I maintain a Zeppelin interpreter for the Apache Metron [1] project. The interpreter [2] currently supports Zeppelin 0.7.3.
The interpreter does not work when run against 0.8.0. Some of the Interpreter methods have changed which causes 0.8.0 to be a breaking change. I updated the interpreter with the method signature changes so that it works in 0.8.0. Unfortunately, when trying to run it against 0.7.3, it also doesn't work. Obviously because of the signature changes. java.lang.NoSuchMethodError: org.apache.metron.stellar.zeppelin.StellarInterpreter.getProperties()Ljava/util/Properties; at org.apache.metron.stellar.zeppelin.StellarInterpreter.open(StellarInterpreter.java:78) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:70) at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:491) Does anyone have advice on how I can update the interpreter to be backwards compatible with 0.7.3, but also support 0.8.0? I suppose I could use the Reflection API to see which methods are available, but that seems a bit yucky. Is there a recommended way to be able to maintain backwards compatibility? -- [1] http://metron.apache.org/ [2] https://github.com/apache/metron/tree/master/metron-stellar/stellar-zeppelin
