The document discusses improvements made to the Informix Java Driver (JDBC). It summarizes that the driver was modernized by: 1) Shortening build and test times from hours to minutes; 2) Adding over 100 new tests and API features for JDBC 4.0 compliance; and 3) Publishing the driver to Maven to simplify access and updates. Key changes included refactoring tests, adding metrics for quality, and allowing streaming of large objects from JDBC result sets.
The document summarizes some of the key new features and changes in Java 8. It discusses the removal of the JDBC-ODBC bridge and additions to JDBC 4.2. It also mentions new classes and methods added to packages for concurrency, networking, and XML processing. Enhancements to the HotSpot VM include hardware-accelerated AES encryption. Default methods and Java Mission Control 5.3 are also noted. The latter part provides an example application using new features like lambda expressions and streams to analyze sentiment in tweets.
Java 9 is just around the corner, and yet many of us developers have yet to use Java 8 features in an application. The goal of this presentation is to move beyond slide-sized examples of streams and lambdas, and to show how to build a fully working end-to-end application using just the core libraries available in the latest version of Java.
In this session, Trisha will build a Java 8 application live. This application will consume a real-time feed of high velocity data, contain services that make sense of the data, and present it in a JavaFX dashboard. Along the way, we’ll encounter Java 8 streams, lambdas, new ways of working with collections, and probably bump into the new date and time API.
A short introduction (with many examples) to the Scala programming language and also an introduction to using the Play! Framework for modern, safe, efffcient and reactive web applications.
JDK.IO 2016 (http://jdk.io)
Java EE 7 introduced a new batch processing API. This session will go over how to use the batch processing API introduced with Java EE 7. This API is makes it easy to implement long running data/compute intensive jobs which need to be scheduled or initiated on-demand. Basics of the API will be demonstrated via code samples. The API will also be compared to Spring Batching and Hadoop to provide context and guidance on when these technologies are appropriate.
This document discusses asynchronous I/O in Java and Scala using the Play Framework. It describes how LinkedIn uses a service-oriented architecture with hundreds of services making requests to each other. It then covers how Play supports non-blocking I/O using asynchronous code, promises, and futures to allow parallel requests without blocking threads. Key points covered include using map and flatMap to transform promises and futures, handling errors and timeouts, and the benefits of non-blocking I/O for scalability.
JavaOne 2015 : How I Rediscovered My Coding Mojo by Building an IoT/Robotics ...Mark West
Is your project dragging you down? Are you stuck with the same old technologies? Are you bored with coding? If you answer “yes” to any of these questions, you may have lost your coding mojo—just like this session’s speaker did a few years back. Come hear how he learned new technologies and rediscovered his coding mojo by building an IoT/robotics prototype: a voice-controlled robot. Along the way, you’ll hear about HTML5 speech recognition, controlling hardware with Node.js and Johnny-Five, using WebSocket and MQTT for communication between components, and finally how you can easily combine the Raspberry Pi and Arduino platforms to gain ultimate power over your own projects.
The document summarizes some of the key new features and changes in Java 8. It discusses the removal of the JDBC-ODBC bridge and additions to JDBC 4.2. It also mentions new classes and methods added to packages for concurrency, networking, and XML processing. Enhancements to the HotSpot VM include hardware-accelerated AES encryption. Default methods and Java Mission Control 5.3 are also noted. The latter part provides an example application using new features like lambda expressions and streams to analyze sentiment in tweets.
Java 9 is just around the corner, and yet many of us developers have yet to use Java 8 features in an application. The goal of this presentation is to move beyond slide-sized examples of streams and lambdas, and to show how to build a fully working end-to-end application using just the core libraries available in the latest version of Java.
In this session, Trisha will build a Java 8 application live. This application will consume a real-time feed of high velocity data, contain services that make sense of the data, and present it in a JavaFX dashboard. Along the way, we’ll encounter Java 8 streams, lambdas, new ways of working with collections, and probably bump into the new date and time API.
A short introduction (with many examples) to the Scala programming language and also an introduction to using the Play! Framework for modern, safe, efffcient and reactive web applications.
JDK.IO 2016 (http://jdk.io)
Java EE 7 introduced a new batch processing API. This session will go over how to use the batch processing API introduced with Java EE 7. This API is makes it easy to implement long running data/compute intensive jobs which need to be scheduled or initiated on-demand. Basics of the API will be demonstrated via code samples. The API will also be compared to Spring Batching and Hadoop to provide context and guidance on when these technologies are appropriate.
This document discusses asynchronous I/O in Java and Scala using the Play Framework. It describes how LinkedIn uses a service-oriented architecture with hundreds of services making requests to each other. It then covers how Play supports non-blocking I/O using asynchronous code, promises, and futures to allow parallel requests without blocking threads. Key points covered include using map and flatMap to transform promises and futures, handling errors and timeouts, and the benefits of non-blocking I/O for scalability.
JavaOne 2015 : How I Rediscovered My Coding Mojo by Building an IoT/Robotics ...Mark West
Is your project dragging you down? Are you stuck with the same old technologies? Are you bored with coding? If you answer “yes” to any of these questions, you may have lost your coding mojo—just like this session’s speaker did a few years back. Come hear how he learned new technologies and rediscovered his coding mojo by building an IoT/robotics prototype: a voice-controlled robot. Along the way, you’ll hear about HTML5 speech recognition, controlling hardware with Node.js and Johnny-Five, using WebSocket and MQTT for communication between components, and finally how you can easily combine the Raspberry Pi and Arduino platforms to gain ultimate power over your own projects.
Play Framework makes it easy to build web applications with Java & Scala. This presentation give a idea of how play is implemented using Netty, how routes work. How we get calls in controller's action. Walk through guice and logging.
Exploring Java Heap Dumps (Oracle Code One 2018)Ryan Cuprak
Memory leaks are not always simple or easy to find. Heap dumps from production systems are often gigantic (4+ gigs) with millions of objects in memory. Simple spot checking with traditional tools is woefully inadequate in these situations, especially with real data. Leaks can be entire object graphs with enormous amounts of noise. This session will show you how to build custom tools using the Apache NetBeans Profiler/Heapwalker APIs. Using these APIs, you can read and analyze Java heaps programmatically to ask really hard questions. This gives you the power to analyze complex object graphs with tens of thousands of objects in seconds.
Akka is using the Actors together with STM to create a unified runtime and programming model for scaling both UP (multi-core) and OUT (grid/cloud). Akka provides location transparency by abstracting away both these tangents of scalability by turning them into an ops task. This gives the Akka runtime freedom to do adaptive automatic load-balancing, cluster rebalancing, replication & partitioning
This document discusses Java releases and commercial support for Java. It provides an overview of the history of Java releases from Java 1 to Java 11. It describes the new faster release cycle introduced in 2018. It also outlines the commercial support models from various vendors like Oracle, Azul, and Bellsoft, including pricing structures based on the number of servers/processors.
DEVNET-2002 Coding 201: Coding Skills 201: Going Further with REST and Python...Cisco DevNet
Are you ready to dive deeper into using Python and REST? This class continues the Coding Skills 101 topics and goes deeper into techniques for parsing JSON, and debugging.
Performance Tuning Oracle Weblogic Server 12cAjith Narayanan
The document summarizes techniques for monitoring and tuning Oracle WebLogic server performance. It discusses monitoring operating system metrics like CPU, memory, network and I/O usage. It also covers monitoring and tuning the Java Virtual Machine, including garbage collection. Specific tools are outlined for monitoring servers like the WebLogic admin console, and command line JVM tools. The document provides tips for configuring domain and server parameters to optimize performance, including enabling just-in-time starting of internal applications, configuring stuck thread handling, and setting connection backlog buffers.
Fault Tolerance in Distributed EnvironmentOrkhan Gasimov
The document discusses various techniques for achieving fault tolerance in distributed systems, including service coordination, handling high load, RPC mechanics, circuit breakers, N-modular redundancy, recovery blocks, actors and error kernels, and instance healers. It describes common issues that can occur like network failures and overloaded services, and explains solutions such as service discovery, load balancing, timeouts, and dynamically scaling services horizontally.
This is a high level presentation I delivered at BIWA Summit. It's just some high level thoughts related to today's NoSQL and Hadoop SQL engines (not deeply technical).
Open Ldap Integration and Configuration with Lifray 6.2.LDAP (Lightweight Directory Access Protocol) is a software protocol for enabling anyone to locate organizations, individuals, and other resources such as files and devices in a network, whether on the public Internet or on a corporate intranet
.NET Core, ASP.NET Core Course, Session 5aminmesbahi
This document summarizes content from a .NET Core training course session on garbage collection. It discusses the GC class and its properties and methods for controlling garbage collection. It also covers destructors in C#, how they implicitly call the base class finalizer, and how finalization occurs recursively down the inheritance chain. The document concludes by introducing the PerfView performance analysis tool for capturing heap snapshots and comparing them to identify objects still in memory that cannot be collected.
WebSocket technology allows for bi-directional and full-duplex communication between clients and servers. The Java API for WebSocket provides annotations and interfaces for implementing WebSocket on both the client- and server-sides in Java applications. Java EE 7 includes several new APIs such as JSON processing, batch processing, concurrency utilities and JMS 2.0. Future versions of Java EE will focus on areas like cloud computing, security, and HTML5 integration.
As the leading full-stack application framework for Java SE and EE, the Spring Framework continues to deliver significant benefits to Java developers, increasing development productivity and runtime performance while improving test coverage and application quality.
In this talk, core Spring Framework committer Sam Brannen will provide attendees an overview of the new features in Spring 3.2 as well as a sneak peak at the roadmap for 4.0.
Spring Framework 3.2 builds on several themes delivered in 3.1 with a continued focus on asynchronous MVC processing with Servlet 3.0, support for using @Autowired and @Value as meta-annotations, support for custom @Bean definition annotations, and early support for JCache 0.5. Regarding the internals, CGLIB 3.0 and ASM 4.0 have been inlined, and the framework is now built with Gradle and hosted on GitHub. For those interested in testing their Spring-based web applications, Spring 3.2 offers new support for loading WebApplicationContexts in the TestContext framework, and the formerly standalone Spring MVC Test project is now included in the spring-test module, allowing for first-class testing of Spring MVC applications.
This document discusses common misconceptions around Java EE concurrency and provides best practices for asynchronous and parallel programming in Java EE. It covers improper uses of threads, thread pools, and synchronization, and recommends using message-driven beans, Java EE singleton beans, asynchronous methods, and the fork/join framework as better alternatives. The document also provides code examples and discusses transaction management, load balancing, and throughput.
Oracle WebLogic Server is the application server that offers the best integration with Oracle Database, including strong integration with Oracle Database advanced features. This session covers integration in areas such as Oracle Database’s Application Continuity feature and Oracle WebLogic Server’s Active GridLink for RAC feature, which provide mission-critical applications with high availability despite database outages. It reviews test results demonstrating these benefits and discusses how the integration of Oracle WebLogic Server data sources with database-resident connection pooling allows for better sharing and more-efficient use of Oracle Database resources. As always, this presentation and forward-looking statements are protected by the included Safe Harbor slide.
.NET Core, ASP.NET Core Course, Session 6aminmesbahi
This document provides an overview and agenda for Session 6 of a .NET Core and ASP.NET Core training course. It introduces ASP.NET Core 1.0, how to start ASP.NET core applications using the Startup class, and middleware in ASP.NET core. Key topics covered include what ASP.NET Core is, the ASP.NET Core application anatomy, methods of the WebHostBuilder class, anatomy of the Startup class, developing and using middleware, and built-in middleware. Examples of middleware configuration are also demonstrated.
This document compares several Java JSON parsers based on various criteria. It provides an overview of JSON and the Java APIs for processing JSON (JSR 339 and JSR 353). It then evaluates parsers like Jackson, Google GSON, javax.json and others based on criteria like community activity, performance, API features, dependencies and license. The conclusion is that Google GSON is best for small data and Jackson for large data according to previous benchmarks. It asks which parser may be best for RAM-constrained or IoT applications.
Connection pooling optimizes the time required to establish a connection with a database by creating a pool of reusable connections. It initially takes time to set up the connection pool but avoids repeatedly opening and closing connections, instead returning existing open connections from the pool. Most JDBC drivers and application servers support connection pooling through connection pool utilities like Apache Commons DBCP which is used to pool JDBC connections from a pool managed by the application server.
These slides would share our experiences in reusing the legacy automation testing code (Selenium+xpath) in IE. To reuse our legacy code in IE, we explored three techinques, i.e., CSS selectors, jQuery selectors, Javascript-xpath library.
These slides would discuss each technique and explain how we addressed the limitations of existing teachniques. The discussions would present how to rejuvenate the legacy code at code level and library level. Finally, the best practices would be summarized based on the practical experiences.
MS Office install has required the removal of the previously installed version of your Office product on the device or system. Office 365 and other subscription offers the various features, which you do not get when you do not purchase the Office product. The office can be used free, as MS provides the trial versions of every tool. VISIT HERE: Office setup TODAY.
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.
Video at https://www.youtube.com/watch?v=nD1eFbql8jg
This talk will demonstrate advanced testing practices used by the XWiki open source project, and using Java, Maven, Docker and Jenkins:
* Testing for backward compatibility with Revapi and an associated strategy
* Testing for coverage with Jacoco and defining a viable strategy for slowing improving the situation
* Testing the quality of your tests with Descartes Mutation testing
Automatically enriching your test suite with DSpot
* Testing various configurations with Docker containers and Jenkins
Play Framework makes it easy to build web applications with Java & Scala. This presentation give a idea of how play is implemented using Netty, how routes work. How we get calls in controller's action. Walk through guice and logging.
Exploring Java Heap Dumps (Oracle Code One 2018)Ryan Cuprak
Memory leaks are not always simple or easy to find. Heap dumps from production systems are often gigantic (4+ gigs) with millions of objects in memory. Simple spot checking with traditional tools is woefully inadequate in these situations, especially with real data. Leaks can be entire object graphs with enormous amounts of noise. This session will show you how to build custom tools using the Apache NetBeans Profiler/Heapwalker APIs. Using these APIs, you can read and analyze Java heaps programmatically to ask really hard questions. This gives you the power to analyze complex object graphs with tens of thousands of objects in seconds.
Akka is using the Actors together with STM to create a unified runtime and programming model for scaling both UP (multi-core) and OUT (grid/cloud). Akka provides location transparency by abstracting away both these tangents of scalability by turning them into an ops task. This gives the Akka runtime freedom to do adaptive automatic load-balancing, cluster rebalancing, replication & partitioning
This document discusses Java releases and commercial support for Java. It provides an overview of the history of Java releases from Java 1 to Java 11. It describes the new faster release cycle introduced in 2018. It also outlines the commercial support models from various vendors like Oracle, Azul, and Bellsoft, including pricing structures based on the number of servers/processors.
DEVNET-2002 Coding 201: Coding Skills 201: Going Further with REST and Python...Cisco DevNet
Are you ready to dive deeper into using Python and REST? This class continues the Coding Skills 101 topics and goes deeper into techniques for parsing JSON, and debugging.
Performance Tuning Oracle Weblogic Server 12cAjith Narayanan
The document summarizes techniques for monitoring and tuning Oracle WebLogic server performance. It discusses monitoring operating system metrics like CPU, memory, network and I/O usage. It also covers monitoring and tuning the Java Virtual Machine, including garbage collection. Specific tools are outlined for monitoring servers like the WebLogic admin console, and command line JVM tools. The document provides tips for configuring domain and server parameters to optimize performance, including enabling just-in-time starting of internal applications, configuring stuck thread handling, and setting connection backlog buffers.
Fault Tolerance in Distributed EnvironmentOrkhan Gasimov
The document discusses various techniques for achieving fault tolerance in distributed systems, including service coordination, handling high load, RPC mechanics, circuit breakers, N-modular redundancy, recovery blocks, actors and error kernels, and instance healers. It describes common issues that can occur like network failures and overloaded services, and explains solutions such as service discovery, load balancing, timeouts, and dynamically scaling services horizontally.
This is a high level presentation I delivered at BIWA Summit. It's just some high level thoughts related to today's NoSQL and Hadoop SQL engines (not deeply technical).
Open Ldap Integration and Configuration with Lifray 6.2.LDAP (Lightweight Directory Access Protocol) is a software protocol for enabling anyone to locate organizations, individuals, and other resources such as files and devices in a network, whether on the public Internet or on a corporate intranet
.NET Core, ASP.NET Core Course, Session 5aminmesbahi
This document summarizes content from a .NET Core training course session on garbage collection. It discusses the GC class and its properties and methods for controlling garbage collection. It also covers destructors in C#, how they implicitly call the base class finalizer, and how finalization occurs recursively down the inheritance chain. The document concludes by introducing the PerfView performance analysis tool for capturing heap snapshots and comparing them to identify objects still in memory that cannot be collected.
WebSocket technology allows for bi-directional and full-duplex communication between clients and servers. The Java API for WebSocket provides annotations and interfaces for implementing WebSocket on both the client- and server-sides in Java applications. Java EE 7 includes several new APIs such as JSON processing, batch processing, concurrency utilities and JMS 2.0. Future versions of Java EE will focus on areas like cloud computing, security, and HTML5 integration.
As the leading full-stack application framework for Java SE and EE, the Spring Framework continues to deliver significant benefits to Java developers, increasing development productivity and runtime performance while improving test coverage and application quality.
In this talk, core Spring Framework committer Sam Brannen will provide attendees an overview of the new features in Spring 3.2 as well as a sneak peak at the roadmap for 4.0.
Spring Framework 3.2 builds on several themes delivered in 3.1 with a continued focus on asynchronous MVC processing with Servlet 3.0, support for using @Autowired and @Value as meta-annotations, support for custom @Bean definition annotations, and early support for JCache 0.5. Regarding the internals, CGLIB 3.0 and ASM 4.0 have been inlined, and the framework is now built with Gradle and hosted on GitHub. For those interested in testing their Spring-based web applications, Spring 3.2 offers new support for loading WebApplicationContexts in the TestContext framework, and the formerly standalone Spring MVC Test project is now included in the spring-test module, allowing for first-class testing of Spring MVC applications.
This document discusses common misconceptions around Java EE concurrency and provides best practices for asynchronous and parallel programming in Java EE. It covers improper uses of threads, thread pools, and synchronization, and recommends using message-driven beans, Java EE singleton beans, asynchronous methods, and the fork/join framework as better alternatives. The document also provides code examples and discusses transaction management, load balancing, and throughput.
Oracle WebLogic Server is the application server that offers the best integration with Oracle Database, including strong integration with Oracle Database advanced features. This session covers integration in areas such as Oracle Database’s Application Continuity feature and Oracle WebLogic Server’s Active GridLink for RAC feature, which provide mission-critical applications with high availability despite database outages. It reviews test results demonstrating these benefits and discusses how the integration of Oracle WebLogic Server data sources with database-resident connection pooling allows for better sharing and more-efficient use of Oracle Database resources. As always, this presentation and forward-looking statements are protected by the included Safe Harbor slide.
.NET Core, ASP.NET Core Course, Session 6aminmesbahi
This document provides an overview and agenda for Session 6 of a .NET Core and ASP.NET Core training course. It introduces ASP.NET Core 1.0, how to start ASP.NET core applications using the Startup class, and middleware in ASP.NET core. Key topics covered include what ASP.NET Core is, the ASP.NET Core application anatomy, methods of the WebHostBuilder class, anatomy of the Startup class, developing and using middleware, and built-in middleware. Examples of middleware configuration are also demonstrated.
This document compares several Java JSON parsers based on various criteria. It provides an overview of JSON and the Java APIs for processing JSON (JSR 339 and JSR 353). It then evaluates parsers like Jackson, Google GSON, javax.json and others based on criteria like community activity, performance, API features, dependencies and license. The conclusion is that Google GSON is best for small data and Jackson for large data according to previous benchmarks. It asks which parser may be best for RAM-constrained or IoT applications.
Connection pooling optimizes the time required to establish a connection with a database by creating a pool of reusable connections. It initially takes time to set up the connection pool but avoids repeatedly opening and closing connections, instead returning existing open connections from the pool. Most JDBC drivers and application servers support connection pooling through connection pool utilities like Apache Commons DBCP which is used to pool JDBC connections from a pool managed by the application server.
These slides would share our experiences in reusing the legacy automation testing code (Selenium+xpath) in IE. To reuse our legacy code in IE, we explored three techinques, i.e., CSS selectors, jQuery selectors, Javascript-xpath library.
These slides would discuss each technique and explain how we addressed the limitations of existing teachniques. The discussions would present how to rejuvenate the legacy code at code level and library level. Finally, the best practices would be summarized based on the practical experiences.
MS Office install has required the removal of the previously installed version of your Office product on the device or system. Office 365 and other subscription offers the various features, which you do not get when you do not purchase the Office product. The office can be used free, as MS provides the trial versions of every tool. VISIT HERE: Office setup TODAY.
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.
Video at https://www.youtube.com/watch?v=nD1eFbql8jg
This talk will demonstrate advanced testing practices used by the XWiki open source project, and using Java, Maven, Docker and Jenkins:
* Testing for backward compatibility with Revapi and an associated strategy
* Testing for coverage with Jacoco and defining a viable strategy for slowing improving the situation
* Testing the quality of your tests with Descartes Mutation testing
Automatically enriching your test suite with DSpot
* Testing various configurations with Docker containers and Jenkins
This document summarizes 10 upcoming features in JDK 7:
1. Switch statements can now use Strings as case values.
2. Automatic Resource Management (ARM) simplifies try-with-resources statements.
3. Dynamic method invocation allows calling methods only known at runtime.
4. ThreadLocalRandom provides thread-safe random number generation.
5. java.util.Objects contains utility methods for null checks and hashCode/equals.
6. Deep equals allows deep comparison of objects and arrays.
7. Exceptions can be caught by multiple exception types.
8. Static methods can now be overridden in interfaces.
9. The new File API improves file I/O exceptions and performance.
Josh Juneau gives a whirlwind tour of migrating to Jakarta EE 10. He discusses the changes from Jakarta EE 8 to EE 10 including moving to the Eclipse Foundation and namespace changes. He demonstrates how to get started with EE 10 and highlights new features in concurrency, CDI, JSON processing, and security. Strategies for upgrading projects to EE 10 like manual changes or using utilities are presented. Finally, he outlines what is coming in the next EE 11 release.
Станислав Сидоренко «DeviceHive Java Server – миграция на Spring Boot»DataArt
The document discusses migrating the DeviceHive Java server from a Java EE implementation to a Spring Boot implementation. It describes DeviceHive as an open-source M2M framework that allows two-way communication with remote devices using cloud middleware. It then outlines some of the key components in the existing Java EE implementation and how they would map to Spring and Spring Boot, including using Spring MVC instead of JAX-RS, Spring services instead of EJBs, and deploying to Tomcat instead of a full Java EE server. It also discusses features of Spring Boot like easy deployment of standalone applications and auto-configuration of common dependencies.
The document discusses streams API, which enables asynchronous I/O processing by reading and writing data chunks. It can pipe data between streams and supports automatic transformations. The spec defines ReadableStream, WritableStream, and TransformStream interfaces. It is useful for tasks like loading video segments or sending messages over websockets. The implementation in browsers uses JavaScript builtins tied to WebIDL to define the API in a maintainable and performant way while avoiding memory issues, though it requires care around security.
Laying the Foundation for Ionic Platform Insights on SparkIonic Security
The document discusses Ionic Security's use of Spark and Databricks to enable low-cost and flexible reporting from their transaction log data. Some key goals were reducing costs from their previous Elasticsearch solution, enabling quick development of domain-specific reports, and laying the foundation for advanced analytics. They built a Scala Spark job that ingests log data from S3 and runs configurable report queries to output results. This allows flexible querying while keeping costs low. Lessons learned included benefits of Scala for Spark development but its learning curve, advantages of a single uber jar workflow, and pushing complex logic into Spark user-defined functions.
Altitude San Francisco 2018: Testing with Fastly WorkshopFastly
A crucial step for continuous integration and continuous delivery with Fastly is testing the service configuration to provide confidence in changes. This workshop will cover unit-testing VCL, component testing a service as a black box, systems testing a service end-to-end and stakeholder acceptance testing.
InterConnect 2016 Java EE 7 Overview (PEJ-5296)Kevin Sutter
Java EE 7 is an update to the Java Platform, Enterprise Edition that includes new APIs and functionality for batch processing, JSON processing, WebSocket, RESTful web services, and more. Key features include batch applications, JSON processing improvements, WebSocket support, simplified JMS API, and more annotated POJOs with less boilerplate code. WebSphere Application Server and IBM WebSphere Liberty support Java EE 7.
Jakarta EE is an open source Java platform that provides a wide range of APIs for building enterprise applications. It is made up of specifications covering areas like web services, security, and object-relational mapping. The document discusses the history and evolution of Jakarta EE, its relationship to other technologies like Spring and MicroProfile, and its importance for businesses, careers, and the Java ecosystem. It also outlines proposals for future versions like Jakarta EE 10 that aim to improve areas like security, messaging, and NoSQL support.
Access Data from XPages with the Relational ControlsTeamstudio
Did you know that Domino and XPages allows for the easy access of relational data? These exciting capabilities in the Extension Library can greatly enhance the capability of your applications and allow access to information beyond Domino. Howard and Paul will discuss what you need to get started, what controls allow access to relational data, and the new @Functions available to incorporate relational data in your Server Side JavaScript programming.
SpringOne Platform 2017
Juergen Hoeller, Pivotal
"Spring Framework 5.0 brings a lot of refinements all across the framework: some of rather obvious elements of our major programming model themes (functional & reactive)... but also some less prominent and less commonly presented features.
This brief session highlights a few personal favorites beyond the major themes."
Kotlin @ Coupang Backed - JetBrains Day seoul 2018Sunghyouk Bae
Kotlin Backend @ Coupang discusses Coupang's adoption of Kotlin for backend development. Some of the key reasons for adopting Kotlin included improving code safety, readability and testability. Example uses of Kotlin included developing common libraries, components like a Korean tokenizer, a Kafka client, an audit tool and a product creation pipeline system. Spring Data Requery was also developed as an alternative to JPA/Hibernate that provided better performance. Overall, Kotlin helped improve code quality, simplify asynchronous programming and increase development productivity at Coupang.
Distributed & Highly Available server applications in Java and ScalaMax Alexejev
This document summarizes a presentation about distributed and highly available server applications in Java and Scala. It discusses the Talkbits architecture, which uses lightweight SOA principles with stateless edge services and specialized systems to manage state. The presentation describes using the Finagle library as a distributed RPC framework with Apache Zookeeper for service discovery. It also covers configuration, deployment, monitoring and logging of services using tools like SLF4J, Logback, CodaHale metrics, Jolokia, Fabric, and Datadog.
This document discusses servlets, which are Java programs that extend the capabilities of web servers to enable dynamic web content. Servlets run on the server-side and generate HTML responses to HTTP requests from clients. The document covers the basics of servlets, how they interface with web servers, their lifecycle including initialization and destruction, advantages over previous technologies like CGI, and implementation details.
This document discusses continuous integration practices used by various companies including KuberDock, OpenStack, Spotify, and Ancestry. It describes how OpenStack uses Zuul for its CI/CD pipeline involving over 800 projects and 2,500 contributors. Spotify uses Helios for seamless monthly desktop client releases across 12,000 servers and 100 million users. KuberDock currently uses Vagrant and Ansible for automated dev environments but plans to scale testing through parallel pipelines and make CI services central to its release and testing processes.
The document provides an overview of servlets, including:
- What servlets are and how they work
- The lifecycle of a servlet from initialization to handling requests to destruction
- Options for server-side development like CGI, FastCGI, PHP
- Advantages of using servlets like performance, portability, and security
In this workshop we would like to take a closer look at the new features of Java 7 and Java 8.
Java 7 has brought a couple of language enhancements to assist developers in their daily programming tasks and starting from Java 8 we finally have the opportunity to include a functional programming touch to Java thanks to Lambdas! Lambdas allow us to specify closures to create clean and brief solutions for which we would otherwise be obligated to write down a lot of boilerplate code.
For example in order to sort a List of Strings based on their length we can now write the following code:
Collections.sort(list, (s1, s2) -> s1.length() - s2.length());
Besides lambdas, Java 8 also comes with extension methods, allowing us to write interfaces containing implemented methods, streams and bulk data operations, granting us the opportunity to chain operations on collections to obtain a filtered or transformed set of the elements in our collection, and the possibility to pass functions as parameters. These features alone will have a major impact on the way how Java APIs can be written. There's also a brand new Date and Time API inspired on the popular JodaTime API and a couple of other language enhancements to aid Java developers in writing solutions in a more elegant way.
Be sure to follow this workshop to stay up to date with the latest evolutions of the Java programming language. Java 8 is definitely an update of the programming language which you don't want to miss out on!
The document discusses unit testing with the Spock testing framework. It introduces Spock and outlines key concepts like the three pillars of good unit tests, Spock idioms, mocks and stubs, and continuous integration. Spock provides an expressive testing language based on Groovy that makes tests more readable, maintainable and trustworthy. Examples demonstrate how to write feature methods, use blocks, verify interactions, stub implementations, test exceptions, integrate with Spring, and perform HTTP calls and data-driven testing with Spock.
This document provides an overview of servlets and JSPs. It discusses how servlets were developed to address disadvantages of CGI programs. Servlets run within a web container and have a lifecycle of init(), service(), and destroy() methods. The document also covers implementing a simple servlet, using HttpServletRequest and HttpServletResponse objects, and configuring servlets in web.xml. It describes how JSPs work by being converted to servlets and discusses JSP directives, actions, and scripting elements.
Similar to Informix Java Driver Improvements 4.10.JC8 (20)
The Power of Visual Regression Testing_ Why It Is Critical for Enterprise App...kalichargn70th171
Visual testing plays a vital role in ensuring that software products meet the aesthetic requirements specified by clients in functional and non-functional specifications. In today's highly competitive digital landscape, users expect a seamless and visually appealing online experience. Visual testing, also known as automated UI testing or visual regression testing, verifies the accuracy of the visual elements that users interact with.
DevOps Consulting Company | Hire DevOps Servicesseospiralmantra
Spiral Mantra excels in providing comprehensive DevOps services, including Azure and AWS DevOps solutions. As a top DevOps consulting company, we offer controlled services, cloud DevOps, and expert consulting nationwide, including Houston and New York. Our skilled DevOps engineers ensure seamless integration and optimized operations for your business. Choose Spiral Mantra for superior DevOps services.
https://www.spiralmantra.com/devops/
Transforming Product Development using OnePlan To Boost Efficiency and Innova...OnePlan Solutions
Ready to overcome challenges and drive innovation in your organization? Join us in our upcoming webinar where we discuss how to combat resource limitations, scope creep, and the difficulties of aligning your projects with strategic goals. Discover how OnePlan can revolutionize your product development processes, helping your team to innovate faster, manage resources more effectively, and deliver exceptional results.
Enhanced Screen Flows UI/UX using SLDS with Tom KittPeter Caitens
Join us for an engaging session led by Flow Champion, Tom Kitt. This session will dive into a technique of enhancing the user interfaces and user experiences within Screen Flows using the Salesforce Lightning Design System (SLDS). This technique uses Native functionality, with No Apex Code, No Custom Components and No Managed Packages required.
8 Best Automated Android App Testing Tool and Framework in 2024.pdfkalichargn70th171
Regarding mobile operating systems, two major players dominate our thoughts: Android and iPhone. With Android leading the market, software development companies are focused on delivering apps compatible with this OS. Ensuring an app's functionality across various Android devices, OS versions, and hardware specifications is critical, making Android app testing essential.
Nashik's top web development company, Upturn India Technologies, crafts innovative digital solutions for your success. Partner with us and achieve your goals
14 th Edition of International conference on computer visionShulagnaSarkar2
About the event
14th Edition of International conference on computer vision
Computer conferences organized by ScienceFather group. ScienceFather takes the privilege to invite speakers participants students delegates and exhibitors from across the globe to its International Conference on computer conferences to be held in the Various Beautiful cites of the world. computer conferences are a discussion of common Inventions-related issues and additionally trade information share proof thoughts and insight into advanced developments in the science inventions service system. New technology may create many materials and devices with a vast range of applications such as in Science medicine electronics biomaterials energy production and consumer products.
Nomination are Open!! Don't Miss it
Visit: computer.scifat.com
Award Nomination: https://x-i.me/ishnom
Conference Submission: https://x-i.me/anicon
For Enquiry: Computer@scifat.com
What to do when you have a perfect model for your software but you are constrained by an imperfect business model?
This talk explores the challenges of bringing modelling rigour to the business and strategy levels, and talking to your non-technical counterparts in the process.
Mobile App Development Company In Noida | Drona InfotechDrona Infotech
React.js, a JavaScript library developed by Facebook, has gained immense popularity for building user interfaces, especially for single-page applications. Over the years, React has evolved and expanded its capabilities, becoming a preferred choice for mobile app development. This article will explore why React.js is an excellent choice for the Best Mobile App development company in Noida.
Visit Us For Information: https://www.linkedin.com/pulse/what-makes-reactjs-stand-out-mobile-app-development-rajesh-rai-pihvf/
The Comprehensive Guide to Validating Audio-Visual Performances.pdfkalichargn70th171
Ensuring the optimal performance of your audio-visual (AV) equipment is crucial for delivering exceptional experiences. AV performance validation is a critical process that verifies the quality and functionality of your AV setup. Whether you're a content creator, a business conducting webinars, or a homeowner creating a home theater, validating your AV performance is essential.
Boost Your Savings with These Money Management AppsJhone kinadey
A money management app can transform your financial life by tracking expenses, creating budgets, and setting financial goals. These apps offer features like real-time expense tracking, bill reminders, and personalized insights to help you save and manage money effectively. With a user-friendly interface, they simplify financial planning, making it easier to stay on top of your finances and achieve long-term financial stability.
WMF 2024 - Unlocking the Future of Data Powering Next-Gen AI with Vector Data...Luigi Fugaro
Vector databases are transforming how we handle data, allowing us to search through text, images, and audio by converting them into vectors. Today, we'll dive into the basics of this exciting technology and discuss its potential to revolutionize our next-generation AI applications. We'll examine typical uses for these databases and the essential tools
developers need. Plus, we'll zoom in on the advanced capabilities of vector search and semantic caching in Java, showcasing these through a live demo with Redis libraries. Get ready to see how these powerful tools can change the game!
Superpower Your Apache Kafka Applications Development with Complementary Open...Paul Brebner
Kafka Summit talk (Bangalore, India, May 2, 2024, https://events.bizzabo.com/573863/agenda/session/1300469 )
Many Apache Kafka use cases take advantage of Kafka’s ability to integrate multiple heterogeneous systems for stream processing and real-time machine learning scenarios. But Kafka also exists in a rich ecosystem of related but complementary stream processing technologies and tools, particularly from the open-source community. In this talk, we’ll take you on a tour of a selection of complementary tools that can make Kafka even more powerful. We’ll focus on tools for stream processing and querying, streaming machine learning, stream visibility and observation, stream meta-data, stream visualisation, stream development including testing and the use of Generative AI and LLMs, and stream performance and scalability. By the end you will have a good idea of the types of Kafka “superhero” tools that exist, which are my favourites (and what superpowers they have), and how they combine to save your Kafka applications development universe from swamploads of data stagnation monsters!
3. Internal Improvements
• Re-investing in the driver
– Modernizing how we build and test the JDBC
driver essential for adding more value
• Prior model was “isn’t broken, don’t fix it”
– Though it wasn’t broken it was slow process to
build and test new versions of the driver
• Few metrics
– Pass rates and build time was all that was
available
3
4. Internal Improvements
• Focus areas
– Faster turnaround time (fail fast)
– More information (metrics)
– Better testing (coverage, ease of use)
– Portability (build on any machine with little setup)
4
5. Failing Fast
• Build + test for the JDBC driver took almost 2
hours before
– Ran on a cron job that ran once a day
• Could do some testing locally before checkin,
but most validation came with the overnight
testing
• Build and test needed an overhaul
5
6. Failing Fast
• Ported all tests into TestNG (Java unit test
framework)
• Setup so we can run tests locally or on a ‘build’
machine
• Switched from perl scripts (yes we used perl) to
Gradle for building the driver
• Build time
– 4.10.JC7 - 40 minutes
– 4.10.JC8 - 3 minutes
• Test time
– 4.10.JC7 – 45 minutes
– 4.10.JC8 – 10 minutes
6
7. More Information (Metrics)
• Metrics are useful guides to indicate problem
areas or trends in code quality
• Coupled with testing and user feedback
metrics can alert us to potentially dangerous
or high risk additions to the product early on.
7
8. Metics
• Warnings
– over the years Java and code practices introduced
a number of warnings into the code
– even benign ones clutter and obscure potentially
dangerous warnings
• Code coverage
– How well does our testing cover the product, is
the coverage in the right areas?
– Very important for refactoring code, adds
confidence we didn’t break anything
8
9. Metics
• Static code analysis
– Augments testing with scans of the source code
for patterns that indicate potential problems
– Can be a little noisy with false positives
• Code complexity
– Identifies complex code blocks (nested
if/while/switch blocks)
– Points out interdependencies between
components
– Complex code === buggy code
• Also good points for refactoring the code
9
10. The Value
• All these pieces come together to allow faster
product development
• Case study 4.10.JC8
– Added ~100 tests
– Added ~100 new API’s
– Reduced compilation warnings by 1200
– Increased test coverage
10
11. 4.10.JC8 Features
• JDBC 4.0 Compliance
– Almost a hundred new API’s implemented or
enhanced to provide 4.0 compliance
– Compliance doesn’t mean all JDBC methods
supported
• We will go through the some of the more
interesting/useful
11
12. 4.10.JC8 Features
• ResultSet
– isClosed() and getHoldability()
– update* methods now work with long values
– Before this was what you had
• resultSet.updateBlob(“blobcolumn”, inputStream, int length);
– Now you can also use
• resultSet.updateBlob(“blobcolumn”, inputStream, long length);
– Before 4.10.JC8 you couldn’t always send an input stream
that didn’t have a length specified, now you can
• resultSet.updateAsciiStream(“charcolumn”, new
FileInputStream(“/myfile.txt”));
– This was done for all resultset update API’s
12
14. JDBC 4.0 Compliance
• Connection.java
– Gets proper createBlob() createClob() API’s
• Statement objects get a minor update
boolean isClosed() throws SQLException;
void setPoolable(boolean poolable) throws SQLException;
boolean isPoolable() throws SQLException;
• Blob API gets filled out a bit
free();
getBinaryStream(long pos, long length);
• Clob API gets filled out a bit
free();
getCharacterStream(long pos, long length);
14
15. PreparedStatement
• Added ability to use long data type in set* API’s
– Before you could only set up to a 2gb object due to
the use of int, now you can try to shove up to
Informix’s max limit blob/clob data
• Fixed a few areas around if you pass us a Reader
or InputStream as we could incorrectly try to
figure out how long it was. We should correctly
pull in data from the stream now
• Implemented more set* API’s around clobs,
character streams
• CallableStatment gets the same treatment
15
17. IfxSmartBlob
• A prerequisite for a number of JDBC 4.0
compliance implementations, we needed to be
able to write streamed data to a smart large
object.
• Added 6 new method calls to IfxSmartBlob.java
– These are helper methods for your existing Blob/Clob
API’s
– They allow streaming of any length of data from a
stream object in Java into a blob/clob (up to what
Informix supports or the size of a long which is huge)
public long write(int lofd, InputStream is) throws SQLException
public long write(int lofd, InputStream is, long length) throws SQLException
public long writeWithConversion(int lofd, InputStream is) throws SQLException
public long writeWithConversion(int lofd, InputStream is, long length) throws SQLException
public long writeWithConversion(int lofd, Reader r) throws SQLException
public long writeWithConversion(int lofd, Reader, long length) throws SQLException
17
18. IfxSmartBlob
• Created a default 32k buffer (matching the
internal 32K buffer size we use for sending
chunks of data through the network
– Adjustable with setWriteStreamBufferSize(int)
• Any codeset conversion that used to be done
via a write to a temp file is not done purely in
memory
– Much faster and we avoid creating files on disk to
do this work
18
19. DatabaseMetaData
19
java.sql.DatabaseMetaData.sqlStateSQL = 2 New State for DatabaseMetaData.getSQLStateType()
RowIdLifetime getRowIdLifetime() throws SQLException;
ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException;
boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException;
boolean autoCommitFailureClosesAllResultSets() throws SQLException;
ResultSet getClientInfoProperties() throws SQLException;
ResultSet getFunctions(String catalog, String schemaPattern,String functionNamePattern) throws
SQLException;
ResultSet getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String
columnNamePattern) throws SQLException;
• Useful for middleware applications that work
with many drivers
– Example: Cognos
20. 4.10.JC8 Features
• JDBC Packaging
– Combined ifxjdbc.jar and ifxjdbcx.jar
– Removed the old ifxjdbcx.jar
• It was small, with extra overhead to build and test, and it’s features
complimented what was in ifxjdbc.jar already
– Removed SQLJ from the JDBC installer
• Not maintained, can still get it from older drivers or IBM JCC
• Simplifies and streamlines what we produce and what you see.
– Javadoc we produce no longer has the BSON API’s
• Javadocs and source for Bson available online already
• http://api.mongodb.com/java/2.2
• IfxDriver.connect() no longer requires a properties object
– Was annoying to have to code
Connection con = new IfxDriver(new Properties()).connect(….)
– Now can write
Connection con = new IfxDriver().connect(….)
20
21. JDBC and Maven
• Starting with 4.10.JC8W1
• JDBC drivers are published to maven central!!
• Prior work with Gradle builds makes this easier to
achieve.
• Most direct implementation of DevOps,
continuous delivery yet for Informix
• Versioning
– Maven artifacts prefer semantic versioning
– For JDBC we use 3 or 4 digits
• Latest JDBC driver 4.10.8.1
• Next JDBC driver likely is 4.10.9
21
22. JDBC and Maven
• Accessing the driver is easier than ever
• Bypasses hurdles with publishing through
prior mechanisms
http://mvnrepository.com/artifact/com.ibm.informi
x/jdbc/4.10.8.1
• Link takes you to Maven’s search page with
details about the driver and version
• You can directly download the jar from pages
like this
22
24. JDBC and Maven
• This allows you to easily and programmatically
grab the driver
• Using your own Gradle, Maven, SBT to pull in
latest versions of the driver
• Can even use ‘curl’ or wget to pull down the
file directly from the web
• Can stage drivers into your own internal
Maven repository
24