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Chapter 39. Message Timestamp Router Action

Update the topic field as a function of the original topic name and the record’s timestamp field.

39.1. Configuration Options
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The following table summarizes the configuration options available for the message-timestamp-router-action Kamelet:

Expand
PropertyNameDescriptionTypeDefaultExample

timestampKeys *

Timestamp Keys

Comma separated list of Timestamp keys. The timestamp is taken from the first found field.

string

  

timestampFormat

Timestamp Format

Format string for the timestamp that is compatible with java.text.SimpleDateFormat.

string

"yyyyMMdd"

 

timestampKeyFormat

Timestamp Keys Format

Format of the timestamp keys. Possible values are 'timestamp' or any format string for the timestamp that is compatible with java.text.SimpleDateFormat. In case of 'timestamp' the field will be evaluated as milliseconds since 1970, so as a UNIX Timestamp.

string

"timestamp"

 

topicFormat

Topic Format

Format string which can contain '$[topic]' and '$[timestamp]' as placeholders for the topic and timestamp, respectively.

string

"topic-$[timestamp]"

 
Note

Fields marked with an asterisk (*) are mandatory.

39.2. Dependencies
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At runtime, the message-timestamp-router-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:jackson
  • camel:kamelet
  • camel:core

39.3. Usage
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This section describes how you can use the message-timestamp-router-action.

39.3.1. Knative Action
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You can use the message-timestamp-router-action Kamelet as an intermediate step in a Knative binding.

message-timestamp-router-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: message-timestamp-router-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: message-timestamp-router-action
    properties:
      timestampKeys: "The Timestamp Keys"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
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39.3.1.1. Prerequisite
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Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

39.3.1.2. Procedure for using the cluster CLI
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  1. Save the message-timestamp-router-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 message-timestamp-router-action-binding.yaml
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39.3.1.3. Procedure for using the Kamel CLI
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Configure and run the action by using the following command: 

kamel bind timer-source?message=Hello --step message-timestamp-router-action -p "step-0.timestampKeys=The Timestamp Keys" channel:mychannel
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This command creates the KameletBinding in the current namespace on the cluster.

39.3.2. Kafka Action
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You can use the message-timestamp-router-action Kamelet as an intermediate step in a Kafka binding.

message-timestamp-router-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: message-timestamp-router-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: message-timestamp-router-action
    properties:
      timestampKeys: "The Timestamp Keys"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
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39.3.2.1. Prerequisites
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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.

39.3.2.2. Procedure for using the cluster CLI
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  1. Save the message-timestamp-router-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 message-timestamp-router-action-binding.yaml
    Copy to Clipboard Toggle word wrap

39.3.2.3. Procedure for using the Kamel CLI
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Configure and run the action by using the following command: 

kamel bind timer-source?message=Hello --step message-timestamp-router-action -p "step-0.timestampKeys=The Timestamp Keys" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic
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This command creates the KameletBinding in the current namespace on the cluster.

39.4. Kamelet source file
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https://github.com/openshift-integration/kamelet-catalog/tree/kamelet-catalog-1.8//message-timestamp-router-action.kamelet.yaml

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