How is the maven plugin supposed to interact with the cssUrlRewriting. I've managed to make things work to some degree by maintaining a parallel tree of static resources and disabling the cssUrlRewriting, but feel that I may be missing something important.

You can control the processors chain, find out how to do that here: http://code.google.com/p/wro4j/wiki/ProcessorsManagement

Hi,

I want to use several wro4j files and process them differently (e.g. different source files, different destination folders, different compression).

I created the wro.xml files in 4 different directories and would use all 4 for generating 4 different all-targets in different destination directories.

How can I specify 4 different configurations and 4 different compression algorithms (e.g. cssMin, beautifyJs, ...) in the pom.xml?

Thanks for your help

Artur

Sorry for the inconvinience,

I did find the solution by moving the configuration into the <execution> section and using different <id/>s for each section.

Cheers

Artur

Hi Artur, you've found the solution I was about to suggest. Just one thing: there is no need to have multiple wro.xml files. You can create different groups and reuse the same wro.xml file for all processing variation you need.

Hi Alex,

thanks for your suggestion. I was using different wro4j configuration files because I wanted to generate the same files for two different devices, e.g. all.css for iphone and all.css for desktop. Both are using different input css files and the output css files should be stored in different directories. This is now working nicely with the different execution sections.

The only issue I've got at the moment is the wish to use the WRO4J maven plugin as simple as the WRO4J-Runner on command line. The reason is to use a simple way to specify the preprocessors by our web developr as propertty in the pom.xml like it works for WRO4J runner (-m -c BeautifyJs?). Especially because we want to use different compression algorithms for the "devel" profile and for the "prod" profile.

On "devel" we would like to use "cssLint" for css, "BeautifyJs?" for javascript, but on the prod profile perhaps "yuiCssMin" for CSS and "GoogleClosureAdvanced?" for javascript.

The easiest way would be the possibility to define it like the WRO4J URI filter in the <filter/> section using the ConfigurableWroManagerFactory and only specifying the <preprocessors> in the <configuration> instead of creating standalone factories for all algorithms available in WRO4J.

Thanks for your help

Artur

I am thinking about creating somekind of DSL for specifying processors, which could be used by maven plugin. Not sure how this should look like yet.

This feature isn't hard to implement, but I don't want to add it unless I have a good and simple way to use it. Once a feature is added, it should be supported in future releases.

You could try to implement ProcessorsFactory? interface which would read a property file where you would define the processors you would like to be used during processors. Your implementation could be a good starting point for this feature, because you are the first one who had the idea for this use-case.

The issue containing this feature has been created: http://code.google.com/p/wro4j/issues/detail?id=254

Hi,

I would keep it as consistent as possible with the <filter/> version of WRO4J. It would be enough to have the possibility to use <preprocessors>CssImportPre? lessCss dataUri yuiCssMin</preprocessors> as chain for one <configuration> section in the plugin.

Would it be too complicated to reuse the same code as in the <filter> configuration?

What do you think?

Thanks a lot for your help and your great work!

Artur

Actually I would rather keep this kind of configuration out of web.xml. The preferred way would be a property file or something similar. Check out the updated documentation: http://code.google.com/p/wro4j/wiki/Installation

This approach would keep the web.xml clean and allow you to change configuration programatically based on your environment or other preferences.

hi together,

I have a problem with the point that artur was asking: how to use multiple processings within one pom.xml? We did it like it is described here, but it is not working. the plugin is searching for the wro.xml instead of the specified wro-vcl.xml.

any ideas?

this is very importing for us.

regards dirk

<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <artifactId>myartifact</artifactId>
    <groupId>mytool</groupId>
    <version>1.0.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>${project.artifactId}.${project.packaging} - ${project.version}</name>
    <parent>
        <groupId>myartifactfather</groupId>
        <artifactId>myartifacttool</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <relativePath>../base-pom.xml</relativePath>
    </parent>
    <dependencies>
        <dependency>
            <groupId>com.ibm.wps</groupId>
            <artifactId>portletapi</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <distributionManagement>
        <snapshotRepository>
            <id>nexus</id>
            <name>Repository</name>
            <url>myurl/</url>
        </snapshotRepository>
    </distributionManagement>
    <properties>
        <minimize>true</minimize>
    </properties>
    <build>
        <plugins>
            <!--  Optimizing css & js files -->
            <plugin>
                <groupId>ro.isdc.wro4j</groupId>
                <artifactId>wro4j-maven-plugin</artifactId>
                <version>1.4.1</version>
                <executions>
                    <!-- VCL css & js -->
                    <execution>
                        <id>vcl</id>
                        <configuration>
                            <targetGroups>vcl</targetGroups>
                            <wroFile>${basedir}/src/main/webapp/WEB-INF/wro-vcl.xml</wroFile>
                            <destinationFolder>${basedir}/src/main/webapp/vcl/</destinationFolder>
                            <extraConfigFile>${basedir}/src/main/webapp/WEB-INF/wro-vcl.properties</extraConfigFile>
                        </configuration>
                        <phase>compile</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                    <!-- js -->
                    <execution>
                        <id>js</id>
                        <configuration>
                            <targetGroups>all-js</targetGroups>
                            <wroFile>${basedir}/src/main/webapp/WEB-INF/wro-js.xml</wroFile>
                            <destinationFolder>${basedir}/src/main/webapp/js</destinationFolder>
                            <extraConfigFile>${basedir}/src/main/webapp/WEB-INF/wro-js.properties</extraConfigFile>
                        </configuration>
                        <phase>compile</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <contextFolder>${basedir}/src/main/webapp/</contextFolder>
                    <minimize>${minimize}</minimize>
                    <ignoreMissingResources>false</ignoreMissingResources>
                    <wroManagerFactory>ro.isdc.wro.maven.plugin.manager.factory.ConfigurableWroManagerFactory</wroManagerFactory>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <SCM-Revision>${buildNumber}</SCM-Revision>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Hi,

Can you show the content of the wro-vc.properties & wro-js.properties files?

Also, could we move this discussion to mailing list? (I don't want to pollute this wiki page with too much comments).

Thanks, Alex

I have tried locally, and as long as all required files exist, everything works as expected.

wro-vcl.properties:

preProcessors=cssUrlRewriting,yuiCssMin,yuiJsMinAdvanced
postProcessors=

but the problem is that the files are not loaded.

i start maven like this: mvn wro4j:run and this is the result:

D:\home\prjct\dsar\src\new-arch\common\fwk.theme.portal>set java_home=C:\Program Files (x86)\Java\jre6 
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building fwk.theme.war.war - 1.0.0-SNAPSHOT 1.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- wro4j-maven-plugin:1.4.1:run (default-cli) @ fwk.theme.war ---
[INFO] Executing the mojo: 
[INFO] Wro4j Model path: D:\home\prjct\src\new-arch\common\fwk.theme.portal\src\main\webapp\WEB-INF\wro.xml
[INFO] targetGroups: null
[INFO] minimize: true
[INFO] ignoreMissingResources: false
[INFO] wroManagerFactory: ro.isdc.wro.maven.plugin.manager.factory.ConfigurableWroManagerFactory
[INFO] destinationFolder: D:\home\prjct\src\new-arch\common\fwk.theme.portal\target\wro
[INFO] jsDestinationFolder: null
[INFO] cssDestinationFolder: null
[INFO] groupNameMappingFile: null
[INFO] wroManagerFactory class: ro.isdc.wro.maven.plugin.manager.factory.ConfigurableWroManagerFactory
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.579s
[INFO] Finished at: Mon Oct 24 14:44:19 CEST 2011
[INFO] Final Memory: 4M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal ro.isdc.wro4j:wro4j-maven-plugin:1.4.1:run (default-cli) on project retacc.fwk.theme.war: Exception occured while processing: Exception while loading properties file from D:\home\prjct\dsar\src\new-arch\common\fwk.theme.portal\src\main\webapp\WEB-INF\wro.properties: D:\home\prjct\dsar\src\new-arch\common\fwk.theme.portal\src\main\webapp\WEB-INF\wro.properties (Das System kann die angegebene Datei nicht finden) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Try to run it using:

mvn clean package

From some reason, when running the wro4j:run goal directly, the options aren't picked-up. I think this is something related to how maven works when multiple executions are configured (not related to wro4j maven plugin)

it works. thank you for your support!