Method writeTo

output/java_guava/1.4.19/BloomFilter.java:488–501

Writes this BloomFilter to an output stream, with a custom format (not Java serialization). This has been measured to save at least 400 bytes compared to regular serialization. Use plain #readFrom(InputStream, Funnel) to reconstruct the written BloomFilter.

(OutputStream out)

  public void writeTo(OutputStream out) throws IOException {
    // Serial form:
    // 1 signed byte for the strategy
    // 1 unsigned byte for the number of hash functions
    // 1 big endian int, the number of longs in our bitset
    // N big endian longs of our bitset
    DataOutputStream dout = new DataOutputStream(out);
    dout.writeByte(SignedBytes.checkedCast(strategy.ordinal()));
    dout.writeByte(UnsignedBytes.checkedCast(numHashFunctions)); // note: checked at the c'tor
    dout.writeInt(bits.data.length);
    for (long value : bits.data) {
      dout.writeLong(value);
    }
  }

  /**
   * Reads a byte stream, which was written by {@linkplain #writeTo(OutputStream)}, into a