catch and log cluster singleton service registration exceptions

[groupbasedpolicy.git] / neutron-mapper / src / main / java / org / opendaylight / controller / config / yang / config / neutron_mapper / impl / NeutronMapperInstance.java

diff --git a/neutron-mapper/src/main/java/org/opendaylight/controller/config/yang/config/neutron_mapper/impl/NeutronMapperInstance.java b/neutron-mapper/src/main/java/org/opendaylight/controller/config/yang/config/neutron_mapper/impl/NeutronMapperInstance.java
index dc03214a910c7a70af38c3b424508adffbb3ea1a..044ddd77b7eabbb637bdd6df44b0fa0fc6f66dc6 100644 (file)
--- a/neutron-mapper/src/main/java/org/opendaylight/controller/config/yang/config/neutron_mapper/impl/NeutronMapperInstance.java
+++ b/neutron-mapper/src/main/java/org/opendaylight/controller/config/yang/config/neutron_mapper/impl/NeutronMapperInstance.java
@@ -8,21 +8,113 @@
 
 package org.opendaylight.controller.config.yang.config.neutron_mapper.impl;
 
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+
+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.controller.sal.binding.api.RpcProviderRegistry;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.NeutronMapper;
+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.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.BaseEndpointService;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.EndpointService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NeutronMapperInstance implements ClusterSingletonService, AutoCloseable {
 
-public class NeutronMapperInstance implements AutoCloseable{
+    private static final Logger LOG = LoggerFactory.getLogger(NeutronMapperInstance.class);
 
+    private static final ServiceGroupIdentifier IDENTIFIER =
+            ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
+    private final DataBroker dataBroker;
+    private final ClusterSingletonServiceProvider clusterSingletonService;
+    private final RpcProviderRegistry rpcBroker;
+    private IpPrefix metadataIpPrefix;
+    private int metadataPort;
+    private ClusterSingletonServiceRegistration singletonServiceRegistration;
     private NeutronMapper mapper;
 
-    public NeutronMapperInstance (DataBroker dataBroker, EndpointService epService,
-            BaseEndpointService baseEndpointService) {
-        mapper = new NeutronMapper(dataBroker, epService, baseEndpointService);
+    public NeutronMapperInstance(final DataBroker dataBroker,
+                                 final RpcProviderRegistry rpcBroker,
+                                 final ClusterSingletonServiceProvider clusterSingletonService,
+                                 final String metadataIp,
+                                 final String metadataPort) {
+        this.dataBroker = Preconditions.checkNotNull(dataBroker);
+        this.rpcBroker = Preconditions.checkNotNull(rpcBroker);
+        this.clusterSingletonService = Preconditions.checkNotNull(clusterSingletonService);
+        try {
+            InetAddress inetAddr = InetAddress.getByName(metadataIp);
+            if (inetAddr instanceof Inet4Address) {
+                this.metadataIpPrefix = new IpPrefix(new Ipv4Prefix(Preconditions.checkNotNull(metadataIp) + "/32"));
+            } else if (inetAddr instanceof Inet6Address) {
+                this.metadataIpPrefix = new IpPrefix(new Ipv6Prefix(Preconditions.checkNotNull(metadataIp) + "/128"));
+            }
+            this.metadataPort = Integer.parseInt(Preconditions.checkNotNull(metadataPort));
+            LOG.info("Resolved Metadata CIDR: {} and port {}.", metadataIpPrefix, metadataPort);
+        } catch (Exception ex) {
+            if (ex instanceof NumberFormatException) {
+                LOG.warn("Metadata port cannot be resolved. Provided value: {}. Continue without support for metadata.",
+                    metadataPort);
+            } else {
+                LOG.warn("MetadataIP could not be resolved. Provided value: {}. Continue without support for metadata.",
+                    metadataIp);
+            }
+            this.metadataIpPrefix = null;
+        }
     }
+
+    public void instantiate() {
+        LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
+        try {
+            singletonServiceRegistration = clusterSingletonService.registerClusterSingletonService(this);
+        }
+        catch (Exception e) {
+            LOG.warn("Exception while registering candidate ... ", e);
+        }
+    }
+
     @Override
-    public void close() throws Exception {
+    public void instantiateServiceInstance() {
+        LOG.info("Instantiating {}", this.getClass().getSimpleName());
+        final EndpointService epService = rpcBroker.getRpcService(EndpointService.class);
+        final BaseEndpointService baseEndpointService = rpcBroker.getRpcService(BaseEndpointService.class);
+        mapper = new NeutronMapper(dataBroker, epService, baseEndpointService, metadataIpPrefix, metadataPort);
+    }
+
+    @Override
+    public ListenableFuture<Void> closeServiceInstance() {
+        LOG.info("Instance {} closed", this.getClass().getSimpleName());
         mapper.close();
+        return Futures.immediateFuture(null);
     }
+
+    @Override
+    public void close() throws Exception {
+        LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
+        if (singletonServiceRegistration != null) {
+            try {
+                singletonServiceRegistration.close();
+            } catch (Exception e) {
+                LOG.warn("{} closed unexpectedly", e.getMessage());
+            }
+            singletonServiceRegistration = null;
+        }
+    }
+
+    @Override
+    public ServiceGroupIdentifier getIdentifier() {
+        return IDENTIFIER;
+    }
+
 }