Class: PDTP::Server::Transfer

Inherits:
Object
  • Object
show all
Defined in:
lib/pdtp/server/transfer.rb

Overview

stores information for the server about a specific transfer

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(taker, giver, url, chunkid, byte_range, connector_receives = true) ⇒ Transfer

Returns a new instance of Transfer.



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# File 'lib/pdtp/server/transfer.rb', line 40

def initialize(taker, giver, url, chunkid, byte_range, connector_receives = true)
  @taker, @giver, @url, @chunkid, @byte_range = taker, giver, url, chunkid, byte_range

  @verification_asked = false
  @creation_time = Time.now
  
  if connector_receives
    @connector = @taker
    @acceptor = @giver
  else
    @connector = @giver
    @acceptor = @taker
  end

  recompute_transfer_id
end

Instance Attribute Details

#acceptor ⇒ Object (readonly)

Returns the value of attribute acceptor.



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# File 'lib/pdtp/server/transfer.rb', line 28

def acceptor
  @acceptor
end

#byte_range ⇒ Object (readonly)

Returns the value of attribute byte_range.



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# File 'lib/pdtp/server/transfer.rb', line 28

def byte_range
  @byte_range
end

#chunkid ⇒ Object (readonly)

Returns the value of attribute chunkid.



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# File 'lib/pdtp/server/transfer.rb', line 27

def chunkid
  @chunkid
end

#connector ⇒ Object (readonly)

Returns the value of attribute connector.



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# File 'lib/pdtp/server/transfer.rb', line 28

def connector
  @connector
end

#creation_time ⇒ Object

Returns the value of attribute creation_time.



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# File 'lib/pdtp/server/transfer.rb', line 30

def creation_time
  @creation_time
end

#giver ⇒ Object (readonly)

Returns the value of attribute giver.



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# File 'lib/pdtp/server/transfer.rb', line 27

def giver
  @giver
end

#taker ⇒ Object (readonly)

Returns the value of attribute taker.



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# File 'lib/pdtp/server/transfer.rb', line 27

def taker
  @taker
end

#transfer_id ⇒ Object

Returns the value of attribute transfer_id.



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# File 'lib/pdtp/server/transfer.rb', line 29

def transfer_id
  @transfer_id
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/pdtp/server/transfer.rb', line 27

def url
  @url
end

#verification_asked ⇒ Object

Returns the value of attribute verification_asked.



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# File 'lib/pdtp/server/transfer.rb', line 31

def verification_asked
  @verification_asked
end

Class Method Details

.gen_transfer_id(id1, id2, url, byte_range) ⇒ Object

Generates a transfer id based on 2 client ids, a url, and a byte range



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# File 'lib/pdtp/server/transfer.rb', line 34

def self.gen_transfer_id(id1,id2,url,byte_range)
  a = id1 < id2 ? id1 : id2
  b = id1 < id2 ? id2 : id1
  "#{a}$#{b}$#{url}$#{byte_range}"
end

Instance Method Details

#debug_str ⇒ Object 



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# File 'lib/pdtp/server/transfer.rb', line 79

def debug_str
  str = ''
  str << "to_s=#{to_s}"
  str << "   taker_id=#{@taker.client_id} giver_id=#{@giver.client_id}" 
end

#failure ⇒ Object

Update internal data upon a failed transfer



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# File 'lib/pdtp/server/transfer.rb', line 71

def failure
  taker.failure self
end

#recompute_transfer_id ⇒ Object

Calculates the transfer id for this transfer based on the local data



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# File 'lib/pdtp/server/transfer.rb', line 58

def recompute_transfer_id
  id1 = connector.client_id
  id2 = acceptor.client_id
  @transfer_id = Transfer::gen_transfer_id id1, id2, @url, @byte_range
end

#success ⇒ Object

Update internal data upon a successful transfer



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# File 'lib/pdtp/server/transfer.rb', line 65

def success
  giver.success self
  taker.success self
end

#to_s ⇒ Object 



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# File 'lib/pdtp/server/transfer.rb', line 75

def to_s
  "taker=#{@taker}, giver=#{@giver}, connector=#{@connector}, acceptor=#{@acceptor}, url=#{@url}, chunk_id=#{@chunkid} range=#{@byte_range}"
end