Is there a Java library for Netflow? I need to be able to objectify flows for analysis. (I really need to support sflow, too, but one hurdle at a time.) I found a project called "jflow" that has classes for Netflow v5 and v6, but I need to support 7 and 9 as well.
All of my googling has brought me nothing. Does anyone know of a library? Has anyone written their own?
Yes, there is Java NetFlow Collect-Analyzer as well. It supports v7 and v9 as well as previous versions.
Another java library called Styx is another Netflow Collector and Analyzer.
There is a Scala library, which presumably means it could be invoked from Java. But that's not specifically documented, nor have I attempted to.
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I just inherited project that consists of a Java applet and some server communications, and with it found out that this technology is no longer supported by oracle.
My first thought was to wrap it in a JNLP and javawebstart but since oracle also marked this as deprecated in jdk9 i cannot use it as i need a long term support solution.
I want to try avoiding a complete re-write of the applet.
Does anybody have any ideas on this? Are there other alternatives on the market?
Thank you in advance.
You might want to check out https://github.com/update4j/update4j which natively supports Java 9.
Also allows distibuting files base on operating system. And you can sign files to prevent Man In The Middle attacks. And much more.
I need help in KIE API. Need to know that what it is and is there any tutorial available to use Drools KIE. Is kie part of drools-6.x ? And if it is part of drools-6.x then what will be the effect on applications using Drool-5.5 running JBPM5.4, and guvnor 5.5 ?
Regards,
Zahid Ahmed
Drools6 and jBPM6 are introducing a new public API called kie-api. It is very similar to the Drools5 and jBPM5 API in a lot of areas, but some areas were added or refactored as well. The API itself should have full Javadocs, and more documentation is currently under development as well.
For people using the old knowledge-api from Drools5 and jBPM5, this is still backwards compatible, so you should be able to use either
Is it possible to use OLE Automation in Java? If not, why is it not possible in Java?
I'm looking to automate the exporting of excel spreadsheets in different format (ie, .csv etc...)
Thanks for the answers in advance :)
Recently (March 2013), an independent contributor added support for generic COM Automation to JNA, which is the last man standing in terms of native platform API integration from Java. JNA is still very actively maintained, unlike Jawin/JACOB/etc.
See here for an example of how it is used. The pre-cooked bindings to the Office APIs are very simple so far, but looking at the code, it seems very easy to use the COM Automation APIs (IDispatch, Variant, etc) to do late binding to almost any COM interface.
I would like to see, however, a more complete binding of the Office COM APIs, since they are by far the most often used COM API in the world. Maybe there could also be an "MSExcel2007.java", "MSExcel2010.java", etc. to cover the different API versions. So it's very much a work in progress, but JNA is now as generally useful for COM Automation as JACOB/Jawin, with the bonus that it's extremely actively maintained (as of April 2013).
You can use JACOB. But there will be some pain involved as it's not documented very well and the performance is not the best. It can also be hard to get it running correctly for you environment depending on which version of Windows you are targetting. I would definitely not use it if you are building a scalable web application. Another option would be Apache POI which has really come a long way from its early roots and is used in alot of production ready tools like JBoss Drools. If you decide to go with JACOB then I recommend you read this SO thread:
Is there a good reference for using OLE Automation (from Java)?
There is a library called JACOB that allows precisely what you're looking for. What do you mean by "from the Java API?" You mean from from the official J2SE packages? I'm not sure how to answer that other than to say that J2SE doesn't include libraries for every conceivable need under the sun, especially those that only work on a single operating system. That's why third party packages exist.
Commercial, but they seem to have a free Open-Source and Academic license...
JExcel
JExcel Developer Documents
I have no affiliation.
I'm looking for Java bindings for XLib.
Specially, I need to be able to reparent an X windows application from within Java.
Ideally I would like to do this by making the X windows calls directly from java.
I don't know anything about XLib... but recently I ran across JNA and it seems that it can talk with system APIs so give it a look if you wish:
http://java-native-access.github.io/jna/4.4.0/javadoc/
Good Luck!
I've created xcb (successor of xlib) bindings for Java through SWiG. You can find the code here:
https://github.com/Zubnix/xcb4j
It's a rather large but straightforward implementation and should work once you have all the required xcb module headers installed.
I'm wondering if a Java library can be called from a VB.net application.
(A Google search turns up lots of shady answers, but nothing definitive)
No, you can't. Unless you are willing to use some "J#" libraries (which is not nearly the same as Java) or IKVM which is a Java implementation that runs on top of .NET, but as their documentation says:
IKVM.OpenJDK.ClassLibrary.dll: compiled version of the Java class libraries derived from the OpenJDK class library with some parts filled in with code from GNU Classpath and IcedTea, plus some additional IKVM.NET specific code.
So it's not the real deal.
I am author of jni4net, open source intraprocess bridge between JVM and CLR. It's build on top of JNI and PInvoke. No C/C++ code needed. I hope it will help you.
You can call Java from .NET if you wrap it in some form to make it accessable and the easiest way is typically to use a Runtime bridge like
http://www.jnbridge.com/
Other way is to wrap your API with java webservices.
check this also http://www.devx.com/interop/Article/19945
Nothing out of the box.
Most java/.net interop that I know uses web services.
If you can create COM components with Java, you can use tlbimp to create an interop assembly for using in VB.Net.
If can create standard DLLs that can be used from C++ with Java, you can write P/Invoke declarations and call them from VB.Net.
If you can create a web service with Java, you can generate proxy class from the WSDL and call it from VB.Net.
In any case, chances are the Java component will live in a separate process. I doubt you can load both the Java VM and the CLR in the same process.
If you have the source code and compile it using the J# compiler, then the answer is yes. If you want to call any pre-Java 2 (aka 1.2) libraries, then these are included pretty much verbatim with J#. More recent stuff is going to be tricky though (i.e., it's not there).
An example where this is used commercially are the yFiles graph layout algorithms from yWorks. These were originally just a Java library, but for the past few years they've been offering a .NET version, which is just the Java version compiled with Visual J#.
It's not without problems, and there are some limitations that you can't get around, but it can be done. So... unfortunately this answer looks pretty shady as well.
You could use JNI to instantiate a virtual machine and then use Java Classes. It will be some fun, though, because you would need to use C++ as a bridge between VB.Net and Java.
This article in java world has a quick tutorial on how to use Java from C++ and viceversa.
http://www.javaworld.com/javaworld/javatips/jw-javatip17.html
If you have the source, Visual Studio will let you convert Java code into c#.