Calculate callsPerSec metric.

apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/query/ApplicationQuery.java

@@ -87,10 +87,13 @@ public class ApplicationQuery implements Query {
 
     public List<ServiceMetric> getSlowService(int applicationId, Duration duration,
         Integer topN) throws ParseException {
-        long start = DurationUtils.INSTANCE.exchangeToTimeBucket(duration.getStart());
-        long end = DurationUtils.INSTANCE.exchangeToTimeBucket(duration.getEnd());
+        long startTimeBucket = DurationUtils.INSTANCE.exchangeToTimeBucket(duration.getStart());
+        long endTimeBucket = DurationUtils.INSTANCE.exchangeToTimeBucket(duration.getEnd());
+
+        long startSecondTimeBucket = DurationUtils.INSTANCE.durationToSecondTimeBucket(duration.getStep(), duration.getStart());
+        long endSecondTimeBucket = DurationUtils.INSTANCE.durationToSecondTimeBucket(duration.getStep(), duration.getEnd());
 
-        return getApplicationService().getSlowService(applicationId, duration.getStep(), start, end, topN);
+        return getApplicationService().getSlowService(applicationId, duration.getStep(), startTimeBucket, endTimeBucket, startSecondTimeBucket, endSecondTimeBucket, topN);
     }
 
     public List<AppServerInfo> getServerThroughput(int applicationId, Duration duration,

apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/service/ApplicationService.java

@@ -32,6 +32,7 @@ import org.apache.skywalking.apm.collector.storage.dao.ui.INetworkAddressUIDAO;
 import org.apache.skywalking.apm.collector.storage.dao.ui.IServiceMetricUIDAO;
 import org.apache.skywalking.apm.collector.storage.table.MetricSource;
 import org.apache.skywalking.apm.collector.storage.table.register.ServerTypeDefine;
+import org.apache.skywalking.apm.collector.storage.table.register.ServiceName;
 import org.apache.skywalking.apm.collector.storage.ui.application.Application;
 import org.apache.skywalking.apm.collector.storage.ui.common.Step;
 import org.apache.skywalking.apm.collector.storage.ui.overview.ApplicationTPS;
@@ -39,18 +40,23 @@ import org.apache.skywalking.apm.collector.storage.ui.overview.ConjecturalApp;
 import org.apache.skywalking.apm.collector.storage.ui.overview.ConjecturalAppBrief;
 import org.apache.skywalking.apm.collector.storage.ui.service.ServiceMetric;
 import org.apache.skywalking.apm.collector.ui.utils.DurationUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * @author peng-yongsheng
  */
 public class ApplicationService {
 
+    private final Logger logger = LoggerFactory.getLogger(ApplicationService.class);
+
     private final IInstanceUIDAO instanceDAO;
     private final IServiceMetricUIDAO serviceMetricUIDAO;
     private final IApplicationMetricUIDAO applicationMetricUIDAO;
     private final INetworkAddressUIDAO networkAddressUIDAO;
     private final ApplicationCacheService applicationCacheService;
     private final ServiceNameCacheService serviceNameCacheService;
+    private final SecondBetweenService secondBetweenService;
 
     public ApplicationService(ModuleManager moduleManager) {
         this.instanceDAO = moduleManager.find(StorageModule.NAME).getService(IInstanceUIDAO.class);
@@ -59,6 +65,7 @@ public class ApplicationService {
         this.networkAddressUIDAO = moduleManager.find(StorageModule.NAME).getService(INetworkAddressUIDAO.class);
         this.applicationCacheService = moduleManager.find(CacheModule.NAME).getService(ApplicationCacheService.class);
         this.serviceNameCacheService = moduleManager.find(CacheModule.NAME).getService(ServiceNameCacheService.class);
+        this.secondBetweenService = new SecondBetweenService(moduleManager);
     }
 
     public List<Application> getApplications(long startSecondTimeBucket, long endSecondTimeBucket,
@@ -78,13 +85,18 @@ public class ApplicationService {
         return applications;
     }
 
-    public List<ServiceMetric> getSlowService(int applicationId, Step step, long start, long end,
-        Integer top) throws ParseException {
-        List<ServiceMetric> slowServices = serviceMetricUIDAO.getSlowService(applicationId, step, start, end, top, MetricSource.Callee);
+    public List<ServiceMetric> getSlowService(int applicationId, Step step, long startTimeBucket, long endTimeBucket,
+        long startSecondTimeBucket, long endSecondTimeBucket, Integer topN) throws ParseException {
+        List<ServiceMetric> slowServices = serviceMetricUIDAO.getSlowService(applicationId, step, startTimeBucket, endTimeBucket, topN, MetricSource.Callee);
         slowServices.forEach(slowService -> {
-            slowService.setName(serviceNameCacheService.get(slowService.getId()).getServiceName());
-            //TODO
-            slowService.setCallsPerSec(1);
+            ServiceName serviceName = serviceNameCacheService.get(slowService.getId());
+
+            try {
+                slowService.setCallsPerSec((int)(slowService.getCalls() / secondBetweenService.calculate(serviceName.getApplicationId(), startSecondTimeBucket, endSecondTimeBucket)));
+            } catch (ParseException e) {
+                logger.error(e.getMessage(), e);
+            }
+            slowService.setName(serviceName.getServiceName());
         });
         return slowServices;
     }