Esempio n. 1
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  @Override
  public boolean setCache(CacheSelector cacheSelector, Object cacheValue) throws Exception {
    long timeout = cacheSelector.getTimeout();
    String filePath = this.getRealFilePath(cacheSelector.getCacheKey());
    boolean isSave =
        FileOperate.saveObjectToFile(filePath, new FileCacheObject(timeout, cacheValue));
    if (isSave && timeout > 0) {
      FileCacheMonitor.getInstance().setFileCacheTime(filePath, timeout);
    }

    return isSave;
  }
Esempio n. 2
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 @Override
 public int updateCache(CacheSelector cacheSelector) throws Exception {
   // 如果只有这一层则在该层中更新
   if (null == this.getNextCache()) {
     return this.setCache(cacheSelector, cacheSelector.getSelectorValue()) ? 1 : 0;
   } else {
     return 0;
   }
 }
Esempio n. 3
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  @Override
  public int deleteCache(CacheSelector cacheSelector) throws Exception {
    String cacheId = cacheSelector.getCacheKey();
    String filePath = this.getRealFilePath(cacheId);

    File f = new File(filePath);
    // 文件缓存不存在则直接返回已删除
    if (!f.exists()) {
      return 1;
    } else {
      return f.delete() ? 1 : 0;
    }
  }
Esempio n. 4
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  @Override
  public Object getCache(CacheSelector cacheSelector) throws Exception {
    File file = new File(this.getRealFilePath(cacheSelector.getCacheKey()));
    if (!file.exists()) {
      return null;
    }

    Object fileObj = FileOperate.getFileObject(file); // 文件中保存的对象
    Object fileStorageObject = null; // 文件中保存的对象
    if (null != fileObj && fileObj instanceof FileCacheObject) {
      FileCacheObject fcObject = (FileCacheObject) fileObj;
      // 缓存未过期才能获取对象
      if (!fcObject.isCacheExpire()) {
        fileStorageObject = fcObject.getStorageObject();
      }
    }

    // 如果不存在或已过期则删除
    if (null == fileStorageObject) {
      file.delete();
    }

    return fileStorageObject;
  }