Support for local Avro schema in CONSUMER/PRODUCER of kafka-file

[angelozerr]

Support for local Avro schema in CONSUMER/PRODUCER of kafka-file

Fixes #114

Signed-off-by: azerr [email protected]

[angelozerr]

The avro support starts working but it requires

• some work (clean code, manage cache for schema, write test and cocetc)
• and perhaps more feature (validation, hyperlink, completion for avro file path)

This PR provides :

• avsc file support (Avro Schema definition written in JSON format). When you create a *.avsc file you should have validation, completion (based on the avro JSON Schema).
• declare avro file path in key-format, value-format in kafka file PRODUCER,CONSUMER.

Here a sample:

• create the animals.avsc file:

{
    "type": "record",
    "fields": [
        {
            "name": "kind",
            "type": {
                "name": "animals_type",
                "type": "enum",
                "symbols": [
                    "CAT",
                    "DOG"
                ]
            }
        },
        {
            "name": "name",
            "type": "string"
        }
    ]
}

• create the animals.kafka file:

PRODUCER json-output
topic: topic_name
value-format: avro(animals.avsc)
{"kind": "CAT", "name": "Albert"}

###

CONSUMER consumer-group-id
topic: topic_name
from: earliest
value-format: avro(animals.avsc)

[fbricon]

build fails https://github.com/jlandersen/vscode-kafka/runs/2564287081?check_suite_focus=true

[fbricon]

Please fix the conflict

[fbricon]

use platform specific separator

[angelozerr]

Please fix the conflict

fixed

I need to write tests and docs yet.