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Versions: 35
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Contents
# frozen_string_literal: true
module Datadog
module Core
# A some-what abstract class representing a collection of headers.
#
# Use the `HeaderCollection.from_hash` function to create a header collection from a `Hash`.
# Another option is to use `HashHeaderCollection` directly.
class HeaderCollection
# Gets a single value of the header with the given name, case insensitive.
#
# @param [String] header_name Name of the header to get the value of.
# @returns [String, nil] A single value of the header, or nil if the header with
# the given name is missing from the collection.
def get(header_name)
nil
end
# Create a header collection that retrieves headers from the given Hash.
#
# This can be useful for testing or other trivial use cases.
#
# @param [Hash] hash Hash with the headers.
def self.from_hash(hash)
HashHeaderCollection.new(hash)
end
end
# A header collection implementation that looks up headers in a Hash.
class HashHeaderCollection < HeaderCollection
def initialize(hash)
super()
@hash = {}.tap do |res|
hash.each_pair { |key, value| res[key.downcase] = value }
end
end
def get(header_name)
@hash[header_name.downcase]
end
end
end
end
Version data entries
35 entries across 35 versions & 2 rubygems