Class: Ezid::BatchDownload

Inherits:
Hashie::Dash
  • Object
show all
Includes:
Hashie::Extensions::Coercion
Defined in:
lib/ezid/batch_download.rb

Constant Summary collapse

ANVL = 
"anvl".freeze
CSV = 
"csv".freeze
XML = 
"xml".freeze
FORMATS = 
[ ANVL, CSV, XML ].freeze
YES = 
"yes".freeze
NO = 
"no".freeze
BOOLEANS = 
[ YES, NO ].freeze
TEST = 
"test".freeze
REAL = 
"real".freeze
PERMANENCE = 
[ TEST, REAL ].freeze
ARK = 
"ark".freeze
DOI = 
"doi".freeze
URN = 
"urn".freeze
TYPES = 
[ ARK, DOI, URN, ].freeze
ID =

CSV Columns

"_id".freeze
MAPPED_CREATOR = 
"_mappedCreator".freeze
MAPPED_TITLE = 
"_mappedTitle".freeze
MAPPED_PUBLISHER = 
"_mappedPublisher".freeze
MAPPED_DATE = 
"_mappedDate".freeze
MAPPED_TYPE = 
"_mappedType".freeze
MAX_DOWNLOAD_TRIES = 
300
DOWNLOAD_RETRY_INTERVAL = 
1

Instance Method Summary collapse

Constructor Details

#initialize(format, args = {}) ⇒ BatchDownload

Returns a new instance of BatchDownload.



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# File 'lib/ezid/batch_download.rb', line 66

def initialize(format, args={})
  super(args.merge(format: format))
end

Instance Method Details

#download_file(path: nil) ⇒ Object 



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# File 'lib/ezid/batch_download.rb', line 86

def download_file(path: nil)
  path ||= Dir.getwd
  fullpath = File.directory?(path) ? File.join(path, download_filename) : path
  tries = 0
  begin
    tries += 1
    download = Net::HTTP.get_response(download_uri)
    download.value
  rescue Net::HTTPServerException => e
    if download.is_a?(Net::HTTPNotFound)
      if tries < MAX_DOWNLOAD_TRIES
        print "Download file not yet available (attempt #{tries} of #{MAX_DOWNLOAD_TRIES})."
        puts " Trying again in #{DOWNLOAD_RETRY_INTERVAL} second(s) ..."
        sleep DOWNLOAD_RETRY_INTERVAL
        retry
      else
        raise BatchDownloadError,
              "Maximum download attempts (#{MAX_DOWNLOAD_TRIES}) reached unsuccessfully."
      end
    else
      raise
    end
  else
    File.open(fullpath, "wb") do |f|
      f.write(download.body)
    end
    puts "File successfully download to #{fullpath}."
  end
end

#download_url ⇒ Object 



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# File 'lib/ezid/batch_download.rb', line 82

def download_url
  get_response.download_url
end

#get_response ⇒ Object 



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# File 'lib/ezid/batch_download.rb', line 74

def get_response
  @response ||= client.batch_download(params)
end

#params ⇒ Object 



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# File 'lib/ezid/batch_download.rb', line 70

def params
  to_h
end

#reload ⇒ Object 



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# File 'lib/ezid/batch_download.rb', line 78

def reload
  @response = nil
end