module Datadog::Utils
Utils
contains low-level utilities, typically to provide pseudo-random trace IDs.
Constants
- STRING_PLACEHOLDER
Public Class Methods
next_id()
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Return a span id
# File lib/ddtrace/utils.rb, line 12 def self.next_id reset! if was_forked? @rnd.rand(Datadog::Span::MAX_ID) end
truncate(value, size, omission = '...'.freeze)
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# File lib/ddtrace/utils.rb, line 31 def self.truncate(value, size, omission = '...'.freeze) string = value.to_s return string if string.size <= size string = string.slice(0, size - 1) if size < omission.size string[0, size] = omission else string[size - omission.size, size] = omission end string end
utf8_encode(str, options = {})
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# File lib/ddtrace/utils.rb, line 47 def self.utf8_encode(str, options = {}) str = str.to_s if options[:binary] # This option is useful for "gracefully" displaying binary data that # often contains text such as marshalled objects str.encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '') elsif str.encoding == ::Encoding::UTF_8 str else str.encode(::Encoding::UTF_8) end rescue => e Datadog.logger.debug("Error encoding string in UTF-8: #{e}") options.fetch(:placeholder, STRING_PLACEHOLDER) end
Private Class Methods
reset!()
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# File lib/ddtrace/utils.rb, line 18 def self.reset! @pid = Process.pid @rnd = Random.new end
was_forked?()
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# File lib/ddtrace/utils.rb, line 23 def self.was_forked? Process.pid != @pid end