Class VFSManager

VFSManager (Virtual File System Manager) class. Used to manage files and directories.

Inheritance

System.Object

VFSManager

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Cosmos.System.FileSystem.VFS

Assembly: Cosmos.System2.dll

Syntax

public static class VFSManager

Methods

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CreateDirectory(String)

Create directory.

Declaration

public static DirectoryEntry CreateDirectory(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the directory.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if aPath is null / empty / invalid. memory error.
System.ArgumentOutOfRangeException	Thrown on memory error / unknown directory entry type.
System.OverflowException	Thrown when data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when data size invalid. invalid directory entry type. the entry at aPath is not a directory. memory error.
System.ArgumentException	Thrown if aPath length is zero. Thrown if aPath is invalid. memory error.
System.RankException	Thrown on fatal error.
System.ArrayTypeMismatchException	Thrown on fatal error.
System.InvalidCastException	Thrown on memory error.
System.IO.PathTooLongException	Thrown when The aPath is longer than the system defined maximum length.

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CreateFile(String)

Create a file.

Declaration

public static DirectoryEntry CreateFile(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the file.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if aPath is null.
System.ArgumentException	Thrown if aPath is empty or contains invalid chars.
System.Exception	Thrown when the entry at aPath is not a file. Thrown when the parent directory of aPath is not a directory.
System.IO.PathTooLongException	Thrown when aPath is longer than the system defined max lenght.

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DeleteDirectory(String, Boolean)

Delete directory.

Declaration

public static void DeleteDirectory(string aPath, bool recursive)

Parameters

Type	Name	Description
System.String	aPath	A path to the directory.
System.Boolean	recursive	Recursive delete (not empty directory).

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if VFSManager is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown if VFSManager is null. Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.
System.IO.IOException	Thrown if specified path isn't a directory / trying to delete not empty directory not recursivly / directory contains a corrupted file.
System.UnauthorizedAccessException	Thrown when trying to delete unknown type entry.

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DeleteFile(String)

Delete a file.

Declaration

public static void DeleteFile(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the file.

Exceptions

Type	Condition
System.Exception	Thrown if VFS manager is null. The entry at aPath is not a file.
System.UnauthorizedAccessException	Thrown when the specified path isn't a file

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DirectoryExists(DirectoryEntry)

Check if directory exists.

Declaration

public static bool DirectoryExists(DirectoryEntry aEntry)

Parameters

Type	Name	Description
DirectoryEntry	aEntry	A entry of the directory.

Returns

Type	Description
System.Boolean	bool value.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown when aEntry is null.

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DirectoryExists(String)

Check if directory exists.

Declaration

public static bool DirectoryExists(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the directory.

Returns

Type	Description
System.Boolean	bool value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aPath is null or empty.

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FileExists(DirectoryEntry)

Check if file exists.

Declaration

public static bool FileExists(DirectoryEntry aEntry)

Parameters

Type	Name	Description
DirectoryEntry	aEntry	A entry of the file.

Returns

Type	Description
System.Boolean	bool value.

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FileExists(String)

Check if file exists.

Declaration

public static bool FileExists(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the file.

Returns

Type	Description
System.Boolean	bool value.

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GetAltDirectorySeparatorChar()

Get alt. directory separator char.

Declaration

public static char GetAltDirectorySeparatorChar()

Returns

Type	Description
System.Char	char value.

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GetAvailableFreeSpace(String)

Get available free space.

Declaration

public static long GetAvailableFreeSpace(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetDirectory(String)

Get directory.

Declaration

public static DirectoryEntry GetDirectory(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the directory.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if VFSManager is null. Thrown if aPath is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.

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GetDirectoryListing(String)

Get directory listing.

Declaration

public static List<DirectoryEntry> GetDirectoryListing(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the entry.

Returns

Type	Description
System.Collections.Generic.List<DirectoryEntry>	DirectoryEntry list value.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if aPath is null or empty. Filesystem is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.

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GetDirectorySeparatorChar()

Get directory separator char.

Declaration

public static char GetDirectorySeparatorChar()

Returns

Type	Description
System.Char	char value.

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GetDisks()

Gets all of the disks

Declaration

public static List<Disk> GetDisks()

Returns

Type	Description
System.Collections.Generic.List<Disk>	All of the disks on the system

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GetFile(String)

Get file.

Declaration

public static DirectoryEntry GetFile(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the file.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null / empty / invalid. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if aPath is null or empty. Filesystem is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.

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GetFileAttributes(String)

Get file attributes.

Declaration

public static FileAttributes GetFileAttributes(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to the file

Returns

Type	Description
System.IO.FileAttributes	FileAttributes value.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Thrown when aFS root path is null or empty. Thrown on memory error. Fatal error.
System.ArgumentNullException	Thrown if VFSManager is null. Thrown when root directory is null. Thrown on memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Thrown on memory error.
System.OverflowException	Thrown when aPath is too deep. Thrown when data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when data size invalid. Thrown on invalid directory entry type. Thrown when aPath entry not found. Thrown when unable to determine filesystem for path: + aPath. Thrown aPath is neither a file neither a directory.

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GetFileStream(String)

Get file stream.

Declaration

public static Stream GetFileStream(string aPathname)

Parameters

Type	Name	Description
System.String	aPathname	A path to the file.

Returns

Type	Description
System.IO.Stream	Stream value.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPathname is null / empty / invalid. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if aPathname is null or empty. Filesystem is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPathname is too deep. Data lenght is greater then Int32.MaxValue. The number of clusters in the FAT entry is greater than Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPathname. data size invalid. invalid directory entry type. path not found. FAT table not found. memory error.

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GetFileSystemLabel(String)

Get file system label.

Declaration

public static string GetFileSystemLabel(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.

Returns

Type	Description
System.String	string value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetFileSystemType(String)

Get file system type.

Declaration

public static string GetFileSystemType(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.

Returns

Type	Description
System.String	string value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetFullPath(DirectoryEntry)

Get full path to the entry.

Declaration

public static string GetFullPath(DirectoryEntry aEntry)

Parameters

Type	Name	Description
DirectoryEntry	aEntry	A entry.

Returns

Type	Description
System.String	string value.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown when aEntry is null.

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GetInvalidFileNameChars()

Get invalid filename chars.

Declaration

public static char[] GetInvalidFileNameChars()

Returns

Type	Description
System.Char[]	char array value.

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GetInvalidPathCharsWithAdditionalChecks()

Get invalid path chars with additional checks.

Declaration

public static char[] GetInvalidPathCharsWithAdditionalChecks()

Returns

Type	Description
System.Char[]	char array value.

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GetLogicalDrives()

Get logical drivers list.

Declaration

public static List<string> GetLogicalDrives()

Returns

Type	Description
System.Collections.Generic.List<System.String>	List of strings value.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if filesystem is null.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address.
System.ArgumentException	Thrown when root path is null or empty.

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GetMaxPath()

Get max path.

Declaration

public static int GetMaxPath()

Returns

Type	Description
System.Int32	int value.

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GetNextFilesystemLetter()

Gets the next file system letter. For internal cosmos use only.

Declaration

public static string GetNextFilesystemLetter()

Returns

Type	Description
System.String	Next file system letter

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GetParent(String)

Gets the parent directory entry from the path.

Declaration

public static DirectoryEntry GetParent(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path to the current directory entry.

Returns

Type	Description
DirectoryEntry	The parent directory entry.

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null / empty / invalid. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if VFSManager is null. Thrown if aPath is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error. Fatal error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.

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GetPathSeparator()

Get path separator char.

Declaration

public static char GetPathSeparator()

Returns

Type	Description
System.Char	char value.

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GetRealInvalidPathChars()

Get real invalid path chars.

Declaration

public static char[] GetRealInvalidPathChars()

Returns

Type	Description
System.Char[]	char array value.

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GetTotalFreeSpace(String)

Get total free space.

Declaration

public static long GetTotalFreeSpace(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetTotalSize(String)

Get total size in bytes.

Declaration

public static long GetTotalSize(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetTrimEndChars()

Get trim end chars.

Declaration

public static char[] GetTrimEndChars()

Returns

Type	Description
System.Char[]	char array value.

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GetVolume(String)

Get volume.

Declaration

public static DirectoryEntry GetVolume(string aVolume)

Parameters

Type	Name	Description
System.String	aVolume	The volume root path.

Returns

Type	Description
DirectoryEntry	A directory entry for the volume.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aVolume is null or empty.
System.Exception	Unable to determine filesystem for path: + aVolume
System.ArgumentNullException	Thrown if aVolume / filesystem is null.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address.

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GetVolumes()

Gets the volumes for all registered file systems.

Declaration

public static List<DirectoryEntry> GetVolumes()

Returns

Type	Description
System.Collections.Generic.List<DirectoryEntry>	A list of directory entries for all volumes.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if filesystem is null.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address.
System.ArgumentException	Thrown when root path is null or empty.

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GetVolumeSeparatorChar()

Get volume separator char.

Declaration

public static char GetVolumeSeparatorChar()

Returns

Type	Description
System.Char	char value.

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IsValidDriveId(String)

Check if drive id is valid.

Declaration

public static bool IsValidDriveId(string aPath)

Parameters

Type	Name	Description
System.String	aPath

Returns

Type	Description
System.Boolean	bool value.

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	Thrown if aPath length is smaller then 2, or greater than Int32.MaxValue.

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RegisterVFS(VFSBase, Boolean, Boolean)

Declaration

public static void RegisterVFS(VFSBase aVFS, bool aShowInfo = true, bool aAllowReinitialise = false)

Parameters

Type	Name	Description
VFSBase	aVFS	A VFS to register.
System.Boolean	aShowInfo
System.Boolean	aAllowReinitialise

Exceptions

Type	Condition
System.Exception	Thrown if VFS already registered / memory error.
System.IO.IOException	Thrown on I/O exception.
System.ArgumentNullException	Thrown on memory error.
System.OverflowException	Thrown on memory error.
System.ArgumentException	Thrown on memory error.
System.ArgumentOutOfRangeException	Thrown on memory error.
System.IO.PathTooLongException	Thrown on fatal error.
System.IO.FileNotFoundException	Thrown on memory error.
System.IO.DirectoryNotFoundException	Thrown on fatal error.

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SetFileAttributes(String, FileAttributes)

Sets the attributes for a File / Directory. Not implemented.

Declaration

public static void SetFileAttributes(string aPath, FileAttributes fileAttributes)

Parameters

Type	Name	Description
System.String	aPath	The path of the File / Directory.
System.IO.FileAttributes	fileAttributes	The attributes of the File / Directory.

Exceptions

Type	Condition
System.NotImplementedException	Thrown always

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SetFileSystemLabel(String, String)

Set file system type.

Declaration

public static void SetFileSystemLabel(string aDriveId, string aLabel)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.
System.String	aLabel	A label to be set.

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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SplitPath(String)

Split path.

Declaration

public static string[] SplitPath(string aPath)

Parameters

Type	Name	Description
System.String	aPath	A path to split.

Returns

Type	Description
System.String[]	string array.

Exceptions

Type	Condition
System.ArgumentException	Thrown on fatal error.

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ThrowIfNotRegistered()

Throws an Exception if VFS is not registered.

Declaration

public static void ThrowIfNotRegistered()