Invalid Topic names not handled

[jhedev]

If I try to use an invalid topic name, I get a KafkaDeserializationError.

Error code 17 is documented as "InvalidTopicName" here: https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-ErrorCodes

Took me a while to figure out what I am doing wrong. So it would be great if this error could be handled in order to provide a better error message.

Example:

λ> :set -XOverloadedStrings
λ> let k = mkKafkaState "foo" ("192.168.99.100", 9092)
λ> runKafka k $ produceMessages [TopicAndMessage "\"foo" (makeMessage "msg")]
Left (KafkaDeserializationError "Failed reading: invalid error code: 17\nEmpty call stack\n")

[tylerholien]

Thanks very much for finding this! I have the 0.9 error codes in a local branch so I hadn't noticed the bug. I'll keep working on getting my branch merged in.