oscacheimp.java

来自「一个jsp写的bbs」· Java 代码 · 共 98 行

package com.laoer.bbscs.service.imp;

import com.laoer.bbscs.service.Cache;
import com.opensymphony.oscache.general.*;
import com.opensymphony.oscache.base.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.*;
import org.springframework.core.io.*;

/**
 * <p>Title: Tianyi BBS</p>
 *
 * <p>Description: BBSCS</p>
 *
 * <p>Copyright: Copyright (c) 2006</p>
 *
 * <p>Company: Laoer.com</p>
 *
 * @author Gong Tianyi
 * @version 7.0
 */
public class OsCacheImp
    implements Cache {

  private static final Log logger = LogFactory.getLog(OsCacheImp.class);

  private GeneralCacheAdministrator admin;

  public OsCacheImp() {
    admin = new GeneralCacheAdministrator();
  }

  public OsCacheImp(String profile) {
    Properties properties = new Properties();
    ClassPathResource classPathResource = new ClassPathResource(profile);
    try {
      logger.info("Init Cache...");
      properties.load(classPathResource.getInputStream());
      admin = new GeneralCacheAdministrator(properties);
    }
    catch (Exception ex) {
      logger.error(ex);
      admin = new GeneralCacheAdministrator();
    }
  }

  /**
   *
   * @param key Object
   * @param value Object
   * @todo Implement this com.laoer.bbscs.service.Cache method
   */
  public void add(Object key, Object value) {
    //logger.info("Add into cache [Key:" + key + " Value:" + value + "]");
    this.admin.putInCache(String.valueOf(key), value);
  }

  /**
   *
   * @param key Object
   * @return java.lang.Object
   * @todo Implement this com.laoer.bbscs.service.Cache method
   */
  public Object get(Object key) {
    try {
      //logger.info("Get from cache [Key:" + key + "]");
      return this.admin.getFromCache(String.valueOf(key));
    }
    catch (NeedsRefreshException ex) {
      //logger.info("Object not in cache, return null");
      this.admin.cancelUpdate(String.valueOf(key));
      return null;
    }
  }

  /**
   *
   * @param key Object
   * @todo Implement this com.laoer.bbscs.service.Cache method
   */
  public void remove(Object key) {
    //logger.info("Remove from cache [Key:" + key + "]");
    this.admin.flushEntry(key.toString());
  }

  /**
   *
   * @todo Implement this com.laoer.bbscs.service.Cache method
   */
  public void removeAll() {
    //logger.info("Remove all");
    this.admin.flushAll();
  }
}