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I'm looking for a free scalable chat solution, sort of the equivalent of SOLR but for chat. I have a LAMP application that I need to integrate the chat with. For search I'm using SOLR and since it has a REST interface integrating with it was easy and didn't require writing any Java.
Is there a similar ready made solution that's also high peformance for chat?
Obviously MySQL/PHP/AJAX based periodic polling scripts are out of the question.
Go with a good jabber implementation.
http://www.igniterealtime.org/projects/index.jsp
http://www.igniterealtime.org/projects/openfire/index.jsp
http://www.igniterealtime.org/projects/smack/index.jsp
http://jwebsocket.org/
They have a chat demo you can download and modify (it is licensed under LGPL).
I'm developing a facebook-like chat with Node.js, it's not so difficult and works great. I'm using "socket.io" and now I'm going to develop an android app too, with https://github.com/Gottox/socket.io-java-client
Do you need private chat? or only public? Igniterealtime as #krishnakumarp posted seems much more complex and complete.
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Currently we are working on an existing system that uses C# webserver interacting with OSGEO Mapguide and MS-SQL Server. Displays the map and layers in a JS client app using openlayers.
Mapguide is very slow and we'd like to run on Linux, so I am researching for how to do it using Java or Scala. I'd like to develop a GIS server using Java and client app using JS with openlayers (without mapguide). For now I don't mind wich DB to use (SQL or NoSQL).
Is there a 3rd-party that can help me? An example perhaps.
If you prefer java based GIS system, the GeoServer which is written in Java would be one of the best choice you can have. It supports various of DB and use OGC WMS as its output and it runs fast at least for me. This works with OL3 naturally and there are many examples from the large user community and detailed tutorials that you can find online. Good luck!
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I am attempting to get Java to communicate with a device that only supports Bluetooth 4.0
I've done some testing with BlueCove, but to the best of my knowledge, it does not support Bluetooth 4.0
Are there any libraries available to achieve this? I've searched high and low and came up with no straight forward solutions.
If there are none available, could someone recommend the best way I could make it work? In other questions similar to this one, some people have suggested doing a JNI wrapper for existing C/C++ libraries. If that is the best approach, what would be the best library to wrap?
I'd rather not have to resort to doing that, but if it's the only way I guess I will need to. I've been constrained to using Java and a device that only supports Bluetooth 4.0
EDIT: For anyone interested, my solution was to go with using Bluegiga's BGAPI. This limits me to only using their dongle (BLED112) BUT it is a workable solution. I went with this Java implementation of BGAPI. It has a dependency for an RXTX library, I decided to go with this one . Hope this helps someone.
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My requirement is to access moodle as a backend engine and front end will be mint in Java[jsf]
now I want to know that is there any interface available to access Moodle from Java , using WebServices or any APIs or anything.
Initially I tried using Sakai which is in Java, but the problem is there is no clear API written for it.
So let me know the option for using Moodle from JAVA.
Also if it is possible than what will be the feature available through the WebServices or API. ?
Or any other LMS that is in Java and provide API or WebService to make this working.
I reviewed many LMS (dokeos, docebo, ATutor) last year and to be frank all of them sucked. Moodle was the most stable, had more plugins and a huge community.
I came across Project Sakai, I havn't tried it, but sounds promising. Something very interesting from Google is cloudcourse (in python I guess, but looks awesome demo). But not a complete LMS (compared to moodle).
You forgot to add Chamilo they have a list of available web services (SOAP) that you can use to create courses, users, add users to courses, etc
https://www.olat.org/ and https://www.openolat.com seem a good alternative to moodle.
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I have a tomcat/mysql website that I would like to move over to Google app engine does anyone know of a good tutorial outlining this? Or can anyone make some suggestions on how to do this?
As long as you use standard servlet and JSPs you will be fine.
The limitations for Google App Engine are documented here : http://code.google.com/appengine/docs/java/jrewhitelist.html
Sessions are kind of expensive (read slow) so avoid state on the server as much as possible.
The backing store is also quite different than standard SQL if you use any db calls in your app.
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I'm really tired of using the Google Web Toolkit for accessing Google Maps in Java using Netbeans... Does anybody know of a good alternative providing a simple(r) API?
Any help would really be appreciated!
OpenStreetMap has a good API in combination with OpenLayers.
Good luck with that!
Driving instructions are included, but since OSM is user-generated, you cannot rely 100% on this information. See OSM-Wiki article "Routing"
If you want another API that has great routing and other mapping alternatives with a J2ME API you can take a look
[Shameless plug]
http://developer.decarta.com
[/shameless plug]
We also do mapping, geocoding, and other cool spatial functionality.
We have an android API, iOS API, mobile JS, and a desktop JS along with XML web services.