io.activej.crdt.wal.NoopWriteAheadLog Maven / Gradle / Ivy

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/*
 * Copyright (C) 2020 ActiveJ LLC.
 *
 * 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 io.activej.crdt.wal;

import io.activej.common.Checks;
import io.activej.promise.Promise;
import io.activej.reactor.AbstractReactive;
import io.activej.reactor.Reactor;

import static io.activej.reactor.Reactive.checkInReactorThread;

public class NoopWriteAheadLog, S> extends AbstractReactive
	implements IWriteAheadLog {

	private static final boolean CHECKS = Checks.isEnabled(NoopWriteAheadLog.class);

	private NoopWriteAheadLog(Reactor reactor) {
		super(reactor);
	}

	public static , S> NoopWriteAheadLog create(Reactor reactor) {
		return new NoopWriteAheadLog<>(reactor);
	}

	@Override
	public Promise put(K key, S value) {
		if (CHECKS) checkInReactorThread(this);
		return Promise.complete();
	}

	@Override
	public Promise flush() {
		if (CHECKS) checkInReactorThread(this);
		return Promise.complete();
	}
}