Module datarush.azure

Package com.pervasive.datarush.azure

Class AzureFileSystemProvider

java.lang.Object

com.pervasive.datarush.azure.AzureFileSystemProvider

All Implemented Interfaces:

FileSystemProvider

public class AzureFileSystemProvider
extends Object
implements FileSystemProvider

Provides services to access Azure Blob storage as a file system.

Constructor Summary

Constructors

Constructor	Description
AzureFileSystemProvider()	Create an instance of the Azure filesystem provider.

Method Summary

Modifier and Type	Method	Description
FileConfiguration	getConfigurationTemplate()	Returns a non-populated configuration object to server as a template that the user must fill-in.
Map<String,FileConfiguration>	getDefaultConfiguration()	Gets default configuration for the schemes handled by the provider.
FileSystem	getFileSystem(FileClient client, FileConfiguration configuration, Path path)	Gets the file system identified by the path.
Path	getFileSystemPath(Path path)	Returns the filesystem root path associated with the given path.
static AzureFileSystemProvider	getInstance()
Path	getPath(String path)	Gets the path identified by the given string.
boolean	isPathSupported(String path)	Indicates whether the given scheme is handled by the provider.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AzureFileSystemProvider

public AzureFileSystemProvider()

Create an instance of the Azure filesystem provider. The system property named azure.properties is used to find the credentials needed to access Azure.

Method Detail

getInstance

public static AzureFileSystemProvider getInstance()

isPathSupported

public boolean isPathSupported(String path)

Description copied from interface: FileSystemProvider

Indicates whether the given scheme is handled by the provider.

Specified by:

isPathSupported in interface FileSystemProvider

Parameters:

path - an identifier for a path scheme

Returns:

true if this provider handles paths using the scheme, false otherwise.

getFileSystem

public FileSystem getFileSystem(FileClient client,
                                FileConfiguration configuration,
                                Path path)

Description copied from interface: FileSystemProvider

Gets the file system identified by the path. The path identifies a file on the file system; the file's file system is returned. This is equivalent to calling getPath(path).getFileSystem(), but may be faster.

Specified by:

getFileSystem in interface FileSystemProvider

Parameters:

client - a file client. most implementations will ignore this parameter. "meta-filesystems" ( those than can span filesystems ) may need the file client.

configuration - the configuration for this filesystem

path - a path identifying a file on the file system

Returns:

the requested file system object

getFileSystemPath

public Path getFileSystemPath(Path path)

Description copied from interface: FileSystemProvider

Returns the filesystem root path associated with the given path.

Specified by:

getFileSystemPath in interface FileSystemProvider

Parameters:

path - the path

Returns:

the root path

getPath

public Path getPath(String path)

Description copied from interface: FileSystemProvider

Gets the path identified by the given string. The resulting path represents a location in an abstract file system. Use the methods in FileClient to perform operations on the files and directories represented by paths.

Specified by:

getPath in interface FileSystemProvider

Parameters:

path - the path name to resolve into a path object

Returns:

the requested path object

getDefaultConfiguration

public Map<String,FileConfiguration> getDefaultConfiguration()

Description copied from interface: FileSystemProvider

Gets default configuration for the schemes handled by the provider. Default configuration is inherited from the execution environment.

A provider should return a map with entries only for schemes having default configuration; if no schemes do, an empty map should be returned.

Specified by:

getDefaultConfiguration in interface FileSystemProvider

Returns:

a mapping of schemes to default configuration

getConfigurationTemplate

public FileConfiguration getConfigurationTemplate()

Description copied from interface: FileSystemProvider

Returns a non-populated configuration object to server as a template that the user must fill-in.

Specified by:

getConfigurationTemplate in interface FileSystemProvider

Returns:

a configuration template