package org.opendaylight.controller.config.yang.config.iovisor_provider.impl;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import org.opendaylight.controller.config.yang.config.groupbasedpolicy.GroupbasedpolicyInstance;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.groupbasedpolicy.api.EpRendererAugmentationRegistry;
import org.opendaylight.groupbasedpolicy.api.PolicyValidatorRegistry;
import org.opendaylight.groupbasedpolicy.renderer.iovisor.IovisorRenderer;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
+import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
-public class IovisorProviderInstance implements AutoCloseable{
+public class IovisorProviderInstance implements ClusterSingletonService, AutoCloseable {
+ private static final Logger LOG = LoggerFactory.getLogger(IovisorProviderInstance.class);
+
+ private static final ServiceGroupIdentifier IDENTIFIER =
+ ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
+ private final DataBroker dataBroker;
+ private final EpRendererAugmentationRegistry epRegistry;
+ private final PolicyValidatorRegistry policyValidator;
+ private final ClusterSingletonServiceProvider clusteringServiceProvider;
+ private ClusterSingletonServiceRegistration singletonServiceRegistration;
private IovisorRenderer renderer;
- public IovisorProviderInstance (DataBroker dataBroker, EpRendererAugmentationRegistry epRegistry,
- PolicyValidatorRegistry policyValidator) {
+ public IovisorProviderInstance(final DataBroker dataBroker,
+ final EpRendererAugmentationRegistry epRegistry,
+ final PolicyValidatorRegistry policyValidator,
+ final ClusterSingletonServiceProvider clusteringServiceProvider) {
+ this.dataBroker = Preconditions.checkNotNull(dataBroker);
+ this.epRegistry = Preconditions.checkNotNull(epRegistry);
+ this.policyValidator = Preconditions.checkNotNull(policyValidator);
+ this.clusteringServiceProvider = Preconditions.checkNotNull(clusteringServiceProvider);
+ }
+
+ public void initialize() {
+ LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
+ singletonServiceRegistration = clusteringServiceProvider.registerClusterSingletonService(this);
+ }
+
+ @Override
+ public void instantiateServiceInstance() {
+ LOG.info("Instantiating {}", this.getClass().getSimpleName());
renderer = new IovisorRenderer(dataBroker, epRegistry, policyValidator);
}
@Override
- public void close() throws Exception {
- renderer.close();
+ public ListenableFuture<Void> closeServiceInstance() {
+ try {
+ renderer.close();
+ } catch (Exception e) {
+ LOG.warn("Exception while closing ... ", e);
+ }
+ return Futures.immediateFuture(null);
}
+ @Override
+ public void close() {
+ LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
+ if (singletonServiceRegistration != null) {
+ try {
+ singletonServiceRegistration.close();
+ } catch (Exception e) {
+ LOG.warn("{} closed unexpectedly. Cause: {}", e.getMessage());
+ }
+ singletonServiceRegistration = null;
+ }
+ }
+
+ @Override
+ public ServiceGroupIdentifier getIdentifier() {
+ return IDENTIFIER;
+ }
}
<reference id="dataBroker" interface="org.opendaylight.controller.md.sal.binding.api.DataBroker"/>
<reference id="epRegistry" interface="org.opendaylight.groupbasedpolicy.api.EpRendererAugmentationRegistry"/>
<reference id="policyValidator" interface="org.opendaylight.groupbasedpolicy.api.PolicyValidatorRegistry"/>
+ <reference id="clusterSingletonService" interface="org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider"/>
<bean id="iovisor" class="org.opendaylight.controller.config.yang.config.iovisor_provider.impl.IovisorProviderInstance"
- destroy-method="close">
+ init-method="initialize" destroy-method="close">
<argument ref="dataBroker"/>
<argument ref="epRegistry"/>
<argument ref="policyValidator"/>
+ <argument ref="clusterSingletonService" />
</bean>
</blueprint>
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