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eu.lunisolar.magma.func.operator.binary.LFltBinaryOperator Maven / Gradle / Ivy
/*
* This file is part of "lunisolar-magma".
*
* (C) Copyright 2014-2019 Lunisolar (http://lunisolar.eu/).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package eu.lunisolar.magma.func.operator.binary;
import javax.annotation.Nonnull; // NOSONAR
import javax.annotation.Nullable; // NOSONAR
import java.util.Comparator; // NOSONAR
import java.util.Objects; // NOSONAR
import eu.lunisolar.magma.basics.*; //NOSONAR
import eu.lunisolar.magma.basics.builder.*; // NOSONAR
import eu.lunisolar.magma.basics.exceptions.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.aType.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.type.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.domain.*; // NOSONAR
import eu.lunisolar.magma.func.IA;
import eu.lunisolar.magma.func.SA;
import eu.lunisolar.magma.func.*; // NOSONAR
import eu.lunisolar.magma.func.tuple.*; // NOSONAR
import java.util.function.*; // NOSONAR
import java.util.*; // NOSONAR
import java.lang.reflect.*;
import eu.lunisolar.magma.func.action.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.bi.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.obj.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.tri.*; // NOSONAR
import eu.lunisolar.magma.func.function.*; // NOSONAR
import eu.lunisolar.magma.func.function.conversion.*; // NOSONAR
import eu.lunisolar.magma.func.function.from.*; // NOSONAR
import eu.lunisolar.magma.func.function.to.*; // NOSONAR
import eu.lunisolar.magma.func.operator.binary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.ternary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.unary.*; // NOSONAR
import eu.lunisolar.magma.func.predicate.*; // NOSONAR
import eu.lunisolar.magma.func.supplier.*; // NOSONAR
/**
* Non-throwing functional interface (lambda) LFltBinaryOperator for Java 8.
*
* Type: operator
*
* Domain (lvl: 2): float a1,float a2
*
* Co-domain: float
*
*/
@FunctionalInterface
@SuppressWarnings("UnusedDeclaration")
public interface LFltBinaryOperator extends MetaOperator, MetaInterface.NonThrowing, Codomain, Domain2 { // NOSONAR
String DESCRIPTION = "LFltBinaryOperator: float applyAsFlt(float a1,float a2)";
// float applyAsFlt(float a1,float a2) ;
default float applyAsFlt(float a1, float a2) {
// return nestingApplyAsFlt(a1,a2);
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.nestCheckedAndThrow(e);
}
}
/**
* Implement this, but call applyAsFlt(float a1,float a2)
*/
float applyAsFltX(float a1, float a2) throws Throwable;
default float tupleApplyAsFlt(LFltPair args) {
return applyAsFlt(args.first(), args.second());
}
/** Function call that handles exceptions according to the instructions. */
default float handlingApplyAsFlt(float a1, float a2, HandlingInstructions handling) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handler.handleOrNest(e, handling);
}
}
default LFltBinaryOperator handling(HandlingInstructions handling) {
return (a1, a2) -> handlingApplyAsFlt(a1, a2, handling);
}
default float applyAsFlt(float a1, float a2, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.wrap(e, exF, newMessage, messageParams);
}
}
default LFltBinaryOperator trying(@Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
return (a1, a2) -> applyAsFlt(a1, a2, exF, newMessage, messageParams);
}
default float applyAsFlt(float a1, float a2, @Nonnull ExWF exF) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.wrap(e, exF);
}
}
default LFltBinaryOperator trying(@Nonnull ExWF exF) {
return (a1, a2) -> applyAsFlt(a1, a2, exF);
}
default float applyAsFltThen(float a1, float a2, @Nonnull LToFltFunction handler) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
Handling.handleErrors(e);
return handler.applyAsFlt(e);
}
}
default LFltBinaryOperator tryingThen(@Nonnull LToFltFunction handler) {
return (a1, a2) -> applyAsFltThen(a1, a2, handler);
}
/** Function call that handles exceptions by always nesting checked exceptions and propagating the others as is. */
default float nestingApplyAsFlt(float a1, float a2) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.nestCheckedAndThrow(e);
}
}
/** Function call that handles exceptions by always propagating them as is, even when they are undeclared checked ones. */
default float shovingApplyAsFlt(float a1, float a2) {
try {
return this.applyAsFltX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.shoveIt(e);
}
}
static float handlingApplyAsFlt(float a1, float a2, LFltBinaryOperator func, HandlingInstructions handling) { // <-
Null.nonNullArg(func, "func");
return func.handlingApplyAsFlt(a1, a2, handling);
}
static float tryApplyAsFlt(float a1, float a2, LFltBinaryOperator func) {
Null.nonNullArg(func, "func");
return func.nestingApplyAsFlt(a1, a2);
}
static float tryApplyAsFlt(float a1, float a2, LFltBinaryOperator func, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
Null.nonNullArg(func, "func");
return func.applyAsFlt(a1, a2, exF, newMessage, messageParams);
}
static float tryApplyAsFlt(float a1, float a2, LFltBinaryOperator func, @Nonnull ExWF exF) {
Null.nonNullArg(func, "func");
return func.applyAsFlt(a1, a2, exF);
}
static float tryApplyAsFltThen(float a1, float a2, LFltBinaryOperator func, @Nonnull LToFltFunction handler) {
Null.nonNullArg(func, "func");
return func.applyAsFltThen(a1, a2, handler);
}
default float failSafeApplyAsFlt(float a1, float a2, @Nonnull LFltBinaryOperator failSafe) {
try {
return applyAsFlt(a1, a2);
} catch (Throwable e) { // NOSONAR
Handling.handleErrors(e);
return failSafe.applyAsFlt(a1, a2);
}
}
static float failSafeApplyAsFlt(float a1, float a2, LFltBinaryOperator func, @Nonnull LFltBinaryOperator failSafe) {
Null.nonNullArg(failSafe, "failSafe");
if (func == null) {
return failSafe.applyAsFlt(a1, a2);
} else {
return func.failSafeApplyAsFlt(a1, a2, failSafe);
}
}
static LFltBinaryOperator failSafe(LFltBinaryOperator func, @Nonnull LFltBinaryOperator failSafe) {
Null.nonNullArg(failSafe, "failSafe");
return (a1, a2) -> failSafeApplyAsFlt(a1, a2, func, failSafe);
}
/** Just to mirror the method: Ensures the result is not null */
default float nonNullApplyAsFlt(float a1, float a2) {
return applyAsFlt(a1, a2);
}
/** Returns description of the functional interface. */
@Nonnull
default String functionalInterfaceDescription() {
return LFltBinaryOperator.DESCRIPTION;
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void fromTo(int min_i, int max_i, float a1, float a2, LFltBinaryOperator func) {
Null.nonNullArg(func, "func");
if (min_i <= max_i) {
for (int i = min_i; i <= max_i; i++) {
func.applyAsFlt(a1, a2);
}
} else {
for (int i = min_i; i >= max_i; i--) {
func.applyAsFlt(a1, a2);
}
}
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void fromTill(int min_i, int max_i, float a1, float a2, LFltBinaryOperator func) {
Null.nonNullArg(func, "func");
if (min_i <= max_i) {
for (int i = min_i; i < max_i; i++) {
func.applyAsFlt(a1, a2);
}
} else {
for (int i = min_i; i > max_i; i--) {
func.applyAsFlt(a1, a2);
}
}
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void times(int max_i, float a1, float a2, LFltBinaryOperator func) {
if (max_i < 0)
return;
fromTill(0, max_i, a1, a2, func);
}
public default LFltUnaryOperator lShrink(LFltUnaryOperator left) {
return a2 -> applyAsFlt(left.applyAsFlt(a2), a2);
}
public default LFltUnaryOperator lShrinkc(float a1) {
return a2 -> applyAsFlt(a1, a2);
}
public static LFltUnaryOperator lShrinked(LFltUnaryOperator left, LFltBinaryOperator func) {
return func.lShrink(left);
}
public static LFltUnaryOperator lShrinkedc(float a1, LFltBinaryOperator func) {
return func.lShrinkc(a1);
}
public default LFltUnaryOperator rShrink(LFltUnaryOperator right) {
return a1 -> applyAsFlt(a1, right.applyAsFlt(a1));
}
public default LFltUnaryOperator rShrinkc(float a2) {
return a1 -> applyAsFlt(a1, a2);
}
public static LFltUnaryOperator rShrinked(LFltUnaryOperator right, LFltBinaryOperator func) {
return func.rShrink(right);
}
public static LFltUnaryOperator rShrinkedc(float a2, LFltBinaryOperator func) {
return func.rShrinkc(a2);
}
/** */
public static LFltBinaryOperator uncurry(LFltFunction func) {
return (float a1, float a2) -> func.apply(a1).applyAsFlt(a2);
}
/** Captures arguments but delays the evaluation. */
default LFltSupplier capture(float a1, float a2) {
return () -> this.applyAsFlt(a1, a2);
}
/** Creates function that always returns the same value. */
static LFltBinaryOperator constant(float r) {
return (a1, a2) -> r;
}
/** Captures single parameter function into this interface where only 1st parameter will be used. */
@Nonnull
static LFltBinaryOperator apply1stAsFlt(@Nonnull LFltUnaryOperator func) {
return (a1, a2) -> func.applyAsFlt(a1);
}
/** Captures single parameter function into this interface where only 2nd parameter will be used. */
@Nonnull
static LFltBinaryOperator apply2ndAsFlt(@Nonnull LFltUnaryOperator func) {
return (a1, a2) -> func.applyAsFlt(a2);
}
/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
@Nonnull
static LFltBinaryOperator fltBinaryOp(final @Nonnull LFltBinaryOperator lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda;
}
@Nonnull
static LFltBinaryOperator recursive(final @Nonnull LFunction selfLambda) {
final LFltBinaryOperatorSingle single = new LFltBinaryOperatorSingle();
LFltBinaryOperator func = selfLambda.apply(single);
single.target = func;
return func;
}
final class LFltBinaryOperatorSingle implements LSingle, LFltBinaryOperator {
private LFltBinaryOperator target = null;
@Override
public float applyAsFltX(float a1, float a2) throws Throwable {
return target.applyAsFltX(a1, a2);
}
@Override
public LFltBinaryOperator value() {
return target;
}
}
@Nonnull
static LFltBinaryOperator fltBinaryOpThrowing(final @Nonnull ExF exF) {
Null.nonNullArg(exF, "exF");
return (a1, a2) -> {
throw exF.produce();
};
}
@Nonnull
static LFltBinaryOperator fltBinaryOpThrowing(final String message, final @Nonnull ExMF exF) {
Null.nonNullArg(exF, "exF");
return (a1, a2) -> {
throw exF.produce(message);
};
}
static float call(float a1, float a2, final @Nonnull LFltBinaryOperator lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda.applyAsFlt(a1, a2);
}
//
//
//
/** Safe instance. That always returns the same value (as produceFloat). */
@Nonnull
static LFltBinaryOperator safe() {
return LFltBinaryOperator::produceFloat;
}
/** Safe instance supplier. Returns supplier of safe() instance. */
@Nonnull
static LSupplier safeSupplier() {
return () -> safe();
}
/** Safe wrapping. Either argument function is returned (if it is not null) or safe() instance. */
@Nonnull
static LFltBinaryOperator safe(final @Nullable LFltBinaryOperator other) {
if (other == null) {
return safe();
} else {
return other;
}
}
/** Safe supplier. Either argument supplier is returned (if it is not null) or supplier of safe() instance. */
@Nonnull
static LSupplier safeSupplier(final @Nullable LSupplier supplier) {
if (supplier == null) {
return safeSupplier();
} else {
return supplier;
}
}
//
/**
* Creates function that returns the lesser value according to the comparator.
* @see {@link java.util.function.BinaryOperator#minBy}
*/
@Nonnull
static LFltBinaryOperator minBy(@Nonnull Comparator comparator) {
Null.nonNullArg(comparator, "comparator");
return (a, b) -> comparator.compare(a, b) <= 0 ? a : b;
}
/**
* Creates function that returns the lesser value according to the comparator.
* @see {@link java.util.function.BinaryOperator#maxBy}
*/
@Nonnull
static LFltBinaryOperator maxBy(@Nonnull Comparator comparator) {
Null.nonNullArg(comparator, "comparator");
return (a, b) -> comparator.compare(a, b) >= 0 ? a : b;
}
/**
* Returns function that returns the lower value.
* @see {@link java.util.function.BinaryOperator#minBy}
*/
@Nonnull
static LFltBinaryOperator min() {
return Float::min;
}
/**
* Returns function that returns the higher value.
* @see {@link java.util.function.BinaryOperator#maxBy}
*/
@Nonnull
static LFltBinaryOperator max() {
return Float::max;
}
//
/** Allows to manipulate the domain of the function. */
@Nonnull
default LFltBinaryOperator compose(@Nonnull final LFltUnaryOperator before1, @Nonnull final LFltUnaryOperator before2) {
Null.nonNullArg(before1, "before1");
Null.nonNullArg(before2, "before2");
return (v1, v2) -> this.applyAsFlt(before1.applyAsFlt(v1), before2.applyAsFlt(v2));
}
public static LFltBinaryOperator composed(@Nonnull final LFltUnaryOperator before1, @Nonnull final LFltUnaryOperator before2, LFltBinaryOperator after) {
return after.compose(before1, before2);
}
/** Allows to manipulate the domain of the function. */
@Nonnull
default LToFltBiFunction fltBinaryOpCompose(@Nonnull final LToFltFunction before1, @Nonnull final LToFltFunction before2) {
Null.nonNullArg(before1, "before1");
Null.nonNullArg(before2, "before2");
return (v1, v2) -> this.applyAsFlt(before1.applyAsFlt(v1), before2.applyAsFlt(v2));
}
public static LToFltBiFunction composed(@Nonnull final LToFltFunction before1, @Nonnull final LToFltFunction before2, LFltBinaryOperator after) {
return after.fltBinaryOpCompose(before1, before2);
}
//
//
/** Combines two functions together in a order. */
@Nonnull
default LBiFltFunction then(@Nonnull LFltFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.apply(this.applyAsFlt(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LFltBinaryOperator thenToFlt(@Nonnull LFltUnaryOperator after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsFlt(this.applyAsFlt(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LBiFltPredicate thenToBool(@Nonnull LFltPredicate after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.test(this.applyAsFlt(a1, a2));
}
//
//
//
/** Does nothing (LFltBinaryOperator) Operator */
public static float produceFloat(float a1, float a2) {
return Function4U.defaultFloat;
}
/**
* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void forEach(IndexedRead ia1, C1 source1, IndexedRead ia2, C2 source2, LFltConsumer consumer) {
int size = ia1.size(source1);
LOiToFltFunction oiFunc1 = (LOiToFltFunction) ia1.getter();
size = Integer.min(size, ia2.size(source2));
LOiToFltFunction oiFunc2 = (LOiToFltFunction) ia2.getter();
int i = 0;
for (; i < size; i++) {
float a1 = oiFunc1.applyAsFlt(source1, i);
float a2 = oiFunc2.applyAsFlt(source2, i);
consumer.accept(this.applyAsFlt(a1, a2));
}
}
/**
* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void iterate(SequentialRead sa1, C1 source1, IndexedRead ia2, C2 source2, LFltConsumer consumer) {
Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
LPredicate testFunc1 = (LPredicate) sa1.tester();
LToFltFunction nextFunc1 = (LToFltFunction) sa1.supplier();
int size = ia2.size(source2);
LOiToFltFunction oiFunc2 = (LOiToFltFunction) ia2.getter();
int i = 0;
while (testFunc1.test(iterator1) && i < size) {
float a1 = nextFunc1.applyAsFlt(iterator1);
float a2 = oiFunc2.applyAsFlt(source2, i);
consumer.accept(this.applyAsFlt(a1, a2));
i++;
}
}
/**
* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void iterate(IndexedRead ia1, C1 source1, SequentialRead sa2, C2 source2, LFltConsumer consumer) {
int size = ia1.size(source1);
LOiToFltFunction oiFunc1 = (LOiToFltFunction) ia1.getter();
Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
LPredicate testFunc2 = (LPredicate) sa2.tester();
LToFltFunction nextFunc2 = (LToFltFunction) sa2.supplier();
int i = 0;
while (i < size && testFunc2.test(iterator2)) {
float a1 = oiFunc1.applyAsFlt(source1, i);
float a2 = nextFunc2.applyAsFlt(iterator2);
consumer.accept(this.applyAsFlt(a1, a2));
i++;
}
}
/**
* For each element (or tuple) from arguments, calls the function and passes the result to consumer.
* Thread safety, fail-fast, fail-safety of this method depends highly on the arguments.
*/
default void iterate(SequentialRead sa1, C1 source1, SequentialRead sa2, C2 source2, LFltConsumer consumer) {
Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
LPredicate testFunc1 = (LPredicate) sa1.tester();
LToFltFunction nextFunc1 = (LToFltFunction) sa1.supplier();
Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
LPredicate testFunc2 = (LPredicate) sa2.tester();
LToFltFunction nextFunc2 = (LToFltFunction) sa2.supplier();
while (testFunc1.test(iterator1) && testFunc2.test(iterator2)) {
float a1 = nextFunc1.applyAsFlt(iterator1);
float a2 = nextFunc2.applyAsFlt(iterator2);
consumer.accept(this.applyAsFlt(a1, a2));
}
}
}
