class Ocular::Logging::KafkaLogger

Most of the Logger class is copied from the Ruby Logger class source code.

Public Class Methods

new(settings=nil, kafka=nil) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 12
def initialize(settings=nil, kafka=nil)
    @level = Severity::DEBUG
    @formatter = Formatter.new

    if kafka != nil
        @kafka = kafka
    else
        #logger = Logger.new(STDOUT)
        #logger.level = Logger::DEBUG
        #settings[:client][:logger] = logger
        @kafka = Kafka.new(settings[:client])
    end
    @settings = settings

    @producer = @kafka.producer
    @semaphore = Mutex.new
end

Public Instance Methods

add(severity, message = nil, run_id = nil) { || ... } click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 61
def add(severity, message = nil, run_id = nil, &block)
    severity ||= Severity::UNKNOWN
    if severity < @level
        return true
    end

    if message.nil?
        if block_given?
            message = yield
        else
            message = progname
        end
    end

    begin
        @semaphore.synchronize do
            @kafka.deliver_message(@formatter.format_message(severity, Time.now, run_id, message), topic: @settings[:topic], partition_key: run_id)
        end
    rescue StandardError => e
        STDERR.puts "Error on producing kafka message: #{e}"
        STDERR.puts "Message was #{message}, stacktrace: #{e.backtrace.join("\n")}"
    end
end
debug(message = nil, &block) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 36
def debug(message = nil, &block)
    add(Severity::DEBUG, message, @run_id, &block)
end
Also aliased as: log
deliver_messages() click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 57
def deliver_messages
    @producer.deliver_messages
end
error(message = nil, &block) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 49
def error(message = nil, &block)
    add(Severity::ERROR, message, @run_id, &block)
end
fatal(message = nil, &block) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 53
def fatal(message = nil, &block)
    add(Severity::FATAL, message, @run_id, &block)
end
info(message = nil, &block) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 41
def info(message = nil, &block)
    add(Severity::INFO, message, @run_id, &block)
end
log(message = nil, &block)
Alias for: debug
log_cause(type, environment, run_id = nil) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 96
def log_cause(type, environment, run_id = nil)
    begin
        @semaphore.synchronize do
            @kafka.deliver_message(@formatter.format_cause(type, environment, Time.now, run_id), topic: @settings[:topic], partition_key: run_id)
        end
    rescue StandardError => e
        STDERR.puts "Error on producing kafka log_cause: #{e}"
        STDERR.puts "type: #{type}, stacktrace: #{e.backtrace.join("\n")}"                    
    end

end
log_event(property, value, run_id = nil) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 85
def log_event(property, value, run_id = nil)
    begin
        @semaphore.synchronize do
            @kafka.deliver_message(@formatter.format_event(property, value, Time.now, run_id), topic: @settings[:topic], partition_key: run_id)
        end
    rescue StandardError => e
        STDERR.puts "Error on producing kafka log_event: #{e}"
        STDERR.puts "#{property} => #{value}, stacktrace: #{e.backtrace.join("\n")}"                    
    end
end
log_timing(key, value, run_id = nil) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 108
def log_timing(key, value, run_id = nil)
    begin
        @semaphore.synchronize do
            @kafka.deliver_message(@formatter.format_event("timing:" + key, value, Time.now, run_id), topic: @settings[:topic], partition_key: run_id)
        end
    rescue StandardError => e
        STDERR.puts "Error on producing kafka log_timing: #{e}"
        STDERR.puts "Timing: #{key} => #{value}, stacktrace: #{e.backtrace.join("\n")}"

    end

end
reconnect() click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 30
def reconnect()
    @kafka = Kafka.new(@settings[:client])
    @producer = @kafka.producer
    @semaphore = Mutex.new
end
warn(message = nil, &block) click to toggle source
# File lib/ocular/logging/kafka_logger.rb, line 45
def warn(message = nil, &block)
    add(Severity::WARN, message, @run_id, &block)
end