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eu.lunisolar.magma.func.predicate.LBiPredicate 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.predicate;
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) LBiPredicate for Java 8.
*
* Type: predicate
*
* Domain (lvl: 2): T1 a1,T2 a2
*
* Co-domain: boolean
*
*/
@FunctionalInterface
@SuppressWarnings("UnusedDeclaration")
public interface LBiPredicate extends BiPredicate, MetaPredicate, MetaInterface.NonThrowing, Codomain, Domain2, a> { // NOSONAR
String DESCRIPTION = "LBiPredicate: boolean test(T1 a1,T2 a2)";
// boolean test(T1 a1,T2 a2) ;
default boolean test(T1 a1, T2 a2) {
// return nestingTest(a1,a2);
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.nestCheckedAndThrow(e);
}
}
/**
* Implement this, but call test(T1 a1,T2 a2)
*/
boolean testX(T1 a1, T2 a2) throws Throwable;
default boolean tupleTest(LPair args) {
return test(args.first(), args.second());
}
/** Function call that handles exceptions according to the instructions. */
default boolean handlingTest(T1 a1, T2 a2, HandlingInstructions handling) {
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handler.handleOrNest(e, handling);
}
}
default LBiPredicate handling(HandlingInstructions handling) {
return (a1, a2) -> handlingTest(a1, a2, handling);
}
default boolean test(T1 a1, T2 a2, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.wrap(e, exF, newMessage, messageParams);
}
}
default LBiPredicate trying(@Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
return (a1, a2) -> test(a1, a2, exF, newMessage, messageParams);
}
default boolean test(T1 a1, T2 a2, @Nonnull ExWF exF) {
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.wrap(e, exF);
}
}
default LBiPredicate trying(@Nonnull ExWF exF) {
return (a1, a2) -> test(a1, a2, exF);
}
default boolean testThen(T1 a1, T2 a2, @Nonnull LPredicate handler) {
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
Handling.handleErrors(e);
return handler.test(e);
}
}
default LBiPredicate tryingThen(@Nonnull LPredicate handler) {
return (a1, a2) -> testThen(a1, a2, handler);
}
/** Function call that handles exceptions by always nesting checked exceptions and propagating the others as is. */
default boolean nestingTest(T1 a1, T2 a2) {
try {
return this.testX(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 boolean shovingTest(T1 a1, T2 a2) {
try {
return this.testX(a1, a2);
} catch (Throwable e) { // NOSONAR
throw Handling.shoveIt(e);
}
}
static boolean handlingTest(T1 a1, T2 a2, LBiPredicate func, HandlingInstructions handling) { // <-
Null.nonNullArg(func, "func");
return func.handlingTest(a1, a2, handling);
}
static boolean tryTest(T1 a1, T2 a2, LBiPredicate func) {
Null.nonNullArg(func, "func");
return func.nestingTest(a1, a2);
}
static boolean tryTest(T1 a1, T2 a2, LBiPredicate func, @Nonnull ExWMF exF, @Nonnull String newMessage, @Nullable Object... messageParams) {
Null.nonNullArg(func, "func");
return func.test(a1, a2, exF, newMessage, messageParams);
}
static boolean tryTest(T1 a1, T2 a2, LBiPredicate func, @Nonnull ExWF exF) {
Null.nonNullArg(func, "func");
return func.test(a1, a2, exF);
}
static boolean tryTestThen(T1 a1, T2 a2, LBiPredicate func, @Nonnull LPredicate handler) {
Null.nonNullArg(func, "func");
return func.testThen(a1, a2, handler);
}
default boolean failSafeTest(T1 a1, T2 a2, @Nonnull LBiPredicate failSafe) {
try {
return test(a1, a2);
} catch (Throwable e) { // NOSONAR
Handling.handleErrors(e);
return failSafe.test(a1, a2);
}
}
static boolean failSafeTest(T1 a1, T2 a2, LBiPredicate func, @Nonnull LBiPredicate failSafe) {
Null.nonNullArg(failSafe, "failSafe");
if (func == null) {
return failSafe.test(a1, a2);
} else {
return func.failSafeTest(a1, a2, failSafe);
}
}
static LBiPredicate failSafe(LBiPredicate func, @Nonnull LBiPredicate failSafe) {
Null.nonNullArg(failSafe, "failSafe");
return (a1, a2) -> failSafeTest(a1, a2, func, failSafe);
}
default boolean doIf(T1 a1, T2 a2, LAction action) {
Null.nonNullArg(action, "action");
if (test(a1, a2)) {
action.execute();
return true;
} else {
return false;
}
}
static boolean doIf(T1 a1, T2 a2, @Nonnull LBiPredicate predicate, @Nonnull LAction action) {
Null.nonNullArg(predicate, "predicate");
return predicate.doIf(a1, a2, action);
}
static boolean doIf(T1 a1, T2 a2, @Nonnull LBiPredicate predicate, @Nonnull LBiConsumer consumer) {
Null.nonNullArg(predicate, "predicate");
return predicate.doIf(a1, a2, consumer);
}
default boolean doIf(T1 a1, T2 a2, @Nonnull LBiConsumer consumer) {
Null.nonNullArg(consumer, "consumer");
if (test(a1, a2)) {
consumer.accept(a1, a2);
return true;
} else {
return false;
}
}
static void throwIf(T1 a1, T2 a2, LBiPredicate pred, ExMF factory, @Nonnull String newMessage, @Nullable Object... messageParams) {
if (pred.test(a1, a2)) {
throw Handling.create(factory, newMessage, messageParams);
}
}
static void throwIfNot(T1 a1, T2 a2, LBiPredicate pred, ExMF factory, @Nonnull String newMessage, @Nullable Object... messageParams) {
if (!pred.test(a1, a2)) {
throw Handling.create(factory, newMessage, messageParams);
}
}
/** Just to mirror the method: Ensures the result is not null */
default boolean nonNullTest(T1 a1, T2 a2) {
return test(a1, a2);
}
/** For convenience, where "test()" makes things more confusing than "applyAsBoolean()". */
default boolean doApplyAsBoolean(T1 a1, T2 a2) {
return test(a1, a2);
}
/** Returns description of the functional interface. */
@Nonnull
default String functionalInterfaceDescription() {
return LBiPredicate.DESCRIPTION;
}
public default boolean doIf(V a1, T1 a2, T2 a3, LTriConsumer consumer) {
if (test(a2, a3)) {
consumer.accept(a1, a2, a3);
return true;
} else {
return false;
}
}
/** 2 */
public default int doIf(V a1, T1 a2, T2 a3, LToIntTriFunction consumer) {
if (test(a2, a3)) {
return consumer.applyAsInt(a1, a2, a3);
} else {
return 0;
}
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void fromTo(int min_i, int max_i, T1 a1, T2 a2, LBiPredicate func) {
Null.nonNullArg(func, "func");
if (min_i <= max_i) {
for (int i = min_i; i <= max_i; i++) {
func.test(a1, a2);
}
} else {
for (int i = min_i; i >= max_i; i--) {
func.test(a1, a2);
}
}
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void fromTill(int min_i, int max_i, T1 a1, T2 a2, LBiPredicate func) {
Null.nonNullArg(func, "func");
if (min_i <= max_i) {
for (int i = min_i; i < max_i; i++) {
func.test(a1, a2);
}
} else {
for (int i = min_i; i > max_i; i--) {
func.test(a1, a2);
}
}
}
/** From-To. Intended to be used with non-capturing lambda. */
public static void times(int max_i, T1 a1, T2 a2, LBiPredicate func) {
if (max_i < 0)
return;
fromTill(0, max_i, a1, a2, func);
}
public default LPredicate lShrink(LFunction left) {
return a2 -> test(left.apply(a2), a2);
}
public default LPredicate lShrinkc(T1 a1) {
return a2 -> test(a1, a2);
}
public static LPredicate lShrinked(LFunction left, LBiPredicate func) {
return func.lShrink(left);
}
public static LPredicate lShrinkedc(T1 a1, LBiPredicate func) {
return func.lShrinkc(a1);
}
public default LPredicate rShrink(LFunction right) {
return a1 -> test(a1, right.apply(a1));
}
public default LPredicate rShrinkc(T2 a2) {
return a1 -> test(a1, a2);
}
public static LPredicate rShrinked(LFunction right, LBiPredicate func) {
return func.rShrink(right);
}
public static LPredicate rShrinkedc(T2 a2, LBiPredicate func) {
return func.rShrinkc(a2);
}
/** */
public static LBiPredicate uncurry(LFunction> func) {
return (T1 a1, T2 a2) -> func.apply(a1).test(a2);
}
/** Cast that removes generics. */
public default LBiPredicate untyped() {
return this;
}
/** Cast that replace generics. */
public default LBiPredicate cast() {
return untyped();
}
/** Cast that replace generics. */
public static LBiPredicate cast(LBiPredicate function) {
return (LBiPredicate) function;
}
/** Captures arguments but delays the evaluation. */
default LBoolSupplier capture(T1 a1, T2 a2) {
return () -> this.test(a1, a2);
}
/** Creates function that always returns the same value. */
static LBiPredicate constant(boolean r) {
return (a1, a2) -> r;
}
/** Captures single parameter function into this interface where only 1st parameter will be used. */
@Nonnull
static LBiPredicate test1st(@Nonnull LPredicate func) {
return (a1, a2) -> func.test(a1);
}
/** Captures single parameter function into this interface where only 2nd parameter will be used. */
@Nonnull
static LBiPredicate test2nd(@Nonnull LPredicate func) {
return (a1, a2) -> func.test(a2);
}
/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
@Nonnull
static LBiPredicate biPred(final @Nonnull LBiPredicate lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda;
}
@Nonnull
static LBiPredicate recursive(final @Nonnull LFunction, LBiPredicate> selfLambda) {
final LBiPredicateSingle single = new LBiPredicateSingle();
LBiPredicate func = selfLambda.apply(single);
single.target = func;
return func;
}
final class LBiPredicateSingle implements LSingle>, LBiPredicate {
private LBiPredicate target = null;
@Override
public boolean testX(T1 a1, T2 a2) throws Throwable {
return target.testX(a1, a2);
}
@Override
public LBiPredicate value() {
return target;
}
}
@Nonnull
static LBiPredicate biPredThrowing(final @Nonnull ExF exF) {
Null.nonNullArg(exF, "exF");
return (a1, a2) -> {
throw exF.produce();
};
}
@Nonnull
static LBiPredicate biPredThrowing(final String message, final @Nonnull ExMF exF) {
Null.nonNullArg(exF, "exF");
return (a1, a2) -> {
throw exF.produce(message);
};
}
//
/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
@Nonnull
static LObj1Obj0Pred obj1Obj0Pred(final @Nonnull LObj1Obj0Pred lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda;
}
//
static boolean call(T1 a1, T2 a2, final @Nonnull LBiPredicate lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda.test(a1, a2);
}
//
/** Wraps JRE instance. */
@Nonnull
static LBiPredicate wrap(final BiPredicate other) {
return other::test;
}
//
//
/** Safe instance. That always returns the same value (as alwaysFalse). */
@Nonnull
static LBiPredicate safe() {
return LBiPredicate::alwaysFalse;
}
/** 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 LBiPredicate safe(final @Nullable LBiPredicate 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;
}
}
//
//
/**
* Returns a predicate that represents the logical negation of this predicate.
*
* @see {@link java.util.function.Predicate#negate}
*/
@Nonnull
default LBiPredicate negate() {
return (a1, a2) -> !test(a1, a2);
}
/**
* Returns a predicate that represents the logical AND of evaluation of this predicate and the argument one.
* @see {@link java.util.function.Predicate#and()}
*/
@Nonnull
default LBiPredicate and(@Nonnull LBiPredicate other) {
Null.nonNullArg(other, "other");
return (a1, a2) -> test(a1, a2) && other.test(a1, a2);
}
/**
* Returns a predicate that represents the logical OR of evaluation of this predicate and the argument one.
* @see {@link java.util.function.Predicate#or}
*/
@Nonnull
default LBiPredicate or(@Nonnull LBiPredicate other) {
Null.nonNullArg(other, "other");
return (a1, a2) -> test(a1, a2) || other.test(a1, a2);
}
/**
* Returns a predicate that represents the logical XOR of evaluation of this predicate and the argument one.
* @see {@link java.util.function.Predicate#or}
*/
@Nonnull
default LBiPredicate xor(@Nonnull LBiPredicate other) {
Null.nonNullArg(other, "other");
return (a1, a2) -> test(a1, a2) ^ other.test(a1, a2);
}
/**
* Creates predicate that evaluates if an object is equal with the argument one.
* @see {@link java.util.function.Predicate#isEqual()
*/
@Nonnull
static LBiPredicate isEqual(T1 v1, T2 v2) {
return (a1, a2) -> (a1 == null ? v1 == null : a1.equals(v1)) && (a2 == null ? v2 == null : a2.equals(v2));
}
//
//
/** Allows to manipulate the domain of the function. */
@Nonnull
default LBiPredicate compose(@Nonnull final LFunction before1, @Nonnull final LFunction before2) {
Null.nonNullArg(before1, "before1");
Null.nonNullArg(before2, "before2");
return (v1, v2) -> this.test(before1.apply(v1), before2.apply(v2));
}
public static LBiPredicate composed(@Nonnull final LFunction before1, @Nonnull final LFunction before2, LBiPredicate after) {
return after.compose(before1, before2);
}
//
//
/** Combines two functions together in a order. */
@Nonnull
default LBiFunction boolToBiFunc(@Nonnull LBoolFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.apply(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToByteBiFunction boolToToByteBiFunc(@Nonnull LBoolToByteFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsByte(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToSrtBiFunction boolToToSrtBiFunc(@Nonnull LBoolToSrtFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsSrt(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToIntBiFunction boolToToIntBiFunc(@Nonnull LBoolToIntFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsInt(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToLongBiFunction boolToToLongBiFunc(@Nonnull LBoolToLongFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsLong(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToFltBiFunction boolToToFltBiFunc(@Nonnull LBoolToFltFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsFlt(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToDblBiFunction boolToToDblBiFunc(@Nonnull LBoolToDblFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsDbl(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LToCharBiFunction boolToToCharBiFunc(@Nonnull LBoolToCharFunction after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.applyAsChar(this.test(a1, a2));
}
/** Combines two functions together in a order. */
@Nonnull
default LBiPredicate boolToBiPred(@Nonnull LLogicalOperator after) {
Null.nonNullArg(after, "after");
return (a1, a2) -> after.apply(this.test(a1, a2));
}
//
//
//
//
/** Permutation of LBiPredicate for method references. */
@FunctionalInterface
interface LObj1Obj0Pred extends LBiPredicate {
boolean testObj1Obj0(T2 a2, T1 a1);
@Override
default boolean testX(T1 a1, T2 a2) {
return this.testObj1Obj0(a2, a1);
}
}
//
// >>> LBiPredicate
/** Returns TRUE. */
public static boolean alwaysTrue(T1 a1, T2 a2) {
return true;
}
/** Returns FALSE. */
public static boolean alwaysFalse(T1 a1, T2 a2) {
return false;
}
/**
* For each element (or tuple) from arguments, calls the consumer if predicate test passes.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void filterForEach(IndexedRead> ia1, C1 source1, IndexedRead> ia2, C2 source2, LBiConsumer consumer) {
int size = ia1.size(source1);
LOiFunction oiFunc1 = (LOiFunction) ia1.getter();
size = Integer.min(size, ia2.size(source2));
LOiFunction oiFunc2 = (LOiFunction) ia2.getter();
int i = 0;
for (; i < size; i++) {
T1 a1 = oiFunc1.apply(source1, i);
T2 a2 = oiFunc2.apply(source2, i);
doIf(a1, a2, consumer);
}
}
/**
* For each element (or tuple) from arguments, calls the consumer if predicate test passes.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void filterIterate(SequentialRead> sa1, C1 source1, IndexedRead> ia2, C2 source2, LBiConsumer consumer) {
Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
LPredicate testFunc1 = (LPredicate) sa1.tester();
LFunction nextFunc1 = (LFunction) sa1.supplier();
int size = ia2.size(source2);
LOiFunction oiFunc2 = (LOiFunction) ia2.getter();
int i = 0;
while (testFunc1.test(iterator1) && i < size) {
T1 a1 = nextFunc1.apply(iterator1);
T2 a2 = oiFunc2.apply(source2, i);
doIf(a1, a2, consumer);
i++;
}
}
/**
* For each element (or tuple) from arguments, calls the consumer if predicate test passes.
* Thread safety, fail-fast, fail-safety of this method is not expected.
*/
default void filterIterate(IndexedRead> ia1, C1 source1, SequentialRead> sa2, C2 source2, LBiConsumer consumer) {
int size = ia1.size(source1);
LOiFunction oiFunc1 = (LOiFunction) ia1.getter();
Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
LPredicate testFunc2 = (LPredicate) sa2.tester();
LFunction nextFunc2 = (LFunction) sa2.supplier();
int i = 0;
while (i < size && testFunc2.test(iterator2)) {
T1 a1 = oiFunc1.apply(source1, i);
T2 a2 = nextFunc2.apply(iterator2);
doIf(a1, a2, consumer);
i++;
}
}
/**
* For each element (or tuple) from arguments, calls the consumer if predicate test passes.
* Thread safety, fail-fast, fail-safety of this method depends highly on the arguments.
*/
default void filterIterate(SequentialRead> sa1, C1 source1, SequentialRead> sa2, C2 source2, LBiConsumer consumer) {
Object iterator1 = ((LFunction) sa1.adapter()).apply(source1);
LPredicate testFunc1 = (LPredicate) sa1.tester();
LFunction nextFunc1 = (LFunction) sa1.supplier();
Object iterator2 = ((LFunction) sa2.adapter()).apply(source2);
LPredicate testFunc2 = (LPredicate) sa2.tester();
LFunction nextFunc2 = (LFunction) sa2.supplier();
while (testFunc1.test(iterator1) && testFunc2.test(iterator2)) {
T1 a1 = nextFunc1.apply(iterator1);
T2 a2 = nextFunc2.apply(iterator2);
doIf(a1, a2, consumer);
}
}
}
