resolve pojo schema action Resolve Schema Action

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Resolves schema from given mime type and payload. Sets the resolved schema, the schema type and its content class as properties for later reference.

Configuration Options

The following table summarizes the configuration options available for the resolve-pojo-schema-action Kamelet:

Property Name Description Type Default Example

contentClass

Content Class

Type information of the content object. Fully qualified class name.

string

org.apache.camel.content.Foo

mimeType

Mime Type

The mime type to determine the schema resolver implementation that should perform the operation.

string

application/json

application/json

schema

Schema

Optional schema content (as single-line, using JSON format).

string

targetMimeType

Target Mime Type

Additional mime type information used to determine the schema resolver. Usually only used in combination with mime type "application/x-java-object".

string

application/json

Dependencies

At runtime, the resolve-pojo-schema-action Kamelet relies upon the presence of the following dependencies:

  • mvn:org.apache.camel.kamelets:camel-kamelets-utils:4.6.0-SNAPSHOT

  • camel:kamelet

  • camel:core

  • camel:jackson-avro

  • camel:jackson-protobuf

Camel JBang usage

Prerequisites

  • You’ve installed JBang.

  • You have executed the following command:

jbang app install camel@apache/camel

Supposing you have a file named route.yaml with this content:

- route:
    from:
      uri: "kamelet:timer-source"
      parameters:
        period: 10000
        message: 'test'
      steps:
        - to:
            uri: "kamelet:log-sink"

You can now run it directly through the following command

camel run route.yaml

Camel K Environment Usage

This section describes how you can use the resolve-pojo-schema-action.

Knative action

You can use the resolve-pojo-schema-action Kamelet as an intermediate step in a Knative binding.

resolve-pojo-schema-action-pipe.yaml
apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: resolve-pojo-schema-action-pipe
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: kafka-source
      properties:
        bootstrapServers: localhost:9092
        topic: mytopic
        user: kafka
        password: kafka123!
  steps:
    - ref:
        kind: Kamelet
        apiVersion: camel.apache.org/v1
        name: resolve-pojo-schema-action
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the resolve-pojo-schema-action-pipe.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command:

    kubectl apply -f resolve-pojo-schema-action-pipe.yaml

Procedure for using the Kamel CLI

Configure and run the action by using the following command:

kamel bind channel:mychannel  resolve-pojo-schema-action

This command creates the Kamelet Pipe in the current namespace on the cluster.

Kafka action

You can use the resolve-pojo-schema-action Kamelet as an intermediate step in a Kafka binding.

resolve-pojo-schema-action-pipe.yaml
apiVersion: camel.apache.org/v1
kind: Pipe
metadata:
  name: resolve-pojo-schema-action-pipe
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: kafka-source
      properties:
        bootstrapServers: localhost:9092
        topic: mytopic
        user: kafka
        password: kafka123!
  steps:
    - ref:
        kind: Kamelet
        apiVersion: camel.apache.org/v1
        name: resolve-pojo-schema-action
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic

Prerequisites

  • You’ve installed Strimzi.

  • You’ve created a topic named my-topic in the current namespace.

  • You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the resolve-pojo-schema-action-pipe.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command:

    kubectl apply -f resolve-pojo-schema-action-pipe.yaml

Procedure for using the Kamel CLI

Configure and run the action by using the following command:

kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic  resolve-pojo-schema-action

This command creates the Kamelet Pipe in the current namespace on the cluster.

Kamelet source file

https://github.com/apache/camel-kamelets/blob/main/kamelets/resolve-pojo-schema-action.kamelet.yaml

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