I am trying to read the lua file this way, but its not working. How to read
the lua files from module directory and use it in execution?
luajava.LuaState = luajava.LuaStateFactory.newLuaState()
luajava.LuaState.openLibs()
luajava.LuaState.LdoFile("common_log_format.lua");
On Wed, Apr 20, 2016 at 4:29 PM, Madhukar Thota <[email protected]>
wrote:
> Thanks Matt. This will be helpful to get started. I will definitely
> contribute back to community once i have working script. One more question,
> Can i call the lua modues in the script with require statement like this local
> lpeg = require "lpeg"?
>
> -Madhu
>
>
>
> On Wed, Apr 20, 2016 at 3:11 PM, Matt Burgess <[email protected]> wrote:
>
>> Madhu,
>>
>> I know very little about Lua, so I haven't tried making a Lua version of
>> my JSON-to-JSON scripts/blogs (funnifi.blogspot.com), but here's
>> something that works to get you started. The following Luaj script creates
>> a flow file, writes to it, adds an attribute, then transfers it to success.
>> Hopefully you can use your Lua scripts inline by calling their functions
>> and such from the OutputStreamCallback proxy (the process method below). If
>> you get something working and would like to share, I would very much
>> appreciate it!
>>
>> local writecb =
>> luajava.createProxy("org.apache.nifi.processor.io.OutputStreamCallback", {
>> process = function(outputStream)
>> outputStream:write("This is flow file content from Lua")
>> end
>> })
>> flowFile = session:create()
>> flowFile = session:putAttribute(flowFile, "lua.attrib", "Hello from Lua!")
>> flowFile = session:write(flowFile, writecb)
>> session:transfer(flowFile, REL_SUCCESS)
>>
>>
>> Regards,
>> Matt
>>
>> On Tue, Apr 19, 2016 at 1:15 PM, Madhukar Thota <[email protected]
>> > wrote:
>>
>>> Friends,
>>>
>>> Can anyone share an sample example on how to use Lua in ExecuteScript
>>> Processor? We have bunch of lua scripts which we would like to use for data
>>> processing.
>>>
>>> Any help is appreciated.
>>>
>>> Thanks
>>> Madhu
>>>
>>
>>
>
