public TopicListSubscriber()

in flume-kafka-source/src/main/java/org/apache/flume/source/kafka/KafkaSource.java [174:176]


    public TopicListSubscriber(String commaSeparatedTopics) {
      this.topicList = Arrays.asList(commaSeparatedTopics.split("^\\s+|\\s*,\\s*|\\s+$"));
    }