bundle/src/main/java/com/adobe/acs/commons/functions/CheckedBiConsumer.java
/*
* ACS AEM Commons
*
* Copyright (C) 2013 - 2023 Adobe
*
* 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 com.adobe.acs.commons.functions;
import org.osgi.annotation.versioning.ConsumerType;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
/**
* Created work-alike for functionality not introduced until Java 8
* Represents an operation that accepts two input arguments and returns no
* result. This is the two-arity specialization of {@link Consumer}.
* Unlike most other functional interfaces, {@code BiConsumer} is expected
* to operate via side-effects.
*
* @param <T> the type of the first argument to the operation
* @param <U> the type of the second argument to the operation
*
* @see Consumer
*/
@ConsumerType
@FunctionalInterface
@SuppressWarnings("squid:S00112")
public interface CheckedBiConsumer<T, U> {
static <T,U> CheckedBiConsumer<T,U> from(BiConsumer<T,U> handler) {
return handler == null ? null : (t, u) -> handler.accept(t, u);
}
/**
* Performs this operation on the given arguments.
*
* @param t the first input argument
* @param u the second input argument
* @throws java.lang.Exception
*/
void accept(T t, U u) throws Exception;
/**
* Returns a composed {@code BiConsumer} that performs, in sequence, this
* operation followed by the {@code after} operation. If performing either
* operation throws an exception, it is relayed to the caller of the
* composed operation. If performing this operation throws an exception,
* the {@code after} operation will not be performed.
*
* @param after the operation to perform after this operation
* @return a composed {@code BiConsumer} that performs in sequence this
* operation followed by the {@code after} operation
* @throws NullPointerException if {@code after} is null
*/
default CheckedBiConsumer<T, U> andThen(final CheckedBiConsumer<? super T, ? super U> after) {
if (after == null) {
throw new NullPointerException();
}
return (T t, U u) -> {
accept(t, u);
after.accept(t, u);
};
}
}