pidove
aws-lambda-java-libs
pidove | aws-lambda-java-libs | |
---|---|---|
9 | 307 | |
46 | 507 | |
- | 1.0% | |
0.0 | 6.6 | |
almost 2 years ago | 25 days ago | |
Java | C++ | |
MIT License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pidove
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Java JEP 461: Stream Gatherers
Streams is too complex for what it does and it doesn’t even parallelize well. Here is something that does roughly the same thing but I think is way better
See https://github.com/paulhoule/pidove
https://central.sonatype.com/artifact/com.ontology2/pidove
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Java 21: The Nice, the Meh, and the Momentous
(1) It's a bit of a bad smell (which he points out) that records aren't being used much at all in the Java stdlib, I wrote something that built out stubs for the 17 and 18 stdlibs and that stood out like a sore thumb. I do like using records though.
(2) I've looked at other ways to extend the collections API and related things, see
https://github.com/paulhoule/pidove
and I think the sequenced collections could have been done better.
(3) Virtual Threads are kinda cool but overrated. Real Threads in Java are already one of the wonders of the web and perform really well for most applications. The cases where Virtual Threads are really a win will be unusual but probably important for somebody. It's a good thing it sticks to the threads API as well as it did because I know in the next five years I'm going to find some case where somebody used Virtual Threads because they thought it was cool and I'll have to switch to Real Threads but won't have a hard time doing so.
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Ask HN: What problems do Generators solve in Java?
I think that guy just made up a generator class for fun. It’s not too different from the integrator except it doesn’t have a hasNext() method so it either returns results forever or it has to return a sentinel value like null or return an exception to end iteration.
Somebody could make the case that returning a sentinel value or an exception is a better API since there is no risk somebody else is going to call the next() method after you call hasNext() and next(). Writing a generator that wraps a generator is a little simpler than writing an interest or that wraps an iteration because you don’t have to write a hasNext() function, which can occasionally be awkward.
That generator library has a few functions, like map that work on generators, unfortunately the Java stdlib doesn’t come with anything like that. (There is the streams API but it is over-complicated.)
I’ll point out this library I wrote
https://github.com/paulhoule/pidove
which does a lot of what the Steams library does but it works on iterators without creating streams. If you like those generator examples you might like pidove.
As for Python it is kinda accidental that generators would up related to coroutines, that is, generators were an easy way to implement coroutines, later async/await and stuff like that got added.
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Overinspired?
I find this alien to my point of view. On the other hand, my side projects aren't driven by FOMO but are more like the "special interests" of autistic people.
Most of the time I have three side projects going on, maybe two of which are really getting the attention they deserve and one that is languishing. (See my profile to see about my current three.) Occasionally I get inspired to spend 1-4 weekends on some sudden inspiration, of which
https://github.com/paulhoule/pidove
came to completion but
https://github.com/paulhoule/ferocity
probably won't. The project I'm working the hardest on now is something that I was baffled that it didn't exist 18 years ago but felt compelled to do something out because of the Twitterinsanity last December and it turned out the technological conditions right now make it the perfect time to work on.
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JDK 20 and JDK 21: What We Know So Far
When I saw sequenced collections earlier I didn’t like the design but I completely approve of the latest revision. One nice thing about the process they use to develop Java is that they really do work and rework new features to make them great.
I just wish that instead of Streams they’d made something more like
https://github.com/paulhoule/pidove
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I love building a startup in Rust. I wouldn't pick it again
... or you can just use a sane FP library like
https://github.com/paulhoule/pidove
Some people don't like the Lispy signatures so I did start coding up a version with with a fluent interface but didn't quite finish.
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“I've never heard anyone say that they loved Java” (2001)
Inner classes are pretty useful.
This library contains a huge number of Iterables, each of which has at least one Iterator implementation.
https://github.com/paulhoule/pidove
It is convenient to let the Iterator be immutable and the Iterator be an inner class that gets its configuration information out of the Iterable.
(That said, if people really thought seriously about Iterator being a Supplier people might think more rationally about error handling. Also in a slightly parallel universe the Iterator would only have one method since remove() hardly ever gets used and having both hasNext() and next() methods is asking for bugs.)
- Show HN: Pidove, an Alternative to the Java Streams API
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Ask HN: Working Offline for 8 Hours?
If you were programming in Python or many other languages you could download documentation locally.
In both Python and Java doing a mini-project I frequently challenge myself to only use the standard library. It's good for practicing HackerRank-rank style programming (the fun of single-file Java)
When I am waiting for builds I sometimes hack on this
https://github.com/paulhoule/pidove
because I don't really like the Streams API and want to perfect my mastery of generics and internal DSLs.
Now that I think of it, standard-library only for node seems like a good challenge for me because I code a lot of front-end Javascript but just barely know the node API.
aws-lambda-java-libs
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Building composable applications: Playing with building blocks
AWS Lambda simplifies composable applications by offering serverless execution, seamless integration with AWS services, automatic scaling, and cost efficiency without the need to manage servers.
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How to Deploy Dart Functions to AWS Lambda
Deploying Dart functions to AWS Lambda enables you to utilize them not only within AWS Lambda but also integrate them with services like Amazon API Gateway, allowing you to leverage them in Flutter applications as well. This unified codebase in Dart offers great convenience.
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Event-Driven Architecture on AWS
Event Producers: Generate streams of events, which can be implemented using straightforward microservices with AWS Lambda (for serverless computing), Amazon DynamoDB Streams (to captures changes to DynamoDB tables in real-time), Amazon S3 Event Notifications (Notify when certain events occur in S3 buckets) or AWS Fargate (a serverless compute engine for containers).
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AWS Lambda Serverless Security. Mistakes, Oversights, and Potential Vulnerabilities
Amazon Web Services (AWS) Lambda is a serverless function-as-a-service (FaaS) platform that lets you deploy, run, and scale code in the cloud as self-contained functions without having to manually configure any infrastructure. Lambda runs your functions on demand in response to specific events, such as an HTTP request from the internet or activity in another AWS service.
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Is FaaS the Same as Serverless?
FaaS is specifically focused on building and running applications as a set of independent functions or microservices. Major cloud providers like AWS (Lambda), Microsoft Azure (Functions), and Google Cloud (Cloud Functions) offer FaaS platforms that allow developers to write and deploy individual functions without managing the underlying infrastructure.
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How To Reduce Operational Costs With AWS Lambda
So AWS Lambda is basically a serverless computing service that is offered by AWS. It enables developers to run the code in response to various events. It protects the developers from the pain of managing the servers. Using a serverless execution model helps the developers to handle provision, manage and scale the servers automatically. Through this approach the developers can fully focus on writing the code instead of dealing with other aspects.
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The 2024 Web Hosting Report
The first product that popularized the term “serverless” was AWS Lambda, which is both the prototypical and archetypical function as a service provider. It also has a great name, which pings back to its envisioned place in the cloud of the future. In computer programming, a lambda, often referred to as a lambda function or lambda expression, is a concise way to represent an anonymous function, which is a function without a name. The concept originates from lambda calculus in mathematical logic and has been adopted by many programming languages, each with its own syntax and characteristics.
- Czym jest funkcja bezserwerowa?
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Use custom rules to validate your compliance
You can build a custom config rules in 2 ways, using AWS Lambda and CloudFormation Guard. Lambda gives you a lot of flexibility, but it also brings complexity of maintaining. CloudFormation Guard is a bit more lightweight in that regard. Yes, you still need to maintain the logic to determine when your resource is compliant or not. But you need to do this in both cases, thus my go to preference is CloudFormation Guard.
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Lambda Scheduling & Event Filtering with EventBridge using Serverless Framework
AWS Lambda: https://aws.amazon.com/lambda/
What are some alternatives?
proposal-explicit-resource-management - ECMAScript Explicit Resource Management
Akka - Build highly concurrent, distributed, and resilient message-driven applications on the JVM
Reactive Streams - Reactive Streams Specification for the JVM
serverless-application-model - The AWS Serverless Application Model (AWS SAM) transform is a AWS CloudFormation macro that transforms SAM templates into CloudFormation templates.
project-loom-c5m - Experiment to achieve 5 million persistent connections with Project Loom virtual threads
hotwire-rails - Use Hotwire in your Ruby on Rails app
ferocity - Write Java expression trees, statements, methods and classes with a LISP-like internal DSL
assemblylift-template-jamstack
Newt - Autogenerate a .Net (C#/EF Core) data project (class library with entities and data contexts) from a Postgres database, plus Graphviz and SQL.
aws-node-termination-handler - Gracefully handle EC2 instance shutdown within Kubernetes
gophercon22-parser-combinators - Simple parser combinator package as shown at GopherCon 2022
Previous Serverless Version 0.5.x - ⚡ Serverless Framework – Use AWS Lambda and other managed cloud services to build apps that auto-scale, cost nothing when idle, and boast radically low maintenance.