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From Raja.Aravapalli <Raja.Aravapa...@target.com>
Subject Re: [EXTERNAL] Re: schema to just read as "byte[] array" from kafka
Date Mon, 07 Aug 2017 18:28:04 GMT

Thank you very much Chao. That helps me.


Regards,
Raja.

From: Chao Wang <chaowang@wustl.edu>
Date: Monday, August 7, 2017 at 12:28 PM
To: Raja Aravapalli <Raja.Aravapalli@target.com>
Cc: "user@flink.apache.org" <user@flink.apache.org>
Subject: [EXTERNAL] Re: schema to just read as "byte[] array" from kafka


A quick update, in class MyDe:
public static class MyDe<T> extends AbstractDeserializationSchema<byte[]> {
  @Override
  public byte[] deserialize(byte[] arg0) {
    // Perform deserialization here, if needed;
    // otherwise, probably we can simply return arg0 as raw byte[]
    return arg0;
  }
}


Chao
On 08/07/2017 12:23 PM, Chao Wang wrote:

Hi Raja,

I just happened to work on the similar thing, and here is how to do it in general, I think
(In my case, I did a bit more, to deserialize a tuple of <byte[],byte[]>) :
FlinkKafkaConsumer010<byte[]> consumer = new FlinkKafkaConsumer010<>("topic_name",
new MyDe<byte[]>(), properties);

and for MyDe the schema:

public static class MyDe<T> extends AbstractDeserializationSchema<byte[]> {
  @Override
  public byte[] deserialize(byte[] arg0) {
    return new e;
  }
}


Chao
On 08/07/2017 10:47 AM, Raja.Aravapalli wrote:

Hi

I am using SimpleStringSchema to deserialize a message read from kafka, but need some help
to know if there is any schema available I can use rather than “SimpleStringSchema()”
and instead just get “byte[]” without any deserialization happening!

Below is code I am currently using, but instead of SimpleStringSchema() which is giving me
Strings, but I want the a raw byte array Byte[]:

FlinkKafkaConsumer08<String> myConsumer = new FlinkKafkaConsumer08<>("xxx_topic",
new SimpleStringSchema(), properties);


Thanks a lot.


Regards,
Raja.



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