About the project: openLooKeng is a drop in engine which enables in-situ analytics on any data, anywhere, including geographically remote data sources. It provides a global view of all of your data via its SQL 2003 interface. With high availability, auto-scaling, built-in caching and indexing support, openLooKeng is ready for enterprise workload with required reliability.
About the project: free and open-source face recognition service that can be easily integrated into any system without prior machine learning skills. CompreFace provides REST API for face recognition, face verification, face detection, landmark detection, age, and gender recognition and is easily deployed with docker.
About the project: high-performance, open-source SQL database for applications in financial services, IoT, machine learning, DevOps and observability. It includes endpoints for PostgreSQL wire protocol, high-throughput schema-agnostic ingestion using InfluxDB Line Protocol, and a REST API for queries, bulk imports, and exports.
About the project: fast and robust semantic search tool for C and C++ codebases. It is designed to help security researchers identify interesting functionality in large codebases.
About the project: super-fast compiler written in Rust; producing widely-supported JavaScript from modern standards and TypeScript. It’s used by tools like Next.js, Parcel, and Deno, as well as companies like Vercel, ByteDance, Tencent, Shopify, and more.
About the project: blazing fast terminal-UI for Git written in Rust.
Obversvations
CompreFace project looks pretty interesting if you want to try or use face recognition functionality in your application.
QuestDB one more player in SQL DB world used by such companines as Airbus, Toggle, Turk Telecom and others.
Solana is a clear leader in Rust’s “new starts” repositories, almost every monthly review Rust section includes any of Solana-related repositories. This month’s review is the Anchor project.
Starting newly with Rust or switching from other programming languages and don’t know how to implement a specific algorithm in Rust, so see The Algorithms – Rust repository.
Based on official documentation SWC is 20x faster than Babel on a single thread and 70x faster on four cors, if you use Babel and want to build your projects faster SWC is worth trying.
If Git CLI for some reason doesn’t work for you, there is a GitUI project which probably you want to try.
As I see there is some confusion related to validation annotations usage in Java. Let’s see a quick example of the three most confusing annotations from the Hibernate Validator.
@NotNull
public class User {
@NotNull
private String name;
// ...
}
Value passed
Validation result
<null>
🍎 – validation failed
“”
🍏 – validation passed
" "
🍏 – validation passed
“Alex”
🍏 – validation passed
Note: only null values are not allowed, emtpy value will pass this validation.
@NotEmpty
public class User {
@NotEmpty
private String name;
// ...
}
Value passed
Validation result
<null>
🍎 – validation failed
“”
🍎 – validation failed
" "
🍏 – validation passed
“Alex”
🍏 – validation passed
Note: null and empty size/length values are not allowed, values with multiple spaces will pass this validation.
@NotBlank
public class User {
@NotBlank
private String name;
// ...
}
Value passed
Validation result
<null>
🍎 – validation failed
“”
🍎 – validation failed
" "
🍎 – validation failed
“Alex”
🍏 – validation passed
Note: null values are not allowed and trimmed length must be greater than zero.
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