[jira] [Created] (GEODE-165) Add build support for generating antlr classes from grammar

["Dan Smith (JIRA)" <ji...@apache.org>]

Dan Smith created GEODE-165:
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             Summary: Add build support for generating antlr classes from grammar
                 Key: GEODE-165
                 URL: https://issues.apache.org/jira/browse/GEODE-165
             Project: Geode
          Issue Type: Bug
          Components: build
            Reporter: Dan Smith
            Assignee: Mark Bretl


The OQL engine currently uses antlr to generate some parsing classes from 

gemfire-core/src/main/java/com/gemstone/gemfire/cache/query/internal/parse/oql.g

These are the generated classes. They are currently checked into the source.
OQLLexer.java
OQLLexerTokenTypes.java
OQLLexerTokenTypes.txt
OQLParser.java

They can be generated manually by running antlr.Tool on the provided grammar.
cd gemfire-core/src/main/java/com/gemstone/gemfire/cache/query/internal/parse/
java -cp antlr.jar antlr.Tool oql.g

We should add support to the gradle build to generate these classes.

In my opinion we should also remove the checked in classes. With gradle we can configure things so that the gradle eclipse target will generate these classes and make them available to the IDE as well. Look at gemfire-core/build.gradle for how we do this with the version properties file:

sourceSets {
  main {
    output.dir(generatedResources, builtBy: 'createVersionPropertiesFile')
  }
}




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