All Downloads are FREE. Search and download functionalities are using the official Maven repository.
  • Log In
  • Register

    • org.redisson.RedissonAtomicDouble Maven / Gradle / Ivy

    Go to download

    Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

    There is a newer version: 3.40.2
    Show newest version
    /**
 * Copyright (c) 2013-2024 Nikita Koksharov
 *
 * 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.redisson;

import java.math.BigDecimal;
import java.util.Collections;

import org.redisson.api.ObjectListener;
import org.redisson.api.RAtomicDouble;
import org.redisson.api.RFuture;
import org.redisson.api.listener.IncrByListener;
import org.redisson.client.codec.DoubleCodec;
import org.redisson.client.codec.StringCodec;
import org.redisson.client.protocol.RedisCommands;
import org.redisson.client.protocol.RedisStrictCommand;
import org.redisson.client.protocol.convertor.Convertor;
import org.redisson.command.CommandAsyncExecutor;

/**
 * Distributed alternative to the {@link java.util.concurrent.atomic.AtomicLong}
 *
 * @author Nikita Koksharov
 *
 */
public class RedissonAtomicDouble extends RedissonExpirable implements RAtomicDouble {

    public RedissonAtomicDouble(CommandAsyncExecutor commandExecutor, String name) {
        super(commandExecutor, name);
    }

    @Override
    public double addAndGet(double delta) {
        return get(addAndGetAsync(delta));
    }

    @Override
    public RFuture addAndGetAsync(double delta) {
        if (delta == 0) {
            return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.INCRBYFLOAT, getRawName(), 0);
        }
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.INCRBYFLOAT, getRawName(), BigDecimal.valueOf(delta).toPlainString());
    }

    @Override
    public boolean compareAndSet(double expect, double update) {
        return get(compareAndSetAsync(expect, update));
    }

    @Override
    public RFuture compareAndSetAsync(double expect, double update) {
        return commandExecutor.evalWriteAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.EVAL_BOOLEAN,
                  "local value = redis.call('get', KEYS[1]);"
                + "if (value == false and tonumber(ARGV[1]) == 0) or (tonumber(value) == tonumber(ARGV[1])) then "
                     + "redis.call('set', KEYS[1], ARGV[2]); "
                     + "return 1 "
                   + "else "
                     + "return 0 end",
                Collections.singletonList(getRawName()), BigDecimal.valueOf(expect).toPlainString(), BigDecimal.valueOf(update).toPlainString());
    }

    @Override
    public double decrementAndGet() {
        return get(decrementAndGetAsync());
    }

    @Override
    public RFuture decrementAndGetAsync() {
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.INCRBYFLOAT, getRawName(), -1);
    }

    @Override
    public double get() {
        return get(getAsync());
    }

    @Override
    public double getAndDelete() {
        return get(getAndDeleteAsync());
    }
    
    @Override
    public RFuture getAndDeleteAsync() {
        return commandExecutor.evalWriteAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.EVAL_DOUBLE,
                   "local currValue = redis.call('get', KEYS[1]); "
                 + "redis.call('del', KEYS[1]); "
                 + "return currValue; ",
                Collections.singletonList(getRawName()));
    }
    
    @Override
    public RFuture getAsync() {
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.GET_DOUBLE, getRawName());
    }

    @Override
    public double getAndAdd(double delta) {
        return get(getAndAddAsync(delta));
    }

    @Override
    public RFuture getAndAddAsync(final double delta) {
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, new RedisStrictCommand("INCRBYFLOAT", new Convertor() {
            @Override
            public Double convert(Object obj) {
                return Double.valueOf(obj.toString()) - delta;
            }
        }), getRawName(), BigDecimal.valueOf(delta).toPlainString());
    }


    @Override
    public double getAndSet(double newValue) {
        return get(getAndSetAsync(newValue));
    }

    @Override
    public RFuture getAndSetAsync(double newValue) {
        return commandExecutor.writeAsync(getRawName(), DoubleCodec.INSTANCE, RedisCommands.GETSET_DOUBLE, getRawName(), BigDecimal.valueOf(newValue).toPlainString());
    }

    @Override
    public double incrementAndGet() {
        return get(incrementAndGetAsync());
    }

    @Override
    public RFuture incrementAndGetAsync() {
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.INCRBYFLOAT, getRawName(), 1);
    }

    @Override
    public double getAndIncrement() {
        return getAndAdd(1);
    }

    @Override
    public RFuture getAndIncrementAsync() {
        return getAndAddAsync(1);
    }

    @Override
    public double getAndDecrement() {
        return getAndAdd(-1);
    }

    @Override
    public RFuture getAndDecrementAsync() {
        return getAndAddAsync(-1);
    }

    @Override
    public void set(double newValue) {
        get(setAsync(newValue));
    }

    @Override
    public RFuture setAsync(double newValue) {
        return commandExecutor.writeAsync(getRawName(), StringCodec.INSTANCE, RedisCommands.SET, getRawName(), BigDecimal.valueOf(newValue).toPlainString());
    }

    public String toString() {
        return Double.toString(get());
    }

    @Override
    public int addListener(ObjectListener listener) {
        if (listener instanceof IncrByListener) {
            return addListener("__keyevent@*:incrby", (IncrByListener) listener, IncrByListener::onChange);
        }
        return super.addListener(listener);
    }

    @Override
    public RFuture addListenerAsync(ObjectListener listener) {
        if (listener instanceof IncrByListener) {
            return addListenerAsync("__keyevent@*:incrby", (IncrByListener) listener, IncrByListener::onChange);
        }
        return super.addListenerAsync(listener);
    }

    @Override
    public void removeListener(int listenerId) {
        removeListener(listenerId, "__keyevent@*:incrby");
        super.removeListener(listenerId);
    }

    @Override
    public RFuture removeListenerAsync(int listenerId) {
        return removeListenerAsync(listenerId, "__keyevent@*:incrby");
    }

}
    
    
    
    

    




    
    
    © 2015 - 2024 Weber Informatics LLC | Privacy Policy