Class: Gizzard::Transformation::Op::CopyShard

Inherits:
BaseOp
  • Object
show all
Defined in:
lib/gizzard/transformation_op.rb

Constant Summary collapse

BUSY = 
1

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from BaseOp

#<=>, #eql?, #inspect, #inverse?

Constructor Details

#initialize(*shards) ⇒ CopyShard

Returns a new instance of CopyShard.



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# File 'lib/gizzard/transformation_op.rb', line 35

def initialize(*shards)
  @shards = shards
end

Instance Attribute Details

#from ⇒ Object (readonly)

Returns the value of attribute from.



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# File 'lib/gizzard/transformation_op.rb', line 32

def from
  @from
end

#shards ⇒ Object (readonly) Also known as: template

Returns the value of attribute shards.



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# File 'lib/gizzard/transformation_op.rb', line 32

def shards
  @shards
end

#to ⇒ Object (readonly)

Returns the value of attribute to.



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# File 'lib/gizzard/transformation_op.rb', line 32

def to
  @to
end

Instance Method Details

#apply(nameserver, table_id, base_id, table_prefix, translations) ⇒ Object 



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# File 'lib/gizzard/transformation_op.rb', line 45

def apply(nameserver, table_id, base_id, table_prefix, translations)
  involved_shards(table_prefix, translations).each { |sid| nameserver.mark_shard_busy(sid, BUSY) }
  nameserver.copy_shard(involved_shards(table_prefix, translations))
end

#expand(*args) ⇒ Object 



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# File 'lib/gizzard/transformation_op.rb', line 39

def expand(*args); { :copy => [self] } end

#involved_shards(table_prefix, translations) ⇒ Object 



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# File 'lib/gizzard/transformation_op.rb', line 41

def involved_shards(table_prefix, translations)
  shards.map{|s| s.to_shard_id(table_prefix, translations)}
end