com.litongjava.satoken.SaTokenDaoRedis Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of java-db Show documentation
Java Database
There is a newer version: 1.4.7
package com.litongjava.satoken;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import com.litongjava.redis.RedisCache;
import com.litongjava.redis.Redis;
import com.litongjava.redis.serializer.ISerializer;

import cn.dev33.satoken.dao.SaTokenDao;
import cn.dev33.satoken.util.SaFoxUtil;
import redis.clients.jedis.Jedis;

public class SaTokenDaoRedis implements SaTokenDao {

  protected RedisCache redis;
  protected ISerializer serializer;
  /**
   * 标记：是否已初始化成功
   */
  public boolean isInit;

  public SaTokenDaoRedis(String confName) {
    redis = Redis.use(confName);
    serializer = new SaJdkSerializer();
  }

  /**
   * 获取Value，如无返空
   */
  @Override
  public String get(String key) {
    Jedis jedis = getJedis();
    try {
      return jedis.get(key);
    } finally {
      close(jedis);
    }
  }

  /**
   * 写入Value，并设定存活时间 (单位: 秒)
   */
  @Override
  public void set(String key, String value, long timeout) {
    if (timeout == 0 || timeout <= SaTokenDao.NOT_VALUE_EXPIRE) {
      return;
    }
    Jedis jedis = getJedis();
    try {
      if (timeout == SaTokenDao.NEVER_EXPIRE) {
        jedis.set(key, value);
      } else {
        jedis.setex(key, timeout, value);
      }
    } finally {
      close(jedis);
    }
  }

  /**
   * 修改指定key-value键值对 (过期时间不变)
   */
  @Override
  public void update(String key, String value) {
    long expire = getTimeout(key);
    // -2 = 无此键
    if (expire == SaTokenDao.NOT_VALUE_EXPIRE) {
      return;
    }
    this.set(key, value, expire);
  }

  /**
   * 删除Value
   */
  @Override
  public void delete(String key) {
    Jedis jedis = getJedis();
    try {
      jedis.del(key);
    } finally {
      close(jedis);
    }
  }

  /**
   * 获取Value的剩余存活时间 (单位: 秒)
   */
  @Override
  public long getTimeout(String key) {
    Jedis jedis = getJedis();
    try {
      return jedis.ttl(key);
    } finally {
      close(jedis);
    }
  }

  /**
   * 修改Value的剩余存活时间 (单位: 秒)
   */
  @Override
  public void updateTimeout(String key, long timeout) {
    // 判断是否想要设置为永久
    if (timeout == SaTokenDao.NEVER_EXPIRE) {
      long expire = getTimeout(key);
      if (expire == SaTokenDao.NEVER_EXPIRE) {
        // 如果其已经被设置为永久，则不作任何处理
      } else {
        // 如果尚未被设置为永久，那么再次set一次
        this.set(key, this.get(key), timeout);
      }
      return;
    }
    Jedis jedis = getJedis();
    try {
      jedis.expire(key, timeout);
    } finally {
      close(jedis);
    }
  }

  /**
   * 获取Object，如无返空
   */
  @Override
  public Object getObject(String key) {
    Jedis jedis = getJedis();
    try {
      return valueFromBytes(jedis.get(keyToBytes(key)));
    } finally {
      close(jedis);
    }
  }

  /**
   * 写入Object，并设定存活时间 (单位: 秒)
   */
  @Override
  public void setObject(String key, Object object, long timeout) {
    if (timeout == 0 || timeout <= SaTokenDao.NOT_VALUE_EXPIRE) {
      return;
    }
    Jedis jedis = getJedis();
    try {
      if (timeout == SaTokenDao.NEVER_EXPIRE) {
        jedis.set(keyToBytes(key), valueToBytes(object));
      } else {
        jedis.setex(keyToBytes(key), timeout, valueToBytes(object));
      }
    } finally {
      close(jedis);
    }
  }

  /**
   * 更新Object (过期时间不变)
   */
  @Override
  public void updateObject(String key, Object object) {
    long expire = getObjectTimeout(key);
    // -2 = 无此键
    if (expire == SaTokenDao.NOT_VALUE_EXPIRE) {
      return;
    }
    this.setObject(key, object, expire);
  }

  /**
   * 删除Object
   */
  @Override
  public void deleteObject(String key) {
    Jedis jedis = getJedis();
    try {
      jedis.del(keyToBytes(key));
    } finally {
      close(jedis);
    }
  }

  @Override
  public long getObjectTimeout(String key) {
    Jedis jedis = getJedis();
    try {
      return jedis.ttl(keyToBytes(key));
    } finally {
      close(jedis);
    }
  }

  /**
   * 修改Object的剩余存活时间 (单位: 秒)
   */
  @Override
  public void updateObjectTimeout(String key, long timeout) {
    // 判断是否想要设置为永久
    if (timeout == SaTokenDao.NEVER_EXPIRE) {
      long expire = getObjectTimeout(key);
      if (expire == SaTokenDao.NEVER_EXPIRE) {
        // 如果其已经被设置为永久，则不作任何处理
      } else {
        // 如果尚未被设置为永久，那么再次set一次
        this.setObject(key, this.getObject(key), timeout);
      }
      return;
    }
    Jedis jedis = getJedis();
    try {
      jedis.expire(keyToBytes(key), timeout);
    } finally {
      close(jedis);
    }
  }

  /**
   * 搜索数据
   */
  @Override
  public List searchData(String prefix, String keyword, int start, int size, boolean sortType) {
    Set keys = redis.keys(prefix + "*" + keyword + "*");
    List list = new ArrayList<>(keys);
    return SaFoxUtil.searchList(list, start, size, sortType);
  }

  public Jedis getJedis() {
    return redis.getJedis();
  }

  public void close(Jedis jedis) {
    if (jedis != null)
      jedis.close();
  }

  protected byte[] keyToBytes(Object key) {
    return key.toString().getBytes();
  }

  protected byte[] valueToBytes(Object value) {
    return serializer.valueToBytes(value);
  }

  protected Object valueFromBytes(byte[] bytes) {
    return serializer.valueFromBytes(bytes);
  }
}