AWS 2 CloudWatch

Since Camel 3.1

Only producer is supported

The AWS2 Cloudwatch component allows messages to be sent to an Amazon CloudWatch metrics. The implementation of the Amazon API is provided by the AWS SDK.

Prerequisites

You must have a valid Amazon Web Services developer account, and be signed up to use Amazon CloudWatch. More information is available at Amazon CloudWatch.

The AWS2 CW component is not supported in OSGI

URI Format

aws2-cw://namespace[?options]

The metrics will be created if they don’t already exists.
You can append query options to the URI in the following format, ?options=value&option2=value&…​

URI Options

The AWS 2 CloudWatch component supports 14 options, which are listed below.

Name Description Default Type

amazonCwClient (producer)

To use the AmazonCloudWatch as the client

CloudWatchClient

configuration (producer)

The component configuration

Cw2Configuration

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

name (producer)

The metric name

String

proxyHost (producer)

To define a proxy host when instantiating the CW client

String

proxyPort (producer)

To define a proxy port when instantiating the CW client

Integer

proxyProtocol (producer)

To define a proxy protocol when instantiating the CW client. The value can be one of: HTTP, HTTPS

HTTPS

Protocol

region (producer)

The region in which EKS client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1) You’ll need to use the name Region.EU_WEST_1.id()

String

timestamp (producer)

The metric timestamp

Instant

unit (producer)

The metric unit

String

value (producer)

The metric value

Double

basicPropertyBinding (advanced)

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

accessKey (security)

Amazon AWS Access Key

String

secretKey (security)

Amazon AWS Secret Key

String

The AWS 2 CloudWatch endpoint is configured using URI syntax:

aws2-cw:namespace

with the following path and query parameters:

Path Parameters (1 parameters):

Name Description Default Type

namespace

Required The metric namespace

String

Query Parameters (14 parameters):

Name Description Default Type

amazonCwClient (producer)

To use the AmazonCloudWatch as the client

CloudWatchClient

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

name (producer)

The metric name

String

proxyHost (producer)

To define a proxy host when instantiating the CW client

String

proxyPort (producer)

To define a proxy port when instantiating the CW client

Integer

proxyProtocol (producer)

To define a proxy protocol when instantiating the CW client. The value can be one of: HTTP, HTTPS

HTTPS

Protocol

region (producer)

The region in which EKS client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1) You’ll need to use the name Region.EU_WEST_1.id()

String

timestamp (producer)

The metric timestamp

Instant

unit (producer)

The metric unit

String

value (producer)

The metric value

Double

basicPropertyBinding (advanced)

Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

accessKey (security)

Amazon AWS Access Key

String

secretKey (security)

Amazon AWS Secret Key

String

Required CW component options

You have to provide the amazonCwClient in the Registry or your accessKey and secretKey to access the Amazon’s CloudWatch.

Usage

Message headers evaluated by the CW producer

Header Type Description

CamelAwsCwMetricName

String

The Amazon CW metric name.

CamelAwsCwMetricValue

Double

The Amazon CW metric value.

CamelAwsCwMetricUnit

String

The Amazon CW metric unit.

CamelAwsCwMetricNamespace

String

The Amazon CW metric namespace.

CamelAwsCwMetricTimestamp

Date

The Amazon CW metric timestamp.

CamelAwsCwMetricDimensionName

String

The Amazon CW metric dimension name.

CamelAwsCwMetricDimensionValue

String

The Amazon CW metric dimension value.

CamelAwsCwMetricDimensions

Map<String, String>

A map of dimension names and dimension values.

Advanced CloudWatchClient configuration

If you need more control over the CloudWatchClient instance configuration you can create your own instance and refer to it from the URI:

from("direct:start")
.to("aws2-cw://namespace?amazonCwClient=#client");

The #client refers to a CloudWatchClient in the Registry.

Automatic detection of CloudWatchClient client in registry

The component is capable of detecting the presence of an CloudWatchClient bean into the registry. If it’s the only instance of that type it will be used as client and you won’t have to define it as uri parameter. This may be really useful for smarter configuration of the endpoint.

Dependencies

Maven users will need to add the following dependency to their pom.xml.

pom.xml

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-aws2-cw</artifactId>
    <version>${camel-version}</version>
</dependency>

where ${camel-version} must be replaced by the actual version of Camel.

Spring Boot Auto-Configuration

When using aws2-cw with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-aws2-cw-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 15 options, which are listed below.

Name Description Default Type

camel.component.aws2-cw.access-key

Amazon AWS Access Key

String

camel.component.aws2-cw.amazon-cw-client

To use the AmazonCloudWatch as the client. The option is a software.amazon.awssdk.services.cloudwatch.CloudWatchClient type.

String

camel.component.aws2-cw.basic-property-binding

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

Boolean

camel.component.aws2-cw.configuration

The component configuration. The option is a org.apache.camel.component.aws2.cw.Cw2Configuration type.

String

camel.component.aws2-cw.enabled

Whether to enable auto configuration of the aws2-cw component. This is enabled by default.

Boolean

camel.component.aws2-cw.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.aws2-cw.name

The metric name

String

camel.component.aws2-cw.proxy-host

To define a proxy host when instantiating the CW client

String

camel.component.aws2-cw.proxy-port

To define a proxy port when instantiating the CW client

Integer

camel.component.aws2-cw.proxy-protocol

To define a proxy protocol when instantiating the CW client

Protocol

camel.component.aws2-cw.region

The region in which EKS client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1) You’ll need to use the name Region.EU_WEST_1.id()

String

camel.component.aws2-cw.secret-key

Amazon AWS Secret Key

String

camel.component.aws2-cw.timestamp

The metric timestamp. The option is a java.time.Instant type.

String

camel.component.aws2-cw.unit

The metric unit

String

camel.component.aws2-cw.value

The metric value

Double