Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package org.shareok.data.redis; import org.apache.log4j.Logger; import org.shareok.data.redis.exceptions.FileDownloadPathNotExistException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.connection.jedis.JedisConnectionFactory; import org.springframework.data.redis.core.BoundHashOperations; import org.springframework.data.redis.core.StringRedisTemplate; /** * Stores, updates configuration information. * * @author Tao Zhao */ public class RedisConfigImpl implements RedisConfig { private static final Logger logger = Logger.getLogger(UserDaoImpl.class); @Autowired private JedisConnectionFactory connectionFactory; @Autowired private StringRedisTemplate redisTemplate; @Override public void updateConfig(String configInfoType, String value) { try { BoundHashOperations<String, String, String> configOps = redisTemplate .boundHashOps(RedisUtil.getConfigQueryKey()); configOps.put(configInfoType, value); } catch (Exception ex) { logger.error("Cannot update config info @ " + configInfoType + " with value = " + value, ex); } } @Override public boolean getRegistrationConfig() { String allowRegistration; try { BoundHashOperations<String, String, String> configOps = redisTemplate .boundHashOps(RedisUtil.getConfigQueryKey()); if (configOps.hasKey("registrationConfig")) { allowRegistration = (String) configOps.get("registrationConfig"); } else { allowRegistration = "false"; configOps.put("registrationConfig", "false"); } return Boolean.valueOf(allowRegistration); } catch (Exception ex) { logger.error("Cannot get allow registration info ", ex); return false; } } @Override public String getFileDownloadPathByNameKey(String nameKey) { String path = null; try { BoundHashOperations<String, String, String> fileDownloadPathsOps = redisTemplate .boundHashOps("file_download_paths"); if (fileDownloadPathsOps.hasKey(nameKey)) { return (String) fileDownloadPathsOps.get(nameKey); } else { throw new FileDownloadPathNotExistException( "The key " + nameKey + " for file downloading does not exist!"); } } catch (Exception ex) { logger.error("Cannot find the download path ", ex); } return path; } }