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/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* Copyright (C) 2017-2018 AT&T 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.dcae;
import io.vavr.collection.Map;
import java.nio.file.Paths;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.json.JSONObject;
import org.onap.dcae.common.EventProcessor;
import org.onap.dcae.common.EventSender;
import org.onap.dcae.common.publishing.DMaaPConfigurationParser;
import org.onap.dcae.common.publishing.EventPublisher;
import org.onap.dcae.common.publishing.PublisherConfig;
import org.onap.dcae.controller.ConfigLoader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
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.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Lazy;
@SpringBootApplication(exclude = {GsonAutoConfiguration.class, SecurityAutoConfiguration.class})
public class VesApplication {
private static final Logger metriclog = LoggerFactory.getLogger("com.att.ecomp.metrics");
private static final Logger incomingRequestsLogger = LoggerFactory.getLogger("org.onap.dcae.common.input");
private static final Logger oplog = LoggerFactory.getLogger("org.onap.dcae.common.output");
private static final Logger errorLog = LoggerFactory.getLogger("org.onap.dcae.common.error");
private static final int MAX_THREADS = 20;
public static LinkedBlockingQueue<JSONObject> fProcessingInputQueue;
private static ApplicationSettings properties;
private static ConfigurableApplicationContext context;
private static ConfigLoader configLoader;
private static EventProcessor eventProcessor;
private static ScheduledThreadPoolExecutor scheduledThreadPoolExecutor;
private static SpringApplication app;
private static EventPublisher eventPublisher;
private static ScheduledFuture<?> scheduleFeatures;
private static ExecutorService executor;
public static void main(String[] args) {
app = new SpringApplication(VesApplication.class);
properties = new ApplicationSettings(args, CLIUtils::processCmdLine);
scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(1);
init();
app.setAddCommandLineProperties(true);
context = app.run();
configLoader.updateConfig();
}
public static void restartApplication() {
Thread thread = new Thread(() -> {
context.close();
properties.reloadProperties();
scheduleFeatures.cancel(true);
init();
context = SpringApplication.run(VesApplication.class);
});
thread.setDaemon(false);
thread.start();
}
private static void init() {
fProcessingInputQueue = new LinkedBlockingQueue<>(properties.maximumAllowedQueuedEvents());
createConfigLoader();
createSchedulePoolExecutor();
createExecutors();
}
private static void createExecutors() {
eventPublisher = EventPublisher.createPublisher(oplog, getDmapConfig());
eventProcessor = new EventProcessor(new EventSender(eventPublisher, properties));
executor = Executors.newFixedThreadPool(MAX_THREADS);
for (int i = 0; i < MAX_THREADS; ++i) {
executor.execute(eventProcessor);
}
}
private static void createSchedulePoolExecutor() {
scheduleFeatures = scheduledThreadPoolExecutor.scheduleAtFixedRate(configLoader::updateConfig,
properties.configurationUpdateFrequency(),
properties.configurationUpdateFrequency(),
TimeUnit.MINUTES);
}
private static void createConfigLoader() {
configLoader = ConfigLoader.create(getEventPublisher()::reconfigure,
Paths.get(properties.dMaaPConfigurationFileLocation()),
properties.configurationFileLocation());
}
private static EventPublisher getEventPublisher() {
return EventPublisher.createPublisher(oplog, DMaaPConfigurationParser
.parseToDomainMapping(Paths.get(properties.dMaaPConfigurationFileLocation())).get());
}
private static Map<String, PublisherConfig> getDmapConfig() {
return DMaaPConfigurationParser
.parseToDomainMapping(Paths.get(properties.dMaaPConfigurationFileLocation())).get();
}
@Bean
@Lazy
public ApplicationSettings applicationSettings() {
return properties;
}
@Bean
@Qualifier("incomingRequestsLogger")
public Logger incomingRequestsLogger() {
return incomingRequestsLogger;
}
@Bean
@Qualifier("metricsLog")
public Logger incomingRequestsMetricsLogger() {
return metriclog;
}
@Bean
@Qualifier("errorLog")
public Logger errorLogger() {
return errorLog;
}
@Bean
public LinkedBlockingQueue<JSONObject> inputQueue() {
return fProcessingInputQueue;
}
}
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