コード例 #1
0
ファイル: QueryParser.java プロジェクト: rdettai/kairosdb
  public List<RollupTask> parseRollupTasks(String json)
      throws BeanValidationException, QueryException {
    List<RollupTask> tasks = new ArrayList<RollupTask>();
    JsonParser parser = new JsonParser();
    JsonArray rollupTasks = parser.parse(json).getAsJsonArray();
    for (int i = 0; i < rollupTasks.size(); i++) {
      JsonObject taskObject = rollupTasks.get(i).getAsJsonObject();
      RollupTask task = parseRollupTask(taskObject, "tasks[" + i + "]");
      task.addJson(taskObject.toString().replaceAll("\\n", ""));
      tasks.add(task);
    }

    return tasks;
  }
コード例 #2
0
ファイル: QueryParser.java プロジェクト: rdettai/kairosdb
  public RollupTask parseRollupTask(JsonObject rollupTask, String context)
      throws BeanValidationException, QueryException {
    RollupTask task = m_gson.fromJson(rollupTask.getAsJsonObject(), RollupTask.class);

    validateObject(task);

    JsonArray rollups = rollupTask.getAsJsonObject().getAsJsonArray("rollups");
    if (rollups != null) {
      for (int j = 0; j < rollups.size(); j++) {
        JsonObject rollupObject = rollups.get(j).getAsJsonObject();
        Rollup rollup = m_gson.fromJson(rollupObject, Rollup.class);

        context = context + "rollup[" + j + "]";
        validateObject(rollup, context);

        JsonObject queryObject = rollupObject.getAsJsonObject("query");
        List<QueryMetric> queries = parseQueryMetric(queryObject, context);

        for (int k = 0; k < queries.size(); k++) {
          QueryMetric query = queries.get(k);
          context += ".query[" + k + "]";
          validateHasRangeAggregator(query, context);

          // Add aggregators needed for rollups
          SaveAsAggregator saveAsAggregator =
              (SaveAsAggregator) m_aggregatorFactory.createAggregator("save_as");
          saveAsAggregator.setMetricName(rollup.getSaveAs());

          TrimAggregator trimAggregator =
              (TrimAggregator) m_aggregatorFactory.createAggregator("trim");
          trimAggregator.setTrim(TrimAggregator.Trim.LAST);

          query.addAggregator(saveAsAggregator);
          query.addAggregator(trimAggregator);
        }

        rollup.addQueries(queries);
        task.addRollup(rollup);
      }
    }

    return task;
  }
コード例 #3
0
ファイル: QueryParser.java プロジェクト: rdettai/kairosdb
  private List<QueryMetric> parseQueryMetric(JsonObject obj, String contextPrefix)
      throws QueryException, BeanValidationException {
    List<QueryMetric> ret = new ArrayList<QueryMetric>();

    Query query;
    try {
      query = m_gson.fromJson(obj, Query.class);
      validateObject(query);
    } catch (ContextualJsonSyntaxException e) {
      throw new BeanValidationException(
          new SimpleConstraintViolation(e.getContext(), e.getMessage()), "query");
    }

    JsonArray metricsArray = obj.getAsJsonArray("metrics");
    if (metricsArray == null) {
      throw new BeanValidationException(
          new SimpleConstraintViolation("metric[]", "must have a size of at least 1"),
          contextPrefix + "query");
    }

    for (int I = 0; I < metricsArray.size(); I++) {
      String context =
          (!contextPrefix.isEmpty() ? contextPrefix + "." : contextPrefix)
              + "query.metric["
              + I
              + "]";
      try {
        Metric metric = m_gson.fromJson(metricsArray.get(I), Metric.class);

        validateObject(metric, context);

        long startTime = getStartTime(query, context);
        QueryMetric queryMetric =
            new QueryMetric(startTime, query.getCacheTime(), metric.getName());
        queryMetric.setExcludeTags(metric.isExcludeTags());
        queryMetric.setLimit(metric.getLimit());

        long endTime = getEndTime(query);
        if (endTime > -1) queryMetric.setEndTime(endTime);

        if (queryMetric.getEndTime() < startTime)
          throw new BeanValidationException(
              new SimpleConstraintViolation("end_time", "must be greater than the start time"),
              context);

        queryMetric.setCacheString(query.getCacheString() + metric.getCacheString());

        JsonObject jsMetric = metricsArray.get(I).getAsJsonObject();

        JsonElement group_by = jsMetric.get("group_by");
        if (group_by != null) {
          JsonArray groupBys = group_by.getAsJsonArray();
          parseGroupBy(context, queryMetric, groupBys);
        }

        JsonElement aggregators = jsMetric.get("aggregators");
        if (aggregators != null) {
          JsonArray asJsonArray = aggregators.getAsJsonArray();
          if (asJsonArray.size() > 0)
            parseAggregators(context, queryMetric, asJsonArray, query.getTimeZone());
        }

        JsonElement plugins = jsMetric.get("plugins");
        if (plugins != null) {
          JsonArray pluginArray = plugins.getAsJsonArray();
          if (pluginArray.size() > 0) parsePlugins(context, queryMetric, pluginArray);
        }

        JsonElement order = jsMetric.get("order");
        if (order != null) queryMetric.setOrder(Order.fromString(order.getAsString(), context));

        queryMetric.setTags(metric.getTags());

        ret.add(queryMetric);
      } catch (ContextualJsonSyntaxException e) {
        throw new BeanValidationException(
            new SimpleConstraintViolation(e.getContext(), e.getMessage()), context);
      }
    }

    return (ret);
  }