We use the features (or profiles) to group a list of related modules together based on the functions they provide. It provides an easy-to-use dependency for our samples in maven. Then we can build distributions to assemble a set of features into a downloadable archive.

The feature/profile is very lightweight (just a pom). We can create as many features as we want. For the Tomcat distribution, it's probably not an all-for-one thing. Depending on what functions the webapp wants to use, it can contain various features. For example, if web services are needed, then the distro has to contain binding.ws. The OSGi stuff can be potentially used in the webapp too.

We can use the exclusion to exclude some of the stuff or define a new feature/profile.

Thanks,
Raymond
--------------------------------------------------
From: "ant elder" <[email protected]>
Sent: Monday, June 01, 2009 12:32 AM
To: <[email protected]>
Subject: Re: svn commit: r779869 - /tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml

The problem is with the various webapp toolkits like myfaces and
stripes which get included with the tuscany runtime and try to
initialize themselves but the webapps don't have the correct
configuration so that results in spurious errors which make debugging
the tomcat integration harder, but also I think for now at least
(perhaps even always) we shouldn't embed client things like myfaces
and stripes with the tuscany runtime and it would be better to have
each webapp include those themselves if they need. Another issue is
that when using the features other unnecessary dependencies are
getting included like osgi jars.

To be honest I don't understand what the feature approach gives us
here and think its better and clearer and simpler to just use the
explicit dependencies so would really prefer we stick with that for
now.

  ...ant

On Fri, May 29, 2009 at 7:27 PM, Raymond Feng <[email protected]> wrote:
Can you tell us what modules are failing?

Thanks,
Raymond
--------------------------------------------------
From: <[email protected]>
Sent: Thursday, May 28, 2009 11:51 PM
To: <[email protected]>
Subject: svn commit: r779869 -
/tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml

Author: antelder
Date: Fri May 29 06:51:32 2009
New Revision: 779869

URL: http://svn.apache.org/viewvc?rev=779869&view=rev
Log:
Go back to eplicit dependencies as the features are dragging extra stuff
that doesnt work with the tomcat integration yet and is cauasing failures

Modified:
  tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml

Modified: tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml
URL:
http://svn.apache.org/viewvc/tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml?rev=779869&r1=779868&r2=779869&view=diff

==============================================================================
--- tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml (original)
+++ tuscany/java/sca/distribution/tomcat/tomcat-war/pom.xml Fri May 29
06:51:32 2009
@@ -48,25 +48,13 @@
       </dependency>
       <dependency>
           <groupId>org.apache.tuscany.sca</groupId>
-            <artifactId>tuscany-feature-webservice</artifactId>
+            <artifactId>tuscany-implementation-web-runtime</artifactId>
           <version>2.0-SNAPSHOT</version>
-            <type>pom</type>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.apache.tuscany.sca</groupId>
-                    <artifactId>tuscany-host-jetty</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.tuscany.sca</groupId>
-                    <artifactId>tuscany-host-tomcat</artifactId>
-                </exclusion>
-            </exclusions>
       </dependency>
       <dependency>
           <groupId>org.apache.tuscany.sca</groupId>
-            <artifactId>tuscany-feature-webapp</artifactId>
+            <artifactId>tuscany-binding-ws-axis2</artifactId>
           <version>2.0-SNAPSHOT</version>
-            <type>pom</type>
       </dependency>

   </dependencies>



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