Class: Rambling::Trie::Serializers::Zip

Inherits:
Serializer
  • Object
show all
Defined in:
lib/rambling/trie/serializers/zip.rb

Overview

Zip file serializer. Dumps/loads contents from ‘.zip` files. Automatically detects if zip file contains a `.marshal` or `.yml` file, or any other registered `:format => serializer` combo.

Instance Method Summary collapse

Constructor Details

#initialize(properties) ⇒ Zip

Creates a new Zip serializer.

Parameters:



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# File 'lib/rambling/trie/serializers/zip.rb', line 13

def initialize properties
  super()
  @properties = properties
end

Instance Method Details

#dump(contents, filepath) ⇒ Integer

Dumps contents and zips into a specified filepath.

Parameters:

  • contents (String) —

    the contents to dump.

  • filepath (String) —

    the filepath to dump the contents to.

Returns:

  • (Integer) —

    number of bytes written to disk.

See Also:



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# File 'lib/rambling/trie/serializers/zip.rb', line 49

def dump contents, filepath
  require 'zip'

  clean_up_tmp_files do |tmp_paths|
    ::Zip::File.open filepath, create: true do |zip|
      filename = ::File.basename filepath, '.zip'

      entry_path = path_with_random_prefix filename
      tmp_paths << entry_path

      (serializers.resolve(filename) || raise).dump contents, entry_path
      zip.add filename, entry_path
    end
  end

  ::File.size filepath
end

#load(filepath) ⇒ Nodes::Node

Unzip contents from specified filepath and load in contents from unzipped files.

Parameters:

  • filepath (String) —

    the filepath to load contents from.

Returns:

  • (Nodes::Node) —

    all contents of the unzipped loaded file.

See Also:



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# File 'lib/rambling/trie/serializers/zip.rb', line 24

def load filepath
  require 'zip'

  clean_up_tmp_files do |tmp_paths|
    ::Zip::File.open filepath do |zip|
      entry = zip.entries.first
      raise unless entry

      entry_name = entry.name
      entry_path = path_with_random_prefix entry_name
      tmp_paths << entry_path

      entry.extract ::File.basename(entry_path), destination_directory: tmp_path

      (serializers.resolve(entry_name) || raise).load entry_path
    end
  end
end