burningwave / reflection / #55

Committed 07 Sep 2023 06:44AM UTC coverage: 61.136% (-0.2%) from 61.29%

Build # #55

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Commit Message

Improved functionalities. Releasing new version

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/src/main/java/org/burningwave/Criteria.java

/*
 * This file is part of Burningwave Reflection.
 *
 * Author: Roberto Gentili
 *
 * Hosted at: https://github.com/burningwave/reflection
 *
 * --
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2022 Roberto Gentili
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without
 * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
 * EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 * OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.burningwave;

import org.burningwave.function.Function;
import org.burningwave.function.Handler;
import org.burningwave.function.ThrowingBiFunction;
import org.burningwave.function.ThrowingBiPredicate;
import org.burningwave.function.ThrowingPredicate;
import org.burningwave.function.ThrowingTriPredicate;
import org.burningwave.reflection.Constructors;

@SuppressWarnings("unchecked")
public class Criteria<E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> {

        protected Function<ThrowingBiPredicate<T, E, ? extends Throwable>, ThrowingBiPredicate<T, E, ? extends Throwable>> logicalOperator;

        protected ThrowingBiPredicate<T, E, ? extends Throwable> predicate;

        public final static <E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> Criteria<E, C, T> of(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                return new Criteria<E, C, T>().allThoseThatMatch(predicate);
        }

        public final static <E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> Criteria<E, C, T> of(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                return new Criteria<E, C, T>().allThoseThatMatch(predicate);
        }

        public C allThoseThatMatch(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                this.predicate = concat(
                        this.predicate,
                        new ThrowingBiPredicate<T, E, Throwable>() {
                                @Override
                                public boolean test(final T context, final E entity) throws Throwable {
                                        return predicate.test(context, entity);
                                }
                        }
                );
                return (C)this;
        }

        public C allThoseThatMatch(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                return allThoseThatMatch(
                        new ThrowingBiPredicate<T, E, Throwable>() {
                                @Override
                                public boolean test(final T context, final E entity) throws Throwable {
                                        return predicate.test(entity);
                                }
                        }
                ) ;
        }

        public C and(){
                logicalOperator = new Function<ThrowingBiPredicate<T, E, ? extends Throwable>, ThrowingBiPredicate<T, E, ? extends Throwable>>() {
                        @Override
                        public ThrowingBiPredicate<T, E, ? extends Throwable> apply(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                                return Handler.and(Criteria.this.predicate, (ThrowingBiPredicate)predicate);
                        }
                };
                return (C)this;
        }

        public C negate() {
                final ThrowingBiPredicate<T, E, ? extends Throwable> predicate = this.predicate;
                this.predicate = new ThrowingBiPredicate<T, E, Throwable>() {
                        @Override
                        public boolean test(final T context, final E entity) throws Throwable {
                                return predicate.test(context, entity);
                        }
                };
                return (C)this;
        }

        public C and(final C criteria) {
                return logicOperation(
                        this.createCopy(),
                        criteria.createCopy(),
                        new Function<
                                ThrowingBiPredicate<T, E, ? extends Throwable>,
                                Function<
                                        ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                        ThrowingBiPredicate<T, E, ? extends Throwable>
                                >
                        >() {
                                @Override
                                public Function<
                                        ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                        ThrowingBiPredicate<T, E, ? extends Throwable>
                                > apply(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                                        return new Function<
                                                ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                                ThrowingBiPredicate<T, E, ? extends Throwable>
                                        >() {
                                                @Override
                                                public ThrowingBiPredicate<T, E, ? extends Throwable> apply (
                                                        final ThrowingBiPredicate<? super T, ? super E, ? extends Throwable> otherPredicate
                                                ) {
                                                        return Handler.and(predicate, (ThrowingBiPredicate)otherPredicate);
                                                }
                                        };
                                }
                        },
                        newInstance()
                );
        }


        public C createCopy() {
                final C copy = newInstance();
                copy.predicate = this.predicate;
                copy.logicalOperator = this.logicalOperator;
                return copy;
        }


        public ThrowingPredicate<E, ? extends Throwable> getPredicateOrFalsePredicateIfPredicateIsNull() {
                return getPredicate(createTestContext(), false);
        }

        public ThrowingPredicate<E, ? extends Throwable> getPredicateOrTruePredicateIfPredicateIsNull() {
                return getPredicate(createTestContext(), true);
        }

        public boolean hasNoPredicate() {
                return this.predicate == null;
        }

        public C or(){
                logicalOperator = new Function<ThrowingBiPredicate<T, E, ? extends Throwable>, ThrowingBiPredicate<T, E, ? extends Throwable>>() {
                        @Override
                        public ThrowingBiPredicate<T, E, ? extends Throwable> apply(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                                return Handler.or(Criteria.this.predicate, (ThrowingBiPredicate) predicate);
                        }
                };
                return (C)this;
        }

        public C or(final C criteria) {
                return logicOperation(
                        this.createCopy(),
                        criteria.createCopy(),
                        new Function<
                                ThrowingBiPredicate<T, E, ? extends Throwable>,
                                Function<
                                        ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                        ThrowingBiPredicate<T, E, ? extends Throwable>
                                >
                        >() {
                                @Override
                                public Function<
                                        ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                        ThrowingBiPredicate<T, E, ? extends Throwable>
                                > apply(final ThrowingBiPredicate<T, E, ? extends Throwable> predicate) {
                                        return new Function<
                                                ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                                ThrowingBiPredicate<T, E, ? extends Throwable>
                                        >() {
                                                @Override
                                                public ThrowingBiPredicate<T, E, ? extends Throwable> apply (
                                                        final ThrowingBiPredicate<? super T, ? super E, ? extends Throwable> otherPredicate
                                                ) {
                                                        return Handler.or(predicate, (ThrowingBiPredicate)otherPredicate);
                                                }
                                        };
                                }
                        },
                        newInstance()
                );
        }


        public T testWithFalseResultForNullEntityOrFalseResultForNullPredicate(final E entity) {
                final T context = createTestContext();
                testWithFalseResultForNullEntityOrFalseResultForNullPredicate(context, entity);
                return context;
        }

        public T testWithFalseResultForNullEntityOrTrueResultForNullPredicate(final E entity) {
                final T context = createTestContext();
                testWithFalseResultForNullEntityOrTrueResultForNullPredicate(context, entity);
                return context;
        }

        public T testWithTrueResultForNullEntityOrFalseResultForNullPredicate(final E entity) {
                final T context = createTestContext();
                testWithTrueResultForNullEntityOrFalseResultForNullPredicate(context, entity);
                return context;
        }

        public T testWithTrueResultForNullEntityOrTrueResultForNullPredicate(final E entity) {
                final T context = createTestContext();
                testWithTrueResultForNullEntityOrTrueResultForNullPredicate(context, entity);
                return context;
        }

        protected ThrowingBiPredicate<T, E, ? extends Throwable> concat(
                final ThrowingBiPredicate<T, E, ? extends Throwable> mainPredicate,
                final ThrowingBiPredicate<T, E, ? extends Throwable> otherPredicate
        ) {
                final ThrowingBiPredicate<T, E, ? extends Throwable> predicate = concat(mainPredicate, this.logicalOperator, otherPredicate);
                this.logicalOperator = null;
                return predicate;
        }

        protected <E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> ThrowingBiPredicate<T, E, ? extends Throwable> concat(
                final ThrowingBiPredicate<T, E, ? extends Throwable> mainPredicate,
                final Function<ThrowingBiPredicate<T, E, ? extends Throwable>, ThrowingBiPredicate<T, E, ? extends Throwable>> logicalOperator,
                final ThrowingBiPredicate<T, E, ? extends Throwable> otherPredicate
        ) {
                if (otherPredicate != null) {
                        if (mainPredicate != null) {
                                return consumeLogicalOperator(otherPredicate, logicalOperator);
                        }
                        return otherPredicate;
                }
                return mainPredicate;
        }


        protected T createTestContext() {
                return (T)TestContext.<E, C, T>create((C)this);
        }

        protected T getContextWithFalsePredicateForNullPredicate() {
                final T context = createTestContext();
                getPredicate(context, false);
                return context;
        }

        protected T getContextWithTruePredicateForNullPredicate() {
                final T context = createTestContext();
                getPredicate(context, true);
                return context;
        }

        protected <V> ThrowingBiPredicate<T, E, ? extends Throwable> getPredicateWrapper(
                final ThrowingBiFunction<T, E, V[], ? extends Throwable> valueSupplier,
                final ThrowingTriPredicate<T, V[], Integer, ? extends Throwable> predicate
        ) {
                return getPredicateWrapper(
                        new ThrowingBiPredicate<T, E, Throwable>() {
                                @Override
                                public boolean test(final T criteria, final E entity) throws Throwable {
                                        final V[] array = valueSupplier.apply(criteria, entity);
                                        boolean result = false;
                                        for (int i = 0; i < array.length; i++) {
                                                if (result = predicate.test(criteria, array, i)) {
                                                        break;
                                                }
                                        }
                                        //logDebug("test for {} return {}", entity, result);
                                        return result;
                                }
                        }
                );
        }

        protected C logicOperation(final C leftCriteria, final C rightCriteria,
                final Function<
                        ThrowingBiPredicate<T, E, ? extends Throwable>,
                        Function<
                                ThrowingBiPredicate<? super T, ? super E, ? extends Throwable>,
                                ThrowingBiPredicate<T, E, ? extends Throwable>
                        >
                > binaryOperator,
                final C targetCriteria
        ) {
                targetCriteria.predicate =
                        leftCriteria.predicate != null?
                                (rightCriteria.predicate != null?
                                        binaryOperator.apply(leftCriteria.predicate).apply(rightCriteria.predicate) :
                                        leftCriteria.predicate):
                                rightCriteria.predicate;
                return targetCriteria;
        }

        protected C newInstance() {
                return (C)Constructors.INSTANCE.newInstanceOf(this.getClass());
        }

        @SuppressWarnings("hiding")
        <E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> ThrowingBiPredicate<T,E, ? extends Throwable> consumeLogicalOperator(
                final ThrowingBiPredicate<T, E, ? extends Throwable> input,
                final Function<
                        ThrowingBiPredicate<T, E, ? extends Throwable>,
                        ThrowingBiPredicate<T, E, ? extends Throwable>
                > logicalOperator
        ) {
                if (logicalOperator != null) {
                        return logicalOperator.apply(input);
                }
                return Throwables.INSTANCE.throwException(
                        "A call to and/or method is necessary before calling {} at {}",
                        Thread.currentThread().getStackTrace()[10].getMethodName(),
                        Thread.currentThread().getStackTrace()[11]
                );
        }

        ThrowingBiPredicate<T, E, ? extends Throwable> getPredicateWrapper(
                final ThrowingBiPredicate<T, E, ? extends Throwable> function
        ) {
                if (function != null) {
                        return new ThrowingBiPredicate<T, E, Throwable>() {
                                @Override
                                public boolean test(final T criteria, final E entity) throws Throwable {
                                        return function.test(criteria, entity);
                                }
                        };
                }
                return null;
        }

        private ThrowingPredicate<E, ? extends Throwable> getPredicate(final T context, final boolean defaultResult) {
                return context.setPredicate(
                        this.predicate != null?
                                new ThrowingPredicate<E, Throwable>() {
                                        @Override
                                        public boolean test(final E entity) throws Throwable {
                                                return context.setEntity(entity).setResult(Criteria.this.predicate.test(
                                                        context,
                                                        entity
                                                )).getResult();
                                        }
                                } :
                        new ThrowingPredicate<E, Throwable>() {
                                @Override
                                public boolean test(final E entity) {
                                        return context.setEntity(entity).setResult(defaultResult).getResult();
                                }
                        }
                ).getPredicate();
        }


        private boolean testWithFalseResultForNullEntityOrFalseResultForNullPredicate(final T context, final E entity) {
                if (entity != null) {
                        try {
                                return getPredicate(context, false).test(entity);
                        } catch (final Throwable exc) {
                                Throwables.INSTANCE.throwException(exc);
                        }
                }
                return context.setEntity(entity).setResult(false).getResult();
        }


        private boolean testWithFalseResultForNullEntityOrTrueResultForNullPredicate(final T context, final E entity) {
                if (entity != null) {
                        try {
                                return getPredicate(context, true).test(entity);
                        } catch (final Throwable exc) {
                                Throwables.INSTANCE.throwException(exc);
                        }
                }
                return context.setEntity(entity).setResult(false).getResult();
        }


        private boolean testWithTrueResultForNullEntityOrFalseResultForNullPredicate(final T context, final E entity) {
                if (entity != null) {
                        try {
                                return getPredicate(context, false).test(entity);
                        } catch (final Throwable exc) {
                                Throwables.INSTANCE.throwException(exc);
                        }
                }
                return context.setEntity(entity).setResult(true).getResult();
        }

        private boolean testWithTrueResultForNullEntityOrTrueResultForNullPredicate(final T context, final E entity) {
                if (entity != null) {
                        try {
                                return getPredicate(context, true).test(entity);
                        } catch (final Throwable exc) {
                                Throwables.INSTANCE.throwException(exc);
                        }
                }
                return context.setEntity(entity).setResult(true).getResult();
        }

        public static class Simple<E, C extends Simple<E, C>> {

                protected Function<ThrowingPredicate<E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>> logicalOperator;
                protected ThrowingPredicate<E, ? extends Throwable> predicate;

                public C allThoseThatMatch(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                        this.predicate = concat(
                                this.predicate,
                                new ThrowingPredicate<E,Throwable>() {
                                        @Override
                                        public boolean test(final E entity) throws Throwable {
                                                return predicate.test(entity);
                                        }
                                }
                        );
                        return (C)this;
                }

                public C and(){
                        logicalOperator = new Function<ThrowingPredicate<E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>>() {
                                @Override
                                public ThrowingPredicate<E, ? extends Throwable> apply(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                                        return Handler.and(Simple.this.predicate, (ThrowingPredicate)predicate);
                                }
                        };
                        return (C)this;
                }

                public C and(final C criteria) {
                        return logicOperation(this.createCopy(), criteria.createCopy(),
                                        new Function<ThrowingPredicate<E, ? extends Throwable>,
                                        Function<ThrowingPredicate<? super E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>>>() {
                                @Override
                                public Function<ThrowingPredicate<? super E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>> apply(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                                        return new Function<
                                                ThrowingPredicate<? super E, ? extends Throwable>,
                                                ThrowingPredicate<E, ? extends Throwable>
                                        >() {
                                                @Override
                                                public ThrowingPredicate<E, ? extends Throwable> apply(
                                                        final ThrowingPredicate<? super E, ? extends Throwable> otherPredicate
                                                ) {
                                                        return Handler.and(predicate, (ThrowingPredicate) otherPredicate);
                                                }

                                        };
                                }
                        }, newInstance());
                }

                public C createCopy() {
                        final C copy = newInstance();
                        copy.predicate = this.predicate;
                        copy.logicalOperator = this.logicalOperator;
                        return copy;
                }

                public ThrowingPredicate<E, ? extends Throwable> getPredicateOrFalsePredicateIfPredicateIsNull() {
                        return getPredicate(false);
                }


                public ThrowingPredicate<E, ? extends Throwable> getPredicateOrTruePredicateIfPredicateIsNull() {
                        return getPredicate(true);
                }

                public boolean hasNoPredicate() {
                        return this.predicate == null;
                }

                public C or(){
                        logicalOperator = new Function<ThrowingPredicate<E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>>() {
                                @Override
                                public ThrowingPredicate<E, ? extends Throwable> apply(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                                        return Handler.or(Simple.this.predicate, (ThrowingPredicate)predicate);
                                }
                        };
                        return (C)this;
                }

                public C or(final C criteria) {
                        return logicOperation(
                                this.createCopy(), criteria.createCopy(),
                                new Function<ThrowingPredicate<E, ? extends Throwable>, Function<ThrowingPredicate<? super E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>>>() {
                                        @Override
                                        public Function<ThrowingPredicate<? super E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>> apply(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                                                return new Function<
                                                        ThrowingPredicate<? super E, ? extends Throwable>,
                                                        ThrowingPredicate<E, ? extends Throwable>
                                                >() {
                                                        @Override
                                                        public ThrowingPredicate<E, ? extends Throwable> apply(
                                                                final ThrowingPredicate<? super E, ? extends Throwable> otherPredicate
                                                        ) {
                                                                return Handler.or(predicate, (ThrowingPredicate)otherPredicate);
                                                        }
                                                };
                                        }
                                },
                                newInstance()
                        );
                }

                public boolean testWithFalseResultForNullEntityOrFalseResultForNullPredicate(final E entity) {
                        if (entity != null) {
                                try {
                                        return getPredicateOrFalsePredicateIfPredicateIsNull().test(entity);
                                } catch (final Throwable exc) {
                                        return Throwables.INSTANCE.throwException(exc);
                                }
                        }
                        return false;
                }


                public boolean testWithFalseResultForNullEntityOrTrueResultForNullPredicate(final E entity) {
                        if (entity != null) {
                                try {
                                        return getPredicateOrTruePredicateIfPredicateIsNull().test(entity);
                                } catch (final Throwable exc) {
                                        return Throwables.INSTANCE.throwException(exc);
                                }
                        }
                        return false;
                }

                public boolean testWithFalseResultForNullPredicate(final E entity) {
                        try {
                                return getPredicateOrFalsePredicateIfPredicateIsNull().test(entity);
                        } catch (final Throwable exc) {
                                return Throwables.INSTANCE.throwException(exc);
                        }
                }

                public boolean testWithTrueResultForNullEntityOrFalseResultForNullPredicate(final E entity) {
                        if (entity != null) {
                                try {
                                        return getPredicateOrFalsePredicateIfPredicateIsNull().test(entity);
                                } catch (final Throwable exc) {
                                        return Throwables.INSTANCE.throwException(exc);
                                }
                        }
                        return true;
                }

                public boolean testWithTrueResultForNullEntityOrTrueResultForNullPredicate(final E entity) {
                        if (entity != null) {
                                try {
                                        return getPredicateOrTruePredicateIfPredicateIsNull().test(entity);
                                } catch (final Throwable exc) {
                                        return Throwables.INSTANCE.throwException(exc);
                                }
                        }
                        return true;
                }

                public boolean testWithTrueResultForNullPredicate(final E entity) {
                        try {
                                return getPredicateOrTruePredicateIfPredicateIsNull().test(entity);
                        } catch (final Throwable exc) {
                                return Throwables.INSTANCE.throwException(exc);
                        }
                }


                protected <E, C extends Simple<E, C>> ThrowingPredicate<E, ? extends Throwable> concat(
                        final ThrowingPredicate<E, ? extends Throwable> mainPredicate,
                        final Function<ThrowingPredicate<E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>> logicalOperator,
                        final ThrowingPredicate<E, ? extends Throwable> otherPredicate
                ) {
                        if (otherPredicate != null) {
                                if (mainPredicate != null) {
                                        return consumeLogicalOperator(otherPredicate, logicalOperator);
                                }
                                return otherPredicate;
                        }
                        return mainPredicate;
                }

                protected ThrowingPredicate<E, ? extends Throwable> concat(
                        final ThrowingPredicate<E, ? extends Throwable> mainPredicate,
                        final ThrowingPredicate<E, ? extends Throwable> otherPredicate
                ) {
                        final ThrowingPredicate<E, ? extends Throwable> predicate = concat(mainPredicate, this.logicalOperator, otherPredicate);
                        this.logicalOperator = null;
                        return predicate;
                }

                protected <V> ThrowingPredicate<E, ? extends Throwable> getPredicateWrapper(
                        final Function<E, V[]> valueSupplier,
                        final ThrowingBiPredicate<V[], Integer, ? extends Throwable> predicate
                ) {
                        return getPredicateWrapper(new ThrowingPredicate<E, Throwable>() {
                                @Override
                                public boolean test(final E entity) throws Throwable {
                                        final V[] array = valueSupplier.apply(entity);
                                        boolean result = false;
                                        for (int i = 0; i < array.length; i++) {
                                                if (result = predicate.test(array, i)) {
                                                        break;
                                                }
                                        }
                                        //logDebug("test for {} return {}", entity, result);
                                        return result;
                                }
                        });
                }

                protected C logicOperation(final C leftCriteria, final C rightCriteria,
                        final Function<ThrowingPredicate<E, ? extends Throwable>, Function<ThrowingPredicate< ? super E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>>> binaryOperator,
                        final C targetCriteria
                ) {
                        targetCriteria.predicate =
                                leftCriteria.predicate != null?
                                        (rightCriteria.predicate != null?
                                                binaryOperator.apply(leftCriteria.predicate).apply(rightCriteria.predicate) :
                                                leftCriteria.predicate):
                                        rightCriteria.predicate;
                        return targetCriteria;
                }

                protected C newInstance() {
                        return (C)Constructors.INSTANCE.newInstanceOf(this.getClass());
                }

                @SuppressWarnings("hiding")
                <E, C extends Simple<E, C>> ThrowingPredicate<E, ? extends Throwable> consumeLogicalOperator (
                        final ThrowingPredicate<E, ? extends Throwable> input,
                        final Function<ThrowingPredicate<E, ? extends Throwable>, ThrowingPredicate<E, ? extends Throwable>> logicalOperator
                ) {
                        if (logicalOperator != null) {
                                return logicalOperator.apply(input);
                        }
                        return Throwables.INSTANCE.throwException(
                                "A call to and/or method is necessary before calling {} at {}",
                                Thread.currentThread().getStackTrace()[10].getMethodName(),
                                Thread.currentThread().getStackTrace()[11]
                        );
                }

                ThrowingPredicate<E, ? extends Throwable> getPredicateWrapper(
                        final ThrowingPredicate<E, ? extends Throwable> function
                ) {
                        if (function != null) {
                                return new ThrowingPredicate<E, Throwable>() {
                                        @Override
                                        public boolean test(final E entity) throws Throwable {
                                                return function.test(entity);
                                        }
                                };
                        }
                        return null;
                }

                private ThrowingPredicate<E, ? extends Throwable> getPredicate(final boolean defaultResult) {
                        return this.predicate != null?
                                new ThrowingPredicate<E, Throwable>() {
                                        @Override
                                        public boolean test(final E entity) throws Throwable {
                                                return Simple.this.predicate.test(entity);
                                        }
                                } :
                                new ThrowingPredicate<E, Throwable>() {
                                        @Override
                                        public boolean test(final E entity) {
                                                return defaultResult;
                                        }
                                };
                }
        }

        public static class TestContext<E, C extends Criteria<E, C, ?>> extends Context {
                private enum Elements {
                        ENTITY,
                        PREDICATE,
                        TEST_RESULT,
                        THIS_CRITERIA
                }

                protected TestContext(final C criteria) {
                        super();
                        put(Elements.THIS_CRITERIA, criteria);
                }

                public static <E, C extends Criteria<E, C, T>, T extends Criteria.TestContext<E, C>> TestContext<E, C> create(final C criteria) {
                        return new TestContext<>(criteria);
                }

                public C getCriteria() {
                        return get(Elements.THIS_CRITERIA);
                }

                public E getEntity() {
                        return get(Elements.ENTITY);
                }

                public ThrowingPredicate<E, ? extends Throwable> getPredicate() {
                        return get(Elements.PREDICATE);
                }

                public Boolean getResult() {
                        return super.get(Elements.TEST_RESULT);
                }

                <T extends Criteria.TestContext<E, C>> T setEntity(final E entity) {
                        put(Elements.ENTITY, entity);
                        return (T) this;
                }

                <T extends Criteria.TestContext<E, C>> T setPredicate(final ThrowingPredicate<E, ? extends Throwable> predicate) {
                        put(Elements.PREDICATE, predicate);
                        return (T)this;
                }

                <T extends Criteria.TestContext<E, C>> T setResult(final Boolean result) {
                        put(Elements.TEST_RESULT, result);
                        return (T) this;
                }
        }

}

burningwave / reflection / #55

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