org.faster.cache.RedisCacheService.java Source code

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Here is the source code for org.faster.cache.RedisCacheService.java

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/*
 * Copyright (c) 2013 @iSQWEN. All rights reserved.
 *
 * 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.faster.cache;

import org.apache.commons.lang3.time.StopWatch;
import org.springframework.data.redis.core.RedisTemplate;

import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * Cache ?? Redis 
 *
 * @author sqwen
 */
public class RedisCacheService extends AbstractCacheService {

    @SuppressWarnings("rawtypes")
    private RedisTemplate redis;

    @SuppressWarnings("rawtypes")
    public void setRedis(RedisTemplate redis) {
        this.redis = redis;
    }

    @Override
    @SuppressWarnings("unchecked")
    protected void doPutInCache(String key, int expiration, Object obj) {
        redis.opsForValue().set(key, obj);
        if (expiration > 0) {
            redis.expire(key, expiration, TimeUnit.SECONDS);
        }
    }

    @Override
    protected Object doGetFromCache(String internalKey, int expiration, CacheMissHandler handler) {
        StopWatch sw = null;
        if (log.isDebugEnabled()) {
            sw = new StopWatch();
            sw.start();
            log.debug("Getting from Redis Cache[key={}]...", internalKey);
        }

        Object ret = redis.opsForValue().get(internalKey);
        if (ret != null) {
            if (log.isDebugEnabled()) {
                log.debug("Redis Cache hit[key={}]. ({} ms)", internalKey, sw.getTime());
            }
            return ret;
        }

        if (log.isDebugEnabled()) {
            log.debug("Redis cache miss[key={}].", internalKey);
        }

        return directSearch(internalKey, expiration, handler);
    }

    @Override
    protected void doFlush(String key) throws Exception {
        redis.delete(key);
    }

    @Override
    protected void doFlush(List<String> internalKeys) throws Exception {
        redis.delete(internalKeys);
    }

}