# File lib/deltacloud/helpers/blob_stream.rb, line 85
  def self.extract_blob_metadata_hash(env_hash)
    meta_array = env_hash.select{|k,v| k.match(/^HTTP[-_]X[-_]Deltacloud[-_]Blobmeta[-_]/i)}
    metadata = meta_array.inject({}){ |result, array| result[array.first.upcase] = array.last; result}
    metadata
  end