*/
package org.opendaylight.controller.config.manager.impl.osgi;
-import static java.lang.String.format;
import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Charsets;
-import com.google.common.base.Stopwatch;
-import com.google.common.collect.HashMultimap;
-import com.google.common.collect.Multimap;
import com.google.common.io.Resources;
-import com.google.common.util.concurrent.Uninterruptibles;
import java.io.IOException;
import java.net.URL;
-import java.util.AbstractMap;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.concurrent.TimeUnit;
-import javax.annotation.concurrent.GuardedBy;
+import java.nio.charset.StandardCharsets;
import org.opendaylight.controller.config.spi.ModuleFactory;
import org.osgi.framework.Bundle;
-import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
+import org.osgi.framework.ServiceRegistration;
import org.osgi.util.tracker.BundleTrackerCustomizer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
* the services are unregistered automatically.
* Code based on http://www.toedter.com/blog/?p=236
*/
-public class ModuleFactoryBundleTracker implements BundleTrackerCustomizer<Object> {
- private static final Logger LOG = LoggerFactory.getLogger(ModuleFactoryBundleTracker.class);
- private static final long BUNDLE_CONTEXT_TIMEOUT = TimeUnit.MILLISECONDS.convert(60, TimeUnit.SECONDS);
-
+public class ModuleFactoryBundleTracker implements BundleTrackerCustomizer<Boolean> {
private final BlankTransactionServiceTracker blankTransactionServiceTracker;
-
- @GuardedBy(value = "bundleModuleFactoryMap")
- private final Multimap<BundleKey, ModuleFactory> bundleModuleFactoryMap = HashMultimap.create();
+ private static final Logger LOG = LoggerFactory.getLogger(ModuleFactoryBundleTracker.class);
public ModuleFactoryBundleTracker(BlankTransactionServiceTracker blankTransactionServiceTracker) {
this.blankTransactionServiceTracker = blankTransactionServiceTracker;
}
@Override
- public Object addingBundle(Bundle bundle, BundleEvent event) {
- if(event != null && (event.getType() == BundleEvent.STOPPED || event.getType() == BundleEvent.STOPPING)) {
- // We're tracking RESOLVED, STARTING, and ACTIVE states but not STOPPING. So when a bundle transitions
- // to STOPPING, removedBundle gets called and we remove the ModuleFactory entries. However the
- // bundle will then transition to RESOLVED which will cause the tracker to notify addingBundle.
- // In this case we don't want to re-add the ModuleFactory entries so we check if the BundleEvent
- // is STOPPED.
- return null;
- }
-
+ public Boolean addingBundle(Bundle bundle, BundleEvent event) {
URL resource = bundle.getEntry("META-INF/services/" + ModuleFactory.class.getName());
LOG.trace("Got addingBundle event of bundle {}, resource {}, event {}",
bundle, resource, event);
if (resource != null) {
try {
- for (String factoryClassName : Resources.readLines(resource, Charsets.UTF_8)) {
- Entry<ModuleFactory, Bundle> moduleFactoryEntry = registerFactory(factoryClassName, bundle);
- synchronized (bundleModuleFactoryMap) {
- bundleModuleFactoryMap.put(new BundleKey(moduleFactoryEntry.getValue()),
- moduleFactoryEntry.getKey());
- }
+ for (String factoryClassName : Resources.readLines(resource, StandardCharsets.UTF_8)) {
+ registerFactory(factoryClassName, bundle);
}
+
+ return Boolean.TRUE;
} catch (IOException e) {
LOG.error("Error while reading {}", resource, e);
throw new RuntimeException(e);
}
}
- return bundle;
+
+ return Boolean.FALSE;
}
@Override
- public void modifiedBundle(Bundle bundle, BundleEvent event, Object object) {
+ public void modifiedBundle(Bundle bundle, BundleEvent event, Boolean hasFactory) {
// NOOP
}
@Override
- public void removedBundle(Bundle bundle, BundleEvent event, Object object) {
- synchronized (bundleModuleFactoryMap) {
- bundleModuleFactoryMap.removeAll(new BundleKey(bundle));
+ public void removedBundle(Bundle bundle, BundleEvent event, Boolean hasFactory) {
+ if(hasFactory) {
+ // workaround for service tracker not getting removed service event
+ blankTransactionServiceTracker.blankTransactionSync();
}
-
- // workaround for service tracker not getting removed service event
- blankTransactionServiceTracker.blankTransaction();
- }
-
- public Collection<Map.Entry<ModuleFactory, BundleContext>> getModuleFactoryEntries() {
- Collection<Entry<BundleKey, ModuleFactory>> entries;
- synchronized (bundleModuleFactoryMap) {
- entries = new ArrayList<>(bundleModuleFactoryMap.entries());
- }
-
- Collection<Map.Entry<ModuleFactory, BundleContext>> result = new ArrayList<>(entries.size());
- for(Entry<BundleKey, ModuleFactory> entry: entries) {
- BundleContext context = entry.getKey().getBundleContext();
- if(context == null) {
- LOG.warn("Bundle context for {} ModuleFactory not found", entry.getValue());
- } else {
- result.add(new AbstractMap.SimpleImmutableEntry<>(entry.getValue(), context));
- }
- }
-
- return result;
}
@VisibleForTesting
- protected static Map.Entry<ModuleFactory, Bundle> registerFactory(String factoryClassName, Bundle bundle) {
+ protected static ServiceRegistration<?> registerFactory(String factoryClassName, Bundle bundle) {
String errorMessage;
Exception ex = null;
try {
Class<?> clazz = bundle.loadClass(factoryClassName);
if (ModuleFactory.class.isAssignableFrom(clazz)) {
try {
- LOG.debug("Registering {} in bundle {}", clazz.getName(), bundle);
-
- return new AbstractMap.SimpleImmutableEntry<>((ModuleFactory)clazz.newInstance(), bundle);
+ LOG.debug("Registering {} in bundle {}",
+ clazz.getName(), bundle);
+ return bundle.getBundleContext().registerService(
+ ModuleFactory.class.getName(), clazz.newInstance(),
+ null);
} catch (InstantiationException e) {
errorMessage = logMessage(
"Could not instantiate {} in bundle {}, reason {}",
"Illegal access during instantiation of class {} in bundle {}, reason {}",
factoryClassName, bundle, e);
ex = e;
- } catch (RuntimeException e) {
- errorMessage = logMessage(
- "Unexpected exception during instantiation of class {} in bundle {}, reason {}",
- clazz, bundle.getBundleContext(), e);
- ex = e;
}
} else {
errorMessage = logMessage(
public static String logMessage(String slfMessage, Object... params) {
LOG.info(slfMessage, params);
String formatMessage = slfMessage.replaceAll("\\{\\}", "%s");
- return format(formatMessage, params);
- }
-
- private static class BundleKey {
- Bundle bundle;
- BundleContext bundleContext;
-
- public BundleKey(Bundle bundle) {
- this.bundle = bundle;
- }
-
- BundleContext getBundleContext() {
- if(bundleContext != null) {
- return bundleContext;
- }
-
- // If the bundle isn't activated yet, it may not have a BundleContext yet so busy wait for it.
- Stopwatch timer = Stopwatch.createStarted();
- while(timer.elapsed(TimeUnit.MILLISECONDS) <= BUNDLE_CONTEXT_TIMEOUT) {
- bundleContext = bundle.getBundleContext();
- if(bundleContext != null) {
- return bundleContext;
- }
-
- Uninterruptibles.sleepUninterruptibly(10, TimeUnit.MILLISECONDS);
- }
-
- return null;
- }
-
- @Override
- public int hashCode() {
- return (int) bundle.getBundleId();
- }
-
- @Override
- public boolean equals(Object obj) {
- if (getClass() != obj.getClass()) {
- return false;
- }
- BundleKey other = (BundleKey) obj;
- return bundle.getBundleId() == other.bundle.getBundleId();
- }
+ return String.format(formatMessage, params);
}
}
Code Review / controller.git / blobdiff