2 * ============LICENSE_START======================================================================
3 * Copyright (C) 2018 NOKIA Intellectual Property, 2018 Nordix Foundation. All rights reserved.
4 * ===============================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
6 * in compliance with the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software distributed under the License
11 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12 * or implied. See the License for the specific language governing permissions and limitations under
14 * ============LICENSE_END========================================================================
17 package org.onap.dcaegen2.collectors.datafile.configuration;
19 import java.util.ArrayList;
20 import java.util.List;
21 import java.util.concurrent.ScheduledFuture;
23 import javax.annotation.PostConstruct;
25 import org.onap.dcaegen2.collectors.datafile.tasks.ScheduledTasks;
26 import org.springframework.beans.factory.annotation.Autowired;
27 import org.springframework.context.annotation.Configuration;
28 import org.springframework.http.HttpStatus;
29 import org.springframework.http.ResponseEntity;
30 import org.springframework.scheduling.TaskScheduler;
31 import org.springframework.scheduling.annotation.EnableScheduling;
33 import io.swagger.annotations.ApiOperation;
34 import reactor.core.publisher.Mono;
37 * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 6/13/18
41 public class SchedulerConfig extends DatafileAppConfig {
43 private static final int SCHEDULING_DELAY = 2000;
44 private static volatile List<ScheduledFuture> scheduledFutureList = new ArrayList<ScheduledFuture>();
46 private final TaskScheduler taskScheduler;
47 private final ScheduledTasks scheduledTask;
50 public SchedulerConfig(TaskScheduler taskScheduler, ScheduledTasks scheduledTask) {
51 this.taskScheduler = taskScheduler;
52 this.scheduledTask = scheduledTask;
56 * Function which have to stop tasks execution.
58 * @return response entity about status of cancellation operation
60 @ApiOperation(value = "Get response on stopping task execution")
61 public synchronized Mono<ResponseEntity<String>> getResponseFromCancellationOfTasks() {
62 scheduledFutureList.forEach(x -> x.cancel(false));
63 scheduledFutureList.clear();
64 return Mono.defer(() -> Mono
65 .just(new ResponseEntity<>("Datafile Service has already been stopped!", HttpStatus.CREATED)));
69 * Function for starting scheduling Datafile workflow.
71 * @return status of operation execution: true - started, false - not started
74 @ApiOperation(value = "Start task if possible")
75 public synchronized boolean tryToStartTask() {
76 if (scheduledFutureList.isEmpty()) {
77 scheduledFutureList.add(taskScheduler.scheduleWithFixedDelay(scheduledTask::scheduleMainDatafileEventTask,