class BeerDb::ZipReader

Public Class Methods

new( name, include_path, opts = {} ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 8
def initialize( name, include_path, opts = {} )

  ## todo/fix: make include_path an opts (included in opts?) - why? why not??

  path = "#{include_path}/#{name}.zip"
  ## todo: check if zip exists

  @zip_file = Zip::File.open( path )   ## NOTE: do NOT create if file is missing; let it crash
  
  ### allow prefix (path) in name
  ###    e.g. assume all files relative to setup manifest
  ## e.g. at-austria-master/setups/all.txt or
  ##      be-belgium-master/setups/all.txt
  ##  for
  ##    setups/all.txt
  ###
  ##  will get (re)set w/ fixture/setup reader
  ##
  ## todo/fix: change/rename to @relative_path ?? - why? why not?
  @zip_prefix = ''
end

Public Instance Methods

close() click to toggle source
# File lib/beerdb/reader_zip.rb, line 31
def close
  ## todo/check: add a close method - why? why not ???
  @zip_file.close
end
create_beers_reader( name, more_attribs={} ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 66
def create_beers_reader( name, more_attribs={} )
  path = name_to_zip_entry_path( name )

  logger.debug "parsing data (beers) in zip '#{name}' (#{path})..."

  BeerReader.from_zip( @zip_file, path, more_attribs )
end
create_breweries_reader( name, more_attribs={} ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 75
def create_breweries_reader( name, more_attribs={} )
  path = name_to_zip_entry_path( name )

  logger.debug "parsing data (breweries) in zip '#{name}' (#{path})..."

  if name =~ /\(m\)/     # check for (m) mid-size/medium marker -todo- use $?? must be last?
     more_attribs[ :prod_m ] = true
  elsif name =~ /\(l\)/  # check for (l) large marker - todo - use $?? must be last?
     more_attribs[ :prod_l ] = true
  else
    ## no marker; do nothing
  end

  BreweryReader.from_zip( @zip_file, path, more_attribs )
end
create_fixture_reader( name ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 37
def create_fixture_reader( name )
  ## e.g. pass in =>  setups/all  or setups/test etc.  e.g. w/o .txt extension
  query = "**/#{name}.txt"

  ## note: returns an array of Zip::Entry
  candidates = @zip_file.glob( query )
  pp candidates

  ## use first candidates entry as match
  ## todo/fix: issue warning if more than one entries/matches!!

  ## get fullpath e.g. at-austria-master/setups/all.txt
  path = candidates[0].name
  logger.debug "  zip entry path >>#{path}<<"

  ## cut-off at-austria-master/    NOTE: includes trailing slash (if present)
  ## logger.debug "  path.size #{path.size} >>#{path}<<"
  ## logger.debug "  name.size #{name.size+4} >>#{name}<<"

  ## note: add +4 for extension (.txt)
  @zip_prefix = path[ 0...(path.size-(name.size+4)) ]
  logger.debug "  zip entry prefix >>#{@zip_prefix}<<"

  logger.info "parsing data in zip '#{name}' (#{path})..."

  FixtureReader.from_zip( @zip_file, path )
end

Private Instance Methods

name_to_zip_entry_path( name ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 108
def name_to_zip_entry_path( name )
  path = "#{name}.txt"

  real_path = path_to_real_path( path )

  # NOTE: add possible zip entry prefix path
  #          (if present includes trailing slash e.g. /)
  entry_path = "#{@zip_prefix}#{real_path}"
  entry_path
end
path_to_real_path( path ) click to toggle source
# File lib/beerdb/reader_zip.rb, line 93
def path_to_real_path( path )
  # map name to name_real_path
  # name might include !/ for virtual path (gets cut off)
  # e.g. at-austria!/w-wien/beers becomse w-wien/beers
  pos = path.index( '!/')
  if pos.nil?
    path # not found; real path is the same as name
  else
    # cut off everything until !/ e.g.
    # at-austria!/w-wien/beers becomes
    # w-wien/beers
    path[ (pos+2)..-1 ]
  end
end