blueflood-core/src/main/java/com/rackspacecloud/blueflood/io/serializers/metrics/StringMetadataSerDes.java
private static void writeToOutputStream(Object obj, CodedOutputStream out) throws IOException {
        out.writeRawByte(STRING);
        out.writeStringNoTag((String)obj);
    }
private static void writeToOutputStream(Object obj, CodedOutputStream out) throws IOException {
        out.writeRawByte(STRING);
        out.writeStringNoTag((String)obj);
    }
writes object to CodedOutputStream.