Class: Libis::Format::Converter::PdfMetadata

Inherits:
Base
  • Object
show all
Defined in:
lib/libis/format/converter/pdf_metadata.rb

Overview

noinspection DuplicatedCode

Instance Attribute Summary

Attributes inherited from Base

#flags, #options

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

category, #check_file_exist, inherited, #initialize, #using_temp, using_temp

Constructor Details

This class inherits a constructor from Libis::Format::Converter::Base

Class Method Details

.input_types ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 14

def self.input_types
  [:PDF]
end

.output_types(format = nil) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 18

def self.output_types(format = nil)
  return [] unless input_types.include?(format) if format
  [:PDF]
end

Instance Method Details

#author(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 27

def author(v)
  @options[:author] = v.blank? ? nil : v
end

#convert(source, target, format, opts = {}) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 43

def convert(source, target, format, opts = {})
  super

  result = nil

  unless @options.empty?
    result = convert_pdf(source, target)
    return nil unless result
  end

  result

end

#convert_pdf(source, target) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 57

def convert_pdf(source, target)

  using_temp(target) do |tmpname|
    result = Libis::Format::Tool::PdfMetadata.run(
        source, tmpname,
        @options.map {|k, v|
          if v.nil?
            nil
          else
            ["--#{k}", v.to_s]
          end}.compact.flatten
    )
    unless result[:err].empty?
      error("Pdf conversion encountered errors:\n%s", result[:err].join(join("\n")))
      next nil
    end
    tmpname
  end

end

#creator(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 31

def creator(v)
  @options[:creator] = v.blank? ? nil : v
end

#keywords(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 35

def keywords(v)
  @options[:keywords] = v.blank? ? nil : v
end

#subject(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 39

def subject(v)
  @options[:subject] = v.blank? ? nil : v
end

#title(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_metadata.rb', line 23

def title(v)
  @options[:title] = v.blank? ? nil : v
end