2 Commits

Author SHA1 Message Date
825a99dab6 test: 完善 Numbers#sum(BigInteger...) 的单元测试 2025-08-20 17:02:04 +08:00
f3218420ed feat: Numbers 类新增 parseXxx 方法
`Numbers` 类新增 `parseXxx` 方法用于将字符串转为对应类型的数字,当转换失败时返回默认值。默认值允许为 `null`。
2025-08-20 17:00:37 +08:00
4 changed files with 248 additions and 132 deletions

View File

@@ -27,11 +27,11 @@ import java.time.Year;
import java.time.YearMonth; import java.time.YearMonth;
import java.time.ZoneId; import java.time.ZoneId;
import java.time.ZonedDateTime; import java.time.ZonedDateTime;
import java.time.chrono.IsoChronology;
import java.util.Calendar; import java.util.Calendar;
import java.util.Date; import java.util.Date;
import java.util.TimeZone; import java.util.TimeZone;
import com.google.common.collect.BoundType;
import com.google.common.collect.Range; import com.google.common.collect.Range;
import xyz.zhouxy.plusone.commons.time.Quarter; import xyz.zhouxy.plusone.commons.time.Quarter;
@@ -673,44 +673,6 @@ public class DateTimeTools {
return Range.closedOpen(date.atStartOfDay(zone), startOfNextDate(date, zone)); return Range.closedOpen(date.atStartOfDay(zone), startOfNextDate(date, zone));
} }
/**
* 将指定日期范围转为日期时间范围
*
* @param dateRange 日期范围
* @return 对应的日期时间范围
*/
public static Range<LocalDateTime> toDateTimeRange(Range<LocalDate> dateRange) {
BoundType lowerBoundType = dateRange.lowerBoundType();
LocalDateTime lowerEndpoint = lowerBoundType == BoundType.CLOSED
? dateRange.lowerEndpoint().atStartOfDay()
: dateRange.lowerEndpoint().plusDays(1).atStartOfDay();
BoundType upperBoundType = dateRange.upperBoundType();
LocalDateTime upperEndpoint = upperBoundType == BoundType.CLOSED
? dateRange.upperEndpoint().plusDays(1).atStartOfDay()
: dateRange.upperEndpoint().atStartOfDay();
return Range.closedOpen(lowerEndpoint, upperEndpoint);
}
/**
* 将指定日期范围转为日期时间范围
*
* @param dateRange 日期范围
* @return 对应的日期时间范围
*/
public static Range<ZonedDateTime> toDateTimeRange(Range<LocalDate> dateRange, ZoneId zone) {
BoundType lowerBoundType = dateRange.lowerBoundType();
ZonedDateTime lowerEndpoint = lowerBoundType == BoundType.CLOSED
? dateRange.lowerEndpoint().atStartOfDay(zone)
: dateRange.lowerEndpoint().plusDays(1).atStartOfDay(zone);
BoundType upperBoundType = dateRange.upperBoundType();
ZonedDateTime upperEndpoint = upperBoundType == BoundType.CLOSED
? dateRange.upperEndpoint().plusDays(1).atStartOfDay(zone)
: dateRange.upperEndpoint().atStartOfDay(zone);
return Range.closedOpen(lowerEndpoint, upperEndpoint);
}
/** /**
* 判断指定年份是否为闰年 * 判断指定年份是否为闰年
* *
@@ -718,7 +680,7 @@ public class DateTimeTools {
* @return 指定年份是否为闰年 * @return 指定年份是否为闰年
*/ */
public static boolean isLeapYear(int year) { public static boolean isLeapYear(int year) {
return Year.isLeap(year); return IsoChronology.INSTANCE.isLeapYear(year);
} }
// ================================ // ================================

View File

@@ -29,7 +29,9 @@ import javax.annotation.Nullable;
*/ */
public class Numbers { public class Numbers {
// ================================
// #region - sum // #region - sum
// ================================
/** /**
* 求和 * 求和
@@ -131,9 +133,13 @@ public class Numbers {
return BigDecimals.sum(numbers); return BigDecimals.sum(numbers);
} }
// ================================
// #endregion // #endregion
// ================================
// ================================
// #region - nullToZero // #region - nullToZero
// ================================
/** /**
* 将 {@code null} 转换为 {@code 0} * 将 {@code null} 转换为 {@code 0}
@@ -217,7 +223,122 @@ public class Numbers {
return BigDecimals.nullToZero(val); return BigDecimals.nullToZero(val);
} }
// #endregion // ================================
// #endregion - nullToZero
// ================================
// ================================
// #region - parse
// ================================
/**
* 将字符串转为对应 {@link Short},转换失败时返回 {@code defaultValue}(允许为 {@code null})。
*
* @param str 要转换的字符串
* @param defaultValue 默认值
* @return 转换结果
*/
@Nullable
public static Short parseShort(@Nullable String str, @Nullable Short defaultValue) {
if (StringTools.isBlank(str)) {
return defaultValue;
}
try {
return Short.parseShort(str);
}
catch (NumberFormatException ignore) {
// ignore
}
return defaultValue;
}
/**
* 将字符串转为 {@link Integer},转换失败时返回 {@code defaultValue}(允许为 {@code null})。
*
* @param str 要转换的字符串
* @param defaultValue 默认值
* @return 转换结果
*/
@Nullable
public static Integer parseInteger(@Nullable String str, @Nullable Integer defaultValue) {
if (StringTools.isBlank(str)) {
return defaultValue;
}
try {
return Integer.parseInt(str);
}
catch (NumberFormatException ignore) {
// ignore
}
return defaultValue;
}
/**
* 将字符串转为 {@link Long},转换失败时返回 {@code defaultValue}(允许为 {@code null})。
*
* @param str 要转换的字符串
* @param defaultValue 默认值
* @return 转换结果
*/
@Nullable
public static Long parseLong(@Nullable String str, @Nullable Long defaultValue) {
if (StringTools.isBlank(str)) {
return defaultValue;
}
try {
return Long.parseLong(str);
}
catch (NumberFormatException ignore) {
// ignore
}
return defaultValue;
}
/**
* 将字符串转为 {@link Float},转换失败时返回 {@code defaultValue}(允许为 {@code null})。
*
* @param str 要转换的字符串
* @param defaultValue 默认值
* @return 转换结果
*/
@Nullable
public static Float parseFloat(@Nullable String str, @Nullable Float defaultValue) {
if (StringTools.isBlank(str)) {
return defaultValue;
}
try {
return Float.parseFloat(str);
}
catch (NumberFormatException ignore) {
// ignore
}
return defaultValue;
}
/**
* 将字符串转为 {@link Double},转换失败时返回 {@code defaultValue}(允许为 {@code null})。
*
* @param str 要转换的字符串
* @param defaultValue 默认值
* @return 转换结果
*/
@Nullable
public static Double parseDouble(@Nullable String str, @Nullable Double defaultValue) {
if (StringTools.isBlank(str)) {
return defaultValue;
}
try {
return Double.parseDouble(str);
}
catch (NumberFormatException ignore) {
// ignore
}
return defaultValue;
}
// ================================
// #endregion - parse
// ================================
private Numbers() { private Numbers() {
throw new IllegalStateException("Utility class"); throw new IllegalStateException("Utility class");

View File

@@ -43,7 +43,6 @@ import org.junit.jupiter.api.Test;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import com.google.common.collect.BoundType;
import com.google.common.collect.Range; import com.google.common.collect.Range;
import xyz.zhouxy.plusone.commons.time.Quarter; import xyz.zhouxy.plusone.commons.time.Quarter;
@@ -84,6 +83,24 @@ class DateTimeToolsTests {
CALENDAR.setTime(DATE); CALENDAR.setTime(DATE);
} }
// Joda
static final org.joda.time.LocalDateTime JODA_LOCAL_DATE_TIME
= new org.joda.time.LocalDateTime(2024, 12, 29, 12, 58, 30, 333);
static final org.joda.time.LocalDate JODA_LOCAL_DATE = JODA_LOCAL_DATE_TIME.toLocalDate();
static final org.joda.time.LocalTime JODA_LOCAL_TIME = JODA_LOCAL_DATE_TIME.toLocalTime();
// Joda - 2024-12-29 12:58:30.333 SystemDefaultZone
static final org.joda.time.DateTimeZone JODA_SYS_ZONE = org.joda.time.DateTimeZone.getDefault();
static final org.joda.time.DateTime JODA_DATE_TIME_WITH_SYS_ZONE = JODA_LOCAL_DATE_TIME.toDateTime(JODA_SYS_ZONE);
static final org.joda.time.Instant JODA_INSTANT_WITH_SYS_ZONE = JODA_DATE_TIME_WITH_SYS_ZONE.toInstant();
static final long JODA_INSTANT_MILLIS = JODA_INSTANT_WITH_SYS_ZONE.getMillis();
// Joda - 2024-12-29 12:58:30.333 GMT+04:00
static final org.joda.time.DateTimeZone JODA_ZONE = org.joda.time.DateTimeZone.forID("GMT+04:00");
static final org.joda.time.DateTime JODA_DATE_TIME = JODA_LOCAL_DATE_TIME.toDateTime(JODA_ZONE);
static final org.joda.time.Instant JODA_INSTANT = JODA_DATE_TIME.toInstant();
static final long JODA_MILLIS = JODA_INSTANT.getMillis();
// ================================ // ================================
// #region - toDate // #region - toDate
// ================================ // ================================
@@ -92,7 +109,9 @@ class DateTimeToolsTests {
void toDate_timeMillis() { void toDate_timeMillis() {
assertNotEquals(SYS_DATE, DATE); assertNotEquals(SYS_DATE, DATE);
log.info("SYS_DATE: {}, DATE: {}", SYS_DATE, DATE); log.info("SYS_DATE: {}, DATE: {}", SYS_DATE, DATE);
assertEquals(SYS_DATE, JODA_DATE_TIME_WITH_SYS_ZONE.toDate());
assertEquals(SYS_DATE, DateTimeTools.toDate(INSTANT_MILLIS)); assertEquals(SYS_DATE, DateTimeTools.toDate(INSTANT_MILLIS));
assertEquals(DATE, JODA_DATE_TIME.toDate());
assertEquals(DATE, DateTimeTools.toDate(MILLIS)); assertEquals(DATE, DateTimeTools.toDate(MILLIS));
} }
@@ -378,7 +397,7 @@ class DateTimeToolsTests {
// ================================ // ================================
@Test @Test
void toDateTimeRange_specifiedDate() { void startDateTimeRange() {
Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(LOCAL_DATE); Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(LOCAL_DATE);
assertEquals(LOCAL_DATE.atStartOfDay(), localDateTimeRange.lowerEndpoint()); assertEquals(LOCAL_DATE.atStartOfDay(), localDateTimeRange.lowerEndpoint());
assertEquals(LocalDate.of(2024, 12, 30).atStartOfDay(), localDateTimeRange.upperEndpoint()); assertEquals(LocalDate.of(2024, 12, 30).atStartOfDay(), localDateTimeRange.upperEndpoint());
@@ -392,94 +411,6 @@ class DateTimeToolsTests {
assertFalse(zonedDateTimeRange.contains(LocalDate.of(2024, 12, 30).atStartOfDay().atZone(SYS_ZONE_ID))); assertFalse(zonedDateTimeRange.contains(LocalDate.of(2024, 12, 30).atStartOfDay().atZone(SYS_ZONE_ID)));
} }
@Test
void toDateTimeRange_dateRange_openRange() {
// (2000-01-01..2025-10-01) -> [2000-01-02T00:00..2025-10-01T00:00)
Range<LocalDate> dateRange = Range.open(
LocalDate.of(2000, 1, 1),
LocalDate.of(2025, 10, 1));
Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(dateRange);
assertEquals(BoundType.CLOSED, localDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 2, 0, 0), localDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, localDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 1, 0, 0), localDateTimeRange.upperEndpoint());
log.info(localDateTimeRange.toString());
Range<ZonedDateTime> zonedDateTimeRange = DateTimeTools.toDateTimeRange(dateRange, ZONE_ID);
assertEquals(BoundType.CLOSED, zonedDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 2, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, zonedDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 1, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.upperEndpoint());
log.info(zonedDateTimeRange.toString());
}
@Test
void toDateTimeRange_dateRange_openClosedRange() {
// (2000-01-01..2025-10-01] -> [2025-01-02T00-00..2025-10-02 00:00)
Range<LocalDate> dateRange = Range.openClosed(
LocalDate.of(2000, 1, 1),
LocalDate.of(2025, 10, 1));
Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(dateRange);
assertEquals(BoundType.CLOSED, localDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 2, 0, 0), localDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, localDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 2, 0, 0), localDateTimeRange.upperEndpoint());
log.info(localDateTimeRange.toString());
Range<ZonedDateTime> zonedDateTimeRange = DateTimeTools.toDateTimeRange(dateRange, ZONE_ID);
assertEquals(BoundType.CLOSED, zonedDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 2, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, zonedDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 2, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.upperEndpoint());
log.info(zonedDateTimeRange.toString());
}
@Test
void toDateTimeRange_dateRange_closedRange() {
// [2000-01-01..2025-10-01] -> [2025-01-01T00-00..2025-10-02 00:00)
Range<LocalDate> dateRange = Range.closed(
LocalDate.of(2000, 1, 1),
LocalDate.of(2025, 10, 1));
Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(dateRange);
assertEquals(BoundType.CLOSED, localDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 1, 0, 0), localDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, localDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 2, 0, 0), localDateTimeRange.upperEndpoint());
log.info(localDateTimeRange.toString());
Range<ZonedDateTime> zonedDateTimeRange = DateTimeTools.toDateTimeRange(dateRange, ZONE_ID);
assertEquals(BoundType.CLOSED, zonedDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 1, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, zonedDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 2, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.upperEndpoint());
log.info(zonedDateTimeRange.toString());
}
@Test
void toDateTimeRange_dateRange_closedOpenRange() {
// [2025-01-01..2025-10-01) -> [2025-01-01T00-00..2025-10-01 00:00)
Range<LocalDate> dateRange = Range.closedOpen(
LocalDate.of(2000, 1, 1),
LocalDate.of(2025, 10, 1));
Range<LocalDateTime> localDateTimeRange = DateTimeTools.toDateTimeRange(dateRange);
assertEquals(BoundType.CLOSED, localDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 1, 0, 0), localDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, localDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 1, 0, 0), localDateTimeRange.upperEndpoint());
log.info(localDateTimeRange.toString());
Range<ZonedDateTime> zonedDateTimeRange = DateTimeTools.toDateTimeRange(dateRange, ZONE_ID);
assertEquals(BoundType.CLOSED, zonedDateTimeRange.lowerBoundType());
assertEquals(LocalDateTime.of(2000, 1, 1, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.lowerEndpoint());
assertEquals(BoundType.OPEN, zonedDateTimeRange.upperBoundType());
assertEquals(LocalDateTime.of(2025, 10, 1, 0, 0).atZone(ZONE_ID), zonedDateTimeRange.upperEndpoint());
log.info(zonedDateTimeRange.toString());
}
// ================================ // ================================
// #endregion - others // #endregion - others
// ================================ // ================================

View File

@@ -26,6 +26,7 @@ import java.util.Arrays;
import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse; import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertInstanceOf; import static org.junit.jupiter.api.Assertions.assertInstanceOf;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows; import static org.junit.jupiter.api.Assertions.assertThrows;
public public
@@ -68,9 +69,16 @@ class NumbersTests {
@Test @Test
public void sum_BigIntegerArray_ReturnsCorrectSum() { public void sum_BigIntegerArray_ReturnsCorrectSum() {
BigInteger[] numbers = {new BigInteger("1"), new BigInteger("2"), new BigInteger("3")}; BigInteger[] numbers = {
new BigInteger("1"),
new BigInteger("2"),
null,
new BigInteger("3")
};
BigInteger result = Numbers.sum(numbers); BigInteger result = Numbers.sum(numbers);
assertEquals(new BigInteger("6"), result); assertEquals(new BigInteger("6"), result);
assertEquals(BigInteger.ZERO, Numbers.sum(new BigInteger[0]));
} }
@Test @Test
@@ -192,6 +200,100 @@ class NumbersTests {
assertEquals(BigDecimal.ZERO, result); assertEquals(BigDecimal.ZERO, result);
} }
/**
* Test for {@link Numbers#parseShort(String, Short)}.
*/
@Test
public void parseShort() {
assertEquals((short) 12345, Numbers.parseShort("12345", (short) 5));
assertEquals((short) 5, Numbers.parseShort("1234.5", (short) 5));
assertEquals((short) 5, Numbers.parseShort("", (short) 5));
assertEquals((short) 5, Numbers.parseShort(null, (short) 5));
assertEquals((short) 12345, Numbers.parseShort("12345", null));
assertNull(Numbers.parseShort("1234.5", null));
assertNull(Numbers.parseShort("", null));
assertNull(Numbers.parseShort(null, null));
}
/**
* Test for {@link Numbers#parseInteger(String, Integer)}.
*/
@Test
public void parseInteger() {
assertEquals(12345, Numbers.parseInteger("12345", 5));
assertEquals(5, Numbers.parseInteger("1234.5", 5));
assertEquals(5, Numbers.parseInteger("", 5));
assertEquals(5, Numbers.parseInteger(null, 5));
assertEquals(12345, Numbers.parseInteger("12345", null));
assertNull(Numbers.parseInteger("1234.5", null));
assertNull(Numbers.parseInteger("", null));
assertNull(Numbers.parseInteger(null, null));
}
/**
* Test for {@link Numbers#parseLong(String, Long)}.
*/
@Test
public void parseLong() {
assertEquals(12345L, Numbers.parseLong("12345", 5L));
assertEquals(5L, Numbers.parseLong("1234.5", 5L));
assertEquals(5L, Numbers.parseLong("", 5L));
assertEquals(5L, Numbers.parseLong(null, 5L));
assertEquals(12345L, Numbers.parseLong("12345", null));
assertNull(Numbers.parseLong("1234.5", null));
assertNull(Numbers.parseLong("", null));
assertNull(Numbers.parseLong(null, null));
}
/**
* Test for {@link Numbers#parseFloat(String, Float)}.
*/
@Test
public void parseFloat() {
assertEquals(1.2345f, Numbers.parseFloat("1.2345", 5.1f));
assertEquals(5.0f, Numbers.parseFloat("a", 5.0f));
assertEquals(5.0f, Numbers.parseFloat("-001Z.2345", 5.0f));
assertEquals(5.0f, Numbers.parseFloat("+001AB.2345", 5.0f));
assertEquals(5.0f, Numbers.parseFloat("001Z.2345", 5.0f));
assertEquals(5.0f, Numbers.parseFloat("", 5.0f));
assertEquals(5.0f, Numbers.parseFloat(null, 5.0f));
assertEquals(1.2345f, Numbers.parseFloat("1.2345", null));
assertNull(Numbers.parseFloat("a", null));
assertNull(Numbers.parseFloat("-001Z.2345", null));
assertNull(Numbers.parseFloat("+001AB.2345", null));
assertNull(Numbers.parseFloat("001Z.2345", null));
assertNull(Numbers.parseFloat("", null));
assertNull(Numbers.parseFloat(null, null));
}
/**
* Test for {@link Numbers#parseDouble(String, Double)}.
*/
@Test
public void parseDouble() {
assertEquals(1.2345d, Numbers.parseDouble("1.2345", 5.1d));
assertEquals(5.0d, Numbers.parseDouble("a", 5.0d));
assertEquals(1.2345d, Numbers.parseDouble("001.2345", 5.1d));
assertEquals(-1.2345d, Numbers.parseDouble("-001.2345", 5.1d));
assertEquals(1.2345d, Numbers.parseDouble("+001.2345", 5.1d));
assertEquals(0d, Numbers.parseDouble("000.00", 5.1d));
assertEquals(5.1d, Numbers.parseDouble("", 5.1d));
assertEquals(5.1d, Numbers.parseDouble((String) null, 5.1d));
assertEquals(1.2345d, Numbers.parseDouble("1.2345", null));
assertEquals(null, Numbers.parseDouble("a", null));
assertEquals(1.2345d, Numbers.parseDouble("001.2345", null));
assertEquals(-1.2345d, Numbers.parseDouble("-001.2345", null));
assertEquals(1.2345d, Numbers.parseDouble("+001.2345", null));
assertEquals(0d, Numbers.parseDouble("000.00", null));
assertEquals(null, Numbers.parseDouble("", null));
assertEquals(null, Numbers.parseDouble((String) null, null));
}
@Test @Test
void test_constructor_isNotAccessible_ThrowsIllegalStateException() { void test_constructor_isNotAccessible_ThrowsIllegalStateException() {
Constructor<?>[] constructors = Numbers.class.getDeclaredConstructors(); Constructor<?>[] constructors = Numbers.class.getDeclaredConstructors();