Red Hat Summit Red Hat SummitApoyoConsolaDesarrolladoresIniciar una pruebaContacto

Este contenido no está disponible en el idioma seleccionado.

Chapter 26. Has Header Filter Action

Filter based on the presence of one header

26.1. Configuration Options
Copiar enlace

The following table summarizes the configuration options available for the has-header-filter-action Kamelet:

Expand
PropertyNameDescriptionTypeDefaultExample

name *

Header Name

The header name to evaluate. The header name must be passed by the source Kamelet. For Knative only, if you are using Cloud Events, you must include the CloudEvent (ce-) prefix in the header name.

string

 

"headerName"

Note

Fields marked with an asterisk (*) are mandatory.

26.2. Dependencies
Copiar enlace

At runtime, the has-header-filter-action Kamelet relies upon the presence of the following dependencies:

  • camel:core
  • camel:kamelet

26.3. Usage
Copiar enlace

This section describes how you can use the has-header-filter-action.

26.3.1. Knative Action
Copiar enlace

You can use the has-header-filter-action Kamelet as an intermediate step in a Knative binding.

has-header-filter-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: has-header-filter-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-header-action
    properties:
      name: "my-header"
      value: "my-value"
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: has-header-filter-action
    properties:
      name: "my-header"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
Copy to Clipboard Toggle word wrap

26.3.1.1. Prerequisite
Copiar enlace

Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

26.3.1.2. Procedure for using the cluster CLI
Copiar enlace

  1. Save the has-header-filter-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command: 

    oc apply -f has-header-filter-action-binding.yaml
    Copy to Clipboard Toggle word wrap

26.3.1.3. Procedure for using the Kamel CLI
Copiar enlace

Configure and run the action by using the following command: 

kamel bind --name has-header-filter-action-binding timer-source?message="Hello" --step insert-header-action -p "step-0.name=my-header" -p "step-0.value=my-value" --step has-header-filter-action -p "step-1.name=my-header" channel:mychannel
Copy to Clipboard Toggle word wrap

This command creates the KameletBinding in the current namespace on the cluster.

26.3.2. Kafka Action
Copiar enlace

You can use the has-header-filter-action Kamelet as an intermediate step in a Kafka binding.

has-header-filter-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: has-header-filter-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-header-action
    properties:
      name: "my-header"
      value: "my-value"
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: has-header-filter-action
    properties:
      name: "my-header"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
Copy to Clipboard Toggle word wrap

26.3.2.1. Prerequisites
Copiar enlace

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.

26.3.2.2. Procedure for using the cluster CLI
Copiar enlace

  1. Save the has-header-filter-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command: 

    oc apply -f has-header-filter-action-binding.yaml
    Copy to Clipboard Toggle word wrap

26.3.2.3. Procedure for using the Kamel CLI
Copiar enlace

Configure and run the action by using the following command: 

kamel bind --name has-header-filter-action-binding timer-source?message="Hello" --step insert-header-action -p "step-0.name=my-header" -p "step-0.value=my-value" --step has-header-filter-action -p "step-1.name=my-header" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic
Copy to Clipboard Toggle word wrap

This command creates the KameletBinding in the current namespace on the cluster.

26.4. Kamelet source file
Copiar enlace

https://github.com/openshift-integration/kamelet-catalog/has-header-filter-action.kamelet.yaml

Volver arriba
Red Hat logoGithubredditYoutubeTwitter

Aprender

Pruebe, compre y venda

Comunidades

Acerca de la documentación de Red Hat

Ayudamos a los usuarios de Red Hat a innovar y alcanzar sus objetivos con nuestros productos y servicios con contenido en el que pueden confiar. Explore nuestras recientes actualizaciones.

Hacer que el código abierto sea más inclusivo

Red Hat se compromete a reemplazar el lenguaje problemático en nuestro código, documentación y propiedades web. Para más detalles, consulte el Blog de Red Hat.

Acerca de Red Hat

Ofrecemos soluciones reforzadas que facilitan a las empresas trabajar en plataformas y entornos, desde el centro de datos central hasta el perímetro de la red.

Theme

© 2025 Red Hat