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This document discusses several Java logging frameworks: Apache Commons Logging, SLF4J, log4j, and logback. It provides information on the key features of each framework, including supported logging levels, configuration options, and how they relate to each other through bridges that allow switching between frameworks. The focus is on log4j, explaining concepts like loggers, appenders, and layouts, and how log4j is configured through properties files.
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Jackrabbit is an open source content repository for Java that implements the JCR 2.0 specification. It provides a flexible, hierarchical content storage system with features like full text search, versioning, transactions, and observation. Jackrabbit entered the Apache incubator in 2004 and graduated in 2006. It provides APIs and implementations for embedding a content repository, accessing it remotely over RMI, or deploying it as a shared resource using a servlet container or J2EE application server. The document discusses Jackrabbit's architecture, configuration, indexing, data storage, content modeling, and common issues around content hierarchies and concurrent edits.
Scala at Treasure Data
Scala is widely used at Treasure Data for data analytics workflows, management of the Presto query engine, and open-source libraries. Some key uses of Scala include analyzing query logs to optimize Presto performance, developing Prestobase using Scala macros and libraries like Airframe, and integrating Spark with Treasure Data. Treasure Data engineers have also created several open-source Scala libraries, such as wvlet-log for logging and Airframe for dependency injection, and sbt plugins to facilitate packaging, testing, and deployment.
What to expect from Java 9
Java 9 is expected to include several new features and changes, including:
- New collection factory methods like Set.of() and Map.of() that provide immutable collections.
- Enhancements to the Stream API such as takeWhile() and dropWhile().
- Syntax changes like allowing effectively final variables in try-with-resources and @SafeVarargs for private methods.
- The addition of JShell to provide a Java REPL.
- Garbage First (G1) garbage collector becoming the default collector.
- Various performance and logging improvements.
Clojurian Conquest
1. The document introduces a Clojurian named lagénorhynque who is interested in programming languages like Clojure, Haskell, and functional programming.
2. It describes lagénorhynque's contributions to Clojure projects on GitHub and creating Clojure bots for Slack.
3. The Clojurian aims to expand the "Land of Clojure" and has given many talks in Japan about Clojure, functional programming, and spec to help develop the Clojure community.
Javantura v7 - The State of Java - Today and Tomowwow - HUJAK's Community Key...
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This document provides an overview of the current state and future of Java. It discusses the continued growth and popularity of Java over 24+ years as the #1 programming language. It summarizes the major Java Development Kit (JDK) releases from JDK 8 to the latest JDK 14 final release candidate, highlighting new features, preview features, and long-term support versions. The document also discusses the different open-source and commercial options for downloading the JDK, such as Oracle JDK, OpenJDK, Azul Zulu, and others.ELK Stack
The document provides an introduction to the ELK stack, which is a collection of three open source products: Elasticsearch, Logstash, and Kibana. It describes each component, including that Elasticsearch is a search and analytics engine, Logstash is used to collect, parse, and store logs, and Kibana is used to visualize data with charts and graphs. It also provides examples of how each component works together in processing and analyzing log data.
elkstack-161217091231.pdf
The document provides an introduction to the ELK stack, which is a collection of three open source products: Elasticsearch, Logstash, and Kibana. It describes each component, including that Elasticsearch is a search and analytics engine, Logstash is used to collect, parse, and store logs, and Kibana is used to visualize data with charts and graphs. It also provides examples of using each tool and a demo of parsing Apache logs with Logstash and viewing the results in Kibana.
Apache Karaf in DX 7.2 - Developers Meetup - March 2017
Here are the slides of Jahia's Developers Meetup held in Switzerland on March 16, 2017.
The topic of this meetup was: Apache Karaf in DX 7.2.
Logging and Exception
The document discusses exception handling and logging in Java. It describes the exception class hierarchy in Java, the different types of exceptions (checked and unchecked), and how to catch and handle exceptions using try/catch blocks. It also covers creating custom exception classes, re-throwing exceptions, and using try-with-resources to manage resources. For logging, it introduces SLF4J as a logging facade and log4j as a popular logging framework. Log4j uses loggers, appenders, and layouts to log messages at different levels to various outputs.
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Apache Karaf in DX 7.2 - Developers Meetup - March 2017
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App開發執行力release
This document discusses the career of Aircon Chen, a Taiwanese iOS and Android app developer. It notes that Chen began developing apps in 2011 and has since created apps across iOS, Android, and other platforms. The document provides details on Chen's skills and experiences, which include developing user interfaces, integrating advertising networks, and staying up to date on the latest tools and techniques through online resources. Contact information is provided at the end for those interested in connecting with Chen.
Ionic
Ionic is an open source front-end SDK for developing hybrid mobile apps using web technologies like HTML5, AngularJS, and Sass. It allows developers to create an app for both iOS and Android at the same time. To use Ionic, developers must install Node.js, Cordova, and Ionic CLI and then can create a new project, run it in a browser for testing, or build it to run on an Android device.
Apache Maven
Maven is a build automation tool used to manage Java projects. It uses a Project Object Model (POM) file to describe a project, including its dependencies, plugins, and build configuration. Maven has a default build lifecycle with phases like compile, test, package, and deploy. It uses local, central, and remote repositories to retrieve dependencies at build time. Plugins can be used to extend Maven's capabilities for tasks like compiling code and generating reports.
SpringMVC
This document provides an overview of Spring MVC, including its advantages over traditional MVC frameworks. It discusses the MVC design pattern and how Spring MVC follows the Model 2 approach. Key Spring MVC concepts covered include the DispatcherServlet, annotation-driven controllers using @RequestMapping and other annotations, and features for handling requests, models, and validation.
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This document discusses Representational State Transfer (REST) and RESTful APIs. It defines REST and a RESTful web API as using URIs and HTTP methods like GET, POST, PUT, DELETE to access and modify resources. It explains the differences between URLs and URIs, and provides examples of building RESTful APIs using Spring frameworks like Spring 2.5 with Jersey or Spring 3.x with SpringMVC to handle HTTP requests and return JSON or XML responses.
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LORRAINE ANDREI_LEQUIGAN_HOW TO USE ZOOM
Zoom is a comprehensive platform designed to connect individuals and teams efficiently. With its user-friendly interface and powerful features, Zoom has become a go-to solution for virtual communication and collaboration. It offers a range of tools, including virtual meetings, team chat, VoIP phone systems, online whiteboards, and AI companions, to streamline workflows and enhance productivity.
Artificia Intellicence and XPath Extension Functions
The purpose of this presentation is to provide an overview of how you can use AI from XSLT, XQuery, Schematron, or XML Refactoring operations, the potential benefits of using AI, and some of the challenges we face.
原版定制美国纽约州立大学奥尔巴尼分校毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国纽约州立大学奥尔巴尼分校毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Measures in SQL (SIGMOD 2024, Santiago, Chile)
SQL has attained widespread adoption, but Business Intelligence tools still use their own higher level languages based upon a multidimensional paradigm. Composable calculations are what is missing from SQL, and we propose a new kind of column, called a measure, that attaches a calculation to a table. Like regular tables, tables with measures are composable and closed when used in queries.
SQL-with-measures has the power, conciseness and reusability of multidimensional languages but retains SQL semantics. Measure invocations can be expanded in place to simple, clear SQL.
To define the evaluation semantics for measures, we introduce context-sensitive expressions (a way to evaluate multidimensional expressions that is consistent with existing SQL semantics), a concept called evaluation context, and several operations for setting and modifying the evaluation context.
A talk at SIGMOD, June 9–15, 2024, Santiago, Chile
Authors: Julian Hyde (Google) and John Fremlin (Google)
https://doi.org/10.1145/3626246.3653374
Automated software refactoring with OpenRewrite and Generative AI.pptx.pdf
https://2024.springio.net/sessions/automated-software-refactoring-with-openrewrite-and-generative-ai/
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No one wants their application to drag like a car stuck in the slow lane! Yet it’s all too common to encounter bumpy, pothole-filled solutions that slow the speed of any application. Symfony apps are not an exception.
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What is Master Data Management by PiLog Group
PiLog Group's Master Data Record Manager (MDRM) is a sophisticated enterprise solution designed to ensure data accuracy, consistency, and governance across various business functions. MDRM integrates advanced data management technologies to cleanse, classify, and standardize master data, thereby enhancing data quality and operational efficiency.
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The aviation industry has always been a prime target for cybercriminals due to its critical infrastructure and high stakes. In the first quarter of 2024, the sector faced an alarming surge in cybersecurity threats, revealing its vulnerabilities and the relentless sophistication of cyber attackers.
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E-Invoicing Implementation: A Step-by-Step Guide for Saudi Arabian Companies
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Discover the power of Cloud-Based IVR Solutions to streamline communication processes. Embrace scalability and cost-efficiency while enhancing customer experiences with features like automated call routing and voice recognition. Accessible from anywhere, these solutions integrate seamlessly with existing systems, providing real-time analytics for continuous improvement. Revolutionize your communication strategy today with Cloud-Based IVR Solutions. Learn more at: https://thesmspoint.com/channel/cloud-telephony
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AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App
👉👉 Click Here To Get More Info 👇👇
https://sumonreview.com/ai-fusion-buddy-review
AI Fusion Buddy Review: Key Features
✅Create Stunning AI App Suite Fully Powered By Google's Latest AI technology, Gemini
✅Use Gemini to Build high-converting Converting Sales Video Scripts, ad copies, Trending Articles, blogs, etc.100% unique!
✅Create Ultra-HD graphics with a single keyword or phrase that commands 10x eyeballs!
✅Fully automated AI articles bulk generation!
✅Auto-post or schedule stunning AI content across all your accounts at once—WordPress, Facebook, LinkedIn, Blogger, and more.
✅With one keyword or URL, generate complete websites, landing pages, and more…
✅Automatically create & sell AI content, graphics, websites, landing pages, & all that gets you paid non-stop 24*7.
✅Pre-built High-Converting 100+ website Templates and 2000+ graphic templates logos, banners, and thumbnail images in Trending Niches.
✅Say goodbye to wasting time logging into multiple Chat GPT & AI Apps once & for all!
✅Save over $5000 per year and kick out dependency on third parties completely!
✅Brand New App: Not available anywhere else!
✅ Beginner-friendly!
✅ZERO upfront cost or any extra expenses
✅Risk-Free: 30-Day Money-Back Guarantee!
✅Commercial License included!
See My Other Reviews Article:
(1) AI Genie Review: https://sumonreview.com/ai-genie-review
(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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Hand Rolled Applicative User Validation Code Kata
Could you use a simple piece of Scala validation code (granted, a very simplistic one too!) that you can rewrite, now and again, to refresh your basic understanding of Applicative operators <*>, <*, *>?
The goal is not to write perfect code showcasing validation, but rather, to provide a small, rough-and ready exercise to reinforce your muscle-memory.
Despite its grandiose-sounding title, this deck consists of just three slides showing the Scala 3 code to be rewritten whenever the details of the operators begin to fade away.
The code is my rough and ready translation of a Haskell user-validation program found in a book called Finding Success (and Failure) in Haskell - Fall in love with applicative functors.
Webinar On-Demand: Using Flutter for Embedded
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
LORRAINE ANDREI_LEQUIGAN_HOW TO USE WHATSAPP.pptx
WhatsApp offers simple, reliable, and private messaging and calling services for free worldwide. With end-to-end encryption, your personal messages and calls are secure, ensuring only you and the recipient can access them. Enjoy voice and video calls to stay connected with loved ones or colleagues. Express yourself using stickers, GIFs, or by sharing moments on Status. WhatsApp Business enables global customer outreach, facilitating sales growth and relationship building through showcasing products and services. Stay connected effortlessly with group chats for planning outings with friends or staying updated on family conversations.
Energy consumption of Database Management - Florina Jonuzi
Presentation from Florina Jonuzi at the GSD Community Stage Meetup on June 06, 2024
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Dr. Jesús Barrasa, Head of Solutions Architecture for EMEA, Neo4j
Découvrez les dernières innovations de Neo4j, et notamment les dernières intégrations cloud et les améliorations produits qui font de Neo4j un choix essentiel pour les développeurs qui créent des applications avec des données interconnectées et de l’IA générative.
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UI5con 2024 - Keynote: Latest News about UI5 and it’s Ecosystem
Learn about the latest innovations in and around OpenUI5/SAPUI5: UI5 Tooling, UI5 linter, UI5 Web Components, Web Components Integration, UI5 2.x, UI5 GenAI.
Recording:
https://www.youtube.com/live/MSdGLG2zLy8?si=INxBHTqkwHhxV5Ta&t=0
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Log
- 3. Log Library • Apache Commons Logging(JCL) • Simple Logging Facade For Java(SLF4J) • log4j(Log for Java) • logback • Java Util Logging (JUL)
- 4. Apache commons logging (JCL) • Log interface • log • Jakarta Commons Logging(JCL)
- 5. Simple Logging Facade For Java (SLF4J) • Log interface • log • log bridge jar (ex: log4j log, log4j-over-slf4j.jar)
- 6. log4j by Ceki Gülcü • 1.x 2.x • Log4j 2 Log4j 2 18,000,000 /s Logback Log4j 1 < 2,000,000/ s 9 • Log 8 (1.x 7 ) • .properties ,.XML Java
- 7. logback • log4j • log4j log4j 10
- 9. Jar • jar Apache commons logging • commons-logging-x.x.jar classpath
- 10. Log • commons-logging.properties org.apache.commons.logging.Log • system properties • classpath Log4J • JDK1.4+ JDK • SimpleLog
- 11. Log • Log log = LogFactory.getLog(LogTest.class); • log.debug(…) • log.info(…) • log.warn(…) • log.error(…)
- 12. Log4j
- 13. Log4j • Logger - , logging • Appender - log message • Layout - log message
- 14. • root logger log4j • Logger, Logger , com.fpg.ec com.fpg.ec.action log log
- 15. Log Log4j • TRACE • DEBUG • INFO • WARN • ERROR • FATAL Logger " " log message
- 16. log4j.property • rootLogger DEBUG • Appender 2 stdout DB • logger 3 , ibatis, apache, springframework
- 18. • Log4j • Log4j (2) • commons logging