public final File getModelDir() {
        if ((modelDir == null) && (modelPath != null)) {
            modelDir = Utils4J.getCanonicalFile(new File(modelPath));
        }
        return modelDir;
    }
public final File getModelDir() {
        if ((modelDir == null) && (modelPath != null)) {
            modelDir = Utils4J.getCanonicalFile(new File(modelPath));
        }
        return modelDir;
    }
public final File getModelDir ( ) { if ( ( modelDir == null ) && ( modelPath != null ) ) { modelDir = Utils4J . getCanonicalFile ( new File ( modelPath ) ) ; } return modelDir ; }
Returns the model directory.

@return Model directory or NULL.
Returns the model directory .