public HashCode hash(HashFunction hashFunction) throws IOException {
    Hasher hasher = hashFunction.newHasher();
    copyTo(Funnels.asOutputStream(hasher));
    return hasher.hash();
  }
public HashCode hash(HashFunction hashFunction) throws IOException {
    Hasher hasher = hashFunction.newHasher();
    copyTo(Funnels.asOutputStream(hasher));
    return hasher.hash();
  }
public HashCode hash ( HashFunction hashFunction ) throws IOException { Hasher hasher = hashFunction . newHasher ( ) ; copyTo ( Funnels . asOutputStream ( hasher ) ) ; return hasher . hash ( ) ; }
Hashes the contents of this byte source using the given hash function.

@throws IOException if an I/O error occurs while reading from this source
Hashes the contents of this byte source using the given hash function .