Clement Escoffier wrote:
A cool feature could be a general-purpose parser to parser the value
string and instanciate from it Object or array of Object
For instance (108.16.10.2, 108.16.10.10 and many others),
<property
field="m_myProducerFlavor"
name="wireadmin.producer.flavors"
value="{org.osgi.util.measurement.Measurement, java.lang.Double}"
parser="fr.imag.osgi.ipojo.wireadmin.ClassArrayParser"
/>
public class ClassArrayParser { public ClassArrayParser(String
value) { ... } public Class[] newInstance() { ... }
}
This is possible but it is not simple.
At packaging time, attribute does not have any semantic, so iPOJO
plugin cannot know that your parser attribute contains a class name
and that it needs to add the import to the bundle manifest.
You may add a directive element in the iPOJO component manifest.
to add import in the bundle manifest
such as
<import package="fr.imag.osgi.ipojo.wireadmin"/>
or
<dynamic-import package="fr.imag.osgi.ipojo.*"/>
More generally, you may add a general-purpose mecanism to custom
directives elements in the iPOJO component manifest.
Each directive could reference a iPOJODirectiveProcessor
For instance
<import package="fr.imag.osgi.ipojo.wireadmin"/>
<dynamic-import package="fr.imag.osgi.ipojo.*"/>
become
<ipojo:directive
name="org.apache.felix.ipojo.directive.ImportDirectiveProcessor"
value="fr.imag.osgi.ipojo.wireadmin"/>
<ipojo:directive
name="org.apache.felix.ipojo.directive.DynamicImportDirectiveProcessor"
value="fr.imag.osgi.ipojo.*"/>
This is similar to the PI (Processing Instruction) defined in XML 1.0
Best regards
Didier
So, you need to ensure that your class is inside the bundle. If you do
this assumption, the handler managing properties could at runtime
interpret the attribute (the handler know the semantic of the
attribute), load the class, and create your array.
Clément
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Didier DONSEZ
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