Solve cross cutting concerns with aspect oriented programming (aop)
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The document discusses the principles and practices of continuous delivery in an agile context. It emphasizes automating the entire software delivery process from code commits through deployment to production to minimize risks and ensure fast, reliable software updates. This includes having automated tests, continuous integration, monitoring systems, and the ability to rollback changes. It also stresses the importance of collaboration across teams to establish a shared goal of delivering value to customers through working software.
2013 training - tim m - cross cutting concerns
Cross-cutting concerns are aspects of a program that affect other concerns but cannot be cleanly separated, such as synchronization, error handling, caching, and logging. Aspect-oriented programming is a technique to modularize cross-cutting concerns using aspects, pointcuts, and advice where aspects contain the cross-cutting logic, pointcuts identify join points in the code, and advice defines the additional code to execute at those join points.
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Enterprises are challenged by conflicting interests:
Engineering teams want more time to focus on code quality, but product managers want to ship faster.
Developers want the best tool for the job, but companies resist adding more technology stacks to their growing tech debt.
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Minimize DevOps overhead from retrofitting programming languages with new versions, dependencies, security patches, etc.
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Use Build Validation to vet your continuous builds against smoke tests
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Solve cross cutting concerns with aspect oriented programming (aop)
- 1. Solve Cross Cutting Concerns with Aspect Oriented programming (AOP) Siva Prasad Rao Janapati http://smarttechie.org
- 2. Implement method execution metrics. Hey, Can you add loggers for our legacy code? Add role check(Security) for all our API methods. ❏ Caching ❏ Monitoring ❏ Error detection ❏ Data validation ❏ Internationalization and Localization ❏ Transaction processing What if you come across below scenarios?
- 3. Cross-cutting concerns are parts of a program that rely on or must affect many other parts of the system. ❏ Scattered, or duplicated code ❏ Loss of modularity ❏ Not easy to refactor ❏ Not easy to understand and troubleshoot ❏ Code maintainability becomes nightmare What if you don’t address cross-cutting concerns properly? What is a cross-cutting concern?
- 4. Who will rescue me? Aspect Oriented Programming (AOP) Aspect-oriented programming aims to encapsulate cross-cutting concerns into aspects (common feature) to retain modularity. ❏ Clean isolation and reuse of code ❏ Code modularity ❏ Simplified maintenance
- 5. AOP at a glance ADVICE APPLICATION CODE EXECUTION ADVICEADVICE
- 6. Dive into AOP terminology ❏ Advice – What is the additional logic to execute when Pointcut is evaluated as true. ❏ Pointcut – Pointcut is the expression used to define when the call to a method is intercepted. ❏ Aspect – Pointcut + Advice is called Aspect.
- 7. Dominant Java AOP implementers AOP JBossSpringAspectJ AOP not only for Java, many languages implemented this concept. https://en.wikipedia.org/wiki/Aspect-oriented_programming#Implementations
- 8. Spring AOP - Types of advices Types of Advices Before After After Returning Around After Throwing ❏ Before – Advice is called “Before” executing the intended method. ❏ After – Advice is called “After” executing the intended method without success/failure. ❏ After Returning – Advice is called after successful completion of intended method execution. ❏ Around – Advice is called before and after the intended method execution. ❏ After Throwing – Advice is called after the intended method throws runtime exception.
- 9. Spring AOP - Lets see in action https://github.com/2013techsmarts/spring-aop
- 10. Questions