private void readObject(ObjectInputStream in) throws IOException {
   short version = in.readShort();
   switch (version) {
     case 0x0001:
       this.value = in.readFloat();
       break;
     default:
       throw new UnsupportedVersionException(this, version);
   }
 }
示例#2
0
  /**
   * Reads a file from a given InputStream, where the hash bundles are specified. Make sure to
   * generate it first and make sure to re-use it for search.
   *
   * @param inputStream to access the data, most likely a File on a hard disk
   * @return
   * @throws IOException
   */
  public static double[][][] readHashFunctions(InputStream inputStream) throws IOException {
    ObjectInputStream ois = new ObjectInputStream(new GZIPInputStream(inputStream));
    int bits = ois.readInt();
    int dimensions = ois.readInt();
    int numFunctionBundles = ois.readInt();

    double[][][] hashFunctions = new double[numFunctionBundles][bits][dimensions];
    for (int i = 0; i < hashFunctions.length; i++) {
      double[][] functionBundle = hashFunctions[i];
      for (int j = 0; j < functionBundle.length; j++) {
        double[] bitFunctions = functionBundle[j];
        for (int k = 0; k < bitFunctions.length; k++) {
          bitFunctions[k] = ois.readFloat();
        }
      }
    }
    BitSampling.hashes = hashFunctions;
    return hashFunctions;
  }