1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*-
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA 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.dcaegen2.services.prh.controllers;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ScheduledFuture;
import org.onap.dcaegen2.services.prh.configuration.PrhAppConfig;
import org.onap.dcaegen2.services.prh.tasks.ScheduledTasks;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/5/18
*/
@RestController
@Component
public class ScheduleController {
private static final Logger logger = LoggerFactory.getLogger(PrhAppConfig.class);
private static final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("HH:mm:ss");
private static final int SCHEDULING_DELAY = 20000;
private static volatile List<ScheduledFuture> scheduledFutureList = new ArrayList<>();
private final TaskScheduler taskScheduler;
private final ScheduledTasks scheduledTask;
@Autowired
public ScheduleController(TaskScheduler taskScheduler, ScheduledTasks scheduledTask) {
this.taskScheduler = taskScheduler;
this.scheduledTask = scheduledTask;
}
@RequestMapping(value = "start", method = RequestMethod.GET)
public Mono<ResponseEntity<String>> startTasks() {
logDebug("Starting scheduling worker request on on thread={} , time={} ");
return Mono.fromSupplier(this::tryToStartTask).map(this::createStartTaskResponse);
}
@RequestMapping(value = "stopPrh", method = RequestMethod.GET)
public Mono<ResponseEntity<String>> stopTask() {
logDebug("Stopping scheduling worker request on on thread={} , time={} ");
return getResponseFromCancellationOfTasks();
}
private synchronized Mono<ResponseEntity<String>> getResponseFromCancellationOfTasks() {
scheduledFutureList.forEach(x -> x.cancel(false));
scheduledFutureList.clear();
return Mono.defer(() -> {
logDebug("Sending success response on stopping task execution thread={} , time={} ");
return Mono.just(new ResponseEntity<>("PRH Service has already been stopped!", HttpStatus.CREATED));
});
}
private synchronized boolean tryToStartTask() {
if (scheduledFutureList.isEmpty()) {
scheduledFutureList.add(taskScheduler
.scheduleWithFixedDelay(scheduledTask::scheduleMainPrhEventTask, SCHEDULING_DELAY));
return true;
} else {
return false;
}
}
private ResponseEntity<String> createStartTaskResponse(boolean wasScheduled) {
if (wasScheduled) {
logDebug("Sending success response on starting task execution thread={} , time={} ");
return new ResponseEntity<>("PRH Service has been started!", HttpStatus.CREATED);
} else {
logDebug("Sending error response on starting task execution thread={} , time={} ");
return new ResponseEntity<>("PRH Service is still running!", HttpStatus.NOT_ACCEPTABLE);
}
}
private static void logDebug(String message) {
if (logger.isDebugEnabled()) {
logger.debug(message,
Thread.currentThread().getName(),
dateTimeFormatter.format(
LocalDateTime.now()));
}
}
}
|