Red Hat SummitRed Hat Camel K is deprecated
Red Hat Camel K is deprecated and the End of Life date for this product is June 30, 2025. For help migrating to the current go-to solution, Red Hat build of Apache Camel, see the Migration Guide.이 콘텐츠는 선택한 언어로 제공되지 않습니다.
Chapter 26. Has Header Filter Action
Filter based on the presence of one header
26.1. Configuration Options
The following table summarizes the configuration options available for the has-header-filter-action Kamelet:
| Property | Name | Description | Type | Default | Example |
|---|---|---|---|---|---|
| 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 |
|
Fields marked with an asterisk (*) are mandatory.
26.2. Dependencies
At runtime, the has-header-filter-action Kamelet relies upon the presence of the following dependencies:
- camel:core
- camel:kamelet
26.3. Usage
This section describes how you can use the has-header-filter-action.
26.3.1. Knative Action
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: mychannelapiVersion: 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: mychannel26.3.1.1. Prerequisite
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
-
Save the
has-header-filter-action-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f has-header-filter-action-binding.yaml
Copy to clipboardCopiedoc apply -f has-header-filter-action-binding.yaml
26.3.1.3. Procedure for using the Kamel CLI
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
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:mychannelThis command creates the KameletBinding in the current namespace on the cluster.
26.3.2. Kafka Action
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-topicapiVersion: 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-topic26.3.2.1. 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.
26.3.2.2. Procedure for using the cluster CLI
-
Save the
has-header-filter-action-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the action by using the following command:
oc apply -f has-header-filter-action-binding.yaml
Copy to clipboardCopiedoc apply -f has-header-filter-action-binding.yaml
26.3.2.3. Procedure for using the Kamel CLI
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
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-topicThis command creates the KameletBinding in the current namespace on the cluster.
26.4. Kamelet source file
https://github.com/openshift-integration/kamelet-catalog/has-header-filter-action.kamelet.yaml
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