Hello,
I have a bunch of JAR files from open source projects which
rely heavily on the ServiceLocator pattern META-INF/services.
For each of these JARs I want to build a corresponding OSGI
bundle. Is there any standardized way how to map META-INF/services
to OSGI services such that the dependencies between the JARS
still work? As far as I know this is necessary because of the
class loaders architecture which is different between the
META-INF/services and the OSGI pattern.
Here is an example
JARS
JAR X JAR Y
defines an implements org.a.X
interface org.a.X with class net.b.Y
looks up has a file
implementations META-INF/services/org.a.X
via ServiceLocator which contains the line
which in turn scans net.b.Y
any entry in
META-INF/services/org.a.X
on the available
class path
Class loader for org.a.X has net.b.Y in its class path.
OSGI bundles
OSGI bundle org.X OSGI bundle org.Y
include JAR X include JAR Y
class loader does not depends on bundle
see net.b.Y org.X
requires service provides OSGI services
implementations for for each entry in
org.a.X META-INF/services/org.a.X
which contains an
provides them to entry from JAR Y
JAR X such that (here only for net.b.Y)
they are found by
the ServiceLocator [How can this work?]
pattern
[How this can work
is exactly the
question I asked]
Thank you
Michael
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