Maven 2 GPG Plugin

Maven 2 GPG Plugin, allows to sign attached artifacts with GunPG. One of the tedious processes involved in releasing a project is to sign its artifacts. Some of the releases might contain 10-15 artifacts. Ex: WSO2 WSAS etc. So in order to get the release process smoother, one could just need to add the following plugin into the parent pom.xml,

<plugin>
<groupid>org.apache.maven.plugins</groupid>
<artifactid>maven-gpg-plugin</artifactid>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution>
</executions>
</plugin>


The latest version of this plugin is 1.0-alpha-4 as at 2007-09-28.

Then using "mvn clean deploy" will sign the artifacts in addition to md5 & sha1. It's advisable if the prior plugin be added in a "profile" section. Then only at the release time, "asc" files are generated. Trust me, when you have A LOT OF artifacts to be signed, above plugin is a life saver.

Embed Eclipse Equinox in a Servlet Container

OSGi is dominant mobile phones and handheld devices. Now the interest has significantly moved from these embedded to full blown servers. Hence, people are looking at eliminating barriers using OSGi on servers.

Eclipse Equinox is pursing work related to "Server-Side Equinox". The target is to embed Equinox in a Servlet Container, using what is called the principle of "servletbridge" to run OSGi based application in a servlet container.

To test this out read here,

In summary.

1. Install your favourite servlet container (Tomcat, Jetty etc)
2. Download and deploy per-build web application archive (bridge.war)
3. Start the web container (http://localhost:8080/bridge)
4. There are bunch of things you can do, which will be available here.


"servletbridge" is a cool concept, which can be applied to any OSGi implementation, such as Apache Felix, Knopflerfish etc
Hence, WSO2 Carbon, the next generation web services infrastructure powered by enterprise Axis2 uses "servletbridge" concept to provide an OSGi environment to uses to embed bundles that mimic the behavior of Axis2 service & module archives.