此内容没有您所选择的语言版本。
Chapter 44. Protobuf Serialize Action
Serialize payload to Protobuf
44.1. Configuration Options
The following table summarizes the configuration options available for the protobuf-serialize-action
Kamelet:
Property | Name | Description | Type | Default | Example |
---|---|---|---|---|---|
schema * | Schema | The Protobuf schema to use during serialization (as single-line) | string |
|
Fields marked with an asterisk (*) are mandatory.
44.2. Dependencies
At runtime, the protobuf-serialize-action
Kamelet relies upon the presence of the following dependencies:
- mvn:org.apache.camel.kamelets:camel-kamelets-utils:1.0.0.fuse-800048-redhat-00001
- camel:kamelet
- camel:core
- camel:jackson-protobuf
44.3. Usage
This section describes how you can use the protobuf-serialize-action
.
44.3.1. Knative Action
You can use the protobuf-serialize-action
Kamelet as an intermediate step in a Knative binding.
protobuf-serialize-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1 kind: KameletBinding metadata: name: protobuf-serialize-action-binding spec: source: ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: timer-source properties: message: '{"first":"Ada","last":"Lovelace"}' steps: - ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: json-deserialize-action - ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: protobuf-serialize-action properties: schema: "message Person { required string first = 1; required string last = 2; }" sink: ref: kind: Channel apiVersion: messaging.knative.dev/v1 name: mychannel
44.3.1.1. Prerequisite
Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.
44.3.1.2. Procedure for using the cluster CLI
-
Save the
protobuf-serialize-action-binding.yaml
file to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f protobuf-serialize-action-binding.yaml
44.3.1.3. Procedure for using the Kamel CLI
Configure and run the action by using the following command:
kamel bind "timer-source?message={\"first\":\"Ada\",\"last\":\"Lovelace\"}" --step json-deserialize-action --step protobuf-serialize-action -p "step-1.schema=message Person { required string first = 1; required string last = 2; }" channel:mychannel
This command creates the KameletBinding in the current namespace on the cluster.
44.3.2. Kafka Action
You can use the protobuf-serialize-action
Kamelet as an intermediate step in a Kafka binding.
protobuf-serialize-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1 kind: KameletBinding metadata: name: protobuf-serialize-action-binding spec: source: ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: timer-source properties: message: '{"first":"Ada","last":"Lovelace"}' steps: - ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: json-deserialize-action - ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: protobuf-serialize-action properties: schema: "message Person { required string first = 1; required string last = 2; }" sink: ref: kind: KafkaTopic apiVersion: kafka.strimzi.io/v1beta1 name: my-topic
44.3.2.1. Prerequisites
Ensure that you’ve installed the AMQ Streams operator in your OpenShift cluster and created a topic named my-topic
in the current namespace. Make also sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.
44.3.2.2. Procedure for using the cluster CLI
-
Save the
protobuf-serialize-action-binding.yaml
file to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f protobuf-serialize-action-binding.yaml
44.3.2.3. Procedure for using the Kamel CLI
Configure and run the action by using the following command:
kamel bind "timer-source?message={\"first\":\"Ada\",\"last\":\"Lovelace\"}" --step json-deserialize-action --step protobuf-serialize-action -p "step-1.schema=message Person { required string first = 1; required string last = 2; }" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic
This command creates the KameletBinding in the current namespace on the cluster.