org.jclouds.blobstore

Interface LocalStorageStrategy

All Known Implementing Classes:

FilesystemStorageStrategyImpl, TransientStorageStrategy

public interface LocalStorageStrategy

Strategy for local operations related to container and blob

Author:

Alfredo "Rainbowbreeze" Morresi

Method Summary

Methods

Modifier and Type	Method and Description
boolean	blobExists(String container, String key) Return true if a blob named by key exists
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
boolean	createContainerInLocation(String container, Location location) Creates a new container
void	deleteContainer(String container) Deletes a container and all its content
Iterable<String>	getAllContainerNames() Return an iterator that reports all the containers under base path
Blob	getBlob(String containerName, String blobName) Load the blob with the given key belonging to the container with the given name.
Iterable<String>	getBlobKeysInsideContainer(String container) Returns all the blobs key inside a container
Location	getLocation(String containerName)
String	getSeparator()
String	putBlob(String containerName, Blob blob) Write a Blob into a file
void	removeBlob(String container, String key) Remove blob named by the given key

Method Detail

containerExists

boolean containerExists(String container)

Checks if a container exists

Parameters:

container -

Returns:

getAllContainerNames

Iterable<String> getAllContainerNames()

Return an iterator that reports all the containers under base path

Returns:

createContainerInLocation

boolean createContainerInLocation(String container,
                                Location location)

Creates a new container

Parameters:

container -

Returns:

deleteContainer

void deleteContainer(String container)

Deletes a container and all its content

Parameters:

container -

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

blobExists

boolean blobExists(String container,
                 String key)

Return true if a blob named by key exists

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

getBlob

Blob getBlob(String containerName,
           String blobName)

Load the blob with the given key belonging to the container with the given name. There must exist a resource on the file system whose complete name is given concatenating the container name and the key

Parameters:

container - it's the name of the container the blob belongs to

key - it's the key of the blob

Returns:

the blob belonging to the given container with the given key

putBlob

String putBlob(String containerName,
             Blob blob)
               throws IOException

Write a Blob into a file

Parameters:

container -

blob -

Returns:

etag of blob

Throws:

IOException

removeBlob

void removeBlob(String container,
              String key)

Remove blob named by the given key

Parameters:

container -

key -

getLocation

Location getLocation(String containerName)

Parameters:

containerName - name of container

Returns:

Location of container or null

getSeparator

String getSeparator()

Returns:

path separator, either / or \