Class: SnowflakeId

Inherits:
Object
  • Object
show all
Defined in:
lib/snowflake-id.rb,
lib/snowflake-id/version.rb

Overview

Provides Twitter's snowflake-encoded status ID to Time conversion

Constant Summary collapse

SNOWFLAKE_EPOCH_MILLIS = 
1288834974657
VERSION = 
"0.0.1"

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id) ⇒ SnowflakeId

Generates Snowflake object from Twitter's status ID.



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# File 'lib/snowflake-id.rb', line 12

def initialize(id)
  @id = id.to_i
end

Class Method Details

.to_snowflake(time) ⇒ Object

Converts Time object into Snowflake object.



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# File 'lib/snowflake-id.rb', line 45

def self.to_snowflake(time)
  millis = (time.to_f * 1000).to_i

  if millis < SNOWFLAKE_EPOCH_MILLIS
    raise "#{time} is before Snowflake epoch"
  end
  
  return SnowflakeId.new((millis - SNOWFLAKE_EPOCH_MILLIS) << 22)
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/snowflake-id.rb', line 38

def ==(other)
  return @id == other.id
end

#id ⇒ Object

Returns snowflake-encoded ID.



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# File 'lib/snowflake-id.rb', line 19

def id
  return @id
end

#to_s ⇒ Object

Returns string representation of ID



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# File 'lib/snowflake-id.rb', line 26

def to_s
  return @id.to_s
end

#to_time ⇒ Object

Returns Time object which is included in snowflake-encoded ID.



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# File 'lib/snowflake-id.rb', line 33

def to_time
  t = ((@id >> 22) + SNOWFLAKE_EPOCH_MILLIS) / 1000.0
  return Time.at(t)
end