Jackson JSON Processor
Disruptor
Jackson JSON Processor | Disruptor | |
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23 | 30 | |
8,827 | 17,029 | |
0.8% | 0.4% | |
6.6 | 5.4 | |
about 1 month ago | 4 months ago | |
Java | ||
- | Apache License 2.0 |
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Jackson JSON Processor
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Data API for Amazon Aurora Serverless v2 with AWS SDK for Java - Part 2 Executing SQL statements
We can then easily convert this string value into the array of Products using librares like Jackson.
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Consuming and Testing third party API's using Spring Webclient
The above class maps the json data to a java object we can work with. We use Lombok to generate constructors, getters and setters for our code and the Jackson Project to handle serialization and deserialization of json to pojo . We know the response is an array of objects representing the coffee and so above data structure is fit for this.
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Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
Jackson. Because JSON.
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Create a custom Jackson JsonSerializer und JsonDeserializer for mapping values
For my series of articles, I also wanted to see how this requirement to mapping values could be implemented with Jackson.
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Is rust serde unique?
In practical terms, Jackson achieves the same purpose for Java. It was born as a Json parser, but nowadays supports multiple formats and it's widely used in the Java community.
- Recommend packages for formatting JSON for a command line Java program?
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Forward Compatible Enum Values in API with Java Jackson
How can Jackson library help you out?
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Generate Kotlin client for a complex web API
jackson
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Primeiros passos no desenvolvimento Java em 2023: um guia particular
Jackson para lidar com JSON;
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How to build a Snowflake API?
An example of a Snowflake API request using Java. This example uses Java’s built-in HttpClient and constructs JSON manually, so it doesn’t require additional dependencies; however, in production, you should use a library like Jackson for constructing JSON. Additionally, for stronger typing, you could use Apollo’s Kotlin-based GraphQL client.
Disruptor
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Gnet is the fastest networking framework in Go
https://lmax-exchange.github.io/disruptor/#_what_is_the_disr.... Unfortunately IIUC writing this in Go still prevents the spin-locked acceptor thread from achieving the kind of performance you could get in a non-GC language, unless you chose to disable GC, so I'd guess Envoy is still faster.
https://gnet.host/docs/quickstart/ it's nice that you can use this simply though. Envoy is kind of tricky to setup with custom filters, so most of the time it's just a standalone binary.
[0] https://blog.envoyproxy.io/envoy-threading-model-a8d44b92231...
[1] https://lmax-exchange.github.io/disruptor/#_what_is_the_disr...
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A lock-free ring-buffer with contiguous reservations (2019)
See also the Java LMAX Disruptor https://github.com/LMAX-Exchange/disruptor
I've built a similar lock-free ring buffer in C++11 https://github.com/posterior/loom/blob/master/doc/adapting.m...
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JEP Draft: Deprecate Memory-Access Methods in Sun.misc.Unsafe for Removal
"Why we chose Java for our High-Frequency Trading application"
https://medium.com/@jadsarmo/why-we-chose-java-for-our-high-...
LMAX Disruptor customers
https://lmax-exchange.github.io/disruptor/
Among many other examples.
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LMAX Disruptor – High Performance Inter-Thread Messaging Library
Current documentation
https://lmax-exchange.github.io/disruptor/
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Progress on No-GIL CPython
LMAX Disruptor has on their wiki that average latency to send a message from one thread to another at 53 nanoseconds. For comparison a mutex is like 25 nanoseconds and more if Contended but a mutex is point to point synchronization.
The great thing about it is that multiple threads can receive the same message without much more effort.
https://github.com/LMAX-Exchange/disruptor/wiki/Performance-...
https://gist.github.com/rmacy/2879257
I am dreaming of language that is similar to Smalltalk that stays single threaded until it makes sense to parallise.
I am looking for problems to parallelism that are not big data. Parallelism is like adding more cars to the road rather than increasing the speed of the car. But what does a desktop or mobile user need to do locally that could take advantage of the mathematical power of a computer? I'm still searching.
- Disruptor 4.0.0 Released
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Anything can be a message queue if you use it wrongly enough
Database config should be two connection strings, 1 for the admin user that creates the tables and anther for the queue user. Everything else should be stored in the database itself. Each queue should be in its own set of tables. Large blobs may or may not be referenced to an external file.
Shouldn't a message send be worst case a CAS. It really seems like all the work around garbage collection would have some use for in-memory high speed queues.
Are you familiar with the LMAX Disruptor? Is is a Java based cross thread messaging library used for day trading applications.
https://lmax-exchange.github.io/disruptor/
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Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
Disruptor for inter-thread messaging
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Measuring how much Rust's bounds checking actually costs
I have never worked in any industries where a perf margin was that small. It is funny, in HFT there are folks using Lmax (Java) and then you have folks writing their own TCP/IP stacks on FPGAs to do trading.
What are some alternatives?
MapStruct - An annotation processor for generating type-safe bean mappers
JCTools
Moshi - A modern JSON library for Kotlin and Java.
Agrona - High Performance data structures and utility methods for Java
Gson - A Java serialization/deserialization library to convert Java Objects into JSON and back
fastutil - fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.
Hibernate - Hibernate's core Object/Relational Mapping functionality
MPMCQueue.h - A bounded multi-producer multi-consumer concurrent queue written in C++11
Carteasy - A Shopping cart library for Android that allows you add to add items to cart and retrieve at ease using JSONObjects.
Eclipse Collections - Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
Yasson - Eclipse Yasson project
Javolution