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Contents
# encoding: utf-8
require "logstash/namespace"
require "logstash/util"
module LogStash::Util
# Decorators provides common manipulation on the event data.
module Decorators
extend self
@logger = Cabin::Channel.get(LogStash)
# fields is a hash of field => value
# where both `field` and `value` can use sprintf syntax.
def add_fields(fields,event, pluginname)
fields.each do |field, value|
field = event.sprintf(field)
value = Array(value)
value.each do |v|
v = event.sprintf(v)
if event.include?(field)
# note below that the array field needs to be updated then reassigned to the event.
# this is important because a construct like event[field] << v will not work
# in the current Java event implementation. see https://github.com/elastic/logstash/issues/4140
a = Array(event.get(field))
a << v
event.set(field, a)
else
event.set(field, v)
end
@logger.debug? and @logger.debug("#{pluginname}: adding value to field", :field => field, :value => value)
end
end
end
# tags is an array of string. sprintf syntax can be used.
def add_tags(tags, event, pluginname)
tags.each do |tag|
tag = event.sprintf(tag)
@logger.debug? and @logger.debug("#{pluginname}: adding tag", :tag => tag)
# note below that the tags array field needs to be updated then reassigned to the event.
# this is important because a construct like event["tags"] << tag will not work
# in the current Java event implementation. see https://github.com/elastic/logstash/issues/4140
tags = event.get("tags") || []
tags << tag
event.set("tags", tags)
end
end
end # module LogStash::Util::Decorators
end # module LogStash::Util
Version data entries
11 entries across 11 versions & 1 rubygems