Sha256: 548f3ba3e4dc6ecb382ba6f0013f1f10ae2dfd0e81a935caf3b69c96002b0b34
Contents?: true
Size: 1.03 KB
Versions: 3
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Stored size: 1.03 KB
Contents
# encoding: utf-8
module LogStash module Filters
class SingleValueUpdate
def initialize(field, destination, fallback, lookup)
@field = field
@destination = destination
@fallback = fallback
@use_fallback = !fallback.nil? # fallback is not nil, the user set a value in the config
@lookup = lookup
end
def test_for_inclusion(event, override)
# Skip translation in case @destination field already exists and @override is disabled.
return false if event.include?(@destination) && !override
event.include?(@field)
end
def update(event)
# If source field is array use first value and make sure source value is string
source = Array(event.get(@field)).first.to_s
matched = [true, nil]
@lookup.fetch_strategy.fetch(source, matched)
if matched.first
event.set(@destination, matched.last)
elsif @use_fallback
event.set(@destination, event.sprintf(@fallback))
matched[0] = true
end
return matched.first
end
end
end end
Version data entries
3 entries across 3 versions & 1 rubygems