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Small Java library for generating dynamic proxies on top of [ByteBuddy](https://github.com/raphw/byte-buddy) or [Javassist](https://github.com/jboss-javassist/javassist). You can generate data transfer objects, rich traits or even whole implicit DAO implementations dynamically at runtime easily. This library solves the complex stuff, so you can focus on application logic. Serializability, cloning are already solved by us. We also aim for transparent and easily debuggable proxies, because as we know proxies is usually part of "magic" for the team. Hence, the name of this library - Proxycian as a magician for the proxies ;)

The Spark Universal Migrator is a data migration Spark application that fetches data from an Oracle database and stores it in a Hive database. It utilizes JDBC to connect to Oracle, processes and converts the data into a Hive-compatible schema, and then transfers it to Hive. The migration process employs iterators to generate queries for data retrieval and utilizes a BlockingQueue in conjunction with a ThreadPoolExecutor for parallel processing of data. Additionally, the application incorporates an Oracle connection pool to efficiently manage and reuse database connections, further optimizing performance and resource utilization during the migration process.

A simple repository to salt a secret key and verify its authenticity. Developed to be used in mobile applications while communicating with a server side using an Api. Instead of sending an apikey straight on the request, SaltedKey can generate a temporary public key, valid for one time use and during a specific time frame, default time is set to 60 seconds. This public key can be sent on request and on server side SaltedKey can verify its authenticity. The Salt is based on time millis and uses the algorithm SHA-256 to create the temporary public key. The public key base will change every time it exceeds the time frame. This library can increase the API security. Even if the public key used on request is exposed, no one will be able to use it again! As it is a one time use only.

Programmatically generate, load, modify, and convert Excel .xlsx spreadsheets in your Java applications. GrapeCity Documents for Excel (GcExcel) is a cross-platform high-speed, small-footprint spreadsheet API library that requires no dependencies on Excel. The powerful calculation engine supports 450+ Excel Functions and custom functions to perform complex calculations. GcExcel is 2x+ faster and uses less memory than Apache POI and allows you to save to XLSX, PDF, HTML, CSV, JSON and Images. Deploy your applications to the cloud, Windows, Mac, or Linux. If you'd like to remove the trial watermark and other trial limitations, please email [email protected] to request your 30-day evaluation key.