November 2017
Beginner to intermediate
290 pages
7h 34m
English
book
Learning Apache Apex
by Ananth Gundabattula, Thomas Weise, Munagala V. Ramanath, David Yan, Kenneth Knowles
Content preview from Learning Apache Apex
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Parser
Some input operators, like the Kafka input operator, will emit the message they receive as generic byte array or string and the next operator needs to turn it into a tuple according to the schema of the stream. The library contains a few parsers for common formats that can be used to turn incoming messages into POJO objects based on the configured schema.
- http://apex.apache.org/docs/malhar/operators/csvParserOperator/
- http://apex.apache.org/docs/malhar/operators/jsonParser/
Examples for CSV, JSON, fixed width, and XML parsers can be found at the following links:
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