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6 changes: 3 additions & 3 deletions lib/logstash/codecs/fluent.rb
Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ def decode_event(data, &block)
map = entry[1]
event = LogStash::Event.new(map.merge(
LogStash::Event::TIMESTAMP => LogStash::Timestamp.at(epochtime),
"tags" => [ tag ]
"tags" => map.has_key?("tags") ? map["tags"] + [ tag ] : [ tag ]
))
yield event
end
Expand All @@ -83,7 +83,7 @@ def decode_event(data, &block)
map = entry[1]
event = LogStash::Event.new(map.merge(
LogStash::Event::TIMESTAMP => LogStash::Timestamp.at(epochtime),
"tags" => [ tag ]
"tags" => map.has_key?("tags") ? map["tags"] + [ tag ] : [ tag ]
))
yield event
end
Expand All @@ -93,7 +93,7 @@ def decode_event(data, &block)
map = data[2]
event = LogStash::Event.new(map.merge(
LogStash::Event::TIMESTAMP => LogStash::Timestamp.at(epochtime),
"tags" => [ tag ]
"tags" => map.has_key?("tags") ? map["tags"] + [ tag ] : [ tag ]
))
yield event
else
Expand Down
2 changes: 2 additions & 0 deletions spec/codecs/fluent_spec.rb
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
it "should decode without errors" do
subject.decode(message) do |event|
expect(event.get("name")).to eq("foo")
expect(event.get("tags")).to eq("mytag")
end
end

Expand All @@ -63,6 +64,7 @@

subject.decode(message) do |event|
expect(event.get("name")).to eq("foo")
expect(event.get("tags")).to eq("mytag")
count += 1
end

Expand Down