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/**
* Copyright 2017-2023 Open Text
*
* The only warranties for products and services of Open Text and
* its affiliates and licensors (“Open Text”) are as may be set forth
* in the express warranty statements accompanying such products and services.
* Nothing herein should be construed as constituting an additional warranty.
* Open Text shall not be liable for technical or editorial errors or
* omissions contained herein. The information contained herein is subject
* to change without notice.
*
* Except as specifically indicated otherwise, this document contains
* confidential information and a valid license is required for possession,
* use or copying. If this work is provided to the U.S. Government,
* consistent with FAR 12.211 and 12.212, Commercial Computer Software,
* Computer Software Documentation, and Technical Data for Commercial Items are
* licensed to the U.S. Government under vendor's standard commercial license.
*
* 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.
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package com.hp.octane.integrations.services.events;
import com.hp.octane.integrations.OctaneSDK;
import com.hp.octane.integrations.dto.DTOFactory;
import com.hp.octane.integrations.dto.connectivity.HttpMethod;
import com.hp.octane.integrations.dto.connectivity.OctaneRequest;
import com.hp.octane.integrations.dto.connectivity.OctaneResponse;
import com.hp.octane.integrations.dto.events.CIEvent;
import com.hp.octane.integrations.dto.events.CIEventType;
import com.hp.octane.integrations.dto.events.CIEventsList;
import com.hp.octane.integrations.dto.events.MultiBranchType;
import com.hp.octane.integrations.dto.general.CIServerInfo;
import com.hp.octane.integrations.exceptions.PermanentException;
import com.hp.octane.integrations.exceptions.RequestTimeoutException;
import com.hp.octane.integrations.exceptions.TemporaryException;
import com.hp.octane.integrations.services.WorkerPreflight;
import com.hp.octane.integrations.services.configuration.ConfigurationService;
import com.hp.octane.integrations.services.configurationparameters.factory.ConfigurationParameterFactory;
import com.hp.octane.integrations.services.rest.RestService;
import com.hp.octane.integrations.utils.CIPluginSDKUtils;
import org.apache.http.HttpStatus;
import org.apache.http.entity.ContentType;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.Marker;
import org.apache.logging.log4j.MarkerManager;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import static com.hp.octane.integrations.services.rest.RestService.*;
/**
* EventsService implementation
* Handled by :
* com.hp.mqm.analytics.common.resources.CIAnalyticsCommonSSAResource#handleEvents
* com.hp.mqm.analytics.devops.insights.services.liveview.LiveSnapshotsServiceOnEventImpl#processEvent
*/
final class EventsServiceImpl implements EventsService {
private static final Logger logger = LogManager.getLogger(EventsServiceImpl.class);
Marker eventsMarker = MarkerManager.getMarker("EVENTS");
private static final DTOFactory dtoFactory = DTOFactory.getInstance();
private final ExecutorService eventsPushExecutor = Executors.newSingleThreadExecutor(new EventsServiceWorkerThreadFactory());
private final OctaneSDK.SDKServicesConfigurer configurer;
private final RestService restService;
private final ConfigurationService configurationService;
private final List events = Collections.synchronizedList(new LinkedList<>());
private final int EVENTS_CHUNK_SIZE = System.getProperty("octane.sdk.events.chunk-size") != null ? Integer.parseInt(System.getProperty("octane.sdk.events.chunk-size")) : 10;
private final int MAX_EVENTS_TO_KEEP = System.getProperty("octane.sdk.events.max-to-keep") != null ? Integer.parseInt(System.getProperty("octane.sdk.events.max-to-keep")) : 3000;
private final long TEMPORARY_FAILURE_PAUSE = System.getProperty("octane.sdk.events.temp-fail-pause") != null ? Integer.parseInt(System.getProperty("octane.sdk.events.temp-fail-pause")) : 15000;
//Metrics
private long requestTimeoutCount = 0;
private long lastRequestTimeoutTime = 0;
private final WorkerPreflight workerPreflight;
EventsServiceImpl(OctaneSDK.SDKServicesConfigurer configurer, RestService restService, ConfigurationService configurationService) {
if (configurer == null || configurer.pluginServices == null || configurer.octaneConfiguration == null) {
throw new IllegalArgumentException("invalid configurer");
}
if (restService == null) {
throw new IllegalArgumentException("rest service MUST NOT be null");
}
if (configurationService == null) {
throw new IllegalArgumentException("configuration service MUST NOT be null");
}
this.configurer = configurer;
this.restService = restService;
this.configurationService = configurationService;
this.workerPreflight = new WorkerPreflight(this, configurationService, logger);
workerPreflight.setWaitAfterConnection(false);
logger.info(configurer.octaneConfiguration.getLocationForLog() + "starting background worker...");
eventsPushExecutor.execute(this::worker);
logger.info(configurer.octaneConfiguration.getLocationForLog() + "initialized SUCCESSFULLY");
}
@Override
public void publishEvent(CIEvent event) {
if (event == null) {
throw new IllegalArgumentException("event MUST NOT be null");
}
if (this.configurer.octaneConfiguration.isDisabled()) {
return;
}
if (ConfigurationParameterFactory.octaneRootsCacheAllowed(configurer.octaneConfiguration)) {
Set parents = new HashSet<>();
CIPluginSDKUtils.getRootJobCiIds(event.getProject(), event.getCauses(), parents);
if (!configurationService.isRelevantForOctane(parents)) {
if (CIEventType.STARTED.equals(event.getEventType())) {
String eventStr = event.getProject() + ":" + event.getBuildCiId() + ":" + event.getEventType() + ", parents : " + parents;
logger.info(configurer.octaneConfiguration.getLocationForLog() + "Event is ignored : " + eventStr);
}
return;
}
}
events.add(event);
int eventsSize = events.size();
if (eventsSize > MAX_EVENTS_TO_KEEP) {
logger.warn(configurer.octaneConfiguration.getLocationForLog() + "reached MAX amount of events to keep in queue (max - " + MAX_EVENTS_TO_KEEP + ", found - " + eventsSize + "), capping the head");
while (events.size() > MAX_EVENTS_TO_KEEP) { // in this case we need to read the real-time size of the list
events.remove(0);
}
}
workerPreflight.itemAddedToQueue();
}
@Override
public long getQueueSize() {
return events.size();
}
@Override
public void clearQueue() {
events.clear();
}
@Override
public void shutdown() {
eventsPushExecutor.shutdown();
}
@Override
public boolean isShutdown() {
return eventsPushExecutor.isShutdown();
}
private void removeEvents(List eventsToRemove) {
if (eventsToRemove != null && !eventsToRemove.isEmpty()) {
events.removeAll(eventsToRemove);
}
}
// infallible everlasting worker function
private void worker() {
while (!eventsPushExecutor.isShutdown()) {
if(!workerPreflight.preflight()){
continue;
}
// build events list to be sent
List eventsChunk = null;
CIEventsList eventsSnapshot;
try {
eventsChunk = getEventsChunk();
CIServerInfo serverInfo = configurer.pluginServices.getServerInfo();
serverInfo.setInstanceId(configurer.octaneConfiguration.getInstanceId());
eventsSnapshot = dtoFactory.newDTO(CIEventsList.class)
.setServer(serverInfo)
.setEvents(eventsChunk);
} catch (Throwable t) {
logger.error(configurer.octaneConfiguration.getLocationForLog() +"failed to serialize chunk of " + (eventsChunk != null ? eventsChunk.size() : "[NULL]") + " events, dropping them off (if any) and continue");
removeEvents(eventsChunk);
continue;
}
// send the data to Octane
try {
String correlationId = CIPluginSDKUtils.getNextCorrelationId();
logEventsToBeSent(eventsSnapshot, correlationId);
sendEventsData(eventsSnapshot, correlationId);
removeEvents(eventsChunk);
if (events.size() > 0) {
logger.info(configurer.octaneConfiguration.getLocationForLog() + "left to send " + events.size() + " events");
}
} catch (RequestTimeoutException rte){
requestTimeoutCount++;
lastRequestTimeoutTime = System.currentTimeMillis();
logger.info(configurer.octaneConfiguration.getLocationForLog() + rte.getMessage());
CIPluginSDKUtils.doWait(TEMPORARY_FAILURE_PAUSE);
} catch (TemporaryException tqie) {
logger.error(configurer.octaneConfiguration.getLocationForLog() + "failed to send events with temporary error, breathing " + TEMPORARY_FAILURE_PAUSE + "ms and continue", tqie);
CIPluginSDKUtils.doWait(TEMPORARY_FAILURE_PAUSE);
} catch (PermanentException pqie) {
logger.error(configurer.octaneConfiguration.getLocationForLog() + "failed to send events with permanent error, dropping this chunk and continue", pqie);
removeEvents(eventsChunk);
} catch (Throwable t) {
logger.error(configurer.octaneConfiguration.getLocationForLog() + "failed to send events with unexpected error, dropping this chunk and continue", t);
removeEvents(eventsChunk);
}
}
}
private List getEventsChunk() {
int maxInBulk = ConfigurationParameterFactory.isSendEventsInBulk(configurer.octaneConfiguration) ? EVENTS_CHUNK_SIZE : 1;
List eventsChunk = new ArrayList<>(events.subList(0, Math.min(events.size(), maxInBulk)));
// - octane generate multibranch child pipeline on the fly
// - multibranch child may trigger another job
// - if multibranch child pipeline still didn't created, and multibranch child start event comes along with
// downstream job start event, the latest event is thrown in PipelinesServiceImpl#shouldProcessEvent.
// So first run of pipeline might be partial (without structure,tests,commits)
// - if in iteration we encounter multibranch child start event - no other event is allowed to be after it and will be pushed in next bulk
if (eventsChunk.size() > 1) {
for (int i = 0; i < eventsChunk.size(); i++) {
CIEvent ciEvent = eventsChunk.get(i);
if (CIEventType.STARTED.equals(ciEvent.getEventType()) && MultiBranchType.MULTI_BRANCH_CHILD.equals(ciEvent.getMultiBranchType()) && i + 1 < eventsChunk.size()) {
eventsChunk = new ArrayList<>(eventsChunk.subList(0, i + 1));
break;
}
}
}
return eventsChunk;
}
private void logEventsToBeSent(CIEventsList eventsList, String correlationId) {
try {
List eventsStringified = new LinkedList<>();
for (CIEvent event : eventsList.getEvents()) {
String str = event.getProject() + ":" + event.getBuildCiId() + ":" + event.getEventType();
if (CIEventType.FINISHED.equals(event.getEventType()) && event.getTestResultExpected() != null && event.getTestResultExpected() == true) {
str += "(tests=true)";
}
eventsStringified.add(str);
}
logger.info(configurer.octaneConfiguration.getLocationForLog() + "sending [" + String.join(", ", eventsStringified) + "] event/s. Correlation ID - " + correlationId);
if (ConfigurationParameterFactory.isLogEvents(configurer.octaneConfiguration)) {
for (CIEvent event : eventsList.getEvents()) {
String str = String.format("%s%s:%s:%s %s", configurer.octaneConfiguration.getLocationForLog(), event.getProject(), event.getBuildCiId(),
event.getEventType(), dtoFactory.dtoToJson(event));
logger.info(eventsMarker, str);
}
}
} catch (Exception e) {
logger.error(configurer.octaneConfiguration.getLocationForLog() + "failed to log events to be sent", e);
}
}
private void sendEventsData(CIEventsList eventsList, String correlationId) {
Map headers = new HashMap<>();
headers.put(CONTENT_TYPE_HEADER, ContentType.APPLICATION_JSON.getMimeType());
headers.put(CORRELATION_ID_HEADER, correlationId);
OctaneRequest octaneRequest = dtoFactory.newDTO(OctaneRequest.class)
.setMethod(HttpMethod.PUT)
.setUrl(configurer.octaneConfiguration.getUrl() +
SHARED_SPACE_INTERNAL_API_PATH_PART + configurer.octaneConfiguration.getSharedSpace() +
ANALYTICS_CI_PATH_PART + "events?ci_server_identity=" + configurer.octaneConfiguration.getInstanceId())
.setHeaders(headers)
.setTimeoutSec(60)
.setBody(dtoFactory.dtoToJsonStream(eventsList));
OctaneResponse octaneResponse;
try {
octaneResponse = restService.obtainOctaneRestClient().execute(octaneRequest);
} catch (InterruptedIOException ie) {
String msg = "!!!!!!!!!!!!!!!!!!! request timeout" + ie.getClass().getCanonicalName() + " - " + ie.getMessage();
throw new RequestTimeoutException(msg);
} catch (IOException ioe) {
throw new TemporaryException(ioe);
}
if (octaneResponse.getStatus() == HttpStatus.SC_SERVICE_UNAVAILABLE || octaneResponse.getStatus() == HttpStatus.SC_BAD_GATEWAY) {
throw new TemporaryException("PUT events failed with status " + octaneResponse.getStatus());
} else if (octaneResponse.getStatus() == HttpStatus.SC_UNAUTHORIZED || octaneResponse.getStatus() == HttpStatus.SC_FORBIDDEN) {
CIPluginSDKUtils.doWait(30000);
throw new PermanentException("PUT events failed with status " + octaneResponse.getStatus());
} else if (octaneResponse.getStatus() != HttpStatus.SC_OK) {
if (CIPluginSDKUtils.isServiceTemporaryUnavailable(octaneResponse.getBody())) {
throw new TemporaryException("Saas service is temporary unavailable.");
}
throw new PermanentException("PUT events failed with status " + octaneResponse.getStatus());
}
}
@Override
public Map getMetrics() {
Map map = new LinkedHashMap<>();
map.put("queueSize", this.getQueueSize());
map.put("requestTimeoutCount", this.requestTimeoutCount);
if (lastRequestTimeoutTime > 0) {
map.put("lastRequestTimeoutTime", new Date(lastRequestTimeoutTime));
}
workerPreflight.addMetrics(map);
return map;
}
private static final class EventsServiceWorkerThreadFactory implements ThreadFactory {
@Override
public Thread newThread(Runnable runnable) {
Thread result = new Thread(runnable);
result.setName("EventsServiceWorker-" + result.getId());
result.setDaemon(true);
return result;
}
}
}
