@Override public BytesRef writeToBytes() { long start = System.nanoTime(); int size = set.size(); BytesRef bytes = new BytesRef(new byte[HEADER_SIZE + (int) bytesUsed.get()]); // Encode encoding type Bytes.writeInt(bytes, this.getEncoding().ordinal()); // Encode flag bytes.bytes[bytes.offset++] = (byte) (this.isPruned() ? 1 : 0); // Encode size of the set Bytes.writeInt(bytes, size); // Encode longs BytesRef reusable = new BytesRef(); for (int i = 0; i < this.set.size(); i++) { this.set.get(i, reusable); Bytes.writeBytesRef(reusable, bytes); } logger.debug( "Serialized {} terms - took {} ms", this.size(), (System.nanoTime() - start) / 1000000); bytes.length = bytes.offset; bytes.offset = 0; return bytes; }
/** Return the memory usage of this object in bytes. */ public long ramBytesUsed() { return bytesUsed.get(); }