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Class HttpContextRequestAppCache

Implements a IAppCache on top of Microsoft.AspNetCore.Http.IHttpContextAccessor

Inheritance
System.Object
FastDictionaryAppCacheBase
Namespace: Umbraco.Cms.Core.Cache
Assembly: Umbraco.Web.Common.dll
Syntax
public class HttpContextRequestAppCache : FastDictionaryAppCacheBase, IRequestCache, IAppCache
Remarks

The HttpContext is not thread safe and no part of it is which means we need to include our own thread safety mechanisms. This relies on notifications: UmbracoRequestBeginNotification and UmbracoRequestEndNotification in order to facilitate the correct locking and releasing allocations.

Constructors

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HttpContextRequestAppCache(IHttpContextAccessor)

Initializes a new instance of the HttpContextRequestAppCache class with a context, for unit tests!

Declaration
public HttpContextRequestAppCache(IHttpContextAccessor httpContextAccessor)
Parameters
Type Name Description
Microsoft.AspNetCore.Http.IHttpContextAccessor httpContextAccessor

Properties

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IsAvailable

Declaration
public bool IsAvailable { get; }
Property Value
Type Description
System.Boolean

Methods

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EnterReadLock()

Declaration
protected override void EnterReadLock()
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EnterWriteLock()

Declaration
protected override void EnterWriteLock()
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ExitReadLock()

Declaration
protected override void ExitReadLock()
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ExitWriteLock()

Declaration
protected override void ExitWriteLock()
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Get(String, Func<Object>)

Declaration
public override object Get(string key, Func<object> factory)
Parameters
Type Name Description
System.String key
Func<System.Object> factory
Returns
Type Description
System.Object
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GetDictionaryEntries()

Declaration
protected override IEnumerable<KeyValuePair<object, object>> GetDictionaryEntries()
Returns
Type Description
System.Collections.IEnumerable<KeyValuePair<System.Object, System.Object>>
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GetEntry(String)

Declaration
protected override object GetEntry(string key)
Parameters
Type Name Description
System.String key
Returns
Type Description
System.Object
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GetEnumerator()

Declaration
public IEnumerator<KeyValuePair<string, object>> GetEnumerator()
Returns
Type Description
System.Collections.IEnumerator<KeyValuePair<System.String, System.Object>>
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Remove(String)

Declaration
public bool Remove(string key)
Parameters
Type Name Description
System.String key
Returns
Type Description
System.Boolean
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RemoveEntry(String)

Declaration
protected override void RemoveEntry(string key)
Parameters
Type Name Description
System.String key
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Set(String, Object)

Declaration
public bool Set(string key, object value)
Parameters
Type Name Description
System.String key
System.Object value
Returns
Type Description
System.Boolean