Method main

src/tools/CliQuery.java:59–103

(String[] args)

  }

  public static void main(String[] args) throws Exception {
    ArgP argp = new ArgP();
    CliOptions.addCommon(argp);
    CliOptions.addVerbose(argp);
    argp.addOption("--graph", "BASEPATH",
                   "Output data points to a set of files for gnuplot."
                   + "  The path of the output files will start with"
                   + " BASEPATH.");
    args = CliOptions.parse(argp, args);
    if (args == null) {
      usage(argp, "Invalid usage.", 1);
    } else if (args.length < 3) {
      usage(argp, "Not enough arguments.", 2);
    }

    // get a config object
    Config config = CliOptions.getConfig(argp);
    
    final TSDB tsdb = new TSDB(config);
    tsdb.checkNecessaryTablesExist().joinUninterruptibly();
    final String basepath = argp.get("--graph");
    argp = null;

    Plot plot = null;
    try {
      plot = doQuery(tsdb, args, basepath != null);
    } finally {
      try {
        tsdb.shutdown().joinUninterruptibly();
      } catch (Exception e) {
        LOG.error("Unexpected exception", e);
        System.exit(1);
      }
    }

    if (plot != null) {
      try {
        final int npoints = plot.dumpToFiles(basepath);
        LOG.info("Wrote " + npoints + " for Gnuplot");
      } catch (IOException e) {
        LOG.error("Failed to write the Gnuplot file under " + basepath, e);
        System.exit(1);
      }
    }
  }

  private static Plot doQuery(final TSDB tsdb,
                              final String args[],