get("item11", DateTime.Now.AddSeconds(-3)); //check the item time if modified since the specify time
try
{
//the follow line will raise CacheItemNotModifyException
string v4 = (string)cache.Get("item11", DateTime.Now.AddSeconds(3));
Console.WriteLine("ERROR");
}
catch (CacheItemNotModifiedException ex)
{
Console.WriteLine("test specify time... PASS, actually time:{0}", ex.LastModifyTime);
}
try
{
//the follow line will raise CacheItemNotFoundException
object v5 = cache.Get("item999");
Console.WriteLine("ERROR");
}
catch (CacheItemNotFoundException)
{
Console.WriteLine("test specify key that does not exis ... PASS");
}
//get cache item detail infomation
TCacheItem item = cache.GetItem("item11");
Console.WriteLine("Key:{0} value:{1} item time:{2}",
item.Key, item.Value, item.ItemTime);
//multi get
TCacheItem[] items = cache.MultiGet(new string[] { "item10", "item11", "item12", "item13" });
foreach (TCacheItem ci in items)
{
Console.WriteLine("Key:{0} value:{1}", ci.Key, ci.Value, ci.ItemTime);
}
//remove
cache.Remove("item11");
try
{
//the follow line will raise CacheItemNotFoundException
string v6 = (string)cache.Get("item11");
Console.WriteLine("ERROR");
}
catch (CacheItemNotFoundException)
{
Console.WriteLine("test remove item... PASS");
}
//---------------- Non-persistance test ------------------
TCacheNP.Add("item10", "Foo");
TCacheNP.Add("item11", "Bar");
TCacheNP.Add("item12", "This will expired in 2 seconds", new TimeSpan(0, 0, 2));
TCacheNP.Add("item13", 123456);
System.Threading.Thread.Sleep(3000);
string np1 = (string)TCacheNP.Get("item10");
string np2 = (string)TCacheNP.Get("item11");
string np3 = (string)TCacheNP.Get("item12"); //this should be NULL
int np4 = (int)TCacheNP.Get("item13");
if (np3 == null)
{
Console.WriteLine("non-persistance expired ok");
}
//multi get
TCacheItem[] npitems = TCacheNP.MultiGet(new string[] { "item10", "item11", "item12", "item13" });
foreach (TCacheItem ci in npitems)
{
Console.WriteLine("Key:{0} value:{1}", ci.Key, ci.Value);
}
//object test
Member m = new Member()
{
Id = 789, Name = "Jacky"
};
TCacheNP.Add("item20", m);
Member m2 = (Member)TCacheNP.Get("item20");
Console.WriteLine("Object test ok, id:{0} name:{1}", m2.Id, m2.Name);
Console.WriteLine("DEMO END");
Console.ReadLine();
}
private static void Test()
{
//create instance
TCache cache = new TCache("tcd001"); //or cache = TCache.Nodes("c001");
//add & get cache
cache["item01"] = "Hello world";
string v1 = (string)cache["item01"];
Console.WriteLine(v1);
cache["item02"] = "abc";
cache["item03"] = DateTime.Now;
cache["item04"] = 3.14159;
Console.WriteLine(cache["item02"]);
Console.WriteLine(cache["item03"]);
Console.WriteLine(cache["item04"]);
//add cache items with values
cache.Add("item10", "Foo");
cache.Add("item11", "Bar", DateTime.Now); //specify item's time property
cache.Add("item13", "Test text", TCache.NoItemTime);
string v2 = (string)cache.Get("item11");
string v3 = (string)cache.Get("item11", DateTime.Now.AddSeconds(-3)); //check the item time if modified since the specify time
try
{
//the follow line will raise CacheItemNotModifyException
string v4 = (string)cache.Get("item11", DateTime.Now.AddSeconds(3));
Console.WriteLine("ERROR");
}
catch (CacheItemNotModifiedException ex)
{
Console.WriteLine("test specify time... PASS, actually time:{0}", ex.LastModifyTime);
}
try
{
//the follow line will raise CacheItemNotFoundException
object v5 = cache.Get("item999");
Console.WriteLine("ERROR");
}
catch (CacheItemNotFoundException)
{
Console.WriteLine("test specify key that does not exis ... PASS");
}
//get cache item detail infomation
TCacheItem item = cache.GetItem("item11");
Console.WriteLine("Key:{0} value:{1} item time:{2}",
item.Key, item.Value, item.ItemTime);
//multi get
TCacheItem[] items = cache.MultiGet(new string[] { "item10", "item11", "item12", "item13" });
foreach (TCacheItem ci in items)
{
Console.WriteLine("Key:{0} value:{1}", ci.Key, ci.Value, ci.ItemTime);
}
//remove
cache.Remove("item11");
try
{
//the follow line will raise CacheItemNotFoundException
string v6 = (string)cache.Get("item11");
Console.WriteLine("ERROR");
}
catch (CacheItemNotFoundException)
{
Console.WriteLine("test remove item... PASS");
}
Console.WriteLine("DEMO END");
Console.ReadLine();
}
