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 * Copyright 2016 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 org.wildfly.common.function;

/**
 * A one-argument predicate which can throw an exception.
 *
 * @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
 */
@FunctionalInterface
public interface ExceptionPredicate<T, E extends Exception> {
    /**
     * Evaluate this predicate on the given arguments.
     *
     * @param t the first argument
     * @return {@code true} if the predicate passes, {@code false} otherwise
     * @throws E if an exception occurs
     */
    boolean test(T t) throws E;

    default ExceptionPredicate<T, E> and(ExceptionPredicate<T, E> other) {
        return t -> test(t) && other.test(t);
    }

    default ExceptionPredicate<T, E> or(ExceptionPredicate<T, E> other) {
        return t -> test(t) || other.test(t);
    }

    default ExceptionPredicate<T, E> xor(ExceptionPredicate<T, E> other) {
        return t -> test(t) != other.test(t);
    }

    default ExceptionPredicate<T, E> not() {
        return t -> !test(t);
    }

    default <U> ExceptionBiPredicate<T, U, E> with(ExceptionPredicate<? super U, ? extends E> other) {
        return (t, u) -> test(t) && other.test(u);
    }
}
