public boolean isResetOffsetConfigured(SystemStream systemStream) {
    return containsSamzaProperty(systemStream, CONSUMER_RESET_OFFSET);
  }
Determines if a Samza property is specified.
See getSamzaProperty(SystemStream, String).

@param systemStream the SystemStream for the property value to check
@param property the samza property key (including the "samza." prefix); for example, for both
                "streams.streamId.samza.prop.key" and "systems.system.streams.streamName.samza.prop.key", this
                argument should have the value "samza.prop.key"
samza-core/src/main/java/org/apache/samza/config/StreamConfig.java