Hi All, Is it not possible to use any Json library other than json-simple <https://code.google.com/archive/p/json-simple/> while writing custom parsers ? I could see we should implement custom parser interface MessageParser<JsonObject> in document. What if I need to use Jackson instead of json-simple ? I see Jackson performs better than json-simple in few aspects in some of the benchmark studies. I tried writing a custom parser implementing MessageParser<JsonNode> ( Jackson's JsonNode ). No compiler errors. I am getting below error when I deploy and run this parser in HCP.
2018-10-05 04:42:09.829 o.a.s.d.executor Thread-12-parserBolt-executor[5 5] [ERROR] java.lang.ClassCastException: org.codehaus.jackson.node.ObjectNode cannot be cast to org.json.simple.JSONObject at org.apache.metron.parsers.bolt.ParserBolt.execute(ParserBolt.java:187) [stormjar.jar:? ] at org.apache.storm.daemon.executor$fn__10252$tuple_action_fn__10254.invoke(executor.clj:735) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.daemon.executor$mk_task_receiver$fn__10171.invoke(executor.clj:466) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.disruptor$clojure_handler$reify__9685.onEvent(disruptor.clj:40) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:451) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:73) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.daemon.executor$fn__10252$fn__10265$fn__10320.invoke(executor.clj:855) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at org.apache.storm.util$async_loop$fn__553.invoke(util.clj:484) [storm-core-1.1.0.2.6.5.0-292.jar:1.1.0.2.6.5.0-292] at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:? ] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112] 2018-10-05 04:42:09.850 o.a.s.d.executor Thread-12-parserBolt-executor[5 5] [ERROR] -- Muhammed Irshad K T Senior Software Engineer +919447946359 irshadkt....@gmail.com Skype : muhammed.irshad.k.t
