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Contents
# encoding: utf-8
# This file is distributed under New Relic's license terms.
# See https://github.com/newrelic/rpm/blob/master/LICENSE for complete details.
module NewRelic
module Agent
class RulesEngine
class SegmentTermsRule
SEGMENT_PLACEHOLDER = '*'.freeze
ADJACENT_PLACEHOLDERS_REGEX = %r{((?:^|/)\*)(?:/\*)*}.freeze
ADJACENT_PLACEHOLDERS_REPLACEMENT = '\1'.freeze
attr_reader :prefix, :terms
def initialize(options)
@prefix = options['prefix']
@terms = options['terms']
@trim_range = (@prefix.size..-1)
end
def terminal?
true
end
def matches?(string)
string.start_with?(@prefix)
end
def apply(string)
rest = string[@trim_range]
leading_slash = rest.slice!(LEADING_SLASH_REGEX)
segments = rest.split(SEGMENT_SEPARATOR)
segments.map! { |s| @terms.include?(s) ? s : SEGMENT_PLACEHOLDER }
transformed_suffix = collapse_adjacent_placeholder_segments(segments)
"#{@prefix}#{leading_slash}#{transformed_suffix}"
end
def collapse_adjacent_placeholder_segments(segments)
joined = segments.join(SEGMENT_SEPARATOR)
joined.gsub!(ADJACENT_PLACEHOLDERS_REGEX, ADJACENT_PLACEHOLDERS_REPLACEMENT)
joined
end
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems