1 /*******************************************************************************
2 * ============LICENSE_START========================================================================
3 * ONAP : ccsdk feature sdnr wt
4 * =================================================================================================
5 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
6 * =================================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software distributed under the License
13 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
14 * or implied. See the License for the specific language governing permissions and limitations under
16 * ============LICENSE_END==========================================================================
17 ******************************************************************************/
19 * (c) 2017 highstreet technologies GmbH
22 package org.onap.ccsdk.features.sdnr.wt.devicemanager.devicemonitor.impl;
24 import java.util.Enumeration;
25 import java.util.Optional;
26 import java.util.concurrent.ConcurrentHashMap;
27 import java.util.concurrent.Executors;
28 import java.util.concurrent.ScheduledExecutorService;
30 import org.onap.ccsdk.features.sdnr.wt.common.configuration.ConfigurationFileRepresentation;
31 import org.onap.ccsdk.features.sdnr.wt.common.configuration.filechange.IConfigChangedListener;
32 import org.onap.ccsdk.features.sdnr.wt.devicemanager.DeviceMonitoredNe;
33 import org.onap.ccsdk.features.sdnr.wt.devicemanager.NetworkElement;
34 import org.onap.ccsdk.features.sdnr.wt.devicemanager.devicemonitor.impl.config.DmConfig;
35 import org.onap.ccsdk.features.sdnr.wt.devicemanager.impl.handler.ODLEventListenerHandler;
36 import org.opendaylight.mdsal.binding.api.DataBroker;
37 import org.slf4j.Logger;
38 import org.slf4j.LoggerFactory;
41 * Implementation of concept "Active monitoring" of a device.<br>
43 * For each existing mountpoint a task runs with 120s cycle time. Every 120 seconds the check actions are performed.
44 * The request is handled by the NETCONF layer with a (default)configured time-out of 60 seconds.<br>
45 * Generated alarms, by the object/node "SDN-Controller" are (enum DeviceMonitorProblems):<br>
46 * - notConnected(InternalSeverity.Warning)<br>
47 * - noConnectionMediator(InternalSeverity.Minor)<br>
48 * - noConnectionNe(InternalSeverity.Critical)<br>
50 * 1. Mountpoint does not exist<br>
51 * If the mountpoint does not exists there are no related current alarms in the database.<br>
53 * 2. Created mountpoint with state "Connecting" or "UnableToConnect"<br>
54 * If the Mountpoint is created and connection status is "Connecting" or "UnableToConnect".<br>
55 * - After about 2..4 Minutes ... raise alarm "notConnected" with severity warning<br>
57 * 3. Created mountpoint with state "Connection"<br>
58 * There are two monitor activities.<br>
59 * 3a. Check of Mediator connection by requesting (typical) cached data.<br>
60 * - After about 60 seconds raise alarm: connection-loss-mediator with severity minor<br>
61 * - Request from Mediator: network-element<br>
63 * 3b. Check connection to NEby requesting (typical) non-cached data.<br>
64 * - Only if AirInterface available. The first one is used.<br>
65 * - Requested are the currentAlarms<br>
66 * - After about 60 seconds raise alarm: connection-loss-network-element with severity critical<br>
71 public class DeviceMonitorImpl implements DeviceMonitor, IConfigChangedListener {
73 private static final Logger LOG = LoggerFactory.getLogger(DeviceMonitorImpl.class);
75 private final ConcurrentHashMap<String, DeviceMonitorTask> queue;
76 private final ScheduledExecutorService scheduler;
77 private final ODLEventListenerHandler odlEventListener;
78 @SuppressWarnings("unused")
79 private final DataBroker dataBroker; //Future usage
80 private final DmConfig dmConfig;
81 private final DeviceMonitoredNe dummyNe;
83 /*-------------------------------------------------------------
84 * Construction/ destruction of service
88 * Basic implementation of devicemonitoring
89 * @param odlEventListener as destination for problems
91 public DeviceMonitorImpl(DataBroker dataBroker, ODLEventListenerHandler odlEventListener, ConfigurationFileRepresentation htconfig) {
92 LOG.info("Construct {}", this.getClass().getSimpleName());
94 this.odlEventListener = odlEventListener;
95 this.dataBroker = dataBroker;
96 this.dummyNe = getDummyNe();
98 htconfig.registerConfigChangedListener(this);
99 this.dmConfig = new DmConfig(htconfig);
100 setDmConfig(dmConfig);
102 this.queue = new ConcurrentHashMap<>();
103 this.scheduler = Executors.newScheduledThreadPool(10);
107 * Stop the service. Stop all running monitoring tasks.
110 synchronized public void close() {
111 LOG.info("Close {}", this.getClass().getSimpleName());
113 Enumeration<String> e = queue.keys();
114 while (e.hasMoreElements()) {
115 deviceDisconnectIndication(e.nextElement());
118 scheduler.shutdown();
122 public void onConfigChanged() {
123 setDmConfig(dmConfig);
126 private void setDmConfig(DmConfig dmConfig) {
127 for (DeviceMonitorProblems problem : DeviceMonitorProblems.values()) {
128 problem.setSeverity(dmConfig.getSeverity(problem));
132 /*-------------------------------------------------------------
133 * Start/ stop/ update service for Mountpoint
137 * Notify of device state changes to "connected" for slave nodes
138 * @param mountPointNodeName name of mount point
141 synchronized public void deviceConnectSlaveIndication(String mountPointNodeName) {
142 deviceConnectMasterIndication(mountPointNodeName, (DeviceMonitoredNe)null);
146 public void deviceConnectMasterIndication(String mountPointNodeName, NetworkElement networkElement) {
147 Optional<DeviceMonitoredNe> monitoredNe = networkElement.getService(DeviceMonitoredNe.class);
148 deviceConnectMasterIndication(mountPointNodeName, monitoredNe.isPresent() ? monitoredNe.get() : dummyNe);
152 * Notify of device state changes to "connected"
153 * @param mountPointNodeName name of mount point
154 * @param ne to monitor
157 synchronized public void deviceConnectMasterIndication(String mountPointNodeName, DeviceMonitoredNe ne) {
159 LOG.debug("ne changes to connected state {}",mountPointNodeName);
160 createMonitoringTask(mountPointNodeName);
161 if (queue.containsKey(mountPointNodeName)) {
162 DeviceMonitorTask task = queue.get(mountPointNodeName);
163 task.deviceConnectIndication(ne);
165 LOG.warn("Monitoring task not in queue: {} {} {}", mountPointNodeName, mountPointNodeName.hashCode(), queue.size());
170 * Notify of device state change to "disconnected"
171 * Mount point supervision
172 * @param mountPointNodeName to deregister
175 synchronized public void deviceDisconnectIndication(String mountPointNodeName) {
177 LOG.debug("State changes to not connected state {}",mountPointNodeName);
178 createMonitoringTask(mountPointNodeName);
179 if (queue.containsKey(mountPointNodeName)) {
180 DeviceMonitorTask task = queue.get(mountPointNodeName);
181 task.deviceDisconnectIndication();
183 LOG.warn("Monitoring task not in queue: {} {} {}", mountPointNodeName, mountPointNodeName.hashCode(), queue.size());
188 * removeMountpointIndication deregisters a mountpoint for registration services
189 * @param mountPointNodeName to deregister
192 synchronized public void removeMountpointIndication(String mountPointNodeName) {
194 if (queue.containsKey(mountPointNodeName)) {
195 DeviceMonitorTask task = queue.get(mountPointNodeName);
197 queue.remove(mountPointNodeName);
199 task.removeMountpointIndication();
200 LOG.debug("Task stopped: {}", mountPointNodeName);
202 LOG.warn("Task not in queue: {}", mountPointNodeName);
207 * Referesh database by raising all alarms again.
210 public void refreshAlarmsInDb() {
211 synchronized(queue) {
212 for (DeviceMonitorTask task : queue.values()) {
213 task.refreshAlarms();
218 /*-------------------------------------------------------------
223 * createMountpoint registers a new mountpoint monitoring service
224 * @param mountPointNodeName name of mountpoint
226 synchronized private DeviceMonitorTask createMonitoringTask(String mountPointNodeName) {
228 DeviceMonitorTask task;
229 LOG.debug("Register for monitoring {} {}",mountPointNodeName, mountPointNodeName.hashCode());
231 if (queue.containsKey(mountPointNodeName)) {
232 LOG.info("Monitoring task exists");
233 task = queue.get(mountPointNodeName);
235 LOG.info("Do start of DeviceMonitor task");
236 //Runnable task = new PerformanceManagerTask(queue, databaseService);
237 task = new DeviceMonitorTask(mountPointNodeName, this.odlEventListener);
238 queue.put(mountPointNodeName, task);
239 task.start(scheduler);
245 private static DeviceMonitoredNe getDummyNe() {
246 return new DeviceMonitoredNe() {
249 public void prepareCheck() {
254 public boolean checkIfConnectionToMediatorIsOk() {
259 public boolean checkIfConnectionToNeIsOk() {