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An advanced and highly optimized reflection engine
/*
* 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, T extends Criteria.TestContext> {
protected Function, ThrowingBiPredicate> logicalOperator;
protected ThrowingBiPredicate predicate;
public final static , T extends Criteria.TestContext> Criteria of(final ThrowingBiPredicate predicate) {
return new Criteria().allThoseThatMatch(predicate);
}
public final static , T extends Criteria.TestContext> Criteria of(final ThrowingPredicate predicate) {
return new Criteria().allThoseThatMatch(predicate);
}
public C allThoseThatMatch(final ThrowingBiPredicate predicate) {
this.predicate = concat(
this.predicate,
new ThrowingBiPredicate() {
@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 predicate) {
return allThoseThatMatch(
new ThrowingBiPredicate() {
@Override
public boolean test(final T context, final E entity) throws Throwable {
return predicate.test(entity);
}
}
) ;
}
public C and(){
logicalOperator = new Function, ThrowingBiPredicate>() {
@Override
public ThrowingBiPredicate apply(final ThrowingBiPredicate predicate) {
return Handler.and(Criteria.this.predicate, (ThrowingBiPredicate)predicate);
}
};
return (C)this;
}
public C and(final C criteria) {
return logicOperation(
this.createCopy(),
criteria.createCopy(),
new Function<
ThrowingBiPredicate,
Function<
ThrowingBiPredicate,
ThrowingBiPredicate
>
>() {
@Override
public Function<
ThrowingBiPredicate,
ThrowingBiPredicate
> apply(final ThrowingBiPredicate predicate) {
return new Function<
ThrowingBiPredicate,
ThrowingBiPredicate
>() {
@Override
public ThrowingBiPredicate apply (
final ThrowingBiPredicate otherPredicate
) {
return Handler.and(predicate, (ThrowingBiPredicate)otherPredicate);
}
};
}
},
newInstance()
);
}
public C or(){
logicalOperator = new Function, ThrowingBiPredicate>() {
@Override
public ThrowingBiPredicate apply(final ThrowingBiPredicate 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,
Function<
ThrowingBiPredicate,
ThrowingBiPredicate
>
>() {
@Override
public Function<
ThrowingBiPredicate,
ThrowingBiPredicate
> apply(final ThrowingBiPredicate predicate) {
return new Function<
ThrowingBiPredicate,
ThrowingBiPredicate
>() {
@Override
public ThrowingBiPredicate apply (
final ThrowingBiPredicate otherPredicate
) {
return Handler.or(predicate, (ThrowingBiPredicate)otherPredicate);
}
};
}
},
newInstance()
);
}
public C negate() {
final ThrowingBiPredicate predicate = this.predicate;
this.predicate = new ThrowingBiPredicate() {
@Override
public boolean test(final T context, final E entity) throws Throwable {
return !predicate.test(context, entity);
}
};
return (C)this;
}
public C createCopy() {
final C copy = newInstance();
copy.predicate = this.predicate;
copy.logicalOperator = this.logicalOperator;
return copy;
}
public ThrowingPredicate getPredicateOrFalsePredicateIfPredicateIsNull() {
return getPredicate(createTestContext(), false);
}
public ThrowingPredicate getPredicateOrTruePredicateIfPredicateIsNull() {
return getPredicate(createTestContext(), true);
}
public boolean hasNoPredicate() {
return this.predicate == null;
}
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 concat(
final ThrowingBiPredicate mainPredicate,
final ThrowingBiPredicate otherPredicate
) {
final ThrowingBiPredicate predicate = concat(mainPredicate, this.logicalOperator, otherPredicate);
this.logicalOperator = null;
return predicate;
}
protected , T extends Criteria.TestContext> ThrowingBiPredicate concat(
final ThrowingBiPredicate mainPredicate,
final Function, ThrowingBiPredicate> logicalOperator,
final ThrowingBiPredicate otherPredicate
) {
if (otherPredicate != null) {
if (mainPredicate != null) {
return consumeLogicalOperator(otherPredicate, logicalOperator);
}
return otherPredicate;
}
return mainPredicate;
}
protected T createTestContext() {
return (T)TestContext.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 ThrowingBiPredicate getPredicateWrapper(
final ThrowingBiFunction valueSupplier,
final ThrowingTriPredicate predicate
) {
return getPredicateWrapper(
new ThrowingBiPredicate() {
@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,
Function<
ThrowingBiPredicate,
ThrowingBiPredicate
>
> 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")
, T extends Criteria.TestContext> ThrowingBiPredicate consumeLogicalOperator(
final ThrowingBiPredicate input,
final Function<
ThrowingBiPredicate,
ThrowingBiPredicate
> 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 getPredicateWrapper(
final ThrowingBiPredicate function
) {
if (function != null) {
return new ThrowingBiPredicate() {
@Override
public boolean test(final T criteria, final E entity) throws Throwable {
return function.test(criteria, entity);
}
};
}
return null;
}
private ThrowingPredicate getPredicate(final T context, final boolean defaultResult) {
return context.setPredicate(
this.predicate != null?
new ThrowingPredicate() {
@Override
public boolean test(final E entity) throws Throwable {
return context.setEntity(entity).setResult(Criteria.this.predicate.test(
context,
entity
)).getResult();
}
} :
new ThrowingPredicate() {
@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> {
protected Function, ThrowingPredicate> logicalOperator;
protected ThrowingPredicate predicate;
public C allThoseThatMatch(final ThrowingPredicate predicate) {
this.predicate = concat(
this.predicate,
new ThrowingPredicate() {
@Override
public boolean test(final E entity) throws Throwable {
return predicate.test(entity);
}
}
);
return (C)this;
}
public C and(){
logicalOperator = new Function, ThrowingPredicate>() {
@Override
public ThrowingPredicate apply(final ThrowingPredicate 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,
Function, ThrowingPredicate>>() {
@Override
public Function, ThrowingPredicate> apply(final ThrowingPredicate predicate) {
return new Function<
ThrowingPredicate,
ThrowingPredicate
>() {
@Override
public ThrowingPredicate apply(
final ThrowingPredicate otherPredicate
) {
return Handler.and(predicate, (ThrowingPredicate) otherPredicate);
}
};
}
}, newInstance());
}
public C or(){
logicalOperator = new Function, ThrowingPredicate>() {
@Override
public ThrowingPredicate apply(final ThrowingPredicate 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, Function, ThrowingPredicate>>() {
@Override
public Function, ThrowingPredicate> apply(final ThrowingPredicate predicate) {
return new Function<
ThrowingPredicate,
ThrowingPredicate
>() {
@Override
public ThrowingPredicate apply(
final ThrowingPredicate otherPredicate
) {
return Handler.or(predicate, (ThrowingPredicate)otherPredicate);
}
};
}
},
newInstance()
);
}
public C negate() {
final ThrowingPredicate predicate = this.predicate;
this.predicate = new ThrowingPredicate() {
@Override
public boolean test(E entity) throws Throwable {
return !predicate.test(entity);
}
};
return (C)this;
}
public C createCopy() {
final C copy = newInstance();
copy.predicate = this.predicate;
copy.logicalOperator = this.logicalOperator;
return copy;
}
public ThrowingPredicate getPredicateOrFalsePredicateIfPredicateIsNull() {
return getPredicate(false);
}
public ThrowingPredicate getPredicateOrTruePredicateIfPredicateIsNull() {
return getPredicate(true);
}
public boolean hasNoPredicate() {
return this.predicate == null;
}
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 > ThrowingPredicate concat(
final ThrowingPredicate mainPredicate,
final Function, ThrowingPredicate> logicalOperator,
final ThrowingPredicate otherPredicate
) {
if (otherPredicate != null) {
if (mainPredicate != null) {
return consumeLogicalOperator(otherPredicate, logicalOperator);
}
return otherPredicate;
}
return mainPredicate;
}
protected ThrowingPredicate concat(
final ThrowingPredicate mainPredicate,
final ThrowingPredicate otherPredicate
) {
final ThrowingPredicate predicate = concat(mainPredicate, this.logicalOperator, otherPredicate);
this.logicalOperator = null;
return predicate;
}
protected ThrowingPredicate getPredicateWrapper(
final Function valueSupplier,
final ThrowingBiPredicate predicate
) {
return getPredicateWrapper(new ThrowingPredicate() {
@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, Function, ThrowingPredicate>> 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")
> ThrowingPredicate consumeLogicalOperator (
final ThrowingPredicate input,
final Function, ThrowingPredicate> 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 getPredicateWrapper(
final ThrowingPredicate function
) {
if (function != null) {
return new ThrowingPredicate() {
@Override
public boolean test(final E entity) throws Throwable {
return function.test(entity);
}
};
}
return null;
}
private ThrowingPredicate getPredicate(final boolean defaultResult) {
return this.predicate != null?
new ThrowingPredicate() {
@Override
public boolean test(final E entity) throws Throwable {
return Simple.this.predicate.test(entity);
}
} :
new ThrowingPredicate() {
@Override
public boolean test(final E entity) {
return defaultResult;
}
};
}
}
public static class TestContext> extends Context {
private enum Elements {
ENTITY,
PREDICATE,
TEST_RESULT,
THIS_CRITERIA
}
protected TestContext(final C criteria) {
super();
put(Elements.THIS_CRITERIA, criteria);
}
public static , T extends Criteria.TestContext> TestContext 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 getPredicate() {
return get(Elements.PREDICATE);
}
public Boolean getResult() {
return super.get(Elements.TEST_RESULT);
}
> T setEntity(final E entity) {
put(Elements.ENTITY, entity);
return (T) this;
}
> T setPredicate(final ThrowingPredicate predicate) {
put(Elements.PREDICATE, predicate);
return (T)this;
}
> T setResult(final Boolean result) {
put(Elements.TEST_RESULT, result);
return (T) this;
}
}
}