Class: AwsLambdaRuntimeInterfaceClient::TelemetryLoggingHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/aws_lambda_ric.rb

Overview

Helper class to for mutating std logger with TelemetryLog

Constant Summary collapse

ENV_VAR_TELEMETRY_LOG_FD = 
'_LAMBDA_TELEMETRY_LOG_FD'

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(telemetry_log_fd, path_to_fd = '/proc/self/fd/') ⇒ TelemetryLoggingHelper

Returns a new instance of TelemetryLoggingHelper.



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# File 'lib/aws_lambda_ric.rb', line 136

def initialize(telemetry_log_fd, path_to_fd='/proc/self/fd/')
  fd = "#{path_to_fd}#{telemetry_log_fd}"
  AwsLambdaRuntimeInterfaceClient::TelemetryLoggingHelper.telemetry_log_fd_file = File.open(fd, 'wb')
  AwsLambdaRuntimeInterfaceClient::TelemetryLoggingHelper.telemetry_log_fd_file.sync = true

  AwsLambdaRuntimeInterfaceClient::TelemetryLoggingHelper.telemetry_log_sink = TelemetryLogSink.new(file: AwsLambdaRuntimeInterfaceClient::TelemetryLoggingHelper.telemetry_log_fd_file)

  mutate_std_logger
  mutate_kernel_puts
rescue Errno::ENOENT
  # If File.open() fails, then the mutation won't happen and the default behaviour (print to stdout) will prevail
end

Class Attribute Details

.telemetry_log_fd_file ⇒ Object

Returns the value of attribute telemetry_log_fd_file.



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# File 'lib/aws_lambda_ric.rb', line 129

def telemetry_log_fd_file
  @telemetry_log_fd_file
end

.telemetry_log_sink ⇒ Object

Returns the value of attribute telemetry_log_sink.



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# File 'lib/aws_lambda_ric.rb', line 129

def telemetry_log_sink
  @telemetry_log_sink
end

Class Method Details

.close ⇒ Object 



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# File 'lib/aws_lambda_ric.rb', line 131

def close
  telemetry_log_fd_file&.close
end