Ok, thanks a million !
[EMAIL PROTECTED] wrote:
as I understand it, Felix does not yet support bundle fragments:
http://issues.apache.org/jira/browse/FELIX-29
which would explain why your code works on other R4 frameworks.
On 25/10/2007, Pierre De Rop <[EMAIL PROTECTED]> wrote:
Hello community;
I am facing an issue concerning Felix, Split packages and Fragment bundles.
Here is my use case:
1/ We have some bundles with (unfortunately) some esoteric "split packages"
which are not supported by OSGI.
For instance:
b1.jar exports package "com.p" with com.p.C1
b2.jar exports package "com.p" with com.p.C2
and:
class com.p.C1 instantiates the com.p.C2
2/ In order to solve this problem, we could incorporate b1.jar and b2.jar
into one "big.jar" with "Bundle-ClassPath: b1.jar, b2.jar",
but we can't dot that (for some reasons not exposed here ...).
3/ Now, I am trying to use Fragments in order to solve the split package
issue. It would be great if someone could have a look to the
following sample code because it does not work with Felix 1.0.1, but it
works properly with Knopflerfish and Equinox !
Here is my sample code: the fraghost.jar loads a class from frag1.jar,
which itself loads a class from frag2.jar ...
Bundle "fraghost.jar":
MANIFEST for fraghost.jar:
------------------------------------
Manifest-Version: 1.0
Created-By: 1.5.0_10 (Sun Microsystems Inc.)
Bundle-Name: FragHost
Bundle-SymbolicName: FragHost
Bundle-ManifestVersion: 2
Bundle-Version: 1.0.0
Bundle-Activator: com.test.fraghost.FragHost
Import-Package: org.osgi.framework
Class com.test.fraghost.FragHost from fraghost.jar:
----------------------------------------------------------------
public class FragHost implements BundleActivator {
public void start(BundleContext context) throws Exception {
out.println("FragHost is instantiating com.test.frag.Frag1 from
frag1.jar ...");
Runnable frag1 = (Runnable)
getClass().getClassLoader().loadClass("com.test.frag.Frag1").newInstance();
frag1.run();
}
public void stop(BundleContext context) throws Exception {
out.println("Stopping FragHost");
}
}
Bundle "frag1.jar":
MANIFEST for frag1.jar:
---------------------------------
Manifest-Version: 1.0
Created-By: 1.5.0_10 (Sun Microsystems Inc.)
Bundle-Name: Frag1
Bundle-SymbolicName: Frag1
Bundle-ManifestVersion: 2
Fragment-Host: FragHost
Class com/test/frag/Frag1.java from frag1.jar:
---------------------------------------------------------
public class Frag1 implements Runnable {
public Frag1() {
out.println("In Frag1 constructor");
}
public void run() {
try {
out.println("Frag1 is instantiating Frag2 ...");
Runnable frag2 = (Runnable)
Class.forName("com.test.frag.Frag2").newInstance();
frag2.run();
} catch (Throwable t) {
t.printStackTrace();
}
}
}
Bundle "frag2.jar":
MANIFEST for frag2.jar:
---------------------------------
Manifest-Version: 1.0
Created-By: 1.5.0_10 (Sun Microsystems Inc.)
Bundle-Name: Frag2
Bundle-SymbolicName: Frag2
Bundle-ManifestVersion: 2
Fragment-Host: FragHost
Class com/test/frag/Frag2.java from frag2.jar:
---------------------------------------------------------
public class Frag2 implements Runnable {
public Frag2() {
out.println("In Frag2 constructor");
}
public void run() {
try {
out.println("In Frag2.run ...");
} catch (Throwable t) {
t.printStackTrace();
}
}
}
Running these bundles with Felix 1.0.1, I have the following exception:
FragHost is instantiating com.test.frag.Frag1 from frag1.jar ...
ERROR: Error starting file:bundle/fraghost.jar
(org.osgi.framework.BundleException: Activator start error.)
java.lang.ClassNotFoundException: *** Class 'com.test.frag.Frag1' was not
found. Bundle 6 does not import package 'com.test.frag', nor is the package
exported by any other bundle or available from the system class loader. ***
at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:184)
at
org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)
at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:75)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at com.test.fraghost.FragHost.start(FragHost.java:13)
at
org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:589)
at org.apache.felix.framework.Felix._startBundle(Felix.java:1536)
at org.apache.felix.framework.Felix.startBundle(Felix.java:1470)
at
org.apache.felix.framework.Felix.setFrameworkStartLevel(Felix.java:1065)
at
org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:258)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.ClassNotFoundException: com.test.frag.Frag1
at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClassOrResource(R4SearchPolicyCore.java:412)
at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:175)
... 10 more
-> ps
START LEVEL 1
ID State Level Name
[ 0] [Active ] [ 0] System Bundle (1.0.1)
[ 1] [Active ] [ 1] Apache Felix Shell Service (1.0.0)
[ 2] [Active ] [ 1] Apache Felix Shell TUI (1.0.0)
[ 3] [Active ] [ 1] osgi (4.0)
[ 4] [Active ] [ 1] Frag1
[ 5] [Active ] [ 1] Frag2
[ 6] [Resolved ] [ 1] FragHost (1.0.0)
Thanks for your help;
Pierre.
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