AWS 2 Kinesis

Since Camel 3.2

Both producer and consumer are supported

The AWS2 Kinesis component supports receiving messages from and sending messages to Amazon Kinesis (no Batch supported) service.

Prerequisites

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

The AWS2 Kinesis component is not supported in OSGI

URI Format

aws2-kinesis://stream-name[?options]

The stream needs to be created prior to it being used.
You can append query options to the URI in the following format, ?options=value&option2=value&…​

URI Options

The AWS 2 Kinesis component supports 16 options, which are listed below.

Name Description Default Type

amazonKinesisClient (common)

Amazon Kinesis client to use for all requests for this endpoint

KinesisClient

configuration (common)

Component configuration

Kinesis2Configuration

proxyHost (common)

To define a proxy host when instantiating the Kinesis client

String

proxyPort (common)

To define a proxy port when instantiating the Kinesis client

Integer

proxyProtocol (common)

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

HTTPS

Protocol

region (common)

The region in which Kinesis Firehose 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

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

iteratorType (consumer)

Defines where in the Kinesis stream to start getting records. The value can be one of: AT_SEQUENCE_NUMBER, AFTER_SEQUENCE_NUMBER, TRIM_HORIZON, LATEST, AT_TIMESTAMP, null

TRIM_HORIZON

ShardIteratorType

maxResultsPerRequest (consumer)

Maximum number of records that will be fetched in each poll

1

int

sequenceNumber (consumer)

The sequence number to start polling from. Required if iteratorType is set to AFTER_SEQUENCE_NUMBER or AT_SEQUENCE_NUMBER

String

shardClosed (consumer)

Define what will be the behavior in case of shard closed. Possible value are ignore, silent and fail. In case of ignore a message will be logged and the consumer will restart from the beginning,in case of silent there will be no logging and the consumer will start from the beginning,in case of fail a ReachedClosedStateException will be raised. The value can be one of: ignore, fail, silent

ignore

Kinesis2ShardClosedStrategyEnum

shardId (consumer)

Defines which shardId in the Kinesis stream to get records from

String

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

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 Kinesis endpoint is configured using URI syntax:

aws2-kinesis:streamName

with the following path and query parameters:

Path Parameters (1 parameters):

Name Description Default Type

streamName

Required Name of the stream

String

Query Parameters (34 parameters):

Name Description Default Type

amazonKinesisClient (common)

Amazon Kinesis client to use for all requests for this endpoint

KinesisClient

proxyHost (common)

To define a proxy host when instantiating the Kinesis client

String

proxyPort (common)

To define a proxy port when instantiating the Kinesis client

Integer

proxyProtocol (common)

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

HTTPS

Protocol

region (common)

The region in which Kinesis Firehose 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

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

iteratorType (consumer)

Defines where in the Kinesis stream to start getting records. The value can be one of: AT_SEQUENCE_NUMBER, AFTER_SEQUENCE_NUMBER, TRIM_HORIZON, LATEST, AT_TIMESTAMP, null

TRIM_HORIZON

ShardIteratorType

maxResultsPerRequest (consumer)

Maximum number of records that will be fetched in each poll

1

int

sendEmptyMessageWhenIdle (consumer)

If the polling consumer did not poll any files, you can enable this option to send an empty message (no body) instead.

false

boolean

sequenceNumber (consumer)

The sequence number to start polling from. Required if iteratorType is set to AFTER_SEQUENCE_NUMBER or AT_SEQUENCE_NUMBER

String

shardClosed (consumer)

Define what will be the behavior in case of shard closed. Possible value are ignore, silent and fail. In case of ignore a message will be logged and the consumer will restart from the beginning,in case of silent there will be no logging and the consumer will start from the beginning,in case of fail a ReachedClosedStateException will be raised. The value can be one of: ignore, fail, silent

ignore

Kinesis2ShardClosedStrategyEnum

shardId (consumer)

Defines which shardId in the Kinesis stream to get records from

String

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange. The value can be one of: InOnly, InOut, InOptionalOut

ExchangePattern

pollStrategy (consumer)

A pluggable org.apache.camel.PollingConsumerPollingStrategy allowing you to provide your custom implementation to control error handling usually occurred during the poll operation before an Exchange have been created and being routed in Camel.

PollingConsumerPollStrategy

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

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

backoffErrorThreshold (scheduler)

The number of subsequent error polls (failed due some error) that should happen before the backoffMultipler should kick-in.

int

backoffIdleThreshold (scheduler)

The number of subsequent idle polls that should happen before the backoffMultipler should kick-in.

int

backoffMultiplier (scheduler)

To let the scheduled polling consumer backoff if there has been a number of subsequent idles/errors in a row. The multiplier is then the number of polls that will be skipped before the next actual attempt is happening again. When this option is in use then backoffIdleThreshold and/or backoffErrorThreshold must also be configured.

int

delay (scheduler)

Milliseconds before the next poll.

500

long

greedy (scheduler)

If greedy is enabled, then the ScheduledPollConsumer will run immediately again, if the previous run polled 1 or more messages.

false

boolean

initialDelay (scheduler)

Milliseconds before the first poll starts.

1000

long

repeatCount (scheduler)

Specifies a maximum limit of number of fires. So if you set it to 1, the scheduler will only fire once. If you set it to 5, it will only fire five times. A value of zero or negative means fire forever.

0

long

runLoggingLevel (scheduler)

The consumer logs a start/complete log line when it polls. This option allows you to configure the logging level for that. The value can be one of: TRACE, DEBUG, INFO, WARN, ERROR, OFF

TRACE

LoggingLevel

scheduledExecutorService (scheduler)

Allows for configuring a custom/shared thread pool to use for the consumer. By default each consumer has its own single threaded thread pool.

ScheduledExecutorService

scheduler (scheduler)

To use a cron scheduler from either camel-spring or camel-quartz component. The value can be one of: none, spring, quartz

none

String

schedulerProperties (scheduler)

To configure additional properties when using a custom scheduler or any of the Quartz, Spring based scheduler.

Map

startScheduler (scheduler)

Whether the scheduler should be auto started.

true

boolean

timeUnit (scheduler)

Time unit for initialDelay and delay options. The value can be one of: NANOSECONDS, MICROSECONDS, MILLISECONDS, SECONDS, MINUTES, HOURS, DAYS

MILLISECONDS

TimeUnit

useFixedDelay (scheduler)

Controls if fixed delay or fixed rate is used. See ScheduledExecutorService in JDK for details.

true

boolean

accessKey (security)

Amazon AWS Access Key

String

secretKey (security)

Amazon AWS Secret Key

String

Required Kinesis component options

You have to provide the KinesisClient in the Registry with proxies and relevant credentials configured.

Batch Consumer

This component implements the Batch Consumer.

This allows you for instance to know how many messages exists in this batch and for instance let the Aggregator aggregate this number of messages.

Usage

Message headers set by the Kinesis consumer

Header Type Description

CamelAwsKinesisSequenceNumber

String

The sequence number of the record. This is represented as a String as it size is not defined by the API. If it is to be used as a numerical type then use

CamelAwsKinesisApproximateArrivalTimestamp

String

The time AWS assigned as the arrival time of the record.

CamelAwsKinesisPartitionKey

String

Identifies which shard in the stream the data record is assigned to.

AmazonKinesis configuration

You then have to reference the KinesisClient in the amazonKinesisClient URI option.

from("aws2-kinesis://mykinesisstream?amazonKinesisClient=#kinesisClient")
  .to("log:out?showAll=true");

Providing AWS Credentials

It is recommended that the credentials are obtained by using the DefaultAWSCredentialsProviderChain that is the default when creating a new ClientConfiguration instance, however, a different AWSCredentialsProvider can be specified when calling createClient(…​).

Message headers used by the Kinesis producer to write to Kinesis. The producer expects that the message body is a byte[].

Header Type Description

CamelAwsKinesisPartitionKey

String

The PartitionKey to pass to Kinesis to store this record.

CamelAwsKinesisSequenceNumber

String

Optional paramter to indicate the sequence number of this record.

Message headers set by the Kinesis producer on successful storage of a Record

Header Type Description

CamelAwsKinesisSequenceNumber

String

The sequence number of the record, as defined in Response Syntax

CamelAwsKinesisShardId

String

The shard ID of where the Record was stored

Automatic detection of KinesisClient client in registry

The component is capable of detecting the presence of an KinesisClient 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-kinesis</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-kinesis 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-kinesis-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 29 options, which are listed below.

Name Description Default Type

camel.component.aws2-kinesis-firehose.access-key

Amazon AWS Access Key

String

camel.component.aws2-kinesis-firehose.amazon-kinesis-firehose-client

Amazon Kinesis Firehose client to use for all requests for this endpoint. The option is a software.amazon.awssdk.services.firehose.FirehoseClient type.

String

camel.component.aws2-kinesis-firehose.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-kinesis-firehose.configuration

Component configuration. The option is a org.apache.camel.component.aws2.firehose.KinesisFirehose2Configuration type.

String

camel.component.aws2-kinesis-firehose.enabled

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

Boolean

camel.component.aws2-kinesis-firehose.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-kinesis-firehose.operation

The operation to do in case the user don’t want to send only a record

KinesisFirehose2Operations

camel.component.aws2-kinesis-firehose.proxy-host

To define a proxy host when instantiating the Kinesis Firehose client

String

camel.component.aws2-kinesis-firehose.proxy-port

To define a proxy port when instantiating the Kinesis Firehose client

Integer

camel.component.aws2-kinesis-firehose.proxy-protocol

To define a proxy protocol when instantiating the Kinesis Firehose client

Protocol

camel.component.aws2-kinesis-firehose.region

The region in which Kinesis Firehose 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-kinesis-firehose.secret-key

Amazon AWS Secret Key

String

camel.component.aws2-kinesis.access-key

Amazon AWS Access Key

String

camel.component.aws2-kinesis.amazon-kinesis-client

Amazon Kinesis client to use for all requests for this endpoint. The option is a software.amazon.awssdk.services.kinesis.KinesisClient type.

String

camel.component.aws2-kinesis.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-kinesis.bridge-error-handler

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

Boolean

camel.component.aws2-kinesis.configuration

Component configuration. The option is a org.apache.camel.component.aws2.kinesis.Kinesis2Configuration type.

String

camel.component.aws2-kinesis.enabled

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

Boolean

camel.component.aws2-kinesis.iterator-type

Defines where in the Kinesis stream to start getting records

ShardIteratorType

camel.component.aws2-kinesis.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-kinesis.max-results-per-request

Maximum number of records that will be fetched in each poll

1

Integer

camel.component.aws2-kinesis.proxy-host

To define a proxy host when instantiating the Kinesis client

String

camel.component.aws2-kinesis.proxy-port

To define a proxy port when instantiating the Kinesis client

Integer

camel.component.aws2-kinesis.proxy-protocol

To define a proxy protocol when instantiating the Kinesis client

Protocol

camel.component.aws2-kinesis.region

The region in which Kinesis Firehose 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-kinesis.secret-key

Amazon AWS Secret Key

String

camel.component.aws2-kinesis.sequence-number

The sequence number to start polling from. Required if iteratorType is set to AFTER_SEQUENCE_NUMBER or AT_SEQUENCE_NUMBER

String

camel.component.aws2-kinesis.shard-closed

Define what will be the behavior in case of shard closed. Possible value are ignore, silent and fail. In case of ignore a message will be logged and the consumer will restart from the beginning,in case of silent there will be no logging and the consumer will start from the beginning,in case of fail a ReachedClosedStateException will be raised

Kinesis2ShardClosedStrategyEnum

camel.component.aws2-kinesis.shard-id

Defines which shardId in the Kinesis stream to get records from

String