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/*
* ============LICENSE_START========================================================================
* ONAP : ccsdk feature sdnr wt
* =================================================================================================
* Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
* =================================================================================================
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
* ============LICENSE_END==========================================================================
*/
package org.onap.ccsdk.features.sdnr.wt.devicemanager.impl;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.concurrent.GuardedBy;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.devicemonitor.impl.DeviceMonitor;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.eventdatahandler.ODLEventListenerHandler;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.factory.NetworkElementFactory;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.NetworkElement;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.DeviceManagerServiceProvider;
import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfNodeConnectListener;
import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfNodeStateService;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus.ConnectionStatus;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DeviceManagerNetconfConnectHandler extends DeviceManagerNetconfNotConnectHandler
implements NetconfNodeConnectListener {
private static final Logger LOG = LoggerFactory.getLogger(DeviceManagerNetconfConnectHandler.class);
private final Object networkelementLock;
/** Contains all connected devices */
@GuardedBy("networkelementLock")
private final ConcurrentHashMap<String, NetworkElement> connectedNetworkElementRepresentations;
private final @NonNull ListenerRegistration<DeviceManagerNetconfConnectHandler> registerNetconfNodeConnectListener;
public DeviceManagerNetconfConnectHandler(@NonNull NetconfNodeStateService netconfNodeStateService,
@NonNull ClusterSingletonServiceProvider clusterSingletonServiceProvider,
@NonNull ODLEventListenerHandler odlEventListenerHandler, @NonNull DeviceMonitor deviceMonitor,
@NonNull DeviceManagerServiceProvider serviceProvider, @NonNull List<NetworkElementFactory> factoryList) {
super(netconfNodeStateService, clusterSingletonServiceProvider, odlEventListenerHandler, deviceMonitor,
serviceProvider, factoryList);
this.networkelementLock = new Object();
this.connectedNetworkElementRepresentations = new ConcurrentHashMap<>();
this.registerNetconfNodeConnectListener = netconfNodeStateService.registerNetconfNodeConnectListener(this);
}
@Override
public void onEnterConnected(@NonNull NetconfAccessor acessor) {
//@NonNull NodeId nNodeId, @NonNull NetconfNode netconfNode,
//@NonNull MountPoint mountPoint, @NonNull DataBroker netconfNodeDataBroker
String mountPointNodeName = acessor.getNodeId().getValue();
LOG.debug("onEnterConnected - starting Event listener on Netconf for mountpoint {}", mountPointNodeName);
LOG.debug("Master mountpoint {}", mountPointNodeName);
// It is master for mountpoint and all data are available.
// Make sure that specific mountPointNodeName is handled only once.
// be aware that startListenerOnNodeForConnectedState could be called multiple
// times for same mountPointNodeName.
// networkElementRepresentations contains handled NEs at master node.
if (isInNetworkElementRepresentations(mountPointNodeName)) {
LOG.warn("Mountpoint {} already registered. Leave startup procedure.", mountPointNodeName);
return;
}
// update db with connect status
NetconfNode netconfNode = acessor.getNetconfNode();
sendUpdateNotification(acessor.getNodeId(), netconfNode.getConnectionStatus(), netconfNode);
for (NetworkElementFactory f : getFactoryList()) {
Optional<NetworkElement> optionalNe = f.create(acessor, getServiceProvider());
if (optionalNe.isPresent()) {
// sendUpdateNotification(mountPointNodeName, nNode.getConnectionStatus(), nNode);
handleNeStartup(acessor.getNodeId(), optionalNe.get());
break; // Use the first provided
}
}
}
@Override
public void onLeaveConnected(@NonNull NodeId nNodeId, @NonNull Optional<NetconfNode> optionalNetconfNode) {
LOG.debug("onLeaveConnected {}", nNodeId);
String mountPointNodeName = nNodeId.getValue();
if (optionalNetconfNode.isPresent()) {
NetconfNode nNode = optionalNetconfNode.get();
ConnectionStatus csts = nNode.getConnectionStatus();
sendUpdateNotification(nNodeId, csts, nNode);
}
// Handling if mountpoint exist. connected -> connecting/UnableToConnect
stopListenerOnNodeForConnectedState(mountPointNodeName);
if (isDeviceMonitorEnabled()) {
getDeviceMonitor().deviceDisconnectIndication(mountPointNodeName);
}
}
@Override
public void close() {
if (Objects.nonNull(registerNetconfNodeConnectListener)) {
registerNetconfNodeConnectListener.close();
}
super.close();
}
public @Nullable NetworkElement getConnectedNeByMountpoint(String mountpoint) {
return this.connectedNetworkElementRepresentations.get(mountpoint);
}
/*--------------------------------------------
* Private functions
*/
/**
* Do all tasks necessary to move from mountpoint state connected -> connecting
*
* @param mountPointNodeName provided
*/
private void stopListenerOnNodeForConnectedState(String mountPointNodeName) {
NetworkElement ne = connectedNetworkElementRepresentations.remove(mountPointNodeName);
if (ne != null) {
ne.deregister();
}
}
private boolean isInNetworkElementRepresentations(String mountPointNodeName) {
synchronized (networkelementLock) {
return connectedNetworkElementRepresentations.contains(mountPointNodeName);
}
}
private void handleNeStartup(NodeId nodeId, NetworkElement inNe) {
LOG.debug("NE Management for {} with {}", nodeId.getValue(), inNe.getClass().getName());
NetworkElement result;
synchronized (networkelementLock) {
result = connectedNetworkElementRepresentations.put(nodeId.getValue(), inNe);
}
if (result != null) {
LOG.warn("NE list was not empty as expected, but contained {} ", result.getNodeId());
} else {
LOG.debug("refresh necon entry for {} with type {}", nodeId.getValue(), inNe.getDeviceType());
if (isOdlEventListenerHandlerEnabled()) {
getOdlEventListenerHandler().connectIndication(nodeId, inNe.getDeviceType());
}
}
if (isDeviceMonitorEnabled()) {
getDeviceMonitor().deviceConnectMasterIndication(nodeId.getValue(), inNe);
}
inNe.register();
}
private void sendUpdateNotification(NodeId nodeId, ConnectionStatus csts, NetconfNode nNode) {
LOG.debug("update ConnectedState for device :: Name : {} ConnectionStatus {}", nodeId.getValue(), csts);
if (isOdlEventListenerHandlerEnabled()) {
getOdlEventListenerHandler().updateRegistration(nodeId, ConnectionStatus.class.getSimpleName(),
csts != null ? csts.getName() : "null", nNode);
}
}
}
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