com.microsoft.azure.storage.blob

Class CloudPageBlob

java.lang.Object

com.microsoft.azure.storage.blob.CloudBlob

com.microsoft.azure.storage.blob.CloudPageBlob

All Implemented Interfaces:

ListBlobItem

public final class CloudPageBlob
extends CloudBlob

Represents a Microsoft Azure page blob.

Constructor Summary

Constructors

Constructor and Description
CloudPageBlob(CloudPageBlob otherBlob) Creates an instance of the CloudPageBlob class by copying values from another page blob.
CloudPageBlob(StorageUri blobAbsoluteUri) Creates an instance of the CloudPageBlob class using the specified absolute URI and storage service client.
CloudPageBlob(StorageUri blobAbsoluteUri, StorageCredentials credentials) Creates an instance of the CloudPageBlob class using the specified absolute StorageUri and credentials.
CloudPageBlob(StorageUri blobAbsoluteUri, String snapshotID, StorageCredentials credentials) Creates an instance of the CloudPageBlob class using the specified absolute StorageUri, snapshot ID, and credentials.
CloudPageBlob(URI blobAbsoluteUri) Creates an instance of the CloudPageBlob class using the specified absolute URI and storage service client.
CloudPageBlob(URI blobAbsoluteUri, StorageCredentials credentials) Creates an instance of the CloudPageBlob class using the specified absolute URI and credentials.
CloudPageBlob(URI blobAbsoluteUri, String snapshotID, StorageCredentials credentials) Creates an instance of the CloudPageBlob class using the specified absolute URI, snapshot ID, and credentials.

Method Summary

Methods

Modifier and Type	Method and Description
void	clearPages(long offset, long length) Clears pages from a page blob.
void	clearPages(long offset, long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Clears pages from a page blob using the specified lease ID, request options, and operation context.
void	create(long length) Creates a page blob.
void	create(long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Creates a page blob using the specified request options and operation context.
void	create(long length, PremiumPageBlobTier premiumBlobTier, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Creates a page blob using the specified request options and operation context.
ArrayList<PageRange>	downloadPageRanges() Returns a collection of page ranges and their starting and ending byte offsets.
ArrayList<PageRange>	downloadPageRanges(AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Returns a collection of page ranges and their starting and ending byte offsets using the specified request options and operation context.
List<PageRange>	downloadPageRanges(long offset, Long length) Returns a collection of page ranges and their starting and ending byte offsets.
List<PageRange>	downloadPageRanges(long offset, Long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Returns a collection of page ranges and their starting and ending byte offsets using the specified request options and operation context.
List<PageRangeDiff>	downloadPageRangesDiff(String previousSnapshot) Gets the collection of page ranges that differ between a specified snapshot and this object.
List<PageRangeDiff>	downloadPageRangesDiff(String previousSnapshot, Long offset, Long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Gets the collection of page ranges that differ between a specified snapshot and this object.
BlobOutputStream	openWriteExisting() Opens an output stream object to write data to the page blob.
BlobOutputStream	openWriteExisting(AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context.
BlobOutputStream	openWriteNew(long length) Opens an output stream object to write data to the page blob.
BlobOutputStream	openWriteNew(long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context.
BlobOutputStream	openWriteNew(long length, PremiumPageBlobTier premiumBlobTier, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context.
void	resize(long size) Resizes the page blob to the specified size.
void	resize(long size, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Resizes the page blob to the specified size.
void	setStreamWriteSizeInBytes(int streamWriteSizeInBytes) Sets the number of bytes to buffer when writing to a BlobOutputStream.
String	startCopy(CloudPageBlob sourceBlob) Requests the service to start copying a blob's contents, properties, and metadata to a new blob.
String	startCopy(CloudPageBlob sourceBlob, AccessCondition sourceAccessCondition, AccessCondition destinationAccessCondition, BlobRequestOptions options, OperationContext opContext) Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.
String	startCopy(CloudPageBlob sourceBlob, PremiumPageBlobTier premiumBlobTier, AccessCondition sourceAccessCondition, AccessCondition destinationAccessCondition, BlobRequestOptions options, OperationContext opContext) Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified blob tier, access conditions, lease ID, request options, and operation context.
String	startIncrementalCopy(CloudPageBlob sourceSnapshot) Requests the service to start an incremental copy of another page blob's contents, properties, and metadata to this blob.
String	startIncrementalCopy(CloudPageBlob sourceSnapshot, AccessCondition destinationAccessCondition, BlobRequestOptions options, OperationContext opContext) Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.
String	startIncrementalCopy(URI sourceSnapshot) Requests the service to start an incremental copy of another page blob's contents, properties, and metadata to this blob.
String	startIncrementalCopy(URI sourceSnapshot, AccessCondition destinationAccessCondition, BlobRequestOptions options, OperationContext opContext) Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.
void	upload(InputStream sourceStream, long length) Uploads the source stream data to the page blob.
void	upload(InputStream sourceStream, long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Uploads the source stream data to the page blob using the specified lease ID, request options, and operation context.
void	upload(InputStream sourceStream, long length, PremiumPageBlobTier premiumBlobTier, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Uploads the source stream data to the page blob using the specified lease ID, request options, and operation context.
void	uploadFromByteArray(byte[] buffer, int offset, int length, PremiumPageBlobTier premiumBlobTier, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Uploads a blob from data in a byte array.
void	uploadFromFile(String path, PremiumPageBlobTier premiumBlobTier, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Uploads a blob from a file.
void	uploadPages(InputStream sourceStream, long offset, long length) Uploads a range of contiguous pages, up to 4 MB in size, at the specified offset in the page blob.
void	uploadPages(InputStream sourceStream, long offset, long length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext opContext) Uploads a range of contiguous pages, up to 4 MB in size, at the specified offset in the page blob, using the specified lease ID, request options, and operation context.
void	uploadPremiumPageBlobTier(PremiumPageBlobTier premiumBlobTier) Sets the blob tier on a page blob on a premium storage account.
void	uploadPremiumPageBlobTier(PremiumPageBlobTier premiumBlobTier, BlobRequestOptions options, OperationContext opContext) Sets the tier on a page blob on a premium storage account.

Methods inherited from class com.microsoft.azure.storage.blob.CloudBlob

abortCopy, abortCopy, acquireLease, acquireLease, acquireLease, breakLease, breakLease, changeLease, changeLease, createSnapshot, createSnapshot, createSnapshot, delete, delete, deleteIfExists, deleteIfExists, download, download, downloadAccountInfo, downloadAccountInfo, downloadAttributes, downloadAttributes, downloadRange, downloadRange, downloadRangeToByteArray, downloadRangeToByteArray, downloadToByteArray, downloadToByteArray, downloadToFile, downloadToFile, exists, exists, generateSharedAccessSignature, generateSharedAccessSignature, generateSharedAccessSignature, getContainer, getCopyState, getMetadata, getName, getParent, getProperties, getQualifiedStorageUri, getQualifiedUri, getServiceClient, getSnapshotID, getSnapshotQualifiedStorageUri, getSnapshotQualifiedUri, getStorageUri, getStreamMinimumReadSizeInBytes, getStreamWriteSizeInBytes, getUri, isSnapshot, openInputStream, openInputStream, releaseLease, releaseLease, renewLease, renewLease, setMetadata, setStreamMinimumReadSizeInBytes, startCopy, startCopy, undelete, undelete, uploadFromByteArray, uploadFromByteArray, uploadFromFile, uploadFromFile, uploadMetadata, uploadMetadata, uploadProperties, uploadProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

CloudPageBlob

public CloudPageBlob(URI blobAbsoluteUri)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute URI and storage service client.

Parameters:

blobAbsoluteUri - A java.net.URI object which represents the absolute URI to the blob.

Throws:

StorageException - If a storage service error occurred.

CloudPageBlob

public CloudPageBlob(StorageUri blobAbsoluteUri)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute URI and storage service client.

Parameters:

blobAbsoluteUri - A StorageUri object which represents the absolute URI to the blob.

Throws:

StorageException - If a storage service error occurred.

CloudPageBlob

public CloudPageBlob(CloudPageBlob otherBlob)

Creates an instance of the CloudPageBlob class by copying values from another page blob.

Parameters:

otherBlob - A CloudPageBlob object which represents the page blob to copy.

CloudPageBlob

public CloudPageBlob(URI blobAbsoluteUri,
             StorageCredentials credentials)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute URI and credentials.

Parameters:

blobAbsoluteUri - A java.net.URI object that represents the absolute URI to the blob.

credentials - A StorageCredentials object used to authenticate access.

Throws:

StorageException - If a storage service error occurred.

CloudPageBlob

public CloudPageBlob(URI blobAbsoluteUri,
             String snapshotID,
             StorageCredentials credentials)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute URI, snapshot ID, and credentials.

Parameters:

blobAbsoluteUri - A java.net.URI object that represents the absolute URI to the blob.

snapshotID - A String that represents the snapshot version, if applicable.

credentials - A StorageCredentials object used to authenticate access.

Throws:

StorageException - If a storage service error occurred.

CloudPageBlob

public CloudPageBlob(StorageUri blobAbsoluteUri,
             StorageCredentials credentials)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute StorageUri and credentials.

Parameters:

blobAbsoluteUri - A StorageUri object that represents the absolute URI to the blob.

credentials - A StorageCredentials object used to authenticate access.

Throws:

StorageException - If a storage service error occurred.

CloudPageBlob

public CloudPageBlob(StorageUri blobAbsoluteUri,
             String snapshotID,
             StorageCredentials credentials)
              throws StorageException

Creates an instance of the CloudPageBlob class using the specified absolute StorageUri, snapshot ID, and credentials.

Parameters:

blobAbsoluteUri - A StorageUri object that represents the absolute URI to the blob.

snapshotID - A String that represents the snapshot version, if applicable.

credentials - A StorageCredentials object used to authenticate access.

Throws:

StorageException - If a storage service error occurred.

Method Detail

startCopy

@DoesServiceRequest
public final String startCopy(CloudPageBlob sourceBlob)
                       throws StorageException,
                              URISyntaxException

Requests the service to start copying a blob's contents, properties, and metadata to a new blob.

Parameters:

sourceBlob - A CloudPageBlob object that represents the source blob to copy.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startCopy

@DoesServiceRequest
public final String startCopy(CloudPageBlob sourceBlob,
                                  AccessCondition sourceAccessCondition,
                                  AccessCondition destinationAccessCondition,
                                  BlobRequestOptions options,
                                  OperationContext opContext)
                       throws StorageException,
                              URISyntaxException

Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.

Parameters:

sourceBlob - A CloudPageBlob object that represents the source blob to copy.

sourceAccessCondition - An AccessCondition object that represents the access conditions for the source blob.

destinationAccessCondition - An AccessCondition object that represents the access conditions for the destination blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startCopy

@DoesServiceRequest
public final String startCopy(CloudPageBlob sourceBlob,
                                  PremiumPageBlobTier premiumBlobTier,
                                  AccessCondition sourceAccessCondition,
                                  AccessCondition destinationAccessCondition,
                                  BlobRequestOptions options,
                                  OperationContext opContext)
                       throws StorageException,
                              URISyntaxException

Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified blob tier, access conditions, lease ID, request options, and operation context.

Parameters:

sourceBlob - A CloudPageBlob object that represents the source blob to copy.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

sourceAccessCondition - An AccessCondition object that represents the access conditions for the source blob.

destinationAccessCondition - An AccessCondition object that represents the access conditions for the destination blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startIncrementalCopy

@DoesServiceRequest
public final String startIncrementalCopy(CloudPageBlob sourceSnapshot)
                                  throws StorageException,
                                         URISyntaxException

Requests the service to start an incremental copy of another page blob's contents, properties, and metadata to this blob.

Parameters:

sourceSnapshot - A CloudPageBlob object that represents the source blob to copy. Must be a snapshot.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startIncrementalCopy

@DoesServiceRequest
public final String startIncrementalCopy(URI sourceSnapshot)
                                  throws StorageException,
                                         URISyntaxException

Requests the service to start an incremental copy of another page blob's contents, properties, and metadata to this blob.

Parameters:

sourceSnapshot - A CloudPageBlob object that represents the source blob to copy. Must be a snapshot.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startIncrementalCopy

@DoesServiceRequest
public final String startIncrementalCopy(CloudPageBlob sourceSnapshot,
                                             AccessCondition destinationAccessCondition,
                                             BlobRequestOptions options,
                                             OperationContext opContext)
                                  throws StorageException,
                                         URISyntaxException

Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.

Parameters:

sourceSnapshot - A CloudPageBlob object that represents the source blob to copy. Must be a snapshot.

destinationAccessCondition - An AccessCondition object that represents the access conditions for the destination blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

startIncrementalCopy

@DoesServiceRequest
public final String startIncrementalCopy(URI sourceSnapshot,
                                             AccessCondition destinationAccessCondition,
                                             BlobRequestOptions options,
                                             OperationContext opContext)
                                  throws StorageException,
                                         URISyntaxException

Requests the service to start copying a blob's contents, properties, and metadata to a new blob, using the specified access conditions, lease ID, request options, and operation context.

Parameters:

sourceSnapshot - A CloudPageBlob object that represents the source blob to copy. Must be a snapshot.

destinationAccessCondition - An AccessCondition object that represents the access conditions for the destination blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A String which represents the copy ID associated with the copy operation.

Throws:

StorageException - If a storage service error occurred.

URISyntaxException

clearPages

@DoesServiceRequest
public void clearPages(long offset,
                                 long length)
                throws StorageException

Clears pages from a page blob.

Calling clearPages releases the storage space used by the specified pages. Pages that have been cleared are no longer tracked as part of the page blob, and no longer incur a charge against the storage account.

Parameters:

offset - The offset, in bytes, at which to begin clearing pages. This value must be a multiple of 512.

length - The length, in bytes, of the data range to be cleared. This value must be a multiple of 512.

Throws:

StorageException - If a storage service error occurred.

clearPages

@DoesServiceRequest
public void clearPages(long offset,
                                 long length,
                                 AccessCondition accessCondition,
                                 BlobRequestOptions options,
                                 OperationContext opContext)
                throws StorageException

Clears pages from a page blob using the specified lease ID, request options, and operation context.

Calling clearPages releases the storage space used by the specified pages. Pages that have been cleared are no longer tracked as part of the page blob, and no longer incur a charge against the storage account.

Parameters:

offset - A long which represents the offset, in bytes, at which to begin clearing pages. This value must be a multiple of 512.

length - A long which represents the length, in bytes, of the data range to be cleared. This value must be a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

StorageException - If a storage service error occurred.

create

@DoesServiceRequest
public void create(long length)
            throws StorageException

Creates a page blob. If the blob already exists, this will replace it. To instead throw an error if the blob already exists, use the create(long, AccessCondition, BlobRequestOptions, OperationContext) overload with AccessCondition.generateIfNotExistsCondition().

Parameters:

length - A long which represents the size, in bytes, of the page blob.

Throws:

IllegalArgumentException - If the length is not a multiple of 512.

StorageException - If a storage service error occurred.

create

@DoesServiceRequest
public void create(long length,
                             AccessCondition accessCondition,
                             BlobRequestOptions options,
                             OperationContext opContext)
            throws StorageException

Creates a page blob using the specified request options and operation context. If the blob already exists, this will replace it. To instead throw an error if the blob already exists, use AccessCondition.generateIfNotExistsCondition().

Parameters:

length - A long which represents the size, in bytes, of the page blob.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

IllegalArgumentException - If the length is not a multiple of 512.

StorageException - If a storage service error occurred.

create

@DoesServiceRequest
public void create(long length,
                             PremiumPageBlobTier premiumBlobTier,
                             AccessCondition accessCondition,
                             BlobRequestOptions options,
                             OperationContext opContext)
            throws StorageException

Creates a page blob using the specified request options and operation context. If the blob already exists, this will replace it. To instead throw an error if the blob already exists, use AccessCondition.generateIfNotExistsCondition().

Parameters:

length - A long which represents the size, in bytes, of the page blob.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

IllegalArgumentException - If the length is not a multiple of 512.

StorageException - If a storage service error occurred.

downloadPageRanges

@DoesServiceRequest
public ArrayList<PageRange> downloadPageRanges()
                                        throws StorageException

Returns a collection of page ranges and their starting and ending byte offsets.

The start and end byte offsets for each page range are inclusive.

Returns:

An ArrayList object which represents the set of page ranges and their starting and ending byte offsets.

Throws:

StorageException - If a storage service error occurred.

downloadPageRanges

@DoesServiceRequest
public ArrayList<PageRange> downloadPageRanges(AccessCondition accessCondition,
                                                         BlobRequestOptions options,
                                                         OperationContext opContext)
                                        throws StorageException

Returns a collection of page ranges and their starting and ending byte offsets using the specified request options and operation context.

Parameters:

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

An ArrayList object which represents the set of page ranges and their starting and ending byte offsets.

Throws:

StorageException - If a storage service error occurred.

downloadPageRanges

@DoesServiceRequest
public List<PageRange> downloadPageRanges(long offset,
                                                    Long length)
                                   throws StorageException

Returns a collection of page ranges and their starting and ending byte offsets.

Parameters:

offset - The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

length - The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

Returns:

A List object which represents the set of page ranges and their starting and ending byte offsets.

Throws:

StorageException - If a storage service error occurred.

downloadPageRanges

@DoesServiceRequest
public List<PageRange> downloadPageRanges(long offset,
                                                    Long length,
                                                    AccessCondition accessCondition,
                                                    BlobRequestOptions options,
                                                    OperationContext opContext)
                                   throws StorageException

Returns a collection of page ranges and their starting and ending byte offsets using the specified request options and operation context.

Parameters:

offset - The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

length - The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A List object which represents the set of page ranges and their starting and ending byte offsets.

Throws:

StorageException - If a storage service error occurred.

downloadPageRangesDiff

@DoesServiceRequest
public List<PageRangeDiff> downloadPageRangesDiff(String previousSnapshot)
                                           throws StorageException

Gets the collection of page ranges that differ between a specified snapshot and this object.

Parameters:

previousSnapshot - A string representing the snapshot to use as the starting point for the diff. If this CloudPageBlob represents a snapshot, the previousSnapshot parameter must be prior to the current snapshot.

Returns:

A List object containing the set of differing page ranges.

Throws:

StorageException - If a storage service error occurred.

downloadPageRangesDiff

@DoesServiceRequest
public List<PageRangeDiff> downloadPageRangesDiff(String previousSnapshot,
                                                            Long offset,
                                                            Long length,
                                                            AccessCondition accessCondition,
                                                            BlobRequestOptions options,
                                                            OperationContext opContext)
                                           throws StorageException

Gets the collection of page ranges that differ between a specified snapshot and this object.

Parameters:

previousSnapshot - A string representing the snapshot timestamp to use as the starting point for the diff. If this CloudPageBlob represents a snapshot, the previousSnapshot parameter must be prior to the current snapshot.

offset - The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

length - The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A List object containing the set of differing page ranges.

Throws:

StorageException - If a storage service error occurred.

openWriteExisting

@DoesServiceRequest
public BlobOutputStream openWriteExisting()
                                   throws StorageException

Opens an output stream object to write data to the page blob. The page blob must already exist and any existing data may be overwritten.

Returns:

A BlobOutputStream object used to write data to the blob.

Throws:

StorageException - If a storage service error occurred.

openWriteExisting

@DoesServiceRequest
public BlobOutputStream openWriteExisting(AccessCondition accessCondition,
                                                    BlobRequestOptions options,
                                                    OperationContext opContext)
                                   throws StorageException

Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context. The page blob must already exist and any existing data may be overwritten.

Parameters:

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A BlobOutputStream object used to write data to the blob.

Throws:

StorageException - If a storage service error occurred.

openWriteNew

@DoesServiceRequest
public BlobOutputStream openWriteNew(long length)
                              throws StorageException

Opens an output stream object to write data to the page blob. The page blob does not need to yet exist and will be created with the length specified. If the blob already exists on the service, it will be overwritten.

To avoid overwriting and instead throw an error, please use the openWriteNew(long, AccessCondition, BlobRequestOptions, OperationContext) overload with the appropriate AccessCondition.

Parameters:

length - A long which represents the length, in bytes, of the stream to create. This value must be a multiple of 512.

Returns:

A BlobOutputStream object used to write data to the blob.

Throws:

StorageException - If a storage service error occurred.

openWriteNew

@DoesServiceRequest
public BlobOutputStream openWriteNew(long length,
                                               AccessCondition accessCondition,
                                               BlobRequestOptions options,
                                               OperationContext opContext)
                              throws StorageException

Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context. The page blob does not need to yet exist and will be created with the length specified.If the blob already exists on the service, it will be overwritten.

To avoid overwriting and instead throw an error, please pass in an AccessCondition generated using AccessCondition.generateIfNotExistsCondition().

Parameters:

length - A long which represents the length, in bytes, of the stream to create. This value must be a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A BlobOutputStream object used to write data to the blob.

Throws:

StorageException - If a storage service error occurred.

openWriteNew

@DoesServiceRequest
public BlobOutputStream openWriteNew(long length,
                                               PremiumPageBlobTier premiumBlobTier,
                                               AccessCondition accessCondition,
                                               BlobRequestOptions options,
                                               OperationContext opContext)
                              throws StorageException

Opens an output stream object to write data to the page blob, using the specified lease ID, request options and operation context. The page blob does not need to yet exist and will be created with the length specified.If the blob already exists on the service, it will be overwritten.

To avoid overwriting and instead throw an error, please pass in an AccessCondition generated using AccessCondition.generateIfNotExistsCondition().

Parameters:

length - A long which represents the length, in bytes, of the stream to create. This value must be a multiple of 512.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Returns:

A BlobOutputStream object used to write data to the blob.

Throws:

StorageException - If a storage service error occurred.

resize

public void resize(long size)
            throws StorageException

Resizes the page blob to the specified size.

Parameters:

size - A long which represents the size of the page blob, in bytes.

Throws:

StorageException - If a storage service error occurred.

resize

public void resize(long size,
          AccessCondition accessCondition,
          BlobRequestOptions options,
          OperationContext opContext)
            throws StorageException

Resizes the page blob to the specified size.

Parameters:

size - A long which represents the size of the page blob, in bytes.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

StorageException - If a storage service error occurred.

uploadFromByteArray

public void uploadFromByteArray(byte[] buffer,
                       int offset,
                       int length,
                       PremiumPageBlobTier premiumBlobTier,
                       AccessCondition accessCondition,
                       BlobRequestOptions options,
                       OperationContext opContext)
                         throws StorageException,
                                IOException

Uploads a blob from data in a byte array. If the blob already exists on the service, it will be overwritten.

Parameters:

buffer - A byte array which represents the data to write to the blob.

offset - A int which represents the offset of the byte array from which to start the data upload.

length - An int which represents the number of bytes to upload from the input buffer.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

accessCondition - An AccessCondition object that represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

StorageException - If a storage service error occurred.

IOException

uploadFromFile

public void uploadFromFile(String path,
                  PremiumPageBlobTier premiumBlobTier,
                  AccessCondition accessCondition,
                  BlobRequestOptions options,
                  OperationContext opContext)
                    throws StorageException,
                           IOException

Uploads a blob from a file. If the blob already exists on the service, it will be overwritten.

Parameters:

path - A String which represents the path to the file to be uploaded.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

accessCondition - An AccessCondition object that represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object that represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

StorageException - If a storage service error occurred.

IOException

upload

@DoesServiceRequest
public void upload(InputStream sourceStream,
                             long length)
            throws StorageException,
                   IOException

Uploads the source stream data to the page blob. If the blob already exists on the service, it will be overwritten.

Specified by:

upload in class CloudBlob

Parameters:

sourceStream - An InputStream object to read from.

length - A long which represents the length, in bytes, of the stream data, must be non zero and a multiple of 512.

Throws:

IOException - If an I/O exception occurred.

StorageException - If a storage service error occurred.

upload

@DoesServiceRequest
public void upload(InputStream sourceStream,
                             long length,
                             AccessCondition accessCondition,
                             BlobRequestOptions options,
                             OperationContext opContext)
            throws StorageException,
                   IOException

Uploads the source stream data to the page blob using the specified lease ID, request options, and operation context. If the blob already exists on the service, it will be overwritten.

Specified by:

upload in class CloudBlob

Parameters:

sourceStream - An InputStream object to read from.

length - A long which represents the length, in bytes, of the stream data. This must be great than zero and a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

IOException - If an I/O exception occurred.

StorageException - If a storage service error occurred.

upload

@DoesServiceRequest
public void upload(InputStream sourceStream,
                             long length,
                             PremiumPageBlobTier premiumBlobTier,
                             AccessCondition accessCondition,
                             BlobRequestOptions options,
                             OperationContext opContext)
            throws StorageException,
                   IOException

Uploads the source stream data to the page blob using the specified lease ID, request options, and operation context. If the blob already exists on the service, it will be overwritten.

Parameters:

sourceStream - An InputStream object to read from.

length - A long which represents the length, in bytes, of the stream data. This must be great than zero and a multiple of 512.

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

IOException - If an I/O exception occurred.

StorageException - If a storage service error occurred.

uploadPages

@DoesServiceRequest
public void uploadPages(InputStream sourceStream,
                                  long offset,
                                  long length)
                 throws StorageException,
                        IOException

Uploads a range of contiguous pages, up to 4 MB in size, at the specified offset in the page blob.

Parameters:

sourceStream - An InputStream object which represents the input stream to write to the page blob.

offset - A long which represents the offset, in number of bytes, at which to begin writing the data. This value must be a multiple of 512.

length - A long which represents the length, in bytes, of the data to write. This value must be a multiple of 512.

Throws:

IllegalArgumentException - If the offset or length are not multiples of 512, or if the length is greater than 4 MB.

IOException - If an I/O exception occurred.

StorageException - If a storage service error occurred.

uploadPages

@DoesServiceRequest
public void uploadPages(InputStream sourceStream,
                                  long offset,
                                  long length,
                                  AccessCondition accessCondition,
                                  BlobRequestOptions options,
                                  OperationContext opContext)
                 throws StorageException,
                        IOException

Uploads a range of contiguous pages, up to 4 MB in size, at the specified offset in the page blob, using the specified lease ID, request options, and operation context.

Parameters:

sourceStream - An InputStream object which represents the input stream to write to the page blob.

offset - A long which represents the offset, in number of bytes, at which to begin writing the data. This value must be a multiple of 512.

length - A long which represents the length, in bytes, of the data to write. This value must be a multiple of 512.

accessCondition - An AccessCondition object which represents the access conditions for the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

IllegalArgumentException - If the offset or length are not multiples of 512, or if the length is greater than 4 MB.

IOException - If an I/O exception occurred.

StorageException - If a storage service error occurred.

setStreamWriteSizeInBytes

public void setStreamWriteSizeInBytes(int streamWriteSizeInBytes)

Sets the number of bytes to buffer when writing to a BlobOutputStream.

Specified by:

setStreamWriteSizeInBytes in class CloudBlob

Parameters:

streamWriteSizeInBytes - An int which represents the maximum number of bytes to buffer when writing to a page blob stream. This value must be a multiple of 512 and less than or equal to 4 MB.

Throws:

IllegalArgumentException - If streamWriteSizeInBytes is less than 512, greater than 4 MB, or not a multiple or 512.

uploadPremiumPageBlobTier

@DoesServiceRequest
public void uploadPremiumPageBlobTier(PremiumPageBlobTier premiumBlobTier)
                               throws StorageException

Sets the blob tier on a page blob on a premium storage account.

Parameters:

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

Throws:

StorageException - If a storage service error occurred.

uploadPremiumPageBlobTier

@DoesServiceRequest
public void uploadPremiumPageBlobTier(PremiumPageBlobTier premiumBlobTier,
                                                BlobRequestOptions options,
                                                OperationContext opContext)
                               throws StorageException

Sets the tier on a page blob on a premium storage account.

Parameters:

premiumBlobTier - A PremiumPageBlobTier object which represents the tier of the blob.

options - A BlobRequestOptions object that specifies any additional options for the request. Specifying null will use the default request options from the associated service client ( CloudBlobClient).

opContext - An OperationContext object which represents the context for the current operation. This object is used to track requests to the storage service, and to provide additional runtime information about the operation.

Throws:

StorageException - If a storage service error occurred.