Method execute

src/tsd/GraphHandler.java:380–405

()

    }

    private void execute() throws IOException {
      final int nplotted = runGnuplot(query, basepath, plot);
      if (query.hasQueryStringParam("json")) {
        final HashMap<String, Object> results = new HashMap<String, Object>();
        results.put("plotted", nplotted);
        results.put("points", npoints);
        // 1.0 returned an empty inner array if the 1st hashset was null, to do
        // the same we need to fudge it with an empty set
        if (aggregated_tags != null && aggregated_tags.length > 0 &&
            aggregated_tags[0] == null) {
          aggregated_tags[0] = new HashSet<String>();
        }
        results.put("etags", aggregated_tags);
        results.put("timing", query.processingTimeMillis());
        query.sendReply(JSON.serializeToBytes(results));
        writeFile(query, basepath + ".json", JSON.serializeToBytes(results));
      } else if (query.hasQueryStringParam("png")) {
        query.sendFile(basepath + ".png", max_age);
      } else {
        query.internalError(new Exception("Should never be here!"));
      }

      // TODO(tsuna): Expire old files from the on-disk cache.
      graphlatency.add(query.processingTimeMillis());
      graphs_generated.incrementAndGet();
    }

  }