Shamik, 



I completely understand how you feel about making bundles out of non-bundled 
.jar files. The standard answer is to contact the vendor and have them make 
bundles for you. However, this can take a while to accomplish and sometimes, 
especially for open-source .jar's, it may be difficult to get in touch with the 
folks who made the original .jar file.  In addition to that method, there are a 
couple of quick and easy ways to make a osgi bundle out of a non-osgi .jar 
file. 



First, you may want to consider using Karaf.  This product can ride of top of 
felix (or equinox), and it has a number of helper functions that will make your 
job easier. 



Second, when you install a non-bundled .jar file into Felix, try using the 
following syntax: 

osgi:install wrap:mvn:<artifactId>/<groupId>/version 



I haven't tried this in Felix, but in Karaf over the top of Felix, this will 
automagically wrap your non-osgi bundle.  "Wrapping" in the process of using a 
tool to add osgi-stuff into a non-osgi .jar file's MANIFEST.MF file.  While 
this may not be the best approach for an operational environment, this will 
definately help you get your test stuff working. 



To make a more operational-ready bundle, you can use the bnd tool to wrap your 
existing bundle.  Bnd is a very powerful tool and is pretty well documented. 
Google it for more information. 



Please let me know if this helps! 


----- Original Message ----- 
From: "Shamik Bandopadhyay" <[email protected]> 
To: [email protected] 
Sent: Friday, June 10, 2011 2:52:09 PM 
Subject: Re: Felix maven-bundle-plugin transitive dependency issue 

Hi, 

  Thanks for your reply. Being a newbie, I'm finding a li'l hard to 
grasp the concept maybe. I agree, that embedding transitive dependency 
might not be the greatest idea since it contradicts OSGI fundamental. 
But at the sametime what bothers me is how do we address the non-osgi 
jars ? I can "n" number of jars in my project which maybe have other 
transitive dependencies. I don't see how efficient is the process of 
manually identifing them and make them OSGi enabled. I found the 
transitive dependency support comes handy in these cases. 

Unfortunately, I'm still not able to figure out how the 
<Embed-Transitive> property works for the maven-plugin-bundle. 
After,trying all possible combinations(so far), I haven't seen a 
single instance where a transitive jar got embedded in the bundle. 

I perhaps, need to do more reading to understand this. 

Can you pls share any pointers for best practises in this regard? 

Appreciate your help... 

-Thanks 

On Fri, Jun 10, 2011 at 11:41 AM,  <[email protected]> wrote: 
> 
> 
> Shamik, 
> 
> 
> 
> Embedding the transitive dependencies is one of those things that you can do 
> in OSGi, but usually you shouldn't. The problem is that your bundle is likely 
> not going to use most of the transitive dependencies.  So, embedding them 
> into your bundle can leave you with a much larger bundle than you really need 
> with a bunch of "stuff" you don't need.  Another problem that you'll see when 
> embedding transitive dependencies is that you may run into a circumstance 
> where a transitive dependency (especially for older stuff) isn't available 
> any more.  In this case, your build will break. 
> 
> 
> 
> A better approach is to identify those bundles that you are actually going to 
> use (which you've already done), and deploy those into OSGi before you deploy 
> your taxonomy dao bundle.  A rule of thumb that I use is, if a bundle is 
> listed in the dependencies section of the pom, that bundle should be 
> available within OSGi. 
> 
> 
> 
> So, in short, try not embedding any dependencies in your bundle; instead, 
> deploying all of the necessary bundles into OSGi first. If that doesn't work, 
> only then should you try to embed. 
> 
> 
> 
> Please let me know if that helps! 
> 
> 
> ----- Original Message ----- 
> From: "Shamik Bandopadhyay" <[email protected]> 
> To: [email protected] 
> Sent: Friday, June 10, 2011 1:56:54 PM 
> Subject: Felix maven-bundle-plugin transitive dependency issue 
> 
> Hi, 
> 
> I'm new to OSGI and trying to deploy my first application. I've a 
> spring dependency in my pom. While deploying I realized that Felix 
> runtime requires all transitive dependencies to install the bundle 
> properly. Since then, I'm sort of struggling to resolve this issue. 
> I've tried embedded-dependency and embedded-transitive options, but of 
> no luck. Here's my pom. 
> 
> 
> <project xmlns="http://maven.apache.org/POM/4.0.0"; 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
>     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
> http://maven.apache.org/xsd/maven-4.0.0.xsd";> 
>     <modelVersion>4.0.0</modelVersion> 
>     <groupId>com.test</groupId> 
>     <artifactId>taxonomydaobundle</artifactId> 
>     <version>1.0.0</version> 
>     <packaging>bundle</packaging> 
>     <name>Taxonomy Dao Bundle</name> 
>     <url>http://maven.apache.org</url> 
>     <repositories> 
>         <repository> 
>             <id>fusesource</id> 
>             <url>http://repo.fusesource.com/maven2</url> 
>             <snapshots> 
>                 <enabled>false</enabled> 
>             </snapshots> 
>             <releases> 
>                 <enabled>true</enabled> 
>             </releases> 
>         </repository> 
>         <repository> 
>             <id>apache-public</id> 
>             <url>https://repository.apache.org/content/groups/public/</url> 
>             <snapshots> 
>                 <enabled>true</enabled> 
>             </snapshots> 
>             <releases> 
>                 <enabled>true</enabled> 
>             </releases> 
>         </repository> 
>     </repositories> 
> 
>     <properties> 
>         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
>     </properties> 
> 
>     <dependencies> 
>         <dependency> 
>             <groupId>com.test</groupId> 
>             <artifactId>taxonomymodelbundle</artifactId> 
>             <version>1.0.0</version> 
>             <scope>compile</scope> 
>         </dependency> 
>         <dependency> 
>             <groupId>org.springframework</groupId> 
>             <artifactId>spring</artifactId> 
>             <version>2.5.5</version> 
>         </dependency> 
>         <dependency> 
>             <groupId>junit</groupId> 
>             <artifactId>junit</artifactId> 
>             <version>3.8.1</version> 
>             <scope>test</scope> 
>         </dependency> 
>     </dependencies> 
> 
>     <build> 
>         <plugins> 
>             <plugin> 
>                 <groupId>org.apache.felix</groupId> 
>                 <artifactId>maven-bundle-plugin</artifactId> 
>                 <version>2.0.1</version> 
>                 <extensions>true</extensions> 
>                 <configuration> 
>                     <instructions> 
>                         <Export-Package>com.test.taxonomy.api.*;version=1.0.0 
>                         </Export-Package> 
> 
> <Import-Package>com.test.taxonomy.message.*;version=1.0.0, 
>                             * 
>                         </Import-Package> 
> 
> <Embed-Dependency>*;scope=compile|runtime</Embed-Dependency> 
>                         <Embed-Transitive>true</Embed-Transitive> 
>                     </instructions> 
>                 </configuration> 
>             </plugin> 
>             <plugin> 
>                 <groupId>org.apache.maven.plugins</groupId> 
>                 <artifactId>maven-compiler-plugin</artifactId> 
>                 <version>2.1</version> 
>                 <configuration> 
>                     <source>1.6</source> 
>                     <target>1.6</target> 
>                 </configuration> 
>             </plugin> 
>         </plugins> 
>     </build> 
> </project> 
> 
>  mvn install only embeds the direct dependency jars in the bundle. 
> When I try to install the bundle in Felix, its throwing import errors 
> as it's failing to resolve the dependencies. Here's a snippet : 
> 
> Imported Packages        ERROR: bsh -- Cannot be resolved 
> ERROR: com.caucho.burlap.client -- Cannot be resolved 
> ERROR: com.caucho.burlap.io -- Cannot be resolved 
> ERROR: com.caucho.burlap.server -- Cannot be resolved 
> ERROR: com.caucho.hessian.client -- Cannot be resolved 
> ERROR: com.caucho.hessian.io -- Cannot be resolved 
> ERROR: com.caucho.hessian.server -- Cannot be resolved 
> ERROR: com.ibatis.common.util -- Cannot be resolved 
> ERROR: com.ibatis.common.xml -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.client -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.client.event -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.engine.builder.xml -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.engine.impl -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.engine.transaction -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.engine.transaction.external -- Cannot be resolved 
> ERROR: com.ibatis.sqlmap.engine.type -- Cannot be resolved 
> ERROR: com.ibm.wsspi.uow -- Cannot be resolved 
> ERROR: com.jamonapi -- Cannot be resolved 
> ERROR: com.mchange.v2.c3p0 -- Cannot be resolved 
> ERROR: com.sun.enterprise.loader -- Cannot be resolved and overwritten 
> by Boot Delegation 
> ERROR: com.sun.net.httpserver -- Cannot be resolved and overwritten by 
> Boot Delegation 
> ERROR: com.sun.rowset -- Cannot be resolved and overwritten by Boot 
> Delegation 
> ERROR: commonj.timers -- Cannot be resolved 
> ERROR: commonj.work -- Cannot be resolved 
> ERROR: edu.emory.mathcs.backport.java.util.concurrent -- Cannot be resolved 
> ERROR: freemarker.cache -- Cannot be resolved 
> ERROR: freemarker.template -- Cannot be resolved 
> 
> My understanding was using <Embed-Transitive>true</Embed-Transitive> 
> will embed all transitive dependency jars in the bundle,but apparently 
> that's not been the case so far. 
> 
> I'll appreciate if someone can tell what's the right approach to 
> resolve this issue. 
> 
> -Thanks 
> 
> --------------------------------------------------------------------- 
> To unsubscribe, e-mail: [email protected] 
> For additional commands, e-mail: [email protected] 
> 
> 

--------------------------------------------------------------------- 
To unsubscribe, e-mail: [email protected] 
For additional commands, e-mail: [email protected] 

Reply via email to