Create the iPOJO configuration file for the bookshelf-service bundle (under src/main/ipojo/meta.xml):
<ipojo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="org.apache.felix.ipojo http://felix.apache.org/ipojo/schemas/CURRENT/core.xsd" xmlns="org.apache.felix.ipojo">
The component we're declaring here is the BookshelfServiceImpl:
<component classname= "com.packtpub.felix.bookshelf.service.impl.BookshelfServiceImpl" name="BookshelfServiceImpl">
And it provides a service, which will be published against the BookshelfService interface.
<provides />
In addition to that, we ask iPOJO to inject the inventory field we have just declared:
<requires field="inventory" /> </component>
And we finish with the instance declaration:
<instance component="BookshelfServiceImpl" name="bookshelf.service.impl" /> </ipojo>
The bookshelf-service bundle should now have version 1.9.0. Edit the build plugins section of the POM, commenting out (or removing) the Bundle-Activator instruction:
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.1.0</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-Category>sample</Bundle-Category>
<Bundle-SymbolicName>${artifactId}</Bundle-SymbolicName>
<Export-Package>
com.packtpub.felix.bookshelf.service.api,
com.packtpub.felix.bookshelf.service.impl
</Export-Package>
<!-- <Bundle-Activator>
com.packtpub.felix.bookshelf.service.impl.activator.BookshelfServiceImplActivator
</Bundle-Activator>
<Private-Package>
com.packtpub.felix.bookshelf.service.impl.activator
</Private-Package> -->
</instructions>
<!-- ... -->
The activator class is also deleted.
Also add the maven-ipojo-plugin declaration:
<plugin> <groupId>org.apache.felix</groupId> <artifactId>maven-ipojo-plugin</artifactId> <version>1.4.2</version> <executions> <execution> <goals> <goal>ipojo-bundle</goal> </goals> <configuration> <metadata>src/main/ipojo/meta.xml</metadata> </configuration> </execution> </executions> </plugin>
Once rebuilt and deployed to the releases repository, and then installed and started in Felix, checking with the ipojo:instances command should give:
g! instances
Instance bookshelf.inventory.impl.mock -> valid
Instance org.apache.felix.ipojo.arch.gogo.Arch-0 -> valid
Instance bookshelf.service.impl -> valid
The newly configured bundle was recognized by iPOJO. Let's check its details as follows:
g! instance bookshelf.service.impl
instance
component.type="BookshelfServiceImpl"
state="valid"
bundle="9"
name="bookshelf.service.impl"
handler
state="valid"
name="org.apache.felix.ipojo:requires"
requires optional="false" aggregate="false" state="resolved"
binding-policy="dynamic" proxy="true"
id="com.packtpub.felix.bookshelf.inventory.api.BookInventory"
specification=
"com.packtpub.felix.bookshelf.inventory.api.BookInventory"
...
The detailed instance information shows the bookshelf.service.impl instance registered as requiring com.packtpub.felix.bookshelf.inventory.api.BookInventory and that this requirement is fulfilled (state="resolved").
Testing the book commands should show no difference in their behavior. We'll go through a round of tests after updating the text UI bundle. But first, let's learn how to use annotations for component declarations instead of XML.