Inquiry monitoring history count by time

Author: Dokyeongyun

src/main/java/root/core/usecase/constracts/ReportUsecase.java

@@ -12,4 +12,7 @@ <T extends MonitoringResult> List<T> getMonitoringReportData(Class<T> clazz, Str
 
 	<T extends MonitoringResult> Map<String, List<T>> getMonitoringReportDataByTime(Class<T> clazz, String alias,
 			FileSize unit, int round, String inquiryDate);
+
+	<T extends MonitoringResult> Map<Integer, Long> getMonitoringReportCountByTime(Class<T> clazz, String alias,
+			FileSize unit, int round, String inquiryDate);
 }

src/main/java/root/core/usecase/implement/ReportUsecaseImpl.java

@@ -1,6 +1,7 @@
 package root.core.usecase.implement;
 
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.stream.Collectors;
 
@@ -9,6 +10,7 @@
 import root.core.repository.constracts.ReportRepository;
 import root.core.usecase.constracts.ReportUsecase;
 import root.utils.CsvUtils;
+import root.utils.DateUtils;
 import root.utils.UnitUtils.FileSize;
 
 @Slf4j
@@ -52,4 +54,23 @@ public <T extends MonitoringResult> Map<String, List<T>> getMonitoringReportData
 						Collectors.mapping(m -> m, Collectors.toList())));
 	}
 
+	@Override
+	public <T extends MonitoringResult> Map<Integer, Long> getMonitoringReportCountByTime(Class<T> clazz,
+			String alias, FileSize unit, int round, String inquiryDate) {
+		
+		Map<Integer, Long> result = getMonitoringReportDataByTime(clazz, alias, unit, round, inquiryDate)
+				.keySet()
+				.stream()
+				.collect(Collectors.groupingBy(
+						m -> Integer.parseInt(DateUtils.convertDateFormat("yyyyMMddHHmmss", "HH", m, Locale.KOREA)),
+						Collectors.counting()));
+
+		for (int i = 0; i < 24; i++) {
+			if (!result.containsKey(i)) {
+				result.put(i, 0L);
+			}
+		}
+
+		return result;
+	}
 }