@GET("/backend/aggregate/points")
String getPoints(String content) throws IOException {
logger.debug("getPoints(): content={}", content);
PointsRequest request = ObjectMappers.readRequiredValue(mapper, content, PointsRequest.class);
List<AggregatePoint> points = aggregateDao.readAggregates(request.getFrom(), request.getTo());
StringBuilder sb = new StringBuilder();
JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
jg.writeStartObject();
jg.writeArrayFieldStart("points");
for (AggregatePoint point : points) {
jg.writeStartArray();
jg.writeNumber(point.getCaptureTime());
long durationAverage;
if (point.getTraceCount() == 0) {
durationAverage = 0;
} else {
durationAverage = point.getDurationTotal() / point.getTraceCount();
}
jg.writeNumber(durationAverage / 1000000000.0);
jg.writeNumber(point.getTraceCount());
jg.writeEndArray();
}
jg.writeEndArray();
jg.writeNumberField("fixedAggregateIntervalSeconds", fixedAggregateIntervalSeconds);
jg.writeEndObject();
jg.close();
return sb.toString();
}
@GET("/backend/aggregate/groupings")
String getGroupings(String content) throws IOException {
logger.debug("getGroupings(): content={}", content);
GroupingsRequest request =
ObjectMappers.readRequiredValue(mapper, content, GroupingsRequest.class);
List<GroupingAggregate> groupings =
aggregateDao.readGroupingAggregates(request.getFrom(), request.getTo(), request.getLimit());
return mapper.writeValueAsString(groupings);
}
/**
* Json service to read aggregate data, bound to /backend/aggregate.
*
* @author Trask Stalnaker
* @since 0.5
*/
@Singleton
@JsonService
class AggregateJsonService {
private static final Logger logger = LoggerFactory.getLogger(AggregateJsonService.class);
@ReadOnly private static final ObjectMapper mapper = ObjectMappers.create();
private final AggregateDao aggregateDao;
private final long fixedAggregateIntervalSeconds;
AggregateJsonService(AggregateDao aggregateDao, long fixedAggregateIntervalSeconds) {
this.aggregateDao = aggregateDao;
this.fixedAggregateIntervalSeconds = fixedAggregateIntervalSeconds;
}
@GET("/backend/aggregate/points")
String getPoints(String content) throws IOException {
logger.debug("getPoints(): content={}", content);
PointsRequest request = ObjectMappers.readRequiredValue(mapper, content, PointsRequest.class);
List<AggregatePoint> points = aggregateDao.readAggregates(request.getFrom(), request.getTo());
StringBuilder sb = new StringBuilder();
JsonGenerator jg = mapper.getFactory().createGenerator(CharStreams.asWriter(sb));
jg.writeStartObject();
jg.writeArrayFieldStart("points");
for (AggregatePoint point : points) {
jg.writeStartArray();
jg.writeNumber(point.getCaptureTime());
long durationAverage;
if (point.getTraceCount() == 0) {
durationAverage = 0;
} else {
durationAverage = point.getDurationTotal() / point.getTraceCount();
}
jg.writeNumber(durationAverage / 1000000000.0);
jg.writeNumber(point.getTraceCount());
jg.writeEndArray();
}
jg.writeEndArray();
jg.writeNumberField("fixedAggregateIntervalSeconds", fixedAggregateIntervalSeconds);
jg.writeEndObject();
jg.close();
return sb.toString();
}
@GET("/backend/aggregate/groupings")
String getGroupings(String content) throws IOException {
logger.debug("getGroupings(): content={}", content);
GroupingsRequest request =
ObjectMappers.readRequiredValue(mapper, content, GroupingsRequest.class);
List<GroupingAggregate> groupings =
aggregateDao.readGroupingAggregates(request.getFrom(), request.getTo(), request.getLimit());
return mapper.writeValueAsString(groupings);
}
private static class PointsRequest {
private final long from;
private final long to;
@JsonCreator
PointsRequest(@JsonProperty("from") @Nullable Long from, @JsonProperty("to") @Nullable Long to)
throws JsonMappingException {
checkRequiredProperty(from, "from");
checkRequiredProperty(to, "to");
this.from = from;
this.to = to;
}
private long getFrom() {
return from;
}
private long getTo() {
return to;
}
}
private static class GroupingsRequest {
private final long from;
private final long to;
private final int limit;
@JsonCreator
GroupingsRequest(
@JsonProperty("from") @Nullable Long from,
@JsonProperty("to") @Nullable Long to,
@JsonProperty("limit") @Nullable Integer limit)
throws JsonMappingException {
checkRequiredProperty(from, "from");
checkRequiredProperty(to, "to");
checkRequiredProperty(limit, "limit");
this.from = from;
this.to = to;
this.limit = limit;
}
private long getFrom() {
return from;
}
private long getTo() {
return to;
}
public int getLimit() {
return limit;
}
}
}