Posts tagged netbeans
JavaOne 2012: Strategy and Technical Keynote
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While the double entendre of ‘SUNday’ no longer exists, this first day is still an important day. To set the stage, manage expectations, build on the atmosphere and layout the roadmap (starting that sometimes not even subtle massaging of the minds). The keynote sessions are the key events that define scope and themes for the conference.
Java is very much on the move again. After the virtual stand still just before and for a while after Oracle took over (from) Sun, last year saw a dramatic increase in the Java movement. This year that thread continues. Not with many spectacular announcement, but with a solid pursuit of earlier roadmaps and an apparently good collaboration between vendors in the Java space. The one big elephant in the room – that is actually not in the room at JavaOne – is Google. Otherwise for example, Oracle staff happily shared the stage for this keynote session with IBM.
This year’s overall slogan for JavaOne is: Make the future Java.
It is very much an invitation from Oracle to help bring the Java platform forward. In many ways: ideas, feedback, testing, propagating, creating code, joining JSR committees etc. Oracle and other vendors More >
Stand-alone Java Client for jWebSocket Server – communicating from Java Client to Web Clients and vice versa over WebSockets
0In a previous article, I have discussed the open source jWebSocket Server and a simple installation and configuration (http://technology.amis.nl/blog/14940/first-steps-with-jwebsocket-open-source-java-framework-for-websockets-installation-and-running-samples). Subsequently, I have shown the implementation of a web client for a synchronized Slideshow application, where WebSocket communication is used to perform Client 2 Client push (http://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server). In a third article I have explained how jWebSocket server can be integrated with a Java application that can start the server and interact with it (http://technology.amis.nl/blog/14973/implementing-a-java-server-side-component-for-jwebsocket-server-for-websocket-interaction-with-web-clients). Finally in this article I demonstrate how a stand alone Java Client can connect to a ‘remote’ jWebSocket server and open WebSocket interactions with it.
The functionality realized in this article is a simple Java application that listens to slide selection events as pushed from the clients More >
Implementing a Java Server Side component for jWebSocket Server for WebSocket interaction with Web Clients
4In a previous post – http://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server – I discussed the implementation of the synchronized slideshow application using Web (HTML/JavaScript) clients and jWebSocket as websocket server. In an earlier article, I described the same for the Kaazing WebSocket server – http://technology.amis.nl/blog/14777/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-kaazing-websocket-gateway – and both stories are (fortunately) fairly similar. In the Kaazing article I also described a Java based Server Side ‘client’ or ‘WebSocket interaction partner’. In the jWebSocket article, that part was missing and in this article I will rectify that.
This article will describe how a Java application can integrate with jWebSocket server – in fact: start the server from within the Java code -and subsequently register listeners that intercept WebSocket communication from other interaction partners such as Web clients. The Java application can also send messages to specific clients or broadcast to all clients. This article More >
Push based synchronized Slideshow demo application implemented using CometD and jQuery running on Tomcat
2In a string of recent articles, I have discussed downloading, installing and running demos for a number of different tools, frameworks and libraries that support push-style (web) applications in one way or another. I have looked into ‘classic’ comet with Grizzly, Atmosphere and CometD as well as ADF Active Data Service and WebLogic Pub/Sub (Bayeux) Channels. I have also looked to WebSockets with jWebSocket, again Atmosphere and CometD and also with Kaazing. I am now working on a series of articles in which I use each of these frameworks and push infrastructures to implement the same simple push-style application – to see how that goes and to compare the various implementations. The functionality I will be implementing is simple:
- through the web client (HTML 5/javaScript), a user can select an image from a list of ’slides’
- the selection of the image is communicated to the server (background WebSocket based or alternatively regular AJAX)Comet (Bayeux)/Long Poll style)
- the server informs all connected clients about the selected image through a pushed message (background WebSocket based or alternatively Comet (Bayeux)/Long Poll style); these clients all synchronize that slide More >
NetBeans 7.1 – JavaFX 2.0 support, refactoring enhancements and great Maven 3 integration
3NetBeans 7.1 has just been released. It is interesting how NetBeans continues to evolve – after many doubts were raised with regard to its future after the Oracle-Sun acquisition. Oracle maintains two IDEs – each with its own objectives. JDeveloper to support Fusion Middleware development, NetBeans to propel the Java platform and its associates (Groovy/Grails, Scala) with even more focus on standards and open source. NetBeans also support PHP and C++ code development – though I have no personal experience worth mentioning in these areas.
NetBeans 7.1 is not a major overhaul – it is a continuation of the NetBeans IDE. However, it does add one major new area of functionality: JavaFX 2.0 support in addition to a number of valuable smaller enhancements. This article briefly touches upon a number of these enhancements – the one that most appealed to me. Download NetBeans 7.1 from http://netbeans.org/downloads/index.html.
An interesting webcast (10 minutes) about the 7.1 release can be found here: http://netbeans.org/kb/docs/ide/overview-screencast.html.
Installing Tomcat 7 and Configuring as Server in NetBeans
2Tomcat 7 is a Servlet Container – a fairly light weight container, very convenient for development and testing. While not a full application server, Tomcat implements the functionality described in the Java Enterprise Edition Web profile specifications. Most notably, it supports version 3.0 of the Servlet API (application programming interface) and version 2.2 of JavaServer Pages, both part of the recently ratified JEE 6.
Installing Tomcat 7 is dead-easy and configuring Tomcat as Server in NetBeans to allow direct (re)deployment of web applications from within NetBeans is just as easy. Still, a brief blog article explaining the steps – for even easier lives for Java Web developers. And as testimonial to the ease of use the development teams behind Tomcat and NetBeans provide to the world of Java developers.
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