Merge changes I7c36c88e,I7c5d97c7
authorTony Tkacik <ttkacik@cisco.com>
Mon, 26 May 2014 19:30:58 +0000 (19:30 +0000)
committerGerrit Code Review <gerrit@opendaylight.org>
Mon, 26 May 2014 19:30:58 +0000 (19:30 +0000)
* changes:
  BUG-1070: make BundleContext required
  BUG-1070: allow for URL registration failing

opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/config/yang/md/sal/dom/impl/SchemaServiceImplSingletonModule.java
opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/GlobalBundleScanningSchemaServiceImpl.java
opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/osgi/SchemaServiceActivator.java

index 93284c9..fd24944 100644 (file)
@@ -19,29 +19,26 @@ import org.osgi.framework.ServiceReference;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-/**
-*
-*/
 public final class SchemaServiceImplSingletonModule extends
-        org.opendaylight.controller.config.yang.md.sal.dom.impl.AbstractSchemaServiceImplSingletonModule {
+org.opendaylight.controller.config.yang.md.sal.dom.impl.AbstractSchemaServiceImplSingletonModule {
 
     private static final Logger LOG = LoggerFactory.getLogger(SchemaServiceImplSingletonModule.class);
 
     BundleContext bundleContext;
 
-    public SchemaServiceImplSingletonModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-            org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
+    public SchemaServiceImplSingletonModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
+            final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
         super(identifier, dependencyResolver);
     }
 
-    public SchemaServiceImplSingletonModule(org.opendaylight.controller.config.api.ModuleIdentifier identifier,
-            org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
-            SchemaServiceImplSingletonModule oldModule, java.lang.AutoCloseable oldInstance) {
+    public SchemaServiceImplSingletonModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
+            final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
+            final SchemaServiceImplSingletonModule oldModule, final java.lang.AutoCloseable oldInstance) {
         super(identifier, dependencyResolver, oldModule, oldInstance);
     }
 
     @Override
-    public boolean canReuseInstance(AbstractSchemaServiceImplSingletonModule oldModule) {
+    public boolean canReuseInstance(final AbstractSchemaServiceImplSingletonModule oldModule) {
         return true;
     }
 
@@ -49,7 +46,7 @@ public final class SchemaServiceImplSingletonModule extends
         return bundleContext;
     }
 
-    public void setBundleContext(BundleContext bundleContext) {
+    public void setBundleContext(final BundleContext bundleContext) {
         this.bundleContext = bundleContext;
     }
 
@@ -65,8 +62,7 @@ public final class SchemaServiceImplSingletonModule extends
             return new GlobalSchemaServiceProxy(getBundleContext(), ref);
         }
 
-        GlobalBundleScanningSchemaServiceImpl newInstance = new GlobalBundleScanningSchemaServiceImpl();
-        newInstance.setContext(getBundleContext());
+        GlobalBundleScanningSchemaServiceImpl newInstance = new GlobalBundleScanningSchemaServiceImpl(getBundleContext());
         newInstance.start();
         return newInstance;
     }
@@ -77,7 +73,7 @@ public final class SchemaServiceImplSingletonModule extends
         private ServiceReference<SchemaService> reference;
         private SchemaService delegate;
 
-        public GlobalSchemaServiceProxy(BundleContext bundleContext, ServiceReference<SchemaService> ref) {
+        public GlobalSchemaServiceProxy(final BundleContext bundleContext, final ServiceReference<SchemaService> ref) {
             this.bundleContext = bundleContext;
             this.reference = ref;
             this.delegate = bundleContext.getService(reference);
@@ -102,7 +98,7 @@ public final class SchemaServiceImplSingletonModule extends
         }
 
         @Override
-        public void addModule(Module arg0) {
+        public void addModule(final Module arg0) {
             delegate.addModule(arg0);
         }
 
@@ -117,12 +113,12 @@ public final class SchemaServiceImplSingletonModule extends
         }
 
         @Override
-        public ListenerRegistration<SchemaServiceListener> registerSchemaServiceListener(SchemaServiceListener arg0) {
+        public ListenerRegistration<SchemaServiceListener> registerSchemaServiceListener(final SchemaServiceListener arg0) {
             return delegate.registerSchemaServiceListener(arg0);
         }
 
         @Override
-        public void removeModule(Module arg0) {
+        public void removeModule(final Module arg0) {
             delegate.removeModule(arg0);
         }
 
index dab8fd5..430963a 100644 (file)
@@ -10,7 +10,10 @@ package org.opendaylight.controller.sal.dom.broker;
 import static com.google.common.base.Preconditions.checkState;
 
 import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Enumeration;
+import java.util.List;
 
 import org.opendaylight.controller.sal.core.api.model.SchemaService;
 import org.opendaylight.controller.sal.dom.broker.impl.SchemaContextProvider;
@@ -33,54 +36,34 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.google.common.base.Optional;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.ImmutableSet.Builder;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
 
-public class GlobalBundleScanningSchemaServiceImpl implements //
-        SchemaContextProvider, //
-        SchemaService, //
-        ServiceTrackerCustomizer<SchemaServiceListener, SchemaServiceListener>, //
-        AutoCloseable {
-    private static final Logger logger = LoggerFactory.getLogger(GlobalBundleScanningSchemaServiceImpl.class);
-
-    private ListenerRegistry<SchemaServiceListener> listeners;
-
-    private BundleContext context;
-    private final BundleScanner scanner = new BundleScanner();
-
-    private BundleTracker<ImmutableSet<Registration<URL>>> bundleTracker;
+public class GlobalBundleScanningSchemaServiceImpl implements SchemaContextProvider, SchemaService, ServiceTrackerCustomizer<SchemaServiceListener, SchemaServiceListener>, AutoCloseable {
+    private static final Logger LOG = LoggerFactory.getLogger(GlobalBundleScanningSchemaServiceImpl.class);
 
+    private final ListenerRegistry<SchemaServiceListener> listeners = new ListenerRegistry<>();
     private final URLSchemaContextResolver contextResolver = new URLSchemaContextResolver();
+    private final BundleScanner scanner = new BundleScanner();
+    private final BundleContext context;
 
     private ServiceTracker<SchemaServiceListener, SchemaServiceListener> listenerTracker;
-
+    private BundleTracker<Iterable<Registration<URL>>> bundleTracker;
     private boolean starting = true;
 
-    public ListenerRegistry<SchemaServiceListener> getListeners() {
-        return listeners;
-    }
-
-    public void setListeners(final ListenerRegistry<SchemaServiceListener> listeners) {
-        this.listeners = listeners;
+    public GlobalBundleScanningSchemaServiceImpl(final BundleContext context) {
+        this.context = Preconditions.checkNotNull(context);
     }
 
     public BundleContext getContext() {
         return context;
     }
 
-    public void setContext(final BundleContext context) {
-        this.context = context;
-    }
-
     public void start() {
         checkState(context != null);
-        if (listeners == null) {
-            listeners = new ListenerRegistry<>();
-        }
 
         listenerTracker = new ServiceTracker<>(context, SchemaServiceListener.class, GlobalBundleScanningSchemaServiceImpl.this);
-        bundleTracker = new BundleTracker<ImmutableSet<Registration<URL>>>(context, BundleEvent.RESOLVED
-                        | BundleEvent.UNRESOLVED, scanner);
+        bundleTracker = new BundleTracker<>(context, BundleEvent.RESOLVED | BundleEvent.UNRESOLVED, scanner);
         bundleTracker.open();
         listenerTracker.open();
         starting = false;
@@ -139,7 +122,7 @@ public class GlobalBundleScanningSchemaServiceImpl implements //
             try {
                 listener.getInstance().onGlobalContextUpdated(snapshot);
             } catch (Exception e) {
-                logger.error("Exception occured during invoking listener", e);
+                LOG.error("Exception occured during invoking listener", e);
             }
         }
         if (services != null) {
@@ -148,37 +131,47 @@ public class GlobalBundleScanningSchemaServiceImpl implements //
                 try {
                     listener.onGlobalContextUpdated(snapshot);
                 } catch (Exception e) {
-                    logger.error("Exception occured during invoking listener", e);
+                    LOG.error("Exception occured during invoking listener {}", listener, e);
                 }
             }
         }
     }
 
-    private class BundleScanner implements BundleTrackerCustomizer<ImmutableSet<Registration<URL>>> {
+    private class BundleScanner implements BundleTrackerCustomizer<Iterable<Registration<URL>>> {
         @Override
-        public ImmutableSet<Registration<URL>> addingBundle(final Bundle bundle, final BundleEvent event) {
+        public Iterable<Registration<URL>> addingBundle(final Bundle bundle, final BundleEvent event) {
 
             if (bundle.getBundleId() == 0) {
-                return ImmutableSet.of();
+                return Collections.emptyList();
             }
 
-            Enumeration<URL> enumeration = bundle.findEntries("META-INF/yang", "*.yang", false);
-            Builder<Registration<URL>> builder = ImmutableSet.<Registration<URL>> builder();
-            while (enumeration != null && enumeration.hasMoreElements()) {
-                Registration<URL> reg = contextResolver.registerSource(enumeration.nextElement());
-                builder.add(reg);
+            final Enumeration<URL> enumeration = bundle.findEntries("META-INF/yang", "*.yang", false);
+            if (enumeration == null) {
+                return Collections.emptyList();
             }
-            ImmutableSet<Registration<URL>> urls = builder.build();
-            if(urls.isEmpty()) {
-                return urls;
+
+            final List<Registration<URL>> urls = new ArrayList<>();
+            while (enumeration.hasMoreElements()) {
+                final URL u = enumeration.nextElement();
+                try {
+                    urls.add(contextResolver.registerSource(u));
+                    LOG.debug("Registered {}", u);
+                } catch (Exception e) {
+                    LOG.warn("Failed to register {}, ignoring it", e);
+                }
             }
-            tryToUpdateSchemaContext();
-            return urls;
+
+            if (!urls.isEmpty()) {
+                LOG.debug("Loaded {} new URLs, rebuilding schema context", urls.size());
+                tryToUpdateSchemaContext();
+            }
+
+            return ImmutableList.copyOf(urls);
         }
 
         @Override
-        public void modifiedBundle(final Bundle bundle, final BundleEvent event, final ImmutableSet<Registration<URL>> object) {
-            logger.debug("Modified bundle {} {} {}", bundle, event, object);
+        public void modifiedBundle(final Bundle bundle, final BundleEvent event, final Iterable<Registration<URL>> object) {
+            LOG.debug("Modified bundle {} {} {}", bundle, event, object);
         }
 
         /**
@@ -188,12 +181,12 @@ public class GlobalBundleScanningSchemaServiceImpl implements //
          */
 
         @Override
-        public synchronized void removedBundle(final Bundle bundle, final BundleEvent event, final ImmutableSet<Registration<URL>> urls) {
+        public synchronized void removedBundle(final Bundle bundle, final BundleEvent event, final Iterable<Registration<URL>> urls) {
             for (Registration<URL> url : urls) {
                 try {
                     url.close();
                 } catch (Exception e) {
-                    e.printStackTrace();
+                    LOG.warn("Failed do unregister URL {}, proceeding", url, e);
                 }
             }
             tryToUpdateSchemaContext();
@@ -212,7 +205,7 @@ public class GlobalBundleScanningSchemaServiceImpl implements //
     }
 
     public synchronized void tryToUpdateSchemaContext() {
-        if(starting ) {
+        if (starting) {
             return;
         }
         Optional<SchemaContext> schema = contextResolver.tryToUpdateSchemaContext();
index 344b3f3..f893f96 100644 (file)
@@ -17,20 +17,19 @@ import org.osgi.framework.ServiceRegistration;
 
 public class SchemaServiceActivator implements BundleActivator {
 
-    
+
     private ServiceRegistration<SchemaService> schemaServiceReg;
     private GlobalBundleScanningSchemaServiceImpl schemaService;
 
     @Override
-    public void start(BundleContext context) throws Exception {
-        schemaService = new GlobalBundleScanningSchemaServiceImpl();
-        schemaService.setContext(context);
+    public void start(final BundleContext context) {
+        schemaService = new GlobalBundleScanningSchemaServiceImpl(context);
         schemaService.start();
         schemaServiceReg = context.registerService(SchemaService.class, schemaService, new Hashtable<String,String>());
     }
-    
+
     @Override
-    public void stop(BundleContext context) throws Exception {
+    public void stop(final BundleContext context) throws Exception {
         schemaServiceReg.unregister();
         schemaService.close();
     }

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