@Override
  public String generateProcessorId(Config config) {
    return UUID.randomUUID().toString();
  }
Generates a String representation to identify the processor instance
This value can be representative of its current executing environment. It can also be custom-managed by the user.
<p>
<b>Note</b>: When more than one processor exist within the same JVM, there is no need to use a static counter in
this generator to adhere to the "$x_$y" format specified in {@link ProcessorIdGenerator} since each UUID is already
unique by itself

@param config Config instance
@return String Identifier for the processor
samza-core/src/main/java/org/apache/samza/runtime/UUIDGenerator.java