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What libraries are available to write a SOAP client in Java version 1.4.2?
Apache Axis runs on Java 1.4 and has fairly good support for specs like WS-Security.
The two major options are Apache Axis/Axis2 and the Sun Metro JAX-WS stack (included in J2EE 5 and J2SE 6).
However, Metro is Java 5 and newer only, as it uses annotations.
Neither Metro nor CXF will work with Java 1.4.x, they both require Java5. I think the only options are Axis/Axis2 and XFire, but even Axis2 1.5 is going to be Java 5 only and XFire is pretty much replaced by CXF. Java 1.4 is pretty much a dead end for WebServices stacks.
Most of the common ones were around then; you're likely to need to go to archived versions though, as that's several major revisions old now. Java 5 in particular added enough goodness that its features tended to be adopted.
I'm a fan of Apache CXF. Here's a tutorial on the different ways to develop a web service client:
http://cwiki.apache.org/CXF20DOC/how-do-i-develop-a-client.html
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I have a Java application. I can expose it using web services or REST (JAX-WS or JAX-RS).
Now I actually want to run it "in a cloud" and expose it as a service. I have read around that there are services e.g. Apigee, Rackspace, Google App Engine... The idea is that I don't want to worry about scale and performance. I want that handled by the host.
What are the options for Java?
Thanks,
David.
After a bit of homework, here's what I am gathering:
This is really about Java PaaS offerings (platform as a service).
In addition to what I previously mentioned,
Google App Engine
Rackspace
Apigee
it's worth adding:
Jelastic
CloudBees
There's also a guide - albeit old - from InfoQ that can be read here.
Depends on amount of money you can spend.
This cloud hosting seems interesting.
There's Heroku too, or even AWS.
Amazon AWS provides auto-scaling features that you can configure so you don't have to "worry about scale" day to day, though you do have to set it up in the first place (you will also have to monitor your bill in case you are scaling big-time ;) ). It works well and provides decent monitoring/visualization if you are happy to do the set up.
I can't say whatthe other systems you are investigating have to offer in terms of automatic scaling though.
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I've got a really simple question but I find nothing interesting on Google.
Is there a Java equivalent of SignalR (.NET) ?
SignalR is a .NET framework that implements Websockets with a fallback for old browsers.
Really thx to you.
It seems that Atmosphere can be this what you are looking for.
From github description:
The Atmosphere Framework contains client and server side components
for building Asynchronous Web Application.
I didn't tried it yet, but this says that it supports major JEE-Servers (JBoss, Tomcat, Glassfish, Jetty) and all major browsers and transports (WebSockets, SSE, Long-Polling etc).
UPDATE 6/4/2014:
There is another notable alternative for "Java equivalent of SignalR". As of version 4.0, Spring Framework comes with support for WebSockets and server-side support for the SockJS. It means that it supports also WebSocket-Fallback, used together with a browser side sockjs-client library.
As Spring Documentation says:
WebSocket is not supported in all browsers yet and may be precluded by restrictive network proxies. This is why Spring provides fallback options that emulate the WebSocket API as close as possible based on the SockJS protocol [...] On the browser side, applications can use the sockjs-client that emulates the W3C WebSocket API and communicates with the server to select the best transport option depending on the browser it’s running in.
Still I'm not aware if there is support for something like SignalR Hubs (which involves JavaScript-code generation)in the Java Framework as of today, but on the other side I think you can easily imitate a SignalR-like PersistentConnection with full fallback support for older browsers.
Furthermore, because of JSR 356 aka Java API for WebSocket, I think it is only a question of time when the so to say "mainstream" Java Web-frameworks will be shipped with out-of-the-box support for Websockets+Fallback, especially considering the fact that all main servlet conteiners (like Tomcat and Jetty) and JEE 7 Servers (Glassfish, Wildfly) have support for JSR 356 already.
There is a Play framework module SignalJ
Update: SignalJ looks dead, look Scala Web Sockets
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I am considering building a Java EE based set of services and licensing these services to my clients. While we will aim to make these services generic for any client, reality is that customizations and new services will be needed on a client specific basis.
Likely the stack will be a Java application deployed to the EC2 cloud, possibly leveraging a framework such as Spring.
What architecture would one prescribe to have a hosted application for my clients, but also enable them to build their own custom extensions. Does anyone have technical or business example of a company that has built a hosted SaaS service that is extensible on the platform side?
I haven't done this yet, but AFAIK you could use module systems such as OSGi also on the server side to write modular, extensible server side applications.
Atlassian does this. You basically pay to have even its own source code, as well as a Platform SDK, or even a Managed Instance (this one, however, seems not extensible)
Internally, most of them rely in an OSGi Container (I think its Felix), so it manages dependencies accordingly, as well as DI and Extension Points. Perhaps might be worth it to have a try
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I'd like to install a Java application as a Windows service. I did so successfully a couple of years ago using this Java Service wrapper. Unfortunately, it seems like this tool is not in development anymore and thus no Windows 7 and 64 bit versions are available. I need to install my Java application on Windows 7 and XP machines.
Does anyone know a good alternative?
Edit: I need this for commercial use; the suggested Java Service Wrapper from Tanuki is too expensive.
Some time ago I used the tanuki project and we were very happy with it. I believe is one of the most popular ones.
There is also YAJSW that is based on tanuki (as I understand ) with a LGPL licence
I'm now using WinRun4J - a really nice, lean tool that is easy to configure and handle and usable in commercial applications. Many thanks to assylias, whose comment pointed my in the right direction.
I have used Tanuki's Java Service Wrapper with great success; it's easy to use.
There are community packages (free) and professional packages (license).
AlwaysUp is a commercial alternative that supports Windows 7 and XP. This step-by-step tutorial shows you how to setup a java application as a service.
I have recently used Java Service Wrapper from Tanukisoftware and it works perfectly on windows 7. Also the tool is pretty handy as it provides pretty extensive integration mechanism from simple jar execution to shutdown hook functionality as well.
For normal use, you can use their Community License which falls under GPL v2.0, however keep in mind if your intended use is on server, you might have to double check licensing options.
Also windows resource kit includes a tool called servany.exe which i successfully used on Windows Xp to start a jar file as a service by lanuching java.exe with arguments to my jar file, however since windows 7 this somehow does not work.
You might want to do a little research since i have read some forums about people still affirming that it works.
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Are there any decent BitTorrent libraries for Java? I need to program a simple torrent client, but it would be great if I didn't have to write everything from scratch.
Turn's TTorrent is a pure Java bit torrent library.
Snark by Three Rings is a very lightweight bitorrent library that will give you basic torrent features.
Was originally written by Mark Wielaard. A github source can be found here https://github.com/akerigan/born-again-snark
I have created a Bitlet Fork on Github.
It's LGPLed, and it's running faster than ttorent.
Azureus (now named Vuze) gives you a plugin API. Using this API you can plug your code into Azureus. Start it inside your program, and listen/respond to its events.
Azureus is written in Java - is most likely not "simple" but quite likely "decent" :)
Adding to answer from jjnguy : The code seems to be at http://code.google.com/p/snark/ and not in the repo pointed to in the link you've provided.
I've not used it, but a Google search showed up YAIRCC. Describes itself as "A lightweight Java Bittorrent library and client".
Transdroid and Transdroid-desktop are libraries for adroid, that can also be used in java to control existing torrent clients.