Done ticket GEPAFINBE-3

src/main/java/net/gepafin/tendermanagement/util/DateTimeUtil.java

@@ -0,0 +1,53 @@
+package net.gepafin.tendermanagement.util;
+
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.Calendar;
+import java.util.Date;
+
+@Component
+public class DateTimeUtil {
+	
+
+	public static LocalDateTime DateServerToUTC(LocalDateTime systemDate) {
+
+		ZonedDateTime ldtZoned = systemDate.atZone(ZoneId.systemDefault());
+		LocalDateTime localDatetime = ldtZoned.withZoneSameInstant(ZoneId.of("UTC")).toLocalDateTime();
+		return localDatetime;
+	}
+
+	public static LocalDateTime getPreviousMonthDate(int month) {
+		Calendar c = Calendar.getInstance();
+		c.add(Calendar.MONTH, -month);
+		LocalDateTime conv = LocalDateTime.ofInstant(c.getTime().toInstant(), ZoneId.systemDefault());
+		return conv;
+	}
+	
+	public static Date getDateWithoutTime(LocalDateTime systemDate) {
+		ZonedDateTime zdt = systemDate.atZone(ZoneId.systemDefault());
+		Date date = Date.from(zdt.toInstant());
+		Calendar calendar = Calendar.getInstance();
+		calendar.setTime(date);
+		calendar.set(Calendar.HOUR_OF_DAY, 0);
+		calendar.set(Calendar.MINUTE, 0);
+		calendar.set(Calendar.SECOND, 0);
+		calendar.set(Calendar.MILLISECOND, 0);
+		return calendar.getTime();
+	}
+	
+	public static LocalDateTime convertDateToLocalDateTime(Date date) {
+		LocalDateTime ldt = LocalDateTime.ofInstant(date.toInstant(),
+                ZoneId.systemDefault());
+		return ldt;
+	}
+
+	
+    public static Date convertLocalDateTimeToDateUsingInstant(LocalDateTime localDateTime) {
+        return Date
+          .from(localDateTime.atZone(ZoneId.systemDefault())
+          .toInstant());
+    }
+}

src/main/java/net/gepafin/tendermanagement/util/ObjectUtils.java

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+package net.gepafin.tendermanagement.util;
+
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+public class ObjectUtils {
+
+    public static <T> void setIfNotNull(Consumer<T> setter, T value) {
+        if (value != null) {
+            setter.accept(value);
+        }
+    }
+    public static <T> void setIfUpdated(Supplier<T> getter, Consumer<T> setter, T newValue) {
+        T currentValue = getter.get();
+        if (newValue != null && !newValue.equals(currentValue)) {
+            setter.accept(newValue);
+        }
+    }
+
+}

src/main/java/net/gepafin/tendermanagement/util/Utils.java

@@ -0,0 +1,49 @@
+package net.gepafin.tendermanagement.util;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Utils {
+
+	public static final Logger log = LoggerFactory.getLogger(Utils.class);
+
+	private static final ObjectMapper mapper = new ObjectMapper()
+			.registerModule(new JavaTimeModule())
+			.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+
+	public static <T, U> U convertObject(T source, Class<U> destinationClass) {
+		try {
+			return mapper.convertValue(source, destinationClass);
+		} catch (Exception e) {
+			log.error("Error converting object: " + e.getMessage(), e);
+		}
+		return null;
+	}
+
+	public static <T, U> List<U> convertSourceListToDestinationList(List<T> sourceList, Class<U> destinationClass) {
+		try {
+			return sourceList.stream()
+					.map(source -> mapper.convertValue(source, destinationClass))
+					.collect(Collectors.toList());
+		} catch (Exception e) {
+			log.error("Error converting list: " + e.getMessage(), e);
+		}
+		return null;
+	}
+
+	public static <T, U> List<U> convertSourceToList(T source, Class<U> destinationClass) {
+		try {
+			// Convert single source object to a single-element list of destination type
+			return List.of(mapper.convertValue(source, destinationClass));
+		} catch (Exception e) {
+			log.error("Error converting single object to list: " + e.getMessage(), e);
+		}
+		return null;
+	}
+}