org.jclouds.filesystem.strategy
Interface FilesystemStorageStrategy

All Known Implementing Classes:

FilesystemStorageStrategyImpl

public interface FilesystemStorageStrategy

Strategy for filesystem operations related to container and blob

Author:

Alfredo "Rainbowbreeze" Morresi

Method Summary

boolean	blobExists(String container, String key)
void	clearContainer(String container) Empty the container of its content (files and subdirectories), but doesn't delete the container itself
void	clearContainer(String container, ListContainerOptions options) Like clearContainer(String) except you can use options to do things like recursive deletes, or clear at a different path than root.
boolean	containerExists(String container) Checks if a container exists
long	countBlobs(String container, ListContainerOptions options) Counts number of blobs inside a container
boolean	createContainer(String container) Creates a new container
void	createDirectory(String container, String directory) Creates a folder or a directory marker depending on the service
void	deleteContainer(String container) Deletes a container and all its content
void	deleteDirectory(String container, String directory) Deletes a folder or a directory marker depending on the service
boolean	directoryExists(String container, String directory) Determines if a directory exists
Iterable<String>	getAllContainerNames() Return an iterator that reports all the containers under base path
Iterable<String>	getBlobKeysInsideContainer(String container) Returns all the blobs key inside a container
File	getFileForBlobKey(String container, String key) Returns a File object that links to the blob
Blob	newBlob(String name) Creates a new blob
void	removeBlob(String container, String key)
void	writePayloadOnFile(String container, String blobKey, Payload payload) Write a Blob Payload into a file

Method Detail

createContainer

boolean createContainer(String container)

Creates a new container

Parameters:

container -

Returns:

deleteContainer

void deleteContainer(String container)

Deletes a container and all its content

Parameters:

container -

containerExists

boolean containerExists(String container)

Checks if a container exists

Parameters:

container -

Returns:

clearContainer

void clearContainer(String container)

Empty the container of its content (files and subdirectories), but doesn't delete the container itself

Parameters:

container -

clearContainer

void clearContainer(String container,
                    ListContainerOptions options)

Like clearContainer(String) except you can use options to do things like recursive deletes, or clear at a different path than root.

Parameters:

container - what to clear

options - recursion and path to clear

getAllContainerNames

Iterable<String> getAllContainerNames()

Return an iterator that reports all the containers under base path

Returns:

directoryExists

boolean directoryExists(String container,
                        String directory)

Determines if a directory exists

Parameters:

container - container where the directory resides

directory - full path to the directory

createDirectory

void createDirectory(String container,
                     String directory)

Creates a folder or a directory marker depending on the service

Parameters:

container - container to create the directory in

directory - full path to the directory

deleteDirectory

void deleteDirectory(String container,
                     String directory)

Deletes a folder or a directory marker depending on the service

Parameters:

container - container to delete the directory from

directory - full path to the directory to delete

newBlob

Blob newBlob(String name)

Creates a new blob

Parameters:

name -

Returns:

blobExists

boolean blobExists(String container,
                   String key)

Parameters:

container -

key -

Returns:

getBlobKeysInsideContainer

Iterable<String> getBlobKeysInsideContainer(String container)
                                            throws IOException

Returns all the blobs key inside a container

Parameters:

container -

Returns:

Throws:

IOException

countBlobs

long countBlobs(String container,
                ListContainerOptions options)

Counts number of blobs inside a container

Parameters:

container -

options -

Returns:

getFileForBlobKey

File getFileForBlobKey(String container,
                       String key)

Returns a File object that links to the blob

Parameters:

container -

key -

Returns:

removeBlob

void removeBlob(String container,
                String key)

Parameters:

container -

key -

writePayloadOnFile

void writePayloadOnFile(String container,
                        String blobKey,
                        Payload payload)
                        throws IOException

Write a Blob Payload into a file

Parameters:

fileName -

payload -

Throws:

IOException