What is Recipientlist in camel?

Using Recipient List. The Recipient List EIP allows to route the same message to a number of endpoints and process them in a different way. There can be 1 or more destinations, and Camel will execute them sequentially (by default). However, a parallel mode exists which allows processing messages concurrently.

What is Camel registry?

camel. spi. Registry API is a common API to lookup beans in any kind of runtime platform, whether you run Camel on Spring Boot, Quarkus, CDI, Standalone, Kafka or something else.

What is toD in Apache Camel?

The toD is used for sending message to a dynamic endpoint. The dynamic endpoint is evaluated on-demand by an Expression. By default, the Simple expression is used to compute the dynamic endpoint URI.

What is direct endpoint in Camel?

The Direct component provides direct, synchronous invocation of any consumers when a producer sends a message exchange. This endpoint can be used to connect existing routes in the same camel context.

What are routes in Camel?

A route in Apache Camel is a sequence of steps, executed in order by Camel, that consume and process a message. A Camel route starts with a consumer, and is followed by a chain of endpoints and processors. So firstly, a route receives a message, using a consumer – perhaps from a file on disk, or a message queue.

What is ServiceMix used for?

ServiceMix uses ActiveMQ to provide remoting, clustering, reliability and distributed failover. ServiceMix is completely integrated into Apache Geronimo, which allows you to deploy JBI components and services directly into Geronimo.

What is Seda in camel?

SEDA is an architecture. The SEDA component in Camel uses in-memory queues in your process and are a separate component in order to distinguish them from the other queue component in Apache camel, namely the JMS component.

What is ProducerTemplate in camel?

The ProducerTemplate interface allows you to send message exchanges to endpoints in a variety of different ways to make it easy to work with Camel Endpoint instances from Java code.

What is CamelContext in Apache Camel?

The CamelContext is the runtime system, which holds everything together as depicted in the figure below. The CamelContext provides access to many useful services, the most notable being components, type converters, a registry, endpoints, routes, data formats, and languages. Contains the components used.

How do I add a route to Camel context?

Adding route configurations to CamelContext

If you use Spring Boot, then your Camel routes and route configurations can be auto-discovered by the spring boot component scanning. This requires adding the @Component annotation to the class. See the example camel-spring-boot-examples/routes-configuration.

How do I learn Apache Camel?

Is ProducerTemplate thread safe?

The ProducerTemplate is thread safe. All the methods which sends a message may throw FailedToCreateProducerException in case the Producer could not be created.

How do you integrate a camel with a spring boot?

What is a SEDA queue?

The staged event-driven architecture (SEDA) refers to an approach to software architecture that decomposes a complex, event-driven application into a set of stages connected by queues.

What is Karaf container?

Apache Karaf is a modern polymorphic application container. Karaf can be used as a standalone container, supporting a wide range of applications and technologies. It also supports the "run anywhere" concept (on any machine with Java, cloud, docker images, … ​) using the embedded mode.

Is Apache Camel an ESB?

While Apache Camel, on its own, provides substantial EIP capabilities, it does not qualify as a genuine ESB. In comparison to Apache ServiceMix and other ESB solutions, it is missing several integral features, such as a message broker à la ApacheMQ and a container like Apache Karaf.

What is DSL in Camel?

The Camel DSL is a language that allows to configure the behavior of the Camel Routing Engine. The two main types of DSL are. Java DSL. Spring XML Config.

What is routeId in Apache Camel?

routeId() are for identifying routes. By adding ids you can in your tests use adviceWith() to mock or inject or remove parts of your route to perform automated tests without having access to backend systems.

What is Camel spring boot?

Spring Boot component provides auto-configuration for Apache Camel. Our opinionated auto-configuration of the Camel context auto-detects Camel routes available in the Spring context and registers the key Camel utilities (like producer template, consumer template and the type converter) as beans.

What is Camel Quarkus?

Apache Camel is the Swiss knife of integrating heterogeneous systems with more than a decade of history and a lively community of users and developers. The support for Apache Camel on top of Quarkus is provided by the Apache Camel Quarkus project.

What's the difference between Apache Camel and Kafka?

As a matter of fact, Apache Camel is a complete integration framework, while Apache Kafka is a distributed messaging platform. So, at high level, they don't exclude each other. Apache Kafka can indeed well fit within the integration layer which can be designed as a Camel Route.

How does RouteBuilder work?

You use RouteBuilder to define a route in Java DSL. You create a route by extending the built-in RouteBuilder class. The route begins with a from endpoint and finishes at one or more to endpoints. In between the two, you implement the processing logic.

Why Kafka is better than RabbitMQ?

RabbitMQ employs the smart broker/dumb consumer model. The broker consistently delivers messages to consumers and keeps track of their status. Kafka uses the dumb broker/smart consumer model. Kafka doesn't monitor the messages each user has read.

What is the difference between Kafka and ActiveMQ?

Kafka is way faster than ActiveMQ. It can handle millions of messages per sec. ActiveMQ supports both message queues and publishes/subscribe messaging systems. On the other hand, Kafka is based on publish/subscribe but does have certain advantages of message-queues.