Class: Dcmgr::Models::Image

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

Overview

Metadata catalogs for bootable image file.

Constant Summary collapse

BOOT_DEV_SAN = 
1
BOOT_DEV_LOCAL = 
2

Constants inherited from BaseNew

BaseNew::LOCK_TABLES_KEY

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!, unlock!, #with_timestamps?

Instance Method Details

#after_initialize ⇒ Object 



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# File 'lib/dcmgr/models/image.rb', line 19

def after_initialize
  super
  unless self.features.is_a?(Hash) 
    self.features = {}
  end
end

#get_feature(key) ⇒ Object 



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# File 'lib/dcmgr/models/image.rb', line 82

def get_feature(key)
  self.features[key]
end

#set_feature(key, value) ⇒ Object

TODO: more proper key&value validation. Handles the feature blob column.



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# File 'lib/dcmgr/models/image.rb', line 70

def set_feature(key, value)
  case key.to_sym
  when :virtio
    self.features[:virtio] = value
  else
    raise "Unsupported feature: #{key}"
  end

  self.changed_columns << :features
  self
end

#to_api_document(lookup_account_id) ⇒ Object

note on “lookup_account_id”: the source column sometime contains the information which should not be shown to other accounts. so that the method takes an argument who is looking into then filters the data in source column accordingly.



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

def to_api_document()
  h = super()
  if self. == 
  else
    if h[:source][:type] == :http
      # do not show URI for non-owner accounts.
      h[:source][:uri] = nil
    end
  end
  h
end

#to_hash ⇒ Object 



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# File 'lib/dcmgr/models/image.rb', line 47

def to_hash
  super.merge({:source=>self.source, :description=>self.description.to_s, :features=>self.features})
end

#validate ⇒ Object 



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# File 'lib/dcmgr/models/image.rb', line 26

def validate
  super
  
  unless [BOOT_DEV_SAN, BOOT_DEV_LOCAL].member?(self.boot_dev_type)
    errors.add(:boot_dev_type, "Invalid boot dev type: #{self.boot_dev_type}")
  end
  
  unless HostNode::SUPPORTED_ARCH.member?(self.arch)
    errors.add(:arch, "Unsupported arch type: #{self.arch}")
  end
  
  # validate source
  md = self.source
  case self.boot_dev_type
  when BOOT_DEV_LOCAL
    errors.add(:source, "Unknown image URI") if md[:uri].nil? || md[:uri] == ''
  when BOOT_DEV_SAN
    errors.add(:source, "Unknown snapshot ID") if md[:snapshot_id].nil? || md[:snapshot_id] == '' || VolumeSnapshot[md[:snapshot_id]].nil?
  end
end