001/**
002 * Copyright (c) 2015-2022, Michael Yang 杨福海 (fuhai999@gmail.com).
003 * <p>
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * <p>
008 * http://www.apache.org/licenses/LICENSE-2.0
009 * <p>
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package io.jboot.objects.counter.impl;
017
018import io.jboot.Jboot;
019import io.jboot.objects.counter.JbootCounter;
020import io.jboot.support.redis.JbootRedis;
021import io.jboot.utils.StrUtil;
022
023/**
024 * @author michael yang (fuhai999@gmail.com)
025 * @Date: 2020/3/7
026 */
027public class JbootRedisCounter implements JbootCounter {
028
029    private JbootRedis redis = Jboot.getRedis();
030    private String name;
031
032    public JbootRedisCounter(String name) {
033        this.name = name;
034    }
035
036    @Override
037    public Long increment() {
038        return redis.incr(name);
039    }
040
041    @Override
042    public Long decrement() {
043        return redis.decr(name);
044    }
045
046    @Override
047    public Long get() {
048        String value = redis.getWithoutSerialize(name);
049        return StrUtil.isNotBlank(value) ? null : Long.valueOf(value);
050    }
051
052    @Override
053    public void set(long newValue) {
054        redis.setWithoutSerialize(name, newValue);
055    }
056}