module PipeRpc
  class Hub::Servers
    def initialize
      @servers = Hash.new{ |hash, key| raise NoServerError.new("no server #{key}") }
    end

    def add(servers)
      servers.each{ |name, server| @servers[name.to_sym] = server }
    end

    def [](name)
      @servers[name.to_sym]
    end

    def remove(name)
      @servers.delete(name.to_sym)
    end

    def registered?(name)
      @servers.has_key?(name)
    end
  end
end