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.controllers;
19 import static org.onap.dcaegen2.collectors.datafile.model.logging.MappedDiagnosticContext.ENTRY;
20 import static org.onap.dcaegen2.collectors.datafile.model.logging.MappedDiagnosticContext.EXIT;
22 import io.swagger.annotations.Api;
23 import io.swagger.annotations.ApiOperation;
24 import io.swagger.annotations.ApiResponse;
25 import io.swagger.annotations.ApiResponses;
26 import org.onap.dcaegen2.collectors.datafile.model.logging.MappedDiagnosticContext;
27 import org.onap.dcaegen2.collectors.datafile.tasks.ScheduledTasks;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
30 import org.springframework.beans.factory.annotation.Autowired;
31 import org.springframework.http.HttpHeaders;
32 import org.springframework.http.HttpStatus;
33 import org.springframework.http.ResponseEntity;
34 import org.springframework.web.bind.annotation.GetMapping;
35 import org.springframework.web.bind.annotation.RequestHeader;
36 import org.springframework.web.bind.annotation.RestController;
37 import reactor.core.publisher.Mono;
40 * Controller to check the heartbeat of DFC.
42 * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/19/18
43 * @author <a href="mailto:henrik.b.andersson@est.tech">Henrik Andersson</a>
46 @Api(value = "HeartbeatController")
47 public class HeartbeatController {
49 private static final Logger logger = LoggerFactory.getLogger(HeartbeatController.class);
51 private final ScheduledTasks scheduledTasks;
54 public HeartbeatController(ScheduledTasks scheduledTasks) {
55 this.scheduledTasks = scheduledTasks;
59 * Checks the heartbeat of DFC.
61 * @return the heartbeat status of DFC.
63 @GetMapping("/heartbeat")
64 @ApiOperation(value = "Returns liveness of DATAFILE service")
65 @ApiResponses(value = { //
66 @ApiResponse(code = 200, message = "DATAFILE service is living"),
67 @ApiResponse(code = 401, message = "You are not authorized to view the resource"),
68 @ApiResponse(code = 403, message = "Accessing the resource you were trying to reach is forbidden"),
69 @ApiResponse(code = 404, message = "The resource you were trying to reach is not found") })
70 public Mono<ResponseEntity<String>> heartbeat(@RequestHeader HttpHeaders headers) {
71 MappedDiagnosticContext.initializeTraceContext(headers);
72 logger.info(ENTRY, "Heartbeat request");
74 StringBuilder statusString = new StringBuilder("I'm living! Status: ");
75 statusString.append("numberOfFileCollectionTasks=").append(scheduledTasks.getCurrentNumberOfTasks())
77 statusString.append("fileCacheSize=").append(scheduledTasks.publishedFilesCacheSize());
79 Mono<ResponseEntity<String>> response = Mono.just(new ResponseEntity<>(statusString.toString(), HttpStatus.OK));
80 logger.info(EXIT, "Heartbeat request");