[Women in Tech Global Conference - 2022]Cloud-Native Middleware as a Programming Language
0 likes10 views
Ballerina is a new programming language for cloud-native application development that provides abstractions for network services and clients. It has features like built-in support for concurrency and transactions that make it suitable for integrating systems and developing microservices. The talk demonstrated developing a REST service in Ballerina and discussed how Ballerina compiler extensions can generate artifacts like Dockerfiles to deploy applications to Kubernetes. Ballerina aims to be a complete platform with tools and libraries for development, along with an open source community contributing to its future.
[Women in Tech Global Conference - 2022]Cloud-Native Middleware as a Programming Language
- 1. Cloud-Native Middleware as a Programming Language Anupama Pathirage June 2022
- 2. Source : https://snarky.ca/the-key-challenges-in-designing-a-programming-language/
- 3. Source : IBM cloud native development report
- 4. In this session Why we need a new programming language? What is Ballerina? Key features of Ballerina Demo - Develop a REST service using Ballerina Open source contributions to Ballerina
- 5. Application development process ● Write code to integrate many systems ● Test and document the code ● Build and package into Docker ● Write deployment descriptors ● API management and security ● Scaling and performance ● Observe the usages and analytics ● Adjust and redeploy
- 6. Why we need a new programming language? ○ Better network abstractions ○ Better support for data representation ○ Network aware type system ○ 1st Class support for a wide spectrum of network protocols ○ Ability to handle concurrency easily ○ Cloud friendliness ○ Visual representations for the full picture ○ Should be a complete platform, not just a language
- 7. What is Ballerina? ○ Started in 2016 by WSO2. ○ A general-purpose programming language. ○ Specializes in solving integration & cloud-based problems by providing the right level of language abstractions and tools. ○ Open-source project and driven by the community.
- 8. What is Ballerina? ○ Data-Oriented ○ Language has objects, the development methods are not completely OOP-based. ○ Both objects and functions are first class concepts, giving developers the ability to choose the best option based on their requirements. ○ Primary focus is on represent, describe, communicate pure data. ○ Compiled ○ Flexibly typed ○ Concurrent ○ Ballerina is NOT a JVM language. It has two implementations. ○ jBallerina - written in java to run on top of JVM. This is the first implementation to prove the language. ○ nBallerina - Compiled using LLVM, directly to the platform architecture.
- 9. Ballerina Provides Network Abstractions ○ Provides abstractions for both network services and network clients. ○ For clients - Client objects with remote methods to represent outbound network messages ○ For services - Service objects ○ A remote method on a service object represents a network-callable method. ○ A resource method, which enables a more data-oriented view of services. ○ Incoming network messages are dispatched to service objects by using objects implementing the language-defined Listener type.
- 10. Ballerina has Network-Aware Data & Type System ● Ballerina’s type system is specifically focused on aiding the development of networked and distributed applications. ● Plain Data ○ Messages exchanged by network protocols are represented by plain data ○ This is called anydata in Ballerina ○ Can be directly serialized to and from JSON in a simple, natural way. ● Ballerina has a structural type system ○ Type compatibility is identified by considering the structure of the value rather than just relying on the name of the type.
- 11. Code to Cloud with Ballerina ● Ballerina provides a unique developer experience to move from code to cloud. ● The Ballerina compiler can be extended to read the source code and generate artifacts to deploy your code into different clouds. ● These artifacts can be Dockerfiles, Docker images, Kubernetes YAML files, or serverless functions. ● Building the source with ○ bal build --cloud=k8s Generate the Kubernetes YAML files and Docker image ○ bal build --cloud=docker Generate the Docker image and Dockerfile
- 12. Ballerina is Concurrent, Reliable & Maintainable ● With more and more applications needing to support network interaction, concurrency becomes important for handling scale. ○ Asynchronous function calls - calls a function asynchronously and the function runs on a separate logical thread ○ Workers - Represents a single strand of a function invocation. ○ A strand is a logical thread of control assigned to every worker, which is multitasked cooperatively instead of preemptively. ● Ballerina runtime has built-in support for interacting with a transaction manager. ○ language provides syntax for delimiting transactions.
- 13. Ballerina Provides Sequence Diagram
- 14. Ballerina is a Platform Ballerina has: - "The language" - This is the core and it's the part that's defined in the language specification. - "Platform" - The language has been designed in conjunction with key components of the surrounding ecosystem The platform includes: ● a standard library ● a centralized module repository, and the tooling needed to support that ● a documentation system (based on Markdown) ● a testing framework ● extensions/plug-ins for popular IDEs (notably Visual Studio Code).
- 16. Demo
- 17. Search for Books and Movie Data
- 18. Contributing to Ballerina Ballerina has: ○ https://ballerina-platform.slack.com/ ○ - - https://groups.google.com/g/ballerina-dev ○ https://github.com/ballerina-platform/
- 19. Thank You