@Override
public Metric deserialize(
JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext)
throws JsonParseException {
JsonObject jsonObject = jsonElement.getAsJsonObject();
String name = null;
if (jsonObject.get("name") != null) name = jsonObject.get("name").getAsString();
boolean exclude_tags = false;
if (jsonObject.get("exclude_tags") != null)
exclude_tags = jsonObject.get("exclude_tags").getAsBoolean();
TreeMultimap<String, String> tags = TreeMultimap.create();
JsonElement jeTags = jsonObject.get("tags");
if (jeTags != null) {
JsonObject joTags = jeTags.getAsJsonObject();
int count = 0;
for (Map.Entry<String, JsonElement> tagEntry : joTags.entrySet()) {
String context = "tags[" + count + "]";
if (tagEntry.getKey().isEmpty())
throw new ContextualJsonSyntaxException(context, "name must not be empty");
if (tagEntry.getValue().isJsonArray()) {
for (JsonElement element : tagEntry.getValue().getAsJsonArray()) {
if (element.isJsonNull() || element.getAsString().isEmpty())
throw new ContextualJsonSyntaxException(
context + "." + tagEntry.getKey(), "value must not be null or empty");
tags.put(tagEntry.getKey(), element.getAsString());
}
} else {
if (tagEntry.getValue().isJsonNull() || tagEntry.getValue().getAsString().isEmpty())
throw new ContextualJsonSyntaxException(
context + "." + tagEntry.getKey(), "value must not be null or empty");
tags.put(tagEntry.getKey(), tagEntry.getValue().getAsString());
}
count++;
}
}
Metric ret = new Metric(name, exclude_tags, tags);
JsonElement limit = jsonObject.get("limit");
if (limit != null) ret.setLimit(limit.getAsInt());
return (ret);
}
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);
}
