spring-boot-osgi-demo's Introduction

Spring Boot OSGi Demo

This is demo application that shows how to use OSGi with Spring Boot.

Build Application

Execute below maven command, which will create a bundle in target/deploy directory and can be deployed in Apache Karaf Container.

mvn clean install

calc-core

Here, calc-core bundle is providing service of Calculator and itself implementing Addition Service.

After deploying only calc-core bundle if we call below Rest API.

http://localhost:8013/calculator

Then, its response would be like

["Addition"]

calc-plugin

Here, calc-plugin is implementing Calculator Service and providing support for Subtraction also. This plugin is dependent on calc-core plugin.

After deploying calc-core, if we again call same Rest API.

http://localhost:8013/calculator

Then, its response would be like

["Addition","Subtraction"]

To perform calculator operation, call below RestAPI.

http://localhost:8013/calculator/{operation}?n1={n1}&n2={n2}

For Example,

http://localhost:8013/calculator/addition?n1=12&n2=12

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spring-boot-osgi-demo's Issues

How to deal with transitive dependencies

Hi,
I have a issue with transitive dependencies. can you please help?

So I have a project A that depends on project B that depends on ch.qos.logback.core

in project A I have a pom.xml as follows

<instructions>
                        <Bundle-SymbolicName>
                            ${pom.groupId}.${pom.artifactId}
                        </Bundle-SymbolicName>
                        <Bundle-Name>${pom.name}</Bundle-Name>
                        <Bundle-Version>${pom.version}</Bundle-Version>
                        <Bundle-Activator>
                           xxx.BundleActivatorIpml
                        </Bundle-Activator>
                        <Export-Package>
                            de.markant.pam.parser
                        </Export-Package>
                        <Private-Package>xxx.*</Private-Package>
                        <Embed-Dependency>*;scope=compile|runtime;inline=true</Embed-Dependency>
                        <Embed-Tansitive>true</Embed-Tansitive>
                        <Import-Package>*</Import-Package>
                    </instructions>

when I start the bundle in kafka, i get the following error


karaf@root()> bundle:start 83
Error executing command: Error executing command on bundles:
        Error starting bundle 83: Unable to resolve xxx-playground [83](R 83.0): missing requirement [xxx-playground [83](R 83.0)] osgi.wiring.package; (&(osgi.wiring.package=ch.qos.logback.core)(version>=1.2.0)(!(version>=2.0.0))) Unresolved requirements: [[xxx-playground [83](R 83.0)] osgi.wiring.package; (&(osgi.wiring.package=ch.qos.logback.core)(version>=1.2.0)(!(version>=2.0.0)))]

Thank you

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