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Class VirtualPathMappedProvider

A virtual path provider for mapping specific virtual paths to other locations. The mappings are configured in web.config.

Inheritance
System.Object
VirtualPathMappedProvider
Namespace: EPiServer.Web.Hosting
Assembly: EPiServer.Framework.dll
Version: 10.10.4
Syntax
public class VirtualPathMappedProvider : VirtualPathProvider

Constructors

VirtualPathMappedProvider(String, NameValueCollection)

Default constructor.

Declaration
public VirtualPathMappedProvider(string name, NameValueCollection configParameters)
Parameters
Type Name Description
System.String name

The name of the provider

System.Collections.Specialized.NameValueCollection configParameters

The config parameters for the provider

VirtualPathMappedProvider(String, NameValueCollection, IVirtualPathResolver)

Create an instance of VirtualPathMappedProvider

Declaration
public VirtualPathMappedProvider(string name, NameValueCollection configParameters, IVirtualPathResolver virtualPathResolver)
Parameters
Type Name Description
System.String name

The name of the provider

System.Collections.Specialized.NameValueCollection configParameters

The config parameters for the provider

IVirtualPathResolver virtualPathResolver

The virtualPathResolver

Properties

PathMappings

Adds Virtualmappings to dictionary

Declaration
public Dictionary<string, string> PathMappings { get; set; }
Property Value
Type Description
System.Collections.Generic.Dictionary<System.String, System.String>
Remarks

For testing purposes can it be set, otherwise during runtime it is read from config file.

Dictionary implements StringComparer.OrdinalIgnoreCase

Provider

Returns the VirtualPathProvider to use.

Declaration
public VirtualPathProvider Provider { get; set; }
Property Value
Type Description
System.Web.Hosting.VirtualPathProvider
Remarks

By default it returns GenericHostingEnvironment.Instance.VirtualPathProvider. For testing purpose it can be assigned.

WebConfigHash

Gets hashcode for web.config Creates hashcode from FileInfo object. (webConfig path, CreationTime, LastWriteTime, Length)

Declaration
public string WebConfigHash { get; set; }
Property Value
Type Description
System.String
Remarks

Can be set for test puropses.

Methods

DirectoryExists(String)

Checks if this VPP has knowlegde in existance of directory under virtualPath. If not passes the query to the next provider in chain (if any).

Declaration
public override bool DirectoryExists(string virtualDir)
Parameters
Type Name Description
System.String virtualDir

The virtual path to check existence for

Returns
Type Description
System.Boolean

true if the directory exists in the virtual file system; otherwise, false.

FileExists(String)

Checks if this VPP has knowlegde in existance of file under virtualPath. If not passes the query to the next provider in chain (if any).

Declaration
public override bool FileExists(string virtualPath)
Parameters
Type Name Description
System.String virtualPath
Returns
Type Description
System.Boolean

GetCacheDependency(String, IEnumerable, DateTime)

If the path is mapped it will add a cachedependency to the mapped file.

Declaration
public override CacheDependency GetCacheDependency(string virtualPath, IEnumerable virtualPathDependencies, DateTime utcStart)
Parameters
Type Name Description
System.String virtualPath
System.Collections.IEnumerable virtualPathDependencies
System.DateTime utcStart
Returns
Type Description
System.Web.Caching.CacheDependency

GetDirectory(String)

Gets the virtualPath directory. If it doesn't exists under this providers responibillity it transfers the request to the next provider in chain.

Declaration
public override VirtualDirectory GetDirectory(string virtualDir)
Parameters
Type Name Description
System.String virtualDir

The path to the virtual directory.

Returns
Type Description
System.Web.Hosting.VirtualDirectory

VirtualDirectory or null

GetFile(String)

Gets the virtualPath file. If it doesn't exists under this providers responibillity it transfers the request to the next provider in chain.

Declaration
public override VirtualFile GetFile(string virtualPath)
Parameters
Type Name Description
System.String virtualPath
Returns
Type Description
System.Web.Hosting.VirtualFile

VirtualFile or null.

GetFileHash(String, IEnumerable)

Adds web.config hash to virtualPath

Declaration
public override string GetFileHash(string virtualPath, IEnumerable virtualPathDependencies)
Parameters
Type Name Description
System.String virtualPath

Path to file

System.Collections.IEnumerable virtualPathDependencies

Path to dependencies to virtualPath file

Returns
Type Description
System.String

string

Remarks

Because we have configuration in web.config for VirtualPathMappings we need to know when web.config has changed and reload mappings. By default virtualprovider sets only dependencies to file and controls on pages we have mapping to, it doesnt recognize web.config as a dependecy Thats why we adding HashCode for webconfig with return

Examples

Web.config.

Extension Methods