Apache Camel

How to implement Exception Handling Using Apache Camel?

Hello 🖐 My Self Rohan Ravindra Kadam

Welcome, Developer Community !! In the article, we try to understand the exception handling using Apache Camel. Before directly jumping into the article lets us try to understand certain question or queries related to the topic. We may have questions like What is Apache Camel? Why used Apache Camel? How to use apache camel?

Hey Community, let us, deep-dive, into our Questions and find the answer for them.

Credits:- Rohan Ravindra Kadam Exception Handling Using Apache Camel

⚡ What is Apache Camel?

Apache Camel ™ is a versatile open-source integration framework based on known Enterprise Integration Patterns.

Camel empowers you to define routing and mediation rules in various domain-specific languages (DSL, such as Java, XML, Groovy, Kotlin, and YAML). This means you get smart completion of routing rules in your IDE, whether in a Java or XML editor.

Apache Camel uses URIs to work directly with any kind of transport or messaging models such as HTTP, ActiveMQ, JMS, JBI, SCA, MINA or CXF, as well as pluggable Components and Data Format options. Apache Camel is a small library with minimal dependencies for easy embedding in any Java application. Apache Camel lets you work with the same API regardless of which kind of transport is used — so learn the API once, and you can interact with all the Components provided out-of-box.

Apache Camel supports Bean Binding and seamless integration with popular frameworks such as CDI and Spring. Camel also has extensive support for unit testing your routes.

Apache Camel helps you integrate over 300 different systems!

⚡ Why used Apache Camel?

Let us try to list down certain use cases for Apache Camel

1. Provides Support to Enterprise Integration Patterns(EIP)
2. Runs Everywhere:- Apache Camel is standalone and can be embedded as a library within Spring Boot, Quarkus, Application Servers, and in the clouds. Camel subprojects focus on making your work easy.
3. Packed With Components:- Packed with several hundred components used to access databases, message queues, APIs or anything under the sun. Helping you integrate with everything.
4. Support Over 50 Data Formats:- Camel supports around 50 data formats, allowing to translate messages in multiple formats and with support from industry-standard formats from finance, telco, healthcare, and more.

Home

⚡ How to use Apache Camel?

Before directly jumping into implementation On Apache Camel using Exception.

Check out how to write the first route using Apache Camel

Apache Camel🦒: How to write First Route.

Step 1: How to create Project Using Spring Initializr?

Spring Initializr

Step 2: What are the dependencies to include in the project?

Credit: Rohan Ravindra Kadam Dependencies

There are two ways for Handling Exception in Apache Camel:-

1. Do Try Block
2. OnException block

Step 3: How to implement Using Do try Block for Handling Exception in Apache Camel?

The approach is similar to what we used in other popular languages Java, JavaScript try-catch block. In such a case, the exception will be immediately thrown.

Lets Us Write Route For Do Try Block

Credits: Rohan Ravindra Kadam Do Try Exception Route

Step 4: How to implement Using OnExcepttion Block for Handling Exception in Apache Camel?

For example, if we want to handle certain exceptions using the onException() method in apache camel.

Apache Camel helps you integrate over 300 different systems!

Credits: Rohan Ravindra Kadam OnException block Route

Step 5: How will the processor for the routes?

We created a processor named ExceptionHandlerProcessor as an exception handler processor for both routes for handling the processor.

Credit Rohan Ravindra Kadam ExceptionHandlerProcessor

Conclusion:-

In the article, the Handling exception is the most important part of any software development. We try to implement exception handling using Apache Camel.

Please do share and like 💕if you find the article useful. Follow me on medium Rohan Ravindra Kadam and on Twitter at rohankadam25

⚡Bibliography

Apache Camel helps you integrate over 300 different systems!

Apache Camel🦒: How to write First Route.

Thank You, Viewers — Rohan Kadam