*/
package org.opendaylight.openflowplugin.applications.topology.manager;
-import java.util.concurrent.ExecutionException;
-
+import com.google.common.base.Optional;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.sal.binding.api.AbstractBindingAwareProvider;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
+import org.opendaylight.openflowplugin.common.txchain.TransactionChainManager;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.binding.NotificationListener;
-import org.osgi.framework.BundleContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-public class FlowCapableTopologyProvider extends AbstractBindingAwareProvider implements AutoCloseable {
- private final static Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyProvider.class);
+public class FlowCapableTopologyProvider implements AutoCloseable {
+ private static final Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyProvider.class);
+ private static final String TOPOLOGY_PROVIDER = "topology-provider";
+ static final String TOPOLOGY_ID = "flow:1";
+
+
+ private final DataBroker dataBroker;
+ private final NotificationProviderService notificationService;
+ private final OperationProcessor processor;
+ private TransactionChainManager transactionChainManager;
private ListenerRegistration<NotificationListener> listenerRegistration;
- private Thread thread;
- private LinkChangeListenerImpl linkChangeListener;
- private NodeChangeListenerImpl nodeChangeListener;
+
+ public FlowCapableTopologyProvider(DataBroker dataBroker, NotificationProviderService notificationService,
+ OperationProcessor processor) {
+ this.dataBroker = dataBroker;
+ this.notificationService = notificationService;
+ this.processor = processor;
+ }
/**
* Gets called on start of a bundle.
- *
- * @param session
*/
- @Override
- public synchronized void onSessionInitiated(final ProviderContext session) {
- final DataBroker dataBroker = session.getSALService(DataBroker.class);
- final NotificationProviderService notificationService = session.getSALService(NotificationProviderService.class);
-
- final String name = "flow:1";
- final TopologyKey key = new TopologyKey(new TopologyId(name));
+ public void start() {
+ final TopologyKey key = new TopologyKey(new TopologyId(TOPOLOGY_ID));
final InstanceIdentifier<Topology> path = InstanceIdentifier
.create(NetworkTopology.class)
.child(Topology.class, key);
- final OperationProcessor processor = new OperationProcessor(dataBroker);
final FlowCapableTopologyExporter listener = new FlowCapableTopologyExporter(processor, path);
this.listenerRegistration = notificationService.registerNotificationListener(listener);
- linkChangeListener = new LinkChangeListenerImpl(dataBroker);
- nodeChangeListener = new NodeChangeListenerImpl(dataBroker);
+ this.transactionChainManager = new TransactionChainManager(dataBroker, TOPOLOGY_PROVIDER);
+ this.transactionChainManager.activateTransactionManager();
+ this.transactionChainManager.initialSubmitWriteTransaction();
- final ReadWriteTransaction tx = dataBroker.newReadWriteTransaction();
- tx.put(LogicalDatastoreType.OPERATIONAL, path, new TopologyBuilder().setKey(key).build(), true);
- try {
- tx.submit().get();
- } catch (InterruptedException | ExecutionException e) {
- LOG.warn("Initial topology export failed, continuing anyway", e);
+ if(!isFlowTopologyExist(path)){
+ transactionChainManager.writeToTransaction(
+ LogicalDatastoreType.OPERATIONAL,
+ path,
+ new TopologyBuilder().setKey(key).build(),
+ true);
+ transactionChainManager.submitTransaction();
}
- thread = new Thread(processor);
- thread.setDaemon(true);
- thread.setName("FlowCapableTopologyExporter-" + name);
- thread.start();
+ LOG.info("FlowCapableTopologyProvider started");
}
@Override
- public synchronized void close() throws InterruptedException {
+ public void close() {
LOG.info("FlowCapableTopologyProvider stopped.");
+ this.transactionChainManager.close();
if (this.listenerRegistration != null) {
try {
this.listenerRegistration.close();
} catch (Exception e) {
- LOG.error("Failed to close listener registration", e);
+ LOG.warn("Failed to close listener registration: {}", e.getMessage());
+ LOG.debug("Failed to close listener registration.. ", e);
}
listenerRegistration = null;
}
- unregisterListener(linkChangeListener);
- unregisterListener(nodeChangeListener);
- if (thread != null) {
- thread.interrupt();
- thread.join();
- thread = null;
- }
}
- private void unregisterListener(final AutoCloseable listenerToClose) {
- if (listenerToClose != null) {
- try {
- listenerToClose.close();
- } catch (Exception e) {
- LOG.error("Failed to close listener registration", e);
- }
- }
- }
-
- /**
- * Gets called during stop bundle
- *
- * @param context The execution context of the bundle being stopped.
- */
- @Override
- public void stopImpl(final BundleContext context) {
+ private boolean isFlowTopologyExist(final InstanceIdentifier<Topology> path) {
try {
- this.close();
- } catch (InterruptedException e) {
- LOG.error("Failed to stop provider", e);
+ Optional<Topology> ofTopology = this.transactionChainManager
+ .readFromTransaction(LogicalDatastoreType.OPERATIONAL, path)
+ .checkedGet();
+ LOG.debug("OpenFlow topology exist in the operational data store at {}",path);
+ if(ofTopology.isPresent()){
+ return true;
+ }
+ } catch (ReadFailedException e) {
+ LOG.warn("OpenFlow topology read operation failed!", e);
}
+ return false;
}
}
Code Review / openflowplugin.git / blobdiff