1. clone jme3-thirdparty from git, mvn install … done
2. clone jme3-buildhelper, copy pom.xml into jmonkey-engine … done
3. start hacking your jmonkey game with maven build support

https://github.com/ahoehma/jme3-maven-helper

I noticed that some tests broken with the new version. These tests doing something like this: “create a bean, do changes X times, check available revisions and changed properties from rev A to B”.  In the new version I missed some changed properties.  I’m so happy that we have some tests for that aspect because without them I guess I had found these effects.

I found  this entries in the Envers user forum:

- Envers not auditing properties in super class
- Envers modification in Hibernate 3.6.8 is causing problems

Then I use the “try and fail” principle to find the latest working version: ONLY 3.6.0.Final works

So there was an API change from 3.6.0.Final to 3.6.1.Final. Since 3.6.1.Final Envers doesn’t inspect parent class (es) per default to find out the audit able properties. But it’s easy to fix that:

- put a @Audited to all the base classes
- or use org.hibernate.envers.Audited.auditParents() (if you can’t change the base class)

The Vaadin wiki shows the basics … but I want widgetset update only if its necessary … so I moved the gwt/vaadin plugins in a profile and add a activation per file for this profile:

<profile>
   <!--
     Updates Vaadin widgetset definitions based on project dependencies
     Remove widgetset directory to trigger recompile:
       rm -Rf src/main/webapp/VAADIN/widgetsets/
   -->
   <id>update-widgetset</id>
   <activation>
     <file>
       ${basedir}/src/main/webapp/VAADIN/widgetsets/
     </file>
   </activation>
   <build>
     <plugins>
       <plugin>
         <groupId>com.vaadin</groupId>
         <artifactId>vaadin-maven-plugin</artifactId>
         <version>1.0.2</version>
         <configuration>
           <!-- if you don't specify any modules, the plugin will find them -->
         </configuration>
         <executions>
           <execution>
             <phase>generate-resources</phase>
             <goals>
               <goal>update-widgetset</goal>
             </goals>
           </execution>
         </executions>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
         <version>2.3.0-1</version>
         <configuration>
           <!-- if you don't specify any modules, the plugin will find them -->
           ${basedir}/src/main/webapp/VAADIN/widgetsets/
           -Xmx512M -Xss1024k
           ${project.build.directory}/gwt-tmp/
           <soyc>false</soyc>
           <force>true</force>
         </configuration>
         <executions>
           <execution>
             <phase>generate-resources</phase>
             <goals>
               <goal>resources</goal>
               <goal>compile</goal>
             </goals>
           </execution>
         </executions>
       </plugin>
     </plugins>
   </build>
 </profile>

import static com.google.common.collect.ImmutableList.of;

import java.util.Iterator;
import java.util.LinkedList;

import com.google.common.collect.AbstractIterator;
import com.google.common.collect.Lists;

/**
 * This Iterator could be used for hierarchical data structure (e.g. Trees).
 *
 * @author Andreas Höhmann
 * @param <T>
 */
public abstract class AbstractHierarchialIterator<T> extends AbstractIterator<T> {

   private final LinkedList<Iterable<T>> stack = Lists.newLinkedList();
   private Iterator<T> current;

   public AbstractHierarchialIterator(final T start) {
      this(of(start));
   }

   private AbstractHierarchialIterator(final Iterable<T> start) {
      current = start.iterator();
   }

   /**
    * An concrete hierarchical iterator has to implement a method to 
    * visit the children of an element.
    *
    * @param currentElement
    * @return never <code>null</code>
    */
   protected abstract Iterable<T> childrenOf(T currentElement);

   @Override
   protected T computeNext() {
      while (true) {
         if (current.hasNext()) {
            final T next = current.next();
            stack.add(childrenOf(next));
            return next;
         }
         if (stack.isEmpty()) {
            break;
         }
         current = stack.removeFirst().iterator();
      }
      return endOfData();
   }
}

Examples

AbstractHierarchialIterator<Foobar> i = 
    new AbstractHierarchialIterator<Foobar>(foobarStart) {

    @Override
    protected Iterable<Foobar> childrenOf(final Foobar currentElement) {
        // <--- here you have to implement something
        return currentElement.getFoobarChildren(); 
    }
};

// example 1 - show all foobars
while (i.hasNext()) {
    System.out.println(i.next());
}

// example 2 - search the first "foo"
Foobar foo = com.google.common.collect.Iterators.find(i, new Predicate<Foobar>() {

      @Override
      public boolean apply(final Foobar input) {
        return "foo".equals(input.getName());
      }
    }, null);

# makesvnvideo.sh
svn log $1 --xml --verbose --quiet > svn-log.xml && \
python $GOURCE_HOME/svn-gource.py --filter-dirs svn-log.xml > svn-gource-log.xml && \
$GOURCE_HOME/gource.exe --log-format custom svn-gource-log.xml -c 2 -s 0.1 --max-files 500 --hide dirnames,filenames,files,mouse,progress --stop-at-end -i 60 --multi-sampling --user-image-dir ~/.avatars --camera-mode overview --font-size 18 --font-colour FFFFFF  --background 000000 --date-format "%d.%m.%Y" -r 25 -640x480 --highlight-users --user-friction .2 -o svn.ppm && \
$FFMPEG_HOME/bin/ffmpeg.exe -y -b 10000K -r 25 -f image2pipe -vcodec ppm -i svn.ppm -vcodec libx264 -threads 4 -bf 0 svn.x264.mp4

1. download/install gource, put a $GOURCE_HOME in your .bashrc
2. download/install svn-gource.py into $GOURCE_HOME
3. download/install ffmepg, put a $FFMPEG in your .bashrc
4. put avatar images in your ~/.avatar directory
5. put makesvnvideo.sh in your PATH

makesvnvideo https://bloxel.googlecode.com/svn/trunk/

The com.vaadin.ui.Label component have a caption and a icon, i.e.  ”[I] Caption”.

But I need a label like this “Caption [I]“. This could be done with the following CSS:

.v-caption-reverseLabel {
float: left;
}
.v-caption-reverseLabel .v-icon {
float: right;
margin: 0px 2px 0px 2px;
}
.v-caption-reverseLabel .v-captiontext {
float: right;
}

final Label label = new Label();
label.setStyleName("reverseLabel");
label.setCaption("Foobar");
label.setIcon(new ThemeResource("img/info.gif"));

I implemented a tessellation algorithm for volume -> mesh creation … here are some pictures from the bloxel labs …

After many projects with JSF and Richfaces I want to go new ways. First of all Richfaces is a great framework and you can do (almost) everything you want. But some requirements are very tricky to implement, i.e. confirmation dialog with user input, multiple windows …

Currently I’m evaluating  Vaadin and I love it. It is so easy to use (at first sight). The java geek blog inspired me to try Vaadin.

In the near future I will post more about my experiences. Stay tuned