I am currently having a discussion with Thomas Diesler on the JBoss Forum about the usage of Xdoclet for ws4ee (and especially in conjungtion with JBoss).
Thomas argues that there is no big gain in using Xdoclet for webservices, as it lacks support for wsdl-generation. He is of course right in the latter and I see the point that some work needs to be done here. Of course I am biased here as comitter on Xdoclet.
Thomas proposes wscompile from the sun JWSDP-package. But this also doesn't provide everything you need and you also have to write files on your own.
So the solution lies in the use of both tools: have xdoclet generate the service interface, ejb-jar.xml entries and webservices.xml and the jaxrpc-mapping, let wscompile provide the wsdl.
I outlined this at the JBossWS and Xdoclet wiki page.
Saturday, November 13, 2004
Friday, November 12, 2004
Hewlett-Packard takes a new approach to software | CNET News.com
Hewlett-Packard takes a new approach to software | CNET News.com
This is interesting. As HP operates globally, they will take a good piece of the JASP cake. How will those service partners react?
For JBoss and open-source itself this is probably a good move, as many company including the classical IBM-customers (e.g. banks) will take JBoss and open-source more seriously and perhaps even consider switching from their "nobody got ever fired for buying IBM attitude".
This is interesting. As HP operates globally, they will take a good piece of the JASP cake. How will those service partners react?
For JBoss and open-source itself this is probably a good move, as many company including the classical IBM-customers (e.g. banks) will take JBoss and open-source more seriously and perhaps even consider switching from their "nobody got ever fired for buying IBM attitude".
German JBoss book announced
dpunkt.verlag listes a new JBoss book in their preview section. This is a German book and talks about JBoss 4.0. Target audience are admistrators and programmers that want to start with JBoss, but already have some basic J2EE and Java knowledge.
Why I mention this? Have a look at the author :-)
Why I mention this? Have a look at the author :-)
Sunday, November 07, 2004
Are FOP and Batik dead?
When looking at the download directory for fop and batik
(Index of /dist/xml/), it looks like the two projects are pretty dead. There was a batik release this year in february, but only because there was a security issue with the squiggle browser (nice tool btw!). For fop, which is at version 0.20.5 the situation is even worse: last release was in july 2003!.
Update:
After reading this blog article, things seem clearer. There is no entry on this on the ASF pages though.
(Index of /dist/xml/), it looks like the two projects are pretty dead. There was a batik release this year in february, but only because there was a security issue with the squiggle browser (nice tool btw!). For fop, which is at version 0.20.5 the situation is even worse: last release was in july 2003!.
Update:
After reading this blog article, things seem clearer. There is no entry on this on the ASF pages though.
SVG: drawing DTDs
In the past, I wrote a little note about XML.com's article on svg tree drawing.
Currently, the way most people seem to go if they want to add a structural drawing of their DTDs is to use XmlSpy, open the DTD, convert to XML Schema and let XmlSpy draw the diagram. XmlSpy can then export the drawing as png, or one can do a screenshot and save it in another pixelized format. The result is really good looking:
It seems that there are also other tools on the market like Tibco TurboXML that can produce drawings of DTDs (and the Tibco one seems to be able to export them even as SVG, as JBoss had some html-versions of their DTD in SVG done with some Tibco tool).
While this is good for graphics on the web or just visualisation of complex structures, this is of no real use when you have to scale the graphics to include it in some printed work. So I started to write my own converter. With the help of the batik toolkit, this is working quite well. The current state looks like this:
(The respective svg looks like this).
Obviously not yet as good as the XmlSpy version, but I can just run the conversion on command line and do not need a XmlSpy-license :-)
I will update this page when there is more available.
Currently, the way most people seem to go if they want to add a structural drawing of their DTDs is to use XmlSpy, open the DTD, convert to XML Schema and let XmlSpy draw the diagram. XmlSpy can then export the drawing as png, or one can do a screenshot and save it in another pixelized format. The result is really good looking:
It seems that there are also other tools on the market like Tibco TurboXML that can produce drawings of DTDs (and the Tibco one seems to be able to export them even as SVG, as JBoss had some html-versions of their DTD in SVG done with some Tibco tool).
While this is good for graphics on the web or just visualisation of complex structures, this is of no real use when you have to scale the graphics to include it in some printed work. So I started to write my own converter. With the help of the batik toolkit, this is working quite well. The current state looks like this:
(The respective svg looks like this).
Obviously not yet as good as the XmlSpy version, but I can just run the conversion on command line and do not need a XmlSpy-license :-)
I will update this page when there is more available.
Wednesday, October 27, 2004
Orlando's first birthday
My little son Orlando had his first birthday today. We had a party with his grand parents and a friend of him was walking by with his mom.
Orlando very much liked the fact that everyone took care of him and all that. He did not sleep during the afternoon - normally he sleeps for one to two hours.
It is so incredible that a year has passed now. At the start he was a tiny little something that slept, cried and filled the diapers. Now he is walking on his own, eating Pretzel with us, is starting to talk and will start going to the kindergarten next week.
Orlando very much liked the fact that everyone took care of him and all that. He did not sleep during the afternoon - normally he sleeps for one to two hours.
It is so incredible that a year has passed now. At the start he was a tiny little something that slept, cried and filled the diapers. Now he is walking on his own, eating Pretzel with us, is starting to talk and will start going to the kindergarten next week.
Monday, October 25, 2004
SourceForge.net support
Ok, first: you get what you pay for ...
But an entity that claims to be the best and biggest platform for Open Source development should give better support.
Slowly from the beginning. Andrew uploaded the files to the download farm and set the release to 'hidden'. Then after uploading everything he set the release to 'active'.
Now people get the files in the download list, but when you select one, on the mirror page you get a notice that the mirror doesn't have the file and that sf.net will fix this.
Andrew opened a case with sf support, which was more or less 'just closed'. I also opened a case. And after not fully reading my initial submission, the support guy closed it after exchange of some questions and answers with "if it was hidden, then it will resolve itself in ten days".
What the heck? I see nowhere written, that hidden releases only reappear ten days after setting them to active. No notion why this is the case to what to do to increase re-appearance speed. Users are waiting for the files.
I was thinking about buying a sf.net subscription. But if this only gives me a bad answer faster than when I have no subscription, then no thanks.
But an entity that claims to be the best and biggest platform for Open Source development should give better support.
Slowly from the beginning. Andrew uploaded the files to the download farm and set the release to 'hidden'. Then after uploading everything he set the release to 'active'.
Now people get the files in the download list, but when you select one, on the mirror page you get a notice that the mirror doesn't have the file and that sf.net will fix this.
Andrew opened a case with sf support, which was more or less 'just closed'. I also opened a case. And after not fully reading my initial submission, the support guy closed it after exchange of some questions and answers with "if it was hidden, then it will resolve itself in ten days".
What the heck? I see nowhere written, that hidden releases only reappear ten days after setting them to active. No notion why this is the case to what to do to increase re-appearance speed. Users are waiting for the files.
I was thinking about buying a sf.net subscription. But if this only gives me a bad answer faster than when I have no subscription, then no thanks.
Sunday, October 24, 2004
Xdoclet: Release 1.2.2 is out
Xdoclet 1.2.2 has been released yesterday. This release is a big improvement with more than hundered closed issues and support for J2EE 1.4 Webservices, JDO 2, Java Server Faces and EJB 2.1.
JDK 5.0 support is still missing, but this will be supported in the next release.
The release entry on Freshmeat will tell you the details. If you use and like Xdoclet, then please also vote for it.
One of the interesting questions will be how much Xdoclet will be used in future now that annotations are part of the languge. Should Xdoclet try to process those as well? As an example: Thomas Diesler of JBoss is currently rewriting the ws4ee part, which is currently based on Axis. In a forum entry, he wrote recently, that JBossWS won't support Xdoclet, but support JSR-181 Webservices Metadata. Bill Burke already has some 'annotations for J2SE 1.4' in his AOP framework, so this will probably also be used in JBossWS. Ok, this is JBossWS only and other manufacturers won't provide such a thing. On the other hand, a translation from JDK 5 annotations to JDK 1.4 + Xdoclet tags might be useful.
JDK 5.0 support is still missing, but this will be supported in the next release.
The release entry on Freshmeat will tell you the details. If you use and like Xdoclet, then please also vote for it.
One of the interesting questions will be how much Xdoclet will be used in future now that annotations are part of the languge. Should Xdoclet try to process those as well? As an example: Thomas Diesler of JBoss is currently rewriting the ws4ee part, which is currently based on Axis. In a forum entry, he wrote recently, that JBossWS won't support Xdoclet, but support JSR-181 Webservices Metadata. Bill Burke already has some 'annotations for J2SE 1.4' in his AOP framework, so this will probably also be used in JBossWS. Ok, this is JBossWS only and other manufacturers won't provide such a thing. On the other hand, a translation from JDK 5 annotations to JDK 1.4 + Xdoclet tags might be useful.
Saturday, October 23, 2004
Got my copy of "hibernate in action" today.
I got my copy of Hibernate in action today and made it through the foreword so far.
Amongst the reviewers of the book are a few Xdoclet developers: Ara Abrahamian, Matt Raible and Nick Heudecker. When I looked at Amazon sales ranking for the book I also saw that Eric Pugh, who also works on Xdoclet seems to write a book on Hibernate as well. It's a small world.
Now I am uncertain, as I was using Hibernate in the past: should I read the book chapter by chapter or just skip around and perhaps miss important things.
Well, I am glad that my copy is here im my hands now.
Amongst the reviewers of the book are a few Xdoclet developers: Ara Abrahamian, Matt Raible and Nick Heudecker. When I looked at Amazon sales ranking for the book I also saw that Eric Pugh, who also works on Xdoclet seems to write a book on Hibernate as well. It's a small world.
Now I am uncertain, as I was using Hibernate in the past: should I read the book chapter by chapter or just skip around and perhaps miss important things.
Well, I am glad that my copy is here im my hands now.
Tuesday, October 19, 2004
AOP: JBossAOP vs. JBoss-Interceptors
I am currently playing with JBossAOP in JBoss AS 4.0. Cool thing!
You basically write a POJO with a method that follows a signature pattern, do some xml mumbos-jumbo and throw everything in the app-server, which deploys it. That's all.
There is one drawback though: currently it is not possible to intercept calls to methods on the EJB home interface. That's still the domain of the old JBoss interceptors that exist since JBoss 2.x.
But else, JBossAOP is really fun.
You basically write a POJO with a method that follows a signature pattern, do some xml mumbos-jumbo and throw everything in the app-server, which deploys it. That's all.
There is one drawback though: currently it is not possible to intercept calls to methods on the EJB home interface. That's still the domain of the old JBoss interceptors that exist since JBoss 2.x.
But else, JBossAOP is really fun.
Sunday, October 17, 2004
Orlando is walking on his own
My little son Orlando is now at the age of close to a year walking on his own without any help from us and also without holding a chair or other helpers.
I am very proud :-)
I am very proud :-)
Wednesday, October 13, 2004
Eclipse plugin horror
I am currently working with webservices. Bruce Scharlau has a nice picture of a graph how the various elements in a .wsdl file are linked together. This picture is generated by a plugin contributed by IBM. The eclipse page also has a download link to it.
Now I am downloading this 55MB zip file, then some EMF stuff and and and.. Sometimes data is flowing in at incredible speeds ro 3kBytes/sec (over DSL!). Then some parts of the download are missing and the update has to start again .. In the end, this sort of action takes ages *sigh*
I really like Eclipse, but this is nightmarish.
And the worst: the feature to generate the diagram is not even available due to some error or incompatibility or missing whatever.
Now I am downloading this 55MB zip file, then some EMF stuff and and and.. Sometimes data is flowing in at incredible speeds ro 3kBytes/sec (over DSL!). Then some parts of the download are missing and the update has to start again .. In the end, this sort of action takes ages *sigh*
I really like Eclipse, but this is nightmarish.
And the worst: the feature to generate the diagram is not even available due to some error or incompatibility or missing whatever.
Monday, October 04, 2004
BlogThis for FireFox PR available
Under Mozilla Update :: Extensions -- More Info: BlogThis, the BlogThis context menu extension is finally available again for Firefox.
This tool works like the BlogThis! button in the Google Toolbar for IE.
This tool works like the BlogThis! button in the Google Toolbar for IE.
Tuesday, September 28, 2004
A good move from Sun
Linda de Michiel and Craig Russel, spec leads for JSR-220 (EJB 3) and JSR-243 (JDO 2.0) have written an open letter to the Java community that they want to unite Java persistence under the umbrella of JSR-220.
The critics will now mumble that JBoss will get (more) influence on the whole Java persistence through their jsr members and through hibernate in special (Hani, I already hear you rotating in your bed).
I think this unification is a good thing, as persistence is critical to many applications and there is no point to have various competing standards that all fill a certain niche and where you can't really tell why you are using one standard and not the other.
Can you tell what is the difference between hibernate, jdo and entity beans? If so, do you know the differences between various jdo implementations? Do you know all the vendor specific details of EntityBeans configuration?
The critics will now mumble that JBoss will get (more) influence on the whole Java persistence through their jsr members and through hibernate in special (Hani, I already hear you rotating in your bed).
I think this unification is a good thing, as persistence is critical to many applications and there is no point to have various competing standards that all fill a certain niche and where you can't really tell why you are using one standard and not the other.
Can you tell what is the difference between hibernate, jdo and entity beans? If so, do you know the differences between various jdo implementations? Do you know all the vendor specific details of EntityBeans configuration?
Saturday, September 25, 2004
Ewww blogger...
For my previous post I tried to optimise the layout in a way that the tables are not miles away from each other, but no luck :-/
I have no clue what is going wrong, so I just have to accept it as is. Perhaps people are not supposed to blog tables or such...
I have no clue what is going wrong, so I just have to accept it as is. Perhaps people are not supposed to blog tables or such...
Some statistics
I have a little web site that had some 2000 visits this month so far. I use awstats to track usage.
Below is an excerpt from some statistics.
Interesting fact: 70% of all users use a screen size of 1024x768 or less!
Also interesting: most browsers have Java and/or PDF support.
Below is an excerpt from some statistics.
Interesting fact: 70% of all users use a screen size of 1024x768 or less!
Also interesting: most browsers have Java and/or PDF support.
| Operating Systems | Hits | Percent |
|---|---|---|
| Windows | 10955 | 87.8 % |
| Unknown | 562 | 4.5 % |
| Macintosh | 459 | 3.6 % |
| Linux | 398 | 3.1 % |
| Sun Solaris | 89 | 0.7 % |
| FreeBSD | 4 | 0 % |
| NetBSD | 1 | 0 % |
| Symbian OS | 1 | 0 % |
| Browsers | Grabber | Hits | Percent |
|---|---|---|---|
| MS Internet Explorer | No | 8482 | 68 % |
| FireFox | No | 2072 | 16.6 % |
| Mozilla | No | 713 | 5.7 % |
| Unknown | ? | 369 | 2.9 % |
| Netscape | No | 276 | 2.2 % |
| Opera | No | 182 | 1.4 % |
| Konqueror | No | 121 | 0.9 % |
| Safari | No | 76 | 0.6 % |
| Links | No | 72 | 0.5 % |
| WebCollage (PDA/Phone browser) | No | 51 | 0.4 % |
| Others | 55 | 0.4 % |
| Screen sizes | Percent |
|---|---|
| 1024x768 | 63.3 % |
| 1280x1024 | 14.6 % |
| 800x600 | 9.3 % |
| 1152x864 | 6 % |
| 1400x1050 | 2 % |
| Others | 4.6 % |
| Miscellaneous | |
|---|---|
| Browsers with Java support | 93.4 % |
| Browsers with Macromedia Director Support | 39.2 % |
| Browsers with Flash Support | 92.5 % |
| Browsers with Real audio playing support | 37.8 % |
| Browsers with Quicktime audio playing support | 39.5 % |
| Browsers with Windows Media audio playing support | 89 % |
| Browsers with PDF support | 84.9 % |
Tuesday, September 21, 2004
SVG: Tree drawing
Monday, September 20, 2004
JBoss 4.0 is out
After quite some development time, JBoss 4.0 has been released today.
Even as it was announced to be released rsn some days ago, I didn't believe it.
Now I bets will be accepted when the first patch release will follow :-)
Even as it was announced to be released rsn some days ago, I didn't believe it.
Now I bets will be accepted when the first patch release will follow :-)
Monday, September 06, 2004
My first time :-)
[echo] D:\devel\sim\server\build/webapp/classes
[javac] Compiling 2 source files to D:\devel\sim\server\build\webapp\classes
[javac] An exception has occurred in the compiler (1.4.2). Please file a bug
at the Java Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
[javac] java.lang.ArrayIndexOutOfBoundsException: 1886419334
[javac] at com.sun.tools.javac.v8.code.ClassReader.nextInt(ClassReader.java:335)
Wednesday, September 01, 2004
I am OS X
Just made the "What OS are you" test on http://bbspot.com/News/2003/01/os_quiz.php.
I am
Which OS are You?
Not bad .. I feared to be some Win*. Try it, it is worth a laugh.
I am
Which OS are You?
Not bad .. I feared to be some Win*. Try it, it is worth a laugh.
Subscribe to:
Posts (Atom)