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/*-
* ============LICENSE_START=======================================================
* org.onap.dcaegen2.restconfcollector
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright (C) 2018-2022 Huawei. 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.dcae;
import io.vavr.collection.Map;
import org.json.JSONArray;
import org.json.JSONObject;
import org.onap.dcae.common.ControllerActivationState;
import org.onap.dcae.common.EventData;
import org.onap.dcae.common.publishing.DMaaPConfigurationParser;
import org.onap.dcae.common.publishing.DMaaPEventPublisher;
import org.onap.dcae.common.publishing.EventPublisher;
import org.onap.dcae.common.publishing.PublisherConfig;
import org.onap.dcae.controller.AccessController;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.gson.GsonAutoConfiguration;
import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
import org.springframework.context.ConfigurableApplicationContext;
import org.onap.dcae.configuration.ConfigurationHandler;
import org.onap.dcae.configuration.ConfigUpdater;
import org.onap.dcae.configuration.ConfigUpdaterFactory;
import org.onap.dcae.configuration.cbs.CbsClientConfigurationProvider;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Lazy;
import java.nio.file.Paths;
import java.time.Duration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.ReentrantLock;
@SpringBootApplication(exclude = {GsonAutoConfiguration.class, SecurityAutoConfiguration.class})
public class RestConfCollector {
private static final Logger oplog = LoggerFactory.getLogger("org.onap.dcae.common.output");
private static final int DEFAULT_CONFIGURATION_FETCH_PERIOD = 5;
private static Logger log = LoggerFactory.getLogger(RestConfCollector.class);
public static LinkedBlockingQueue<EventData> fProcessingInputQueue;
private static ApplicationSettings properties;
private static ConfigurableApplicationContext context;
private static SpringApplication app;
private static ScheduledThreadPoolExecutor scheduledThreadPoolExecutor;
private static ScheduledThreadPoolExecutor scheduledThExController;
private static EventPublisher eventPublisher;
private static ConfigUpdater configUpdater;
private static ApplicationConfigurationListener applicationConfigurationListener;
private static ReentrantLock applicationLock = new ReentrantLock();
/* List of Controllers */
private static java.util.Map<String, AccessController> controllerStore = new ConcurrentHashMap<>();
public static void main(String[] args) {
applicationLock.lock();
try {
startApplication(args);
startListeningForApplicationConfigurationStoredInConsul();
} finally {
applicationLock.unlock();
}
}
private static void startApplication(String[] args) {
oplog.info("RestconfController starting");
app = new SpringApplication(RestConfCollector.class);
properties = new ApplicationSettings(args, CLIUtils::processCmdLine);
configUpdater = ConfigUpdaterFactory.create(
properties.configurationFileLocation(),
Paths.get(properties.dMaaPConfigurationFileLocation()));
scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(1);
scheduledThExController = new ScheduledThreadPoolExecutor(1);
init();
applicationConfigurationListener = startListeningForApplicationConfigurationStoredInConsul();
app.setAddCommandLineProperties(true);
context = app.run();
controllerConfig(properties);
oplog.info("RestConfController running .....");
}
private static ApplicationConfigurationListener startListeningForApplicationConfigurationStoredInConsul() {
ConfigurationHandler cbsHandler = new ConfigurationHandler(new CbsClientConfigurationProvider(), configUpdater);
ApplicationConfigurationListener applicationConfigProvider = new ApplicationConfigurationListener(Duration.ofMinutes(DEFAULT_CONFIGURATION_FETCH_PERIOD), cbsHandler);
ScheduledThreadPoolExecutor scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(1);
scheduledThreadPoolExecutor.execute(applicationConfigProvider);
return applicationConfigProvider;
}
public static void restartApplication() {
Thread thread = new Thread(() -> {
try {
applicationLock.lock();
controllerConfigCleanup();
if (context != null) {
context.close();
}
properties.reloadProperties();
init();
controllerConfig(properties);
context = SpringApplication.run(RestConfCollector.class);
configUpdater.setPaths(properties.configurationFileLocation(),
Paths.get(properties.dMaaPConfigurationFileLocation()));
applicationConfigurationListener.reload(Duration.ofMinutes(properties.configurationUpdateFrequency()));
} finally {
applicationLock.unlock();
}
});
thread.setDaemon(false);
thread.start();
}
private static void init() {
fProcessingInputQueue = new LinkedBlockingQueue<>(properties.maximumAllowedQueuedEvents());
configUpdater = ConfigUpdaterFactory.create(
properties.configurationFileLocation(),
Paths.get(properties.dMaaPConfigurationFileLocation()));
eventPublisher = new DMaaPEventPublisher(getDmapConfig());
}
private static Map<String, PublisherConfig> getDmapConfig() {
return DMaaPConfigurationParser.
parseToDomainMapping(Paths.get(properties.dMaaPConfigurationFileLocation())).get();
}
@Bean
@Lazy
public ApplicationSettings applicationSettings() {
return properties;
}
@Bean
public LinkedBlockingQueue<EventData> inputQueue() {
return fProcessingInputQueue;
}
public static java.util.Map<String, String[]> parseStreamIdToStreamHashMapping(String streamId) {
java.util.Map<String, String[]> streamidHash = new HashMap<>();
String[] list = streamId.split("\\|");
for (String aList : list) {
String domain = aList.split("=")[0];
String[] streamIdList = aList.substring(aList.indexOf('=') + 1).split(",");
streamidHash.put(domain, streamIdList);
oplog.info("adding domain " + domain + " count" + streamIdList.length);
}
return streamidHash;
}
private static void controllerConfig(ApplicationSettings properties) {
oplog.info("Policy received " + properties.rccPolicy());
if (!properties.rccPolicy().equals("")) {
JSONArray contollers = new JSONArray(properties.rccPolicy());
for (int i = 0; i < contollers.length(); i++) {
JSONObject controller = contollers.getJSONObject(i);
oplog.info(" object " + controller.toString());
AccessController acClr = new AccessController(controller,
properties);
controllerStore.put(controller.get("controller_name").toString(), acClr);
oplog.info("Activating controller " + acClr.getCfgInfo().getController_name());
acClr.activate();
}
}
}
private static void controllerConfigCleanup() {
log.info("controller ConfigCleanup!");
for (java.util.Map.Entry<String, AccessController> entry : controllerStore.entrySet()) {
AccessController acstlr = entry.getValue();
log.info("controller detail " + acstlr.getCfgInfo().getController_restapiUrl());
acstlr.clearAllPersistentConnectios();
controllerStore.remove(acstlr);
}
controllerStore.clear();
}
public static void handleEvents(EventData ev) throws Exception {
if (!fProcessingInputQueue.offer(ev)) {
throw new InterruptedException();
}
log.info("RestConfCollector.handleEvents:EVENTS has been published successfully!");
}
private static EventPublisher getEventPublisher() {
return EventPublisher.createPublisher(oplog, getDmapConfig());
}
private static class ControllerActivationTask implements Runnable
{
public ControllerActivationTask() {
}
@Override
public void run()
{
try {
Iterator<String> it1 = controllerStore.keySet().iterator();
while(it1.hasNext()){
String key = it1.next();
AccessController ctlr = controllerStore.get(key);
if(ctlr.getState() == ControllerActivationState.INIT) {
log.info("Activating controller " + key);
ctlr.activate();
}
}
} catch (Exception e) {
log.info("Activation failed");
}
}
}
}
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