Package org.apache.hadoop.fs.azure

A distributed implementation of FileSystem for reading and writing files on Azure Block Storage. This implementation is blob-based and stores files on Azure in their native form for interoperability with other Azure tools.

Interface Summary

Interface	Description
AzureFileSystemThreadTask	Interface for executing the file operation by a thread.
KeyProvider	The interface that every Azure file system key provider must implement.
SASKeyGeneratorInterface	Iterface used by AzureNativeFileSysteStore to retrieve SAS Keys for the respective azure storage entity.
WasbAuthorizerInterface	Interface to implement authorization support in WASB.

Class Summary

Class	Description
AzureLinkedStack<E>	A simple generic stack implementation using linked lists.
AzureNativeFileSystemStore	Core implementation of Windows Azure Filesystem for Hadoop.
BlockBlobAppendStream	Stream object that implements append for Block Blobs in WASB.
CachingAuthorizer<K,V>	Class that provides caching for Authorize and getSasUri calls
LocalSASKeyGeneratorImpl	Local SAS Key Generation implementation.
NativeAzureFileSystem	A FileSystem for reading and writing files stored on Windows Azure.
NativeAzureFileSystem.FolderRenamePending	A description of a folder rename operation, including the source and destination keys, and descriptions of the files in the source folder.
NativeAzureFileSystem.Secure	A FileSystem for reading and writing files stored on Windows Azure.
RemoteSASKeyGeneratorImpl	Class implementing a RemoteSASKeyGenerator.
RemoteWasbAuthorizerImpl	Class implementing WasbAuthorizerInterface using a remote service that implements the authorization operation.
SASKeyGeneratorImpl	Abstract base class for the SAS Key Generator implementation
SecureStorageInterfaceImpl	An implementation of the StorageInterface for SAS Key mode.
SecureWasbRemoteCallHelper	Helper class the has constants and helper methods used in WASB when integrating with a remote http cred service which uses Kerberos and delegation tokens.
SelfRenewingLease	An Azure blob lease that automatically renews itself indefinitely using a background thread.
SelfThrottlingIntercept	Introduces delays in our Azure traffic to prevent overrunning the server-side throttling limits.
SendRequestIntercept	Manages the lifetime of binding on the operation contexts to intercept send request events to Azure storage and allow concurrent OOB I/Os.
ShellDecryptionKeyProvider	Shell decryption key provider which invokes an external script that will perform the key decryption.
SimpleKeyProvider	Key provider that simply returns the storage account key from the configuration as plaintext.
SyncableDataOutputStream	Support the Syncable interface on top of a DataOutputStream.
Wasb	WASB implementation of AbstractFileSystem.
WasbFsck	An fsck tool implementation for WASB that does various admin/cleanup/recovery tasks on the WASB file system.
WasbRemoteCallHelper	Helper class the has constants and helper methods used in WASB when integrating with a remote http cred service.
Wasbs	WASB implementation of AbstractFileSystem for wasbs scheme.

Enum Summary

Enum	Description
WasbAuthorizationOperations	Different authorization operations supported in WASB.

Exception Summary

Exception	Description
AzureException	Thrown if there is a problem communicating with Azure Storage service.
KeyProviderException	Thrown if there is a problem instantiating a KeyProvider or retrieving a key using a KeyProvider object.
SASKeyGenerationException	Exception that gets thrown during generation of SAS Key.
SecureModeException	Exception that is thrown when any error is encountered is SAS Mode operation of WASB.
WasbAuthorizationException	Exception that gets thrown during the authorization failures in WASB.
WasbRemoteCallException	Exception that gets thrown when a remote call made from WASB to external cred service fails.