liquibase.osgi.OSGiPackageScanClassResolver Maven / Gradle / Ivy
package liquibase.osgi;
import liquibase.logging.LogType;
import liquibase.servicelocator.DefaultPackageScanClassResolver;
import liquibase.servicelocator.PackageScanFilter;
import org.osgi.framework.Bundle;
import org.osgi.framework.wiring.BundleWiring;
import java.util.Collection;
import java.util.Set;
/**
* Package scan resolver that works with OSGI frameworks.
*/
public class OSGiPackageScanClassResolver extends DefaultPackageScanClassResolver {
private final Bundle bundle;
public OSGiPackageScanClassResolver(Bundle bundle) {
this.bundle = bundle;
}
@Override
protected void find(PackageScanFilter test, String packageName, Set> classes) {
BundleWiring bundleWiring = bundle.adapt(BundleWiring.class);
packageName = packageName.replace('.', '/');
Collection names =
bundleWiring.listResources(packageName, "*.class", BundleWiring.LISTRESOURCES_RECURSE);
if (names == null) {
return;
}
ClassLoader bundleClassLoader = bundleWiring.getClassLoader();
for (String name : names) {
String fixedName = name.substring(0, name.indexOf('.')).replace('/', '.');
try {
Class klass = bundleClassLoader.loadClass(fixedName);
if (test.matches(klass)) {
classes.add(klass);
}
} catch (ClassNotFoundException e) {
log.debug(LogType.LOG, "Cant load class: " + e.getMessage());
}
}
}
}