reference.conf and Maven

[Peter Wolf]

Hello I am getting stuck on building Actors with Maven

I would like to bundle everything into a single JAR.  But when I do this, Akka code can no longer find the reference.conf files from the libraries.

I am using the net.alchim31.maven scala-maven-plugin and  marking all dependencies as "compile"

What is the recommended way to build Akka with Maven?

Thanks

Peter              

[√iktor Ҡlang]

Hi Peter,

May I interest you in reading the documentation?

http://doc.akka.io/docs/akka/2.3.0/general/configuration.html#When_using_JarJar__OneJar__Assembly_or_any_jar-bundler

Cheers,
V

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[Peter Wolf]

Thank you Victor,

Yes I had read that documentation, and I do have the shade plugin in my pom.xml

Unfortunately, it does not seem to work :-(

Here is my settings for it...

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-shade-plugin</artifactId>

                <version>1.5</version>

                <executions>

                    <execution>

                        <phase>package</phase>

                        <goals>

                            <goal>shade</goal>

                        </goals>

                        <configuration>

                            <shadedArtifactAttached>true</shadedArtifactAttached>

                            <shadedClassifierName>allinone</shadedClassifierName>

                            <artifactSet>

                                <includes>

                                    <include>*:*</include>

                                </includes>

                            </artifactSet>

                            <transformers>

                                <transformer

                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">

                                    <resource>reference.conf</resource>

                                </transformer>

                                <transformer

                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">

                                    <manifestEntries>

                                        <Main-Class>akka.Main</Main-Class>

                                    </manifestEntries>

                                </transformer>

                            </transformers>

                        </configuration>

                    </execution>

                </executions>

            </plugin>

            <plugin>

 

[Peter Wolf]

But reading it again...  It seems to recommend that I manually create a reference.conf that is a merge of those from all the libraries.

Is that really all that shade does?

[√iktor Ҡlang]

Hi Peter,

I do not use Maven, and I unfortunately cannot foresee what "does not work" actually yields.

Have you searched the mailing list archives for answers?

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Cheers,

√

———————

Viktor Klang

Chief Architect - Typesafe

Twitter: @viktorklang

[Peter Wolf]

Thanks for the help Victor, I think I got it

I created my own reference.conf which is just all the reference.conf from each library appended together.  I put that reference.conf in my resource directory.

So far, it seems to work, but I'll have to remember to recreate it when I upgrade to new libraries

P

[Patrik Nordwall]

If I understand it correctly; maven Shade plugin provides the capability of packaging an application with all dependencies into one fat jar. It also provides the capability to transform resources, in this case merging reference.conf files.

/Patrik

 

P

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Patrik Nordwall
Typesafe -  Reactive apps on the JVM
Twitter: @patriknw