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How to carry out data in flink from the definition of extension implementation, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, hope you can gain something.

Let's talk about the implementation process in combination with the actual case.

Let's first take a look at the timing diagram created.

As you can see from the figure above, to implement custom source and sink, you need to implement the following steps

Custom implementation of 1.ExternalCatalog

Custom implementation of 2.ConnectorDescriptor

3. Introduce flink kafka dependency

Custom implementation of 4.schema format (serialization and deserialization)

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