-/**
- * Copyright (c) 2016 Pantheon Technologies s.r.o. and others. All rights reserved.
+/*
+ * Copyright (c) 2016, 2017 Pantheon Technologies s.r.o. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.openflowplugin.applications.frm.impl;
import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Sets;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
+import javax.annotation.Nonnull;
+import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.DataObjectModification;
+import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
+import org.opendaylight.mdsal.binding.api.DataTreeModification;
+import org.opendaylight.mdsal.binding.api.RpcProviderService;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
+import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
+import org.opendaylight.openflowplugin.api.openflow.mastership.MastershipChangeRegistration;
+import org.opendaylight.openflowplugin.api.openflow.mastership.MastershipChangeService;
+import org.opendaylight.openflowplugin.api.openflow.mastership.MastershipChangeServiceManager;
+import org.opendaylight.openflowplugin.applications.frm.FlowNodeReconciliation;
+import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.app.frm.reconciliation.service.rev180227.FrmReconciliationService;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Manager for clustering service registrations of {@link DeviceMastership}.
*/
-public class DeviceMastershipManager {
+public class DeviceMastershipManager implements ClusteredDataTreeChangeListener<FlowCapableNode>, AutoCloseable,
+ MastershipChangeService {
private static final Logger LOG = LoggerFactory.getLogger(DeviceMastershipManager.class);
+ private static final InstanceIdentifier<FlowCapableNode> II_TO_FLOW_CAPABLE_NODE = InstanceIdentifier
+ .builder(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class).build();
+
private final ClusterSingletonServiceProvider clusterSingletonService;
- private final ConcurrentHashMap<NodeId, DeviceMastership> deviceMasterships = new ConcurrentHashMap();
+ private final FlowNodeReconciliation reconcliationAgent;
+ private final DataBroker dataBroker;
+ private final ConcurrentHashMap<NodeId, DeviceMastership> deviceMasterships = new ConcurrentHashMap<>();
+ private final Object lockObj = new Object();
+ private final RpcProviderService rpcProviderService;
+ private final FrmReconciliationService reconcliationService;
- public DeviceMastershipManager(final ClusterSingletonServiceProvider clusterSingletonService) {
+ private ListenerRegistration<DeviceMastershipManager> listenerRegistration;
+ private Set<InstanceIdentifier<FlowCapableNode>> activeNodes = Collections.emptySet();
+ private MastershipChangeRegistration mastershipChangeServiceRegistration;
+
+ public DeviceMastershipManager(final ClusterSingletonServiceProvider clusterSingletonService,
+ final FlowNodeReconciliation reconcliationAgent,
+ final DataBroker dataBroker,
+ final MastershipChangeServiceManager mastershipChangeServiceManager,
+ final RpcProviderService rpcProviderService,
+ final FrmReconciliationService reconciliationService) {
this.clusterSingletonService = clusterSingletonService;
+ this.reconcliationAgent = reconcliationAgent;
+ this.rpcProviderService = rpcProviderService;
+ this.reconcliationService = reconciliationService;
+ this.dataBroker = dataBroker;
+ registerNodeListener();
+ this.mastershipChangeServiceRegistration = mastershipChangeServiceManager.register(this);
}
- public void onDeviceConnected(final NodeId nodeId) {
- final DeviceMastership mastership = new DeviceMastership(nodeId, clusterSingletonService);
- deviceMasterships.put(nodeId, mastership);
- LOG.debug("FRM service registered for: {}", nodeId.getValue());
+ public boolean isDeviceMastered(final NodeId nodeId) {
+ return deviceMasterships.get(nodeId) != null && deviceMasterships.get(nodeId).isDeviceMastered();
}
- public void onDeviceDisconnected(final NodeId nodeId) {
- final DeviceMastership mastership = deviceMasterships.remove(nodeId);
- if (mastership != null) {
- mastership.close();
- }
- LOG.debug("FRM service unregistered for: {}", nodeId.getValue());
- }
+ public boolean isNodeActive(final NodeId nodeId) {
+ final InstanceIdentifier<FlowCapableNode> flowNodeIdentifier = InstanceIdentifier.create(Nodes.class)
+ .child(Node.class, new NodeKey(nodeId)).augmentation(FlowCapableNode.class);
+ return activeNodes.contains(flowNodeIdentifier);
- public boolean isDeviceMastered(final NodeId nodeId) {
- return deviceMasterships.get(nodeId) != null && deviceMasterships.get(nodeId).isDeviceMastered();
}
@VisibleForTesting
return deviceMasterships;
}
+ @Override
+ public void onDataTreeChanged(@Nonnull final Collection<DataTreeModification<FlowCapableNode>> changes) {
+ Preconditions.checkNotNull(changes, "Changes may not be null!");
+
+ for (DataTreeModification<FlowCapableNode> change : changes) {
+ final InstanceIdentifier<FlowCapableNode> key = change.getRootPath().getRootIdentifier();
+ final DataObjectModification<FlowCapableNode> mod = change.getRootNode();
+ final InstanceIdentifier<FlowCapableNode> nodeIdent = key.firstIdentifierOf(FlowCapableNode.class);
+
+ switch (mod.getModificationType()) {
+ case DELETE:
+ if (mod.getDataAfter() == null) {
+ remove(key, mod.getDataBefore(), nodeIdent);
+ }
+ break;
+ case SUBTREE_MODIFIED:
+ // NO-OP since we do not need to reconcile on Node-updated
+ break;
+ case WRITE:
+ if (mod.getDataBefore() == null) {
+ add(key, mod.getDataAfter(), nodeIdent);
+ }
+ break;
+ default:
+ throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
+ }
+ }
+ }
+
+ public void remove(final InstanceIdentifier<FlowCapableNode> identifier, final FlowCapableNode del,
+ final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+ if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE)) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Node removed: {}", nodeIdent.firstKeyOf(Node.class).getId().getValue());
+ }
+
+ if (!nodeIdent.isWildcarded() && activeNodes.contains(nodeIdent)) {
+ synchronized (lockObj) {
+ if (activeNodes.contains(nodeIdent)) {
+ Set<InstanceIdentifier<FlowCapableNode>> set = Sets.newHashSet(activeNodes);
+ set.remove(nodeIdent);
+ activeNodes = Collections.unmodifiableSet(set);
+ setNodeOperationalStatus(nodeIdent, false);
+ }
+ }
+ }
+ }
+ }
+
+ public void add(final InstanceIdentifier<FlowCapableNode> identifier, final FlowCapableNode add,
+ final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+ if (compareInstanceIdentifierTail(identifier, II_TO_FLOW_CAPABLE_NODE)) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Node added: {}", nodeIdent.firstKeyOf(Node.class).getId().getValue());
+ }
+
+ if (!nodeIdent.isWildcarded() && !activeNodes.contains(nodeIdent)) {
+ synchronized (lockObj) {
+ if (!activeNodes.contains(nodeIdent)) {
+ Set<InstanceIdentifier<FlowCapableNode>> set = Sets.newHashSet(activeNodes);
+ set.add(nodeIdent);
+ activeNodes = Collections.unmodifiableSet(set);
+ setNodeOperationalStatus(nodeIdent, true);
+ }
+ }
+ }
+ }
+ }
+
+ @Override
+ public void close() throws Exception {
+ if (listenerRegistration != null) {
+ listenerRegistration.close();
+ listenerRegistration = null;
+ }
+ if (mastershipChangeServiceRegistration != null) {
+ mastershipChangeServiceRegistration.close();
+ mastershipChangeServiceRegistration = null;
+ }
+ }
+
+ private boolean compareInstanceIdentifierTail(final InstanceIdentifier<?> identifier1,
+ final InstanceIdentifier<?> identifier2) {
+ return Iterables.getLast(identifier1.getPathArguments())
+ .equals(Iterables.getLast(identifier2.getPathArguments()));
+ }
+
+ private void setNodeOperationalStatus(final InstanceIdentifier<FlowCapableNode> nodeIid, final boolean status) {
+ NodeId nodeId = nodeIid.firstKeyOf(Node.class).getId();
+ if (nodeId != null && deviceMasterships.containsKey(nodeId)) {
+ deviceMasterships.get(nodeId).setDeviceOperationalStatus(status);
+ LOG.debug("Operational status of device {} is set to {}", nodeId, status);
+ }
+ }
+
+ @SuppressWarnings("IllegalCatch")
+ private void registerNodeListener() {
+
+ final InstanceIdentifier<FlowCapableNode> flowNodeWildCardIdentifier = InstanceIdentifier.create(Nodes.class)
+ .child(Node.class).augmentation(FlowCapableNode.class);
+
+ final DataTreeIdentifier<FlowCapableNode> treeId = DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL,
+ flowNodeWildCardIdentifier);
+
+ try {
+ SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(ForwardingRulesManagerImpl.STARTUP_LOOP_TICK,
+ ForwardingRulesManagerImpl.STARTUP_LOOP_MAX_RETRIES);
+
+ listenerRegistration = looper.loopUntilNoException(
+ () -> dataBroker.registerDataTreeChangeListener(treeId, DeviceMastershipManager.this));
+ } catch (Exception e) {
+ LOG.warn("Data listener registration failed: {}", e.getMessage());
+ LOG.debug("Data listener registration failed ", e);
+ throw new IllegalStateException("Node listener registration failed!", e);
+ }
+ }
+
+ @Override
+ public void onBecomeOwner(@Nonnull final DeviceInfo deviceInfo) {
+ LOG.debug("Mastership role notification received for device : {}", deviceInfo.getDatapathId());
+ DeviceMastership membership = deviceMasterships.computeIfAbsent(deviceInfo.getNodeId(),
+ device -> new DeviceMastership(deviceInfo.getNodeId()));
+ membership.reconcile();
+ membership.registerReconciliationRpc(rpcProviderService, reconcliationService);
+ }
+
+ @Override
+ public void onLoseOwnership(@Nonnull final DeviceInfo deviceInfo) {
+ final DeviceMastership mastership = deviceMasterships.remove(deviceInfo.getNodeId());
+ if (mastership != null) {
+ mastership.deregisterReconciliationRpc();
+ mastership.close();
+ LOG.debug("Unregistered deviceMastership for device : {}", deviceInfo.getNodeId());
+ }
+ }
}
Code Review / openflowplugin.git / blobdiff