org.jclouds.blobstore.internal

Class BaseBlobStore

java.lang.Object

org.jclouds.blobstore.internal.BaseBlobStore

All Implemented Interfaces:

BlobStore

Direct Known Subclasses:

AtmosBlobStore, AzureBlobStore, S3BlobStore, SwiftBlobStore

public abstract class BaseBlobStore
extends Object
implements BlobStore

Author:

Adrian Cole

Field Summary

Fields

Modifier and Type	Field and Description
protected BlobUtils	blobUtils
protected BlobStoreContext	context
protected com.google.common.base.Supplier<Location>	defaultLocation
protected com.google.common.base.Supplier<Set<? extends Location>>	locations

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseBlobStore(BlobStoreContext context, BlobUtils blobUtils, com.google.common.base.Supplier<Location> defaultLocation, com.google.common.base.Supplier<Set<? extends Location>> locations)

Method Summary

Methods

Modifier and Type	Method and Description
BlobBuilder	blobBuilder(String name) invokes BlobUtilsImpl.blobBuilder()
protected void	clearAndDeleteContainer(String container)
void	clearContainer(String containerName) This implementation invokes clearContainer(java.lang.String) with the ListContainerOptions.recursive option.
void	clearContainer(String containerName, ListContainerOptions options) This implementation invokes BlobUtilsImpl.clearContainer(java.lang.String, org.jclouds.blobstore.options.ListContainerOptions)
long	countBlobs(String container) This implementation invokes countBlobs(java.lang.String) with the ListContainerOptions.recursive option.
long	countBlobs(String containerName, ListContainerOptions options) This implementation invokes BlobUtilsImpl.countBlobs(java.lang.String, org.jclouds.blobstore.options.ListContainerOptions)
void	createDirectory(String containerName, String directory) This implementation invokes BlobUtilsImpl.createDirectory(java.lang.String, java.lang.String)
protected abstract boolean	deleteAndVerifyContainerGone(String container)
void	deleteContainer(String container) This implementation invokes #deleteAndEnsurePathGone
void	deleteDirectory(String containerName, String directory) This implementation invokes BlobUtilsImpl.deleteDirectory(java.lang.String, java.lang.String).
boolean	directoryExists(String containerName, String directory) This implementation invokes BlobUtilsImpl.directoryExists(java.lang.String, java.lang.String)
Blob	getBlob(String container, String key) This implementation invokes BlobStore.getBlob(String,String,org.jclouds.blobstore.options.GetOptions)
BlobStoreContext	getContext()
PageSet<? extends StorageMetadata>	list(String container) This implementation invokes BlobStore.list(String,org.jclouds.blobstore.options.ListContainerOptions)
Set<? extends Location>	listAssignableLocations() The get locations command returns all the valid locations for containers.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jclouds.blobstore.BlobStore

blobExists, blobMetadata, containerExists, createContainerInLocation, createContainerInLocation, getBlob, list, list, putBlob, putBlob, removeBlob

Field Detail

context

protected final BlobStoreContext context

blobUtils

protected final BlobUtils blobUtils

defaultLocation

protected final com.google.common.base.Supplier<Location> defaultLocation

locations

protected final com.google.common.base.Supplier<Set<? extends Location>> locations

Constructor Detail

BaseBlobStore

@Inject
protected BaseBlobStore(BlobStoreContext context,
                    BlobUtils blobUtils,
                    com.google.common.base.Supplier<Location> defaultLocation,
                    com.google.common.base.Supplier<Set<? extends Location>> locations)

Method Detail

getContext

public BlobStoreContext getContext()

Specified by:

getContext in interface BlobStore

Returns:

a reference to the context that created this BlobStore.

blobBuilder

public BlobBuilder blobBuilder(String name)

invokes BlobUtilsImpl.blobBuilder()

Specified by:

blobBuilder in interface BlobStore

Returns:

builder for creating new Blobs

list

public PageSet<? extends StorageMetadata> list(String container)

This implementation invokes BlobStore.list(String,org.jclouds.blobstore.options.ListContainerOptions)

Specified by:

list in interface BlobStore

Parameters:

container - container name

Returns:

a list that may be incomplete, depending on whether PageSet#getNextMarker is set

directoryExists

public boolean directoryExists(String containerName,
                      String directory)

This implementation invokes BlobUtilsImpl.directoryExists(java.lang.String, java.lang.String)

Specified by:

directoryExists in interface BlobStore

Parameters:

container - container name

directory - virtual path

createDirectory

public void createDirectory(String containerName,
                   String directory)

This implementation invokes BlobUtilsImpl.createDirectory(java.lang.String, java.lang.String)

Specified by:

createDirectory in interface BlobStore

Parameters:

container - container name

directory - virtual path

countBlobs

public long countBlobs(String container)

This implementation invokes countBlobs(java.lang.String) with the ListContainerOptions.recursive option.

Specified by:

countBlobs in interface BlobStore

Parameters:

container - container name

Returns:

a count of all blobs in the container, excluding directory markers

countBlobs

public long countBlobs(String containerName,
              ListContainerOptions options)

This implementation invokes BlobUtilsImpl.countBlobs(java.lang.String, org.jclouds.blobstore.options.ListContainerOptions)

Specified by:

countBlobs in interface BlobStore

Parameters:

container - container name

Returns:

a count of all blobs that are in a listing constrained by the options specified, excluding directory markers

clearContainer

public void clearContainer(String containerName)

This implementation invokes clearContainer(java.lang.String) with the ListContainerOptions.recursive option.

Specified by:

clearContainer in interface BlobStore

Parameters:

container - container name

clearContainer

public void clearContainer(String containerName,
                  ListContainerOptions options)

This implementation invokes BlobUtilsImpl.clearContainer(java.lang.String, org.jclouds.blobstore.options.ListContainerOptions)

Specified by:

clearContainer in interface BlobStore

Parameters:

container - container name

deleteDirectory

public void deleteDirectory(String containerName,
                   String directory)

This implementation invokes BlobUtilsImpl.deleteDirectory(java.lang.String, java.lang.String).

Specified by:

deleteDirectory in interface BlobStore

Parameters:

container - container name

getBlob

public Blob getBlob(String container,
           String key)

This implementation invokes BlobStore.getBlob(String,String,org.jclouds.blobstore.options.GetOptions)

Specified by:

getBlob in interface BlobStore

Parameters:

container - container name

key - blob key

Returns:

the blob you intended to receive or null, if it doesn't exist.

deleteContainer

public void deleteContainer(String container)

This implementation invokes #deleteAndEnsurePathGone

Specified by:

deleteContainer in interface BlobStore

Parameters:

container - bucket name

clearAndDeleteContainer

protected void clearAndDeleteContainer(String container)

listAssignableLocations

public Set<? extends Location> listAssignableLocations()

Description copied from interface: BlobStore

The get locations command returns all the valid locations for containers. A location has a scope, which is typically region or zone. A region is a general area, like eu-west, where a zone is similar to a datacenter. If a location has a parent, that implies it is within that location. For example a location can be a rack, whose parent is likely to be a zone.

Specified by:

listAssignableLocations in interface BlobStore

deleteAndVerifyContainerGone

protected abstract boolean deleteAndVerifyContainerGone(String container)