examples/scripts/lua/heads_or_tails.lua

---
---  Licensed to the Apache Software Foundation (ASF) under one or more
---  contributor license agreements.  See the NOTICE file distributed with
---  this work for additional information regarding copyright ownership.
---  The ASF licenses this file to You under the Apache License, Version 2.0
---  (the "License"); you may not use this file except in compliance with
---  the License.  You may obtain a copy of the License at
---
---      http://www.apache.org/licenses/LICENSE-2.0
---
---  Unless required by applicable law or agreed to in writing, software
---  distributed under the License is distributed on an "AS IS" BASIS,
---  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
---  See the License for the specific language governing permissions and
---  limitations under the License.
---

math.randomseed(os.time())

function onTrigger(context, session)
    flow_file = session:create()

    if flow_file ~= nil then
        if math.random() > 0.5 then
            session:transfer(flow_file, REL_SUCCESS)
        else
            session:transfer(flow_file, REL_FAILURE)
        end
    end
end