10.10. AWS-SNS

SNS Component

Available as of Camel 2.8
The SNS component allows messages to be sent to an Amazon Simple Notification Topic. 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 SNS. More information are available at Amazon SNS.

URI Format

aws-sns://topicName[?options]
The topic 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

Name Default Value Context Description
amazonSNSClient null Producer Reference to a com.amazonaws.services.sns.AmazonSNS in the Registry.
accessKey null Producer Amazon AWS Access Key
secretKey null Producer Amazon AWS Secret Key
subject null Producer The subject which is used if the message header 'CamelAwsSnsSubject' is not present.
amazonSNSEndpoint null Producer The region with which the AWS-SNS client wants to work with.
policy null Producer Camel 2.8.4: The policy for this queue to set in the com.amazonaws.services.sns.model.SetTopicAttributesRequest.
proxyHost null Producer Specify a proxy host to be used inside the client definition.
proxyPort null Producer Specify a proxy port to be used inside the client definition.
Required SNS component options
You have to provide the amazonSNSClient in the Registry or your accessKey and secretKey to access the Amazon's SNS.

Usage

Message headers evaluated by the SNS producer

Header Type Description
CamelAwsSnsSubject String The Amazon SNS message subject. If not set, the subject from the SnsConfiguration is used.

Message headers set by the SNS producer

Header Type Description
CamelAwsSnsMessageId String The Amazon SNS message ID.

Advanced AmazonSNS configuration

If you need more control over the AmazonSNS instance configuration you can create your own instance and refer to it from the URI:
from("direct:start")
.to("aws-sns://MyTopic?amazonSNSClient=#client");
The #client refers to a AmazonSNS in the Registry.
For example if your Camel Application is running behind a firewall:
AWSCredentials awsCredentials = new BasicAWSCredentials("myAccessKey", "mySecretKey");
ClientConfiguration clientConfiguration = new ClientConfiguration();
clientConfiguration.setProxyHost("http://myProxyHost");
clientConfiguration.setProxyPort(8080);
AmazonSNS client = new AmazonSNSClient(awsCredentials, clientConfiguration);

registry.bind("client", client);

Dependencies

Maven users will need to add the following dependency to their pom.xml.
pom.xml
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-aws</artifactId>
    <version>${camel-version}</version>
</dependency>

where $\{camel-version\} must be replaced by the actual version of Camel (2.8 or higher).