This commit is contained in:
Looly 2023-03-08 23:36:21 +08:00
parent 1960e1ef2a
commit e215f22292
7 changed files with 85 additions and 43 deletions

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@ -1,6 +1,7 @@
package cn.hutool.core.date;
import cn.hutool.core.date.format.GlobalCustomFormat;
import cn.hutool.core.lang.func.LambdaUtil;
import cn.hutool.core.text.StrUtil;
import cn.hutool.core.util.ObjUtil;
@ -346,19 +347,11 @@ public class TimeUtil extends TemporalAccessorUtil {
/**
* 格式化时间函数
*
* @param dateTimeFormatter {@link DateTimeFormatter}
* @return 格式化时间的函数
*/
public static Function<LocalDateTime, String> formatTimeFunction(DateTimeFormatter dateTimeFormatter) {
return time -> format(time, dateTimeFormatter);
}
/**
* 格式化日期函数
*
* @return 格式化时间的函数
*/
public static Function<LocalDate, String> formatDateFunction(DateTimeFormatter dateTimeFormatter) {
return date -> format(date, dateTimeFormatter);
public static Function<TemporalAccessor, String> formatFunc(final DateTimeFormatter dateTimeFormatter) {
return LambdaUtil.toFunction(TimeUtil::format, dateTimeFormatter);
}
/**

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@ -13,8 +13,7 @@ import java.lang.invoke.SerializedLambda;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.function.BiConsumer;
import java.util.function.Function;
import java.util.function.*;
/**
* Lambda相关工具类
@ -200,6 +199,49 @@ public class LambdaUtil {
return LambdaFactory.build(lambdaType, clazz, methodName, paramsTypes);
}
/**
* 通过自定义固定参数{@link BiFunction}转换为{@link Function}
*
* @param biFunction {@link BiFunction}
* @param param 参数
* @param <T> 参数类型
* @param <U> 参数2类型
* @param <R> 返回值类型
* @return {@link Function}
* @since 6.0.0
*/
public static <T, U, R> Function<T, R> toFunction(final BiFunction<T, U, R> biFunction, final U param) {
return (t) -> biFunction.apply(t, param);
}
/**
* 通过自定义固定参数{@link BiPredicate}转换为{@link Predicate}
*
* @param biPredicate {@link BiFunction}
* @param param 参数
* @param <T> 参数类型
* @param <U> 参数2类型
* @return {@link Predicate}
* @since 6.0.0
*/
public static <T, U> Predicate<T> toPredicate(final BiPredicate<T, U> biPredicate, final U param) {
return (t) -> biPredicate.test(t, param);
}
/**
* 通过自定义固定参数{@link BiConsumer}转换为{@link Consumer}
*
* @param biConsumer {@link BiConsumer}
* @param param 参数
* @param <T> 参数类型
* @param <U> 参数2类型
* @return {@link Consumer}
* @since 6.0.0
*/
public static <T, U> Consumer<T> toPredicate(final BiConsumer<T, U> biConsumer, final U param) {
return (t) -> biConsumer.accept(t, param);
}
//region Private methods
/**

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@ -12,6 +12,13 @@ import java.util.function.Predicate;
*/
public class PredicateUtil {
/**
* 反向条件
*
* @param predicate 条件
* @param <T> 参数类型
* @return 反向条件 {@link Predicate}
*/
public static <T> Predicate<T> negate(final Predicate<T> predicate) {
return predicate.negate();
}

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@ -10,9 +10,9 @@ import java.util.function.BinaryOperator;
/**
* SerBinaryOperator
*
* @author VampireAchao
* @since 2022/6/8
* @param <T> 参数和返回值类型
* @author VampireAchao
* @see BinaryOperator
*/
@FunctionalInterface
public interface SerBinaryOperator<T> extends BinaryOperator<T>, Serializable {
@ -44,7 +44,7 @@ public interface SerBinaryOperator<T> extends BinaryOperator<T>, Serializable {
}
/**
* Returns a {@link SerBinaryOperator} which returns the lesser of two elements
* Returns a {@code SerBinaryOperator} which returns the lesser of two elements
* according to the specified {@code Comparator}.
*
* @param <T> the type of the input arguments of the comparator
@ -59,7 +59,7 @@ public interface SerBinaryOperator<T> extends BinaryOperator<T>, Serializable {
}
/**
* Returns a {@link SerBinaryOperator} which returns the greater of two elements
* Returns a {@code SerBinaryOperator} which returns the greater of two elements
* according to the specified {@code Comparator}.
*
* @param <T> the type of the input arguments of the comparator

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@ -66,7 +66,7 @@ public interface SerConsumer<T> extends Consumer<T>, Serializable {
*/
default SerConsumer<T> andThen(final SerConsumer<? super T> after) {
Objects.requireNonNull(after);
return (T t) -> {
return (final T t) -> {
accept(t);
after.accept(t);
};

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@ -34,10 +34,10 @@ public interface SerConsumer3<P1, P2, P3> extends Serializable {
* @param p2 参数二
* @param p3 参数三
*/
default void accept(P1 p1, P2 p2, P3 p3) {
default void accept(final P1 p1, final P2 p2, final P3 p3) {
try {
accepting(p1, p2, p3);
} catch (Exception e) {
} catch (final Exception e) {
throw new UtilException(e);
}
}
@ -54,9 +54,9 @@ public interface SerConsumer3<P1, P2, P3> extends Serializable {
* operation followed by the {@code after} operation
* @throws NullPointerException if {@code after} is null
*/
default SerConsumer3<P1, P2, P3> andThen(SerConsumer3<P1, P2, P3> after) {
default SerConsumer3<P1, P2, P3> andThen(final SerConsumer3<P1, P2, P3> after) {
Objects.requireNonNull(after);
return (P1 p1, P2 p2, P3 p3) -> {
return (final P1 p1, final P2 p2, final P3 p3) -> {
accept(p1, p2, p3);
after.accept(p1, p2, p3);
};

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@ -326,9 +326,9 @@ public class TimeUtilTest {
@Test
public void formatDateFunctionTest() {
List<String> dateStrList = Stream.of("2023-03-01", "2023-03-02")
final List<String> dateStrList = Stream.of("2023-03-01", "2023-03-02")
.map(LocalDate::parse)
.map(TimeUtil.formatDateFunction(DatePattern.CHINESE_DATE_FORMATTER))
.map(TimeUtil.formatFunc(DatePattern.CHINESE_DATE_FORMATTER))
.collect(Collectors.toList());
Assert.assertEquals("2023年03月01日", dateStrList.get(0));
Assert.assertEquals("2023年03月02日", dateStrList.get(1));
@ -336,9 +336,9 @@ public class TimeUtilTest {
@Test
public void formatTimeFunctionTest() {
List<String> dateStrList = Stream.of("2023-03-01T12:23:56", "2023-03-02T12:23:56")
final List<String> dateStrList = Stream.of("2023-03-01T12:23:56", "2023-03-02T12:23:56")
.map(LocalDateTime::parse)
.map(TimeUtil.formatTimeFunction(DatePattern.CHINESE_DATE_FORMATTER))
.map(TimeUtil.formatFunc(DatePattern.CHINESE_DATE_FORMATTER))
.collect(Collectors.toList());
Assert.assertEquals("2023年03月01日", dateStrList.get(0));
Assert.assertEquals("2023年03月02日", dateStrList.get(1));