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;
}
private void parseAggregators(
String context, QueryMetric queryMetric, JsonArray aggregators, DateTimeZone timeZone)
throws QueryException, BeanValidationException {
for (int J = 0; J < aggregators.size(); J++) {
JsonObject jsAggregator = aggregators.get(J).getAsJsonObject();
JsonElement name = jsAggregator.get("name");
if (name == null || name.getAsString().isEmpty())
throw new BeanValidationException(
new SimpleConstraintViolation("aggregators[" + J + "]", "must have a name"), context);
String aggContext = context + ".aggregators[" + J + "]";
String aggName = name.getAsString();
Aggregator aggregator = m_aggregatorFactory.createAggregator(aggName);
if (aggregator == null)
throw new BeanValidationException(
new SimpleConstraintViolation(aggName, "invalid aggregator name"), aggContext);
// If it is a range aggregator we will default the start time to
// the start of the query.
if (aggregator instanceof RangeAggregator) {
RangeAggregator ra = (RangeAggregator) aggregator;
ra.setStartTime(queryMetric.getStartTime());
}
if (aggregator instanceof TimezoneAware) {
TimezoneAware ta = (TimezoneAware) aggregator;
ta.setTimeZone(timeZone);
}
if (aggregator instanceof GroupByAware) {
GroupByAware groupByAware = (GroupByAware) aggregator;
groupByAware.setGroupBys(queryMetric.getGroupBys());
}
deserializeProperties(aggContext, jsAggregator, aggName, aggregator);
validateObject(aggregator, aggContext);
queryMetric.addAggregator(aggregator);
}
}