Module: Azure::Storage::Blob::Container

Includes:
Common::Service
Included in:
BlobService
Defined in:
lib/azure/storage/blob/container.rb

Defined Under Namespace

Classes: Container

Instance Method Summary collapse

Instance Method Details

#acquire_container_lease(container, options = {}) ⇒ Object

Public: Establishes an exclusive write lock on a container. The lock duration can be 15 to 60 seconds, or can be infinite. To write to a locked container, a client must provide a lease ID.

Attributes

  • container - String. The container name.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :duration - Integer. Default -1. Specifies the duration of the lease, in seconds, or negative one (-1)

    for a lease that never expires. A non-infinite lease can be between 15 and 60 seconds. (optional)

  • :proposed_lease_id - String. Proposed lease ID, in a GUID string format. The Blob service returns 400 (Invalid request)

    if the proposed lease ID is not in the correct format. (optional)

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :if_modified_since - String. A DateTime value. Specify this conditional header to acquire the lease

    only if the container has been modified since the specified date/time. If the container has not been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_unmodified_since - String. A DateTime value. Specify this conditional header to acquire the lease

    only if the container has not been modified since the specified date/time. If the container has been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_match - String. An ETag value. Specify an ETag value for this conditional header to acquire the lease

    only if the container's ETag value matches the value specified. If the values do not match,
the Blob service returns status code 412 (Precondition Failed).

  • :if_none_match - String. An ETag value. Specify an ETag value for this conditional header to acquire the lease

    only if the container's ETag value does not match the value specified. If the values are identical,
the Blob service returns status code 412 (Precondition Failed).

  • :origin - String. Optional. Specifies the origin from which the request is issued. The presence of this header results

    in cross-origin resource sharing headers on the response.

See msdn.microsoft.com/en-us/library/azure/ee691972.aspx

Returns a String of the new unique lease id. While the lease is active, you must include the lease ID with any request to write, or to renew, change, or release the lease.



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# File 'lib/azure/storage/blob/container.rb', line 378

def acquire_container_lease(container, options = {})
  acquire_lease container, nil, options
end

#break_container_lease(container, options = {}) ⇒ Object

Public: Breaks the lease, if the container has an active lease. Once a lease is broken, it cannot be renewed. Any authorized request can break the lease; the request is not required to specify a matching lease ID. When a lease is broken, the lease break period is allowed to elapse, during which time no lease operation except break and release can be performed on the container. When a lease is successfully broken, the response indicates the interval in seconds until a new lease can be acquired.

A lease that has been broken can also be released, in which case another client may immediately acquire the lease on the container.

Attributes

  • container - String. The container name.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :break_period - Integer. The proposed duration of seconds that the lease should continue before it is

    broken, between 0 and 60 seconds. This break period is only used if it is shorter than
the time remaining on the lease. If longer, the time remaining on the lease is used. A
new lease will not be available before the break period has expired, but the lease may
be held for longer than the break period.

If this option is not used, a fixed-duration lease breaks after the remaining lease
period elapses, and an infinite lease breaks immediately.

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :if_modified_since - String. A DateTime value. Specify this conditional header to break the lease

    only if the container has been modified since the specified date/time. If the container has not been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_unmodified_since - String. A DateTime value. Specify this conditional header to break the lease

    only if the container has not been modified since the specified date/time. If the container has been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_match - String. An ETag value. Specify an ETag value for this conditional header to break the lease

    only if the container's ETag value matches the value specified. If the values do not match,
the Blob service returns status code 412 (Precondition Failed).

  • :if_none_match - String. An ETag value. Specify an ETag value for this conditional header to break the lease

    only if the container's ETag value does not match the value specified. If the values are identical,
the Blob service returns status code 412 (Precondition Failed).

  • :origin - String. Optional. Specifies the origin from which the request is issued. The presence of this header results

    in cross-origin resource sharing headers on the response.

See msdn.microsoft.com/en-us/library/azure/ee691972.aspx

Returns an Integer of the remaining lease time. This value is the approximate time remaining in the lease period, in seconds. This header is returned only for a successful request to break the lease. If the break is immediate, 0 is returned.



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# File 'lib/azure/storage/blob/container.rb', line 541

def break_container_lease(container, options = {})
  break_lease container, nil, options
end

#change_container_lease(container, lease, proposed_lease, options = {}) ⇒ Object

Public: Change the lease ID.

Attributes

  • container - String. The container name.

  • lease - String. The existing lease id.

  • proposed_lease - String. Proposed lease ID, in a GUID string format. The Blob service returns 400 (Invalid request)

    if the proposed lease ID is not in the correct format. (optional).

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :if_modified_since - String. A DateTime value. Specify this conditional header to change the lease

    only if the container has been modified since the specified date/time. If the container has not been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_unmodified_since - String. A DateTime value. Specify this conditional header to change the lease

    only if the container has not been modified since the specified date/time. If the container has been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_match - String. An ETag value. Specify an ETag value for this conditional header to change the lease

    only if the container's ETag value matches the value specified. If the values do not match,
the Blob service returns status code 412 (Precondition Failed).

  • :if_none_match - String. An ETag value. Specify an ETag value for this conditional header to change the lease

    only if the container's ETag value does not match the value specified. If the values are identical,
the Blob service returns status code 412 (Precondition Failed).

  • :origin - String. Optional. Specifies the origin from which the request is issued. The presence of this header results

    in cross-origin resource sharing headers on the response.

See msdn.microsoft.com/en-us/library/azure/ee691972.aspx

Returns the changed lease id



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# File 'lib/azure/storage/blob/container.rb', line 453

def change_container_lease(container, lease, proposed_lease, options = {})
  change_lease container, nil, lease, proposed_lease, options
end

#create_container(name, options = {}) ⇒ Object

Public: Create a new container

Attributes

  • name - String. The name of the container.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :metadata - Hash. User defined metadata for the container (optional).

  • :public_access_level - String. One of “container” or “blob” (optional).

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

See msdn.microsoft.com/en-us/library/azure/dd179468.aspx

Returns a Container



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# File 'lib/azure/storage/blob/container.rb', line 63

def create_container(name, options = {})
  # Query
  query = {}
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  # Scheme + path
  uri = container_uri(name, query)

  # Headers
  headers = {}
  StorageService.add_metadata_to_headers(options[:metadata], headers) if options[:metadata]
  headers["x-ms-blob-public-access"] = options[:public_access_level].to_s if options[:public_access_level]

  # Call
  response = call(:put, uri, nil, headers, options)

  # result
  container = Serialization.container_from_headers(response.headers)
  container.name = name
  container.metadata = options[:metadata]
  container
end

#delete_container(name, options = {}) ⇒ Object

Public: Deletes a container.

Attributes

  • name - String. The name of the container.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :lease_id - String. Required for version 2012-02-12 and newer if the container has an active lease. To call

    Delete Container on a container that has an active lease, specify the lease ID in this header.
If this header is not specified when there is an active lease, Delete Container will return 409
(Conflict). If you specify the wrong lease ID, or a lease ID on a container that does not have
an active lease, Delete Container will return 412 (Precondition failed).

See msdn.microsoft.com/en-us/library/azure/dd179408.aspx

Returns nil on success



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# File 'lib/azure/storage/blob/container.rb', line 326

def delete_container(name, options = {})
  # Query
  query = {}
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  headers = options[:lease_id] ? { "x-ms-lease-id" => options[:lease_id] } : {}

  # Call
  call(:delete, container_uri(name, query), nil, headers, options)

  # result
  nil
end

#get_container_acl(name, options = {}) ⇒ Object

Public: Gets the access control list (ACL) and any container-level access policies for the container.

Attributes

  • name - String. The name of the container

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :location_mode - LocationMode. Specifies the location mode used to decide

    which location the request should be sent to.

  • :lease_id - String. If specified, Get Container ACL only succeeds if the container’s lease is

    active and matches this ID. If there is no active lease or the ID does not match, 412
(Precondition Failed) is returned.

See msdn.microsoft.com/en-us/library/azure/dd179469.aspx

Returns a tuple of (container, signed_identifiers)

container           - A Azure::Storage::Entity::Blob::Container instance
signed_identifiers  - A list of Azure::Storage::Entity::SignedIdentifier instances



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# File 'lib/azure/storage/blob/container.rb', line 228

def get_container_acl(name, options = {})
  # Query
  query = { "comp" => "acl" }
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  headers = options[:lease_id] ? { "x-ms-lease-id" => options[:lease_id] } : {}

  # Call
  options[:request_location_mode] = Azure::Storage::Common::RequestLocationMode::PRIMARY_OR_SECONDARY
  response = call(:get, container_uri(name, query, options), nil, headers, options)

  # Result
  container = Serialization.container_from_headers(response.headers)
  container.name = name

  signed_identifiers = nil
  signed_identifiers = Serialization.signed_identifiers_from_xml(response.body) if response.body != nil && response.body.length > 0

  return container, signed_identifiers
end

#get_container_metadata(name, options = {}) ⇒ Object

Public: Returns only user-defined metadata for the specified container.

Attributes

  • name - String. The name of the container

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :location_mode - LocationMode. Specifies the location mode used to decide

    which location the request should be sent to.

  • :lease_id - String. If specified, Get Container Metadata only succeeds if the container’s lease is

    active and matches this ID. If there is no active lease or the ID does not match, 412
(Precondition Failed) is returned.

See msdn.microsoft.com/en-us/library/azure/ee691976.aspx

Returns a Container



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# File 'lib/azure/storage/blob/container.rb', line 147

def get_container_metadata(name, options = {})
  # Query
  query = { "comp" => "metadata" }
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  headers = options[:lease_id] ? { "x-ms-lease-id" => options[:lease_id] } : {}

  # Call
  options[:request_location_mode] = Azure::Storage::Common::RequestLocationMode::PRIMARY_OR_SECONDARY
  response = call(:get, container_uri(name, query, options), nil, headers, options)

  # result
  container = Serialization.container_from_headers(response.headers)
  container.name = name
  container
end

#get_container_properties(name, options = {}) ⇒ Object

Public: Returns all properties and metadata on the container.

Attributes

  • name - String. The name of the container

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :location_mode - LocationMode. Specifies the location mode used to decide

    which location the request should be sent to.

  • :lease_id - String. If specified, Get Container Properties only succeeds if the container’s lease is

    active and matches this ID. If there is no active lease or the ID does not match, 412
(Precondition Failed) is returned.

See msdn.microsoft.com/en-us/library/azure/dd179370.aspx

Returns a Container



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# File 'lib/azure/storage/blob/container.rb', line 108

def get_container_properties(name, options = {})
  # Query
  query = {}
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  headers = options[:lease_id] ? { "x-ms-lease-id" => options[:lease_id] } : {}

  # Call
  options[:request_location_mode] = Azure::Storage::Common::RequestLocationMode::PRIMARY_OR_SECONDARY
  response = call(:get, container_uri(name, query, options), nil, headers, options)

  # result
  container = Serialization.container_from_headers(response.headers)
  container.name = name
  container
end

#list_blobs(name, options = {}) ⇒ Object

Public: Get a list of Blobs from the server

Attributes

  • name - String. The name of the container to list blobs for.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :prefix - String. Filters the results to return only blobs

    whose name begins with the specified prefix. (optional)

  • :delimiter - String. When the request includes this parameter, the operation

    returns a BlobPrefix element in the response body that acts as a
placeholder for all blobs whose names begin with the same substring
up to the appearance of the delimiter character. The delimiter may
be a single character or a string.

  • :marker - String. An identifier that specifies the portion of the

    list to be returned. This value comes from the property
Azure::Storage::Common::EnumerationResults.continuation_token when
there are more blobs available than were returned. The
marker value may then be used here to request the next set
of list items. (optional)

  • :max_results - Integer. Specifies the maximum number of blobs to return.

    If max_results is not specified, or is a value greater than
5,000, the server will return up to 5,000 items. If it is set
to a value less than or equal to zero, the server will return
status code 400 (Bad Request). (optional)

  • :metadata - Boolean. Specifies whether or not to return the blob metadata.

    (optional, Default=false)

  • :snapshots - Boolean. Specifies that snapshots should be included in the

    enumeration. Snapshots are listed from oldest to newest in the
response. (optional, Default=false)

  • :uncomittedblobs - Boolean. Specifies that blobs for which blocks have been uploaded,

    but which have not been committed using put_block_list, be included
in the response. (optional, Default=false)

  • :copy - Boolean. Specifies that metadata related to any current or previous

    copy_blob operation should be included in the response.
(optional, Default=false)

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :location_mode - LocationMode. Specifies the location mode used to decide

    which location the request should be sent to.

NOTE: Metadata requested with the :metadata parameter must have been stored in accordance with the naming restrictions imposed by the 2009-09-19 version of the Blob service. Beginning with that version, all metadata names must adhere to the naming conventions for C# identifiers.

See: msdn.microsoft.com/en-us/library/azure/dd135734.aspx

Any metadata with invalid names which were previously stored, will be returned with the key “x-ms-invalid-name” in the metadata hash. This may contain multiple values and be an Array (vs a String if it only contains a single value).

Returns an Azure::Storage::Common::EnumerationResults



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# File 'lib/azure/storage/blob/container.rb', line 602

def list_blobs(name, options = {})
  # Query
  query = { "comp" => "list" }
  query["prefix"] = options[:prefix].gsub(/\\/, "/") if options[:prefix]
  query["delimiter"] = options[:delimiter] if options[:delimiter]
  query["marker"] = options[:marker] if options[:marker]
  query["maxresults"] = options[:max_results].to_s if options[:max_results]
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  included_datasets = []
  included_datasets.push("metadata") if options[:metadata] == true
  included_datasets.push("snapshots") if options[:snapshots] == true
  included_datasets.push("uncommittedblobs") if options[:uncommittedblobs] == true
  included_datasets.push("copy") if options[:copy] == true

  query["include"] = included_datasets.join "," if included_datasets.length > 0

  # Scheme + path
  options[:request_location_mode] = Azure::Storage::Common::RequestLocationMode::PRIMARY_OR_SECONDARY
  uri = container_uri(name, query, options)

  # Call
  response = call(:get, uri, nil, {}, options)

  # Result
  if response.success?
    Serialization.blob_enumeration_results_from_xml(response.body)
  else
    response.exception
  end
end

#release_container_lease(container, lease, options = {}) ⇒ Object

Public: Releases the lease. The lease may be released if the lease ID specified on the request matches that associated with the container. Releasing the lease allows another client to immediately acquire the lease for the container as soon as the release is complete.

Attributes

  • container - String. The container name.

  • lease - String. The lease id.

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :if_modified_since - String. A DateTime value. Specify this conditional header to release the lease

    only if the container has been modified since the specified date/time. If the container has not been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_unmodified_since - String. A DateTime value. Specify this conditional header to release the lease

    only if the container has not been modified since the specified date/time. If the container has been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_match - String. An ETag value. Specify an ETag value for this conditional header to release the lease

    only if the container's ETag value matches the value specified. If the values do not match,
the Blob service returns status code 412 (Precondition Failed).

  • :if_none_match - String. An ETag value. Specify an ETag value for this conditional header to release the lease

    only if the container's ETag value does not match the value specified. If the values are identical,
the Blob service returns status code 412 (Precondition Failed).

  • :origin - String. Optional. Specifies the origin from which the request is issued. The presence of this header results

    in cross-origin resource sharing headers on the response.

See msdn.microsoft.com/en-us/library/azure/ee691972.aspx

Returns nil on success



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# File 'lib/azure/storage/blob/container.rb', line 490

def release_container_lease(container, lease, options = {})
  release_lease container, nil, lease, options
end

#renew_container_lease(container, lease, options = {}) ⇒ Object

Public: Renews the lease. The lease can be renewed if the lease ID specified on the request matches that associated with the container. Note that the lease may be renewed even if it has expired as long as the container has not been modified or leased again since the expiration of that lease. When you renew a lease, the lease duration clock resets.

Attributes

  • container - String. The container name.

  • lease - String. The lease id

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :if_modified_since - String. A DateTime value. Specify this conditional header to renew the lease

    only if the container has been modified since the specified date/time. If the container has not been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_unmodified_since - String. A DateTime value. Specify this conditional header to renew the lease

    only if the container has not been modified since the specified date/time. If the container has been modified,
the Blob service returns status code 412 (Precondition Failed).

  • :if_match - String. An ETag value. Specify an ETag value for this conditional header to renew the lease

    only if the container's ETag value matches the value specified. If the values do not match,
the Blob service returns status code 412 (Precondition Failed).

  • :if_none_match - String. An ETag value. Specify an ETag value for this conditional header to renew the lease

    only if the container's ETag value does not match the value specified. If the values are identical,
the Blob service returns status code 412 (Precondition Failed).

  • :origin - String. Optional. Specifies the origin from which the request is issued. The presence of this header results

    in cross-origin resource sharing headers on the response.

See msdn.microsoft.com/en-us/library/azure/ee691972.aspx

Returns the renewed lease id



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# File 'lib/azure/storage/blob/container.rb', line 416

def renew_container_lease(container, lease, options = {})
  renew_lease container, nil, lease, options
end

#set_container_acl(name, public_access_level, options = {}) ⇒ Object

Public: Sets the ACL and any container-level access policies for the container.

Attributes

  • name - String. The name of the container

  • public_access_level - String. The container public access level

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :signed_identifiers - Array. A list of Azure::Storage::Entity::SignedIdentifier instances (optional)

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :lease_id - String. If specified, Set Container ACL only succeeds if the container’s lease is

    active and matches this ID. If there is no active lease or the ID does not match, 412
(Precondition Failed) is returned.

See msdn.microsoft.com/en-us/library/azure/dd179391.aspx

Returns a tuple of (container, signed_identifiers)

  • container - A Azure::Storage::Entity::Blob::Container instance

  • signed_identifiers - A list of Azure::Storage::Entity::SignedIdentifier instances



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# File 'lib/azure/storage/blob/container.rb', line 274

def set_container_acl(name, public_access_level, options = {})
  # Query
  query = { "comp" => "acl" }
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  # Scheme + path
  uri = container_uri(name, query)

  # Headers + body
  headers = {}
  headers["x-ms-blob-public-access"] = public_access_level if public_access_level && public_access_level.to_s.length > 0
  headers["x-ms-lease-id"] = options[:lease_id] if options[:lease_id]

  signed_identifiers = nil
  signed_identifiers = options[:signed_identifiers] if options[:signed_identifiers]

  body = nil
  body = Serialization.signed_identifiers_to_xml(signed_identifiers) if signed_identifiers

  # Call
  response = call(:put, uri, body, headers, options)

  # Result
  container = Serialization.container_from_headers(response.headers)
  container.name = name
  container.public_access_level = public_access_level

  return container, signed_identifiers || []
end

#set_container_metadata(name, metadata, options = {}) ⇒ Object

Public: Sets custom metadata for the container.

Attributes

  • name - String. The name of the container

  • metadata - Hash. A Hash of the metadata values

  • options - Hash. Optional parameters.

Options

Accepted key/value pairs in options parameter are:

  • :timeout - Integer. A timeout in seconds.

  • :request_id - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded

    in the analytics logs when storage analytics logging is enabled.

  • :lease_id - String. If specified, Set Container Metadata only succeeds if the container’s lease is

    active and matches this ID. If there is no active lease or the ID does not match, 412
(Precondition Failed) is returned.

See msdn.microsoft.com/en-us/library/azure/dd179362.aspx

Returns nil on success



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# File 'lib/azure/storage/blob/container.rb', line 185

def set_container_metadata(name, metadata, options = {})
  # Query
  query = { "comp" => "metadata" }
  query["timeout"] = options[:timeout].to_s if options[:timeout]

  # Headers
  headers = {}
  StorageService.add_metadata_to_headers(metadata, headers) if metadata
  headers["x-ms-lease-id"] = options[:lease_id] if options[:lease_id]

  # Call
  call(:put, container_uri(name, query), nil, headers, options)

  # Result
  nil
end