kafka-word-count

Exercise: Word Count Per Record

Write a new Kafka application WordCountPerLineApp (using Kafka Producer and Consumer APIs) that does the following:

• Consume records from a topic, e.g. input Counts words (in the value of a record)
• Produce records with the unique words and their occurrences (counts)
• A record key -> hello hello world gives a record with the following value hello -> 2, world -> 1 (and the same key as in the input record)

(EXTRA)

• Produces as many records as there are unique words in the input record with their occurrences (counts)
• A record key -> hello hello world gives two records in the output, i.e. (hello, 2) and (world, 1 (as (key, value))