net.uncontended.precipice.circuit.NoOpCircuitBreaker Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of precipice-core Show documentation

Precipice provides tools to manage access to and usage of services.

There is a newer version: 0.7.0

/*
 * Copyright 2014 Timothy Brooks
 *
 * 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 net.uncontended.precipice.circuit;

import net.uncontended.precipice.Failable;
import net.uncontended.precipice.GuardRail;

import java.util.concurrent.atomic.AtomicBoolean;

public class NoOpCircuitBreaker> implements CircuitBreaker {
    private final AtomicBoolean circuitOpen = new AtomicBoolean(false);
    private final Rejected reason;

    public NoOpCircuitBreaker(Rejected reason) {
        this.reason = reason;
    }

    @Override
    public Rejected acquirePermit(long number, long nanoTime) {
        if (circuitOpen.get()) {
            return reason;
        }
        return null;
    }

    @Override
    public void releasePermit(long number, long nanoTime) {

    }

    @Override
    public void releasePermit(long number, Failable result, long nanoTime) {

    }

    @Override
    public  & Failable> void registerGuardRail(GuardRail guardRail) {
    }

    @Override
    public boolean isOpen() {
        return circuitOpen.get();
    }

    @Override
    public CircuitBreakerConfig getBreakerConfig() {
        return null;
    }

    @Override
    public void setBreakerConfig(CircuitBreakerConfig breakerConfig) {
    }

    @Override
    public void forceOpen() {
        circuitOpen.set(true);
    }

    @Override
    public void forceClosed() {
        circuitOpen.set(false);
    }
}