Method: Perus::Pinger::Pinger#load_config

Defined in:
lib/perus/pinger/pinger.rb

#load_config ⇒ Object

configuration



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# File 'lib/perus/pinger/pinger.rb', line 96

def load_config
    if Pinger.options.system_id.nil?
        config_path = URI("systems/config_for_ip")
    else
        config_path = URI("systems/#{Pinger.options.system_id}/config")
    end

    config_url = (@server_uri + config_path).to_s

    # load the system config by requesting it from the perus server
    tries = 0
    json = begin
        JSON.parse(RestClient.get(config_url))
    rescue => e
        if tries < 5
            tries += 1
            sleep 2
            retry
        else
            raise e
        end 
    end

    json['metrics'] ||= []
    json['actions'] ||= []
    @system_id = json['id']

    if @system_id == 'nil'
        raise 'This system is unknown to the server'
    end

    # load metric and command modules based on the config
    json['metrics'].each do |config|
        begin
            if ::Perus::Pinger.const_defined?(config['type'])
                metric = ::Perus::Pinger.const_get(config['type'])
                @metric_errors[metric.name] ||= []
                @metrics << metric.new(config['options'])
            else
                @metric_errors[config['type']] = format_exception(e)
            end
        rescue => e
            @metric_errors[metric.name] << format_exception(e)
        end
    end

    json['actions'].each do |config|
        begin
            command = ::Perus::Pinger.const_get(config['type'])
            @actions << command.new(config['options'], config['id'])
        rescue => e
            if config['id']
                @action_results[config['id']] = format_exception(e)
            else
                puts 'Error - action does not have an associated id'
                p config
            end
        end
    end
end