Class: Datafile::FileDataset

Inherits:
DatasetNode show all
Defined in:
lib/datafile/workers/file/dataset.rb

Constant Summary collapse

@@registry =

read dataset from file(system)

nil

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DatasetNode

#name, #opts, #setup

Constructor Details

#initialize(dataset) ⇒ FileDataset

Returns a new instance of FileDataset.



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# File 'lib/datafile/workers/file/dataset.rb', line 18

def initialize( dataset )
  super( dataset )
end

Class Method Details

.registry ⇒ Object 



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# File 'lib/datafile/workers/file/dataset.rb', line 10

def self.registry
  ## use ||=  why, why not??  - add Registry as nested class, why, why not ??
  if @@registry.nil?
    @@registry = FileDatasetRegistry.new
  end
  @@registry
end

Instance Method Details

#dump ⇒ Object 



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# File 'lib/datafile/workers/file/dataset.rb', line 37

def dump
  ## for debuggin dump dataset  -- todo (also check if folder exits ??)
  puts "dataset '#{name}' opts=#{opts.to_json}"     ## use opts.inspect instead of to_json - why? why not?
  puts "  repo-dir '#{repo_dir}'"
end

#repo_dir ⇒ Object

check: use (rename to) include dir (or local_repo_dir) - why, why not ???



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# File 'lib/datafile/workers/file/dataset.rb', line 22

def repo_dir     ### check: use (rename to) include dir (or local_repo_dir) - why, why not ??? 
  ## note: for easy testing allow "in situ" datasets
  ##   e.g.  ./ (e.g. mu-mauritius)  is openfootball/mu-mauritius
  ## split name in org/user + project (e.g. openfootball/at-austria)
  parts = name.split( '/' )

  basename = parts[1]
  if File.basename( Dir.getwd ) == basename
    puts "  bingo!! working folder >#{basename}< matches dataset"
    return Dir.getwd     ## assume working directory/folder is repo dir
  end

  registry.lookup( name )
end