[PLUGIN-1792] Enable macro for plugin config script

[psainics]

Enable macro for plugin config script

Jira : PLUGIN-1792

Description

This PR makes the plugin config script a macro.

• Demo
  

Code change

• Modified PythonEvaluator.java

[itsankit-google]

please add a check here that script is not macro before we try to compile it in JythonPythonExecutor

[psainics]

if (config.executionMode != null &&
    !config.containsMacro(Config.SCRIPT) &&
    config.executionMode.equalsIgnoreCase(EXECUTION_MODE_INTERPRETED)) 

[itsankit-google]

Please add a unit test

[psainics]

Please add a unit test

Is there api for testing macro ?

[itsankit-google]

!containsMacro(config.executionMode)

We should also throw validation exception if executionMode is null:

private static final String EXECUTION_MODE = "executionMode";
if (!containsMacro(config.EXECUTION_MODE) && Strings.isNullOrEmpty(config.executionMode)) {
.....
return;
}

if (!config.containsMacro(config.EXECUTION_MODE) && !config.containsMacro(Config.SCRIPT) &&
        config.executionMode.equalsIgnoreCase(EXECUTION_MODE_INTERPRETED)) {
      try {
        new JythonPythonExecutor(config).initialize(null);
      } catch (IOException | InterruptedException e) {
        collector.addFailure("Could not compile script: " + e.getMessage(), null)
          .withStacktrace(e.getStackTrace()).withConfigProperty(Config.SCRIPT);
      }
    }

[psainics]

Updated !