Class: Dcmgr::Models::VolumeSnapshot

Inherits:
AccountResource show all
Defined in:
lib/dcmgr/models/volume_snapshot.rb

Defined Under Namespace

Classes: RequestError

Constant Summary collapse

STATE_TYPE_REGISTERING = 
"registering"
STATE_TYPE_CREATING = 
"creating"
STATE_TYPE_AVAILABLE = 
"available"
STATE_TYPE_FAILED = 
"failed"
STATE_TYPE_DELETING = 
"deleting"
STATE_TYPE_DELETED = 
"deleted"
RECENT_TERMED_PERIOD = 
(60 * 15)

Constants inherited from BaseNew

BaseNew::LOCK_TABLES_KEY

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from AccountResource

#account

Methods inherited from BaseNew

Proxy, dataset, default_row_lock_mode=, install_data, install_data_hooks, lock!, #to_hash, unlock!, #with_timestamps?

Class Method Details

.delete_snapshot(account_id, uuid) ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 68

def self.delete_snapshot(, uuid)
  vs = self.dataset.where(:account_id => ).where(:uuid => uuid.split('-').last).first
  if vs.state.to_sym != :available
    raise RequestError, "invalid delete request"
  end
  vs.state = :deleting
  vs.save_changes
end

.store_local?(destination) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dcmgr/models/volume_snapshot.rb', line 90

def self.store_local?(destination)
  destination.nil?
end

Instance Method Details

#create_volume(account_id) ⇒ Object

create volume inherite from this snapshot for the account. limitation: inherit volume is created on same storage_node.



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 46

def create_volume()
  storage_node.create_volume(, self.size, self.canonical_uuid)
end

#delete ⇒ Object

override Sequel::Model#delete not to delete rows but to set delete flags.



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 79

def delete
  self.state = :deleted if self.state != :deleted
  self.deleted_at ||= Time.now
  self.save
end

#destination ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 64

def destination
  self.destination_key.split('@')[0]
end

#display_name ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 50

def display_name
  repository_config = Dcmgr::StorageService.snapshot_repository_config
  repository = repository_config[self.destination]
  repository['display_name']
end

#origin_volume ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 56

def origin_volume
  Volume[origin_volume_id]
end

#snapshot_filename ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 60

def snapshot_filename
  "#{self.canonical_uuid}.snap"
end

#to_api_document ⇒ Object

Hash data for API response.



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 29

def to_api_document
  h = {
    :id => self.canonical_uuid,
    :uuid => self.canonical_uuid,
    :state => self.state,
    :size => self.size,
    :origin_volume_id => self.origin_volume_id,
    :destination_id => self.destination,
    :destination_name => self.display_name, 
    :backing_store => self.storage_node.storage_type,
    :created_at => self.created_at,
    :deleted_at => self.deleted_at,
  }
end

#update_destination_key(account_id, destination_key) ⇒ Object 



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# File 'lib/dcmgr/models/volume_snapshot.rb', line 85

def update_destination_key(, destination_key)
  self.destination_key = destination_key
  self.save_changes
end