Class: PorkyLib::Unencrypted::FileService

Inherits:
Object
  • Object
show all
Extended by:
Gem::Deprecate
Includes:
FileServiceHelper, Singleton
Defined in:
lib/porky_lib/unencrypted/file_service.rb

Defined Under Namespace

Classes: FileServiceError, FileSizeTooLargeError

Instance Method Summary collapse

Methods included from FileServiceHelper

#data_size_invalid?, #file?, #generate_file_key, #max_file_size, #max_size, #perform_upload, #read_file, #s3, #write_tempfile

Instance Method Details

#read(bucket_name, file_key, options = {}) ⇒ Object 



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# File 'lib/porky_lib/unencrypted/file_service.rb', line 14

def read(bucket_name, file_key, options = {})
  tempfile = Tempfile.new

  begin
    object = s3.bucket(bucket_name).object(file_key)
    raise FileSizeTooLargeError, "File size is larger than maximum allowed size of #{max_file_size}" if object.content_length > max_size

    object.download_file(tempfile.path, options)
  rescue Aws::Errors::ServiceError, Seahorse::Client::NetworkingError => e
    raise FileServiceError, "Attempt to download a file from S3 failed.\n#{e.message}"
  end

  tempfile.read
end

#write(file, bucket_name, options = {}) ⇒ Object

Raises:



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# File 'lib/porky_lib/unencrypted/file_service.rb', line 29

def write(file, bucket_name, options = {})
  raise FileServiceError, 'Invalid input. One or more input values is nil' if input_invalid?(file, bucket_name)

  if file?(file)
    write_file(file, bucket_name, options)
  else
    write_data(file, bucket_name, options)
  end
end

#write_data(data, bucket_name, options = {}) ⇒ Object

Raises:



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# File 'lib/porky_lib/unencrypted/file_service.rb', line 46

def write_data(data, bucket_name, options = {})
  raise FileServiceError, 'Invalid input. One or more input values is nil' if input_invalid?(data, bucket_name)
  raise FileSizeTooLargeError, "Data size is larger than maximum allowed size of #{max_file_size}" if data_size_invalid?(data)

  file_key = if options.key?(:file_name)
               options[:file_name]
             else
               generate_file_key(options)
             end
  tempfile = write_tempfile(data, file_key)

  begin
    perform_upload(bucket_name, file_key, tempfile, options)
  rescue Aws::Errors::ServiceError, Seahorse::Client::NetworkingError => e
    raise FileServiceError, "Attempt to upload a file to S3 failed.\n#{e.message}"
  end

  file_key
end

#write_file(file, bucket_name, options = {}) ⇒ Object

Raises:



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# File 'lib/porky_lib/unencrypted/file_service.rb', line 40

def write_file(file, bucket_name, options = {})
  raise FileServiceError, 'Invalid input. One or more input values is nil' if input_invalid?(file, bucket_name)

  write_data(read_file(file), bucket_name, options)
end