com.taotao.cloud.cache.jetcache.stamp.AbstractStampManager Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of taotao-cloud-starter-cache-jetcache Show documentation
taotao-cloud-starter-cache-jetcache
The newest version!
/*
 * Copyright (c) 2020-2030, Shuigedeng ([email protected] & https://blog.taotaocloud.top/).
 *
 * 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
 *
 *      https://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.taotao.cloud.cache.jetcache.stamp;

import com.alicp.jetcache.AutoReleaseLock;
import com.alicp.jetcache.Cache;
import com.alicp.jetcache.anno.CacheType;
import com.taotao.cloud.cache.jetcache.exception.StampDeleteFailedException;
import com.taotao.cloud.cache.jetcache.exception.StampHasExpiredException;
import com.taotao.cloud.cache.jetcache.exception.StampMismatchException;
import com.taotao.cloud.cache.jetcache.exception.StampParameterIllegalException;
import com.taotao.cloud.cache.jetcache.utils.JetCacheUtils;
import java.time.Duration;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang3.ObjectUtils;

/**
 * 抽象Stamp管理
 *
 * @param  签章缓存对应Key值的类型。
 * @param  签章缓存存储数据，对应的具体存储值的类型，
 */
public abstract class AbstractStampManager implements StampManager {

    private static final Duration DEFAULT_EXPIRE = Duration.ofMinutes(30);

    private String cacheName;
    private CacheType cacheType;
    private Duration expire;
    private Cache cache;

    public AbstractStampManager(String cacheName) {
        this(cacheName, CacheType.BOTH);
    }

    public AbstractStampManager(String cacheName, CacheType cacheType) {
        this(cacheName, cacheType, DEFAULT_EXPIRE);
    }

    public AbstractStampManager(String cacheName, CacheType cacheType, Duration expire) {
        this.cacheName = cacheName;
        this.cacheType = cacheType;
        this.expire = expire;
        this.cache = JetCacheUtils.create(this.cacheName, this.cacheType, this.expire);
    }

    /**
     * 指定数据存储缓存
     *
     * @return {@link Cache}
     */
    protected Cache getCache() {
        return this.cache;
    }

    @Override
    public Duration getExpire() {
        return this.expire;
    }

    public void setExpire(Duration expire) {
        this.expire = expire;
    }

    @Override
    public boolean check(K key, V value) {
        if (ObjectUtils.isEmpty(value)) {
            throw new StampParameterIllegalException("Parameter Stamp value is null");
        }

        V storedStamp = this.get(key);
        if (ObjectUtils.isEmpty(storedStamp)) {
            throw new StampHasExpiredException("Stamp is invalid!");
        }

        if (ObjectUtils.notEqual(storedStamp, value)) {
            throw new StampMismatchException("Stamp is mismathch!");
        }

        return true;
    }

    @Override
    public V get(K key) {
        return this.getCache().get(key);
    }

    @Override
    public void delete(K key) throws StampDeleteFailedException {
        boolean result = this.getCache().remove(key);
        if (!result) {
            throw new StampDeleteFailedException("Delete Stamp From Storage Failed");
        }
    }

    @Override
    public void put(K key, V value, long expireAfterWrite, TimeUnit timeUnit) {
        this.getCache().put(key, value, expireAfterWrite, timeUnit);
    }

    @Override
    public AutoReleaseLock lock(K key, long expire, TimeUnit timeUnit) {
        return this.getCache().tryLock(key, expire, timeUnit);
    }

    @Override
    public boolean lockAndRun(K key, long expire, TimeUnit timeUnit, Runnable action) {
        return this.getCache().tryLockAndRun(key, expire, timeUnit, action);
    }
}