Re: [mojo-user] Is there a way to grab the classpath

Tue, 15 Oct 2013 12:38:49 -0700

http://maven.apache.org/plugins/maven-dependency-plugin/build-classpath-mojo.html should work.
There's one small note: I don't think you can use the value of the outputProperty directly in the pom.xml, since this file is parsed and resolved first, before any plugin is called. But you can use it to filter a resource file. 

Robert


On Tue, 15 Oct 2013 21:01:32 +0200, Jennings, Blair  
<blair.jenni...@nuance.com> wrote:



Like I said, we are removing ant from our builds (long story) so that is  
not going to work. And I tried using maven.compile.classpath but it was  
empty.


Blair

-----Original Message-----
From: Mirko Friedenhagen [mailto:mfriedenha...@gmail.com]
Sent: Tuesday, October 15, 2013 11:58 AM
To: user@mojo.codehaus.org
Subject: Re: [mojo-user] Is there a way to grab the classpath

Hello Blair,


you may invoke ant from Maven, use this in your plugin section (you  
might use maven.compile.classpath as well):


            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.7</version>
                <executions>
                    <execution>
                        <phase>integration-test</phase>
                        <configuration>
                            <tasks>
                                <property name="maven.test.classpath"
                                    refid="maven.test.classpath" />
                                <java failonerror="true" fork="true"
                                    classpath="${maven.test.classpath}"
                                    classname="YOUR_MAIN_CLASS">
                                    <arg
                                        value="COMMAND_LINE_ARGS" />
                                </java>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

Regards
Mirko
Regards Mirko
--
http://illegalstateexception.blogspot.com/
https://github.com/mfriedenhagen/
https://bitbucket.org/mfriedenhagen/



On Tue, Oct 15, 2013 at 7:03 PM, Jennings, Blair  
<blair.jenni...@nuance.com> wrote:

I could write a launcher app but then we will have a launcher app for
an already existing launcher app (the 3rd party one). I prefer to make
this system simpler not more complex, so I would rather not. As to
using ant we are actually trying to remove ant from our builds that is
why we opted to use maven, so bringing ant back into the picture is a
nonstarter. It looks like I might have to extend the exec plugin
myself to do what I need it to do. No problem I wanted to exhaust all
other possibilities first before going down that path.



Thanks,



Blair



From: Russell Gold [mailto:r...@gold-family.us]
Sent: Tuesday, October 15, 2013 9:56 AM


To: user@mojo.codehaus.org
Subject: Re: [mojo-user] Is there a way to grab the classpath



HI Blair,



Can you write a launcher app? That is, one that you can launch via the
exec plugin, and which can do the translation and launch the other app?



Alternately, I think you could use the ant run plugin - that should
have properties which provide the actual class path - and then you
would use ant to do the launching.



- Russ



On Oct 15, 2013, at 12:04 PM, "Jennings, Blair"
<blair.jenni...@nuance.com>
wrote:



Hi Russell,



Unfortunately, the app in question is not mine to change. It is a
third party one that we write components for, so I need to feed it
what is needed from maven.



Blair



From: Russell Gold [mailto:r...@gold-family.us]
Sent: Tuesday, October 15, 2013 9:00 AM
To: user@mojo.codehaus.org
Subject: Re: [mojo-user] Is there a way to grab the classpath



Hi Blair,



The underlying property is a list of strings. What you get when you
use it in a POM is the string representation. You would have to get
your program to translate it into a class path. Since your app is
taking it as a parameter, it should be able to do that. Just strip off
the beginning and ending brackets and split the string at the commas.



Regards,

Russ



On Oct 15, 2013, at 11:04 AM, "Jennings, Blair"
<blair.jenni...@nuance.com>
wrote:




Thanks Russell,



That has the right data just not in the right format. I need it to
look just like a normal classpath with the platform appropriate
separators. In my case that would be a : for I am on a linux box.
Instead that property gives me a comma delimited list that seems to
also start with a [.  Is there some way to transform that property

into what I need or is there another property out there that will give  
me what I want?




Thanks,



Blair



From: Russell Gold [mailto:r...@gold-family.us]
Sent: Monday, October 14, 2013 5:06 PM
To: user@mojo.codehaus.org
Subject: Re: [mojo-user] Is there a way to grab the classpath



Try the property, "project.compileClasspathElements"



On Oct 14, 2013, at 7:34 PM, "Jennings, Blair"
<blair.jenni...@nuance.com>
wrote:





Hello,



I am trying to use the exec plugin to run a vry large distributed
application, but in order to start the system I need to be able to
read the maven built classpath and pass that into my app as a
parameter. Is there a way to read the current classpath into a
variable or reference it in any way? I have tried multiple different
properties found via Google, but none of them have the data I need.



Thanks,





Blair





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-----------------

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Come read my webnovel, Take a Lemon <http://www.takealemon.com>,

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-----------------

Author, Getting Started with Apache Maven
<http://www.packtpub.com/getting-started-with-apache-maven/video>

Come read my webnovel, Take a Lemon <http://www.takealemon.com>,

and listen to the Misfile radio play
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