C# Class Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.Implementation.WebAppPerformanceCollector.CacheHelper

Class to contain the one cache for all Gauges.

Inheritance: ICachedEnvironmentVariableAccess

Datei anzeigen Open project: Microsoft/ApplicationInsights-dotnet-server

Public Methods

Method	Description
GetCounterValue ( string name, AzureWebApEnvironmentVariables environmentVariable ) : long	Checks if a key is in the cache and if not Retrieves raw counter data from Environment Variables Cleans raw JSON for only requested counter Creates value for caching.
GetFromCache ( string cacheKey ) : object	Retrieves requested item from cache.
IsInCache ( string cacheKey ) : bool	Method to check if a key is in a cache.
PerformanceCounterValue ( string performanceCounterName, string json ) : long	Search for the value of a given performance counter in a JSON.
SaveToCache ( string cacheKey, object toCache, DateTimeOffset absoluteExpiration ) : void	Method saves an object to the cache.

Private Methods

Method	Description
CacheHelper ( ) : System	Prevents a default instance of the CacheHelper class from being created.

Method Details

GetCounterValue() public method

Checks if a key is in the cache and if not Retrieves raw counter data from Environment Variables Cleans raw JSON for only requested counter Creates value for caching.

public GetCounterValue ( string name, AzureWebApEnvironmentVariables environmentVariable ) : long
name	string	Cache key and name of the counter to be selected from JSON.
environmentVariable	AzureWebApEnvironmentVariables	Identifier of the environment variable.
return	long

GetFromCache() public method

Retrieves requested item from cache.

public GetFromCache ( string cacheKey ) : object
cacheKey	string	Key for the retrieved object.
return	object

IsInCache() public method

Method to check if a key is in a cache.

public IsInCache ( string cacheKey ) : bool
cacheKey	string	Key to search for in cache.
return	bool

PerformanceCounterValue() public method

Search for the value of a given performance counter in a JSON.

public PerformanceCounterValue ( string performanceCounterName, string json ) : long
performanceCounterName	string	The name of the performance counter.
json	string	String containing the JSON.
return	long

SaveToCache() public method

Method saves an object to the cache.

public SaveToCache ( string cacheKey, object toCache, DateTimeOffset absoluteExpiration ) : void
cacheKey	string	String name of the counter value to be saved to cache.
toCache	object	Object to be cached.
absoluteExpiration	DateTimeOffset	DateTimeOffset until item expires from cache.
return	void