OSGI传递依赖项级别

Question

I am currently trying to bundle a nonOSGI maven project. Right now, I have something like,

 <?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<!-- The Basics -->
<artifactId>Project1</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<dependencies>
    <dependency>
        <groupId>internal.commons</groupId>
        <artifactId>internalcommons</artifactId>
        <version>1.5</version>
    </dependency>
    <dependency>
        <groupId>jdom</groupId>
        <artifactId>jdom</artifactId>
        <version>1.0</version>
    </dependency>
</dependencies> 
<parent>
    <groupId>internal</groupId>
    <artifactId>jar-project</artifactId>
    <version>1.0</version>
</parent>
<name>Project 1</name>

<build> 
    <directory>${basedir}/bundles</directory>
    <plugins>
        <plugin>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <archive>
                    <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
                </archive>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.felix</groupId>
            <artifactId>maven-bundle-plugin</artifactId>
            <version>2.3.7</version>
            <extensions>true</extensions>
            <configuration>
                <instructions>
                    <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
                    <Bundle-Name>${project.name}</Bundle-Name>
                    <Bundle-Version>1.0</Bundle-Version>
                    <Import-Package>*;resolution:=optional</Import-Package>
                    <Embed-Dependency>*</Embed-Dependency>
                    <Embed-Transitive>true</Embed-Transitive>
                </instructions>
            </configuration>
        </plugin>       
    </plugins>  
</build>

My nonOSGI bundle however depends on various different jars, some of these jars have dependencies too. When I bundle the nonOSGI maven project, I can only get the immediate dependencies of this bundle, when I use bundleall, I get an error relating to xml-apis:xml-apis:jar:2.6.2. I COULD create a bundles of all the dependencies if there is no other option but there are just too many dependencies.

Any help would be appreciated!

Answer 1

Well,

According to the posted stacktrace there is no xml-apis:xml-apis:2.6.2 artifact in the central repo . I suppose it should be xerces:xmlParserAPIs:2.6.2 . Here is updated pom that does not have problems with embedding deps:

<?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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <!-- The Basics -->
    <groupId>internal</groupId>
    <artifactId>Project1</artifactId>
    <version>1.0</version>
    <packaging>bundle</packaging>

    <name>Project 1</name>

    <dependencies>
        <dependency>
            <groupId>jdom</groupId>
            <artifactId>jdom</artifactId>
            <version>1.0</version>
        </dependency>
        <dependency>
            <groupId>xerces</groupId>
            <artifactId>xmlParserAPIs</artifactId>
            <version>2.6.2</version>
        </dependency>
    </dependencies> 

    <build> 
        <plugins>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <version>2.3.7</version>
                <extensions>true</extensions>
                <configuration>
                    <instructions>
                        <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
                        <Bundle-Name>${project.name}</Bundle-Name>
                        <Bundle-Version>1.0</Bundle-Version>
                        <Import-Package>*;resolution:=optional</Import-Package>
                        <Embed-Dependency>*</Embed-Dependency>
                        <Embed-Transitive>true</Embed-Transitive>
                    </instructions>
                </configuration>
            </plugin>       
        </plugins>  
    </build>

</project>

Notice using packaging=bundle . To build just execute mvn package .

Although maven-bundle-plugin helps with embedding dependencies I highly recommend you not to do it if it's possible to achieve higher modularity of your project. There are repos with prebuilt osgi bundles, for example: apache servicemix bundles , spring enterprise bundle repository , etc.