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/*
* ============LICENSE_START=======================================================
* BBS-RELOCATION-CPE-AUTHENTICATION-HANDLER
* ================================================================================
* Copyright (C) 2019 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.bbs.event.processor.controllers;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import java.util.concurrent.Executors;
import org.onap.bbs.event.processor.pipelines.CpeAuthenticationPipeline;
import org.onap.bbs.event.processor.pipelines.ReRegistrationPipeline;
import org.onap.bbs.event.processor.pipelines.Scheduler;
import org.onap.bbs.event.processor.utilities.LoggingUtil;
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.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@RestController
@Api(value = "BbsEventProcessorController", description = "Manage bbs-event-processor microService")
public class BbsEventProcessorController {
private static final Logger LOGGER = LoggerFactory.getLogger(BbsEventProcessorController.class);
private ReRegistrationPipeline reRegistrationPipeline;
private CpeAuthenticationPipeline cpeAuthenticationPipeline;
private Scheduler scheduler;
/**
* Constructs BBE event processor REST controller.
* @param reRegistrationPipeline processing pipeline for polling DMaaP for PNF re-registration events
* @param cpeAuthenticationPipeline processing pipeline for polling DMaaP for CPE authentication events
* @param scheduler application scheduler
*/
@Autowired
public BbsEventProcessorController(ReRegistrationPipeline reRegistrationPipeline,
CpeAuthenticationPipeline cpeAuthenticationPipeline,
Scheduler scheduler) {
this.reRegistrationPipeline = reRegistrationPipeline;
this.cpeAuthenticationPipeline = cpeAuthenticationPipeline;
this.scheduler = scheduler;
}
/**
* Responds to health-check heartbeats.
* @return Proper HTTP response based on application health
*/
@GetMapping("heartbeat")
@ApiOperation(value = "Returns liveness of bbs-event-processor microService")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "bbs-event-processor microService is alive"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found")})
public Mono<ResponseEntity<String>> handleHeartBeat() {
LOGGER.debug("bbs-event-processor has received a heartbeat request");
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("bbs-event-processor is alive\n", HttpStatus.OK))
);
}
/**
* Polls DMaaP for PNF re-registration events just once.
* @return Proper HTTP response based on request submission result
*/
@PostMapping("poll-reregistration-events")
@ApiOperation(value = "Returns result of request submission. PNF re-registration polling will occur asynchronously")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Polling Re-registration events task submitted successfully"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found")})
public Mono<ResponseEntity<String>> handleReRegistrationRestCall() {
LOGGER.debug("bbs-event-processor has received a re-registration handling request");
Executors.newSingleThreadExecutor().submit(() -> reRegistrationPipeline.processPnfReRegistrationEvents());
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Request submitted\n", HttpStatus.OK))
);
}
/**
* Polls DMaaP for CPE authentication events just once.
* @return Proper HTTP response based on request submission result
*/
@PostMapping("poll-cpe-authentication-events")
@ApiOperation(value = "Returns result of request submission. CPE authentication polling will occur asynchronously")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "CPE authentication task submitted successfully"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found")})
public Mono<ResponseEntity<String>> handleCpeAuthenticationRestCall() {
LOGGER.debug("bbs-event-processor has received a cpe-authentication handling request");
Executors.newSingleThreadExecutor().submit(() -> cpeAuthenticationPipeline.processPnfCpeAuthenticationEvents());
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Request submitted\n", HttpStatus.OK))
);
}
/**
* Reschedules DMaaP polling tasks.
* @return Proper HTTP response based on rescheduling result
*/
@PostMapping("start-tasks")
@ApiOperation(value = "Returns result of request to start microservice tasks")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Tasks were successfully started"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found"),
@ApiResponse(code = 406, message = "Task initiation failed. Check logs")})
public Mono<ResponseEntity<String>> reScheduleTasks() {
LOGGER.trace("bbs-event-processor has received a request to reschedule all running tasks");
if (scheduler.reScheduleProcessingTasks()) {
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Initiation of tasks was successful\n", HttpStatus.OK))
);
} else {
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Initiation of tasks failed\n", HttpStatus.NOT_ACCEPTABLE))
);
}
}
/**
* Cancels DMaaP polling tasks.
* @return Proper HTTP response based on cancellation result
*/
@PostMapping("cancel-tasks")
@ApiOperation(value = "Returns result of request to cancel running microservice tasks")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Tasks were successfully cancelled"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found"),
@ApiResponse(code = 406, message = "Cancellation failed. Check logs")})
public Mono<ResponseEntity<String>> cancelTasks() {
LOGGER.debug("bbs-event-processor has received a request to cancel all running tasks");
if (scheduler.cancelScheduledProcessingTasks()) {
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Cancellation was successful\n", HttpStatus.OK))
);
} else {
return Mono.defer(() ->
Mono.just(new ResponseEntity<>("Cancellation failed\n", HttpStatus.NOT_ACCEPTABLE))
);
}
}
/**
* Change logging level for BBS code.
* @param level new logging level
* @return Proper HTTP response based on change logging level result
*/
@PostMapping("logging/{level}")
@ApiOperation(value = "Returns result of request to change application logging level")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Application logging level was successfully changed"),
@ApiResponse(code = 401, message = "Not authorized to view the resource"),
@ApiResponse(code = 403, message = "Resource access is forbidden"),
@ApiResponse(code = 404, message = "Resource is not found"),
@ApiResponse(code = 406, message = "Application logging level change failure. Check logs")})
public Mono<ResponseEntity<String>> changeLoggingLevel(@PathVariable String level) {
return Mono.defer(() -> {
if (LoggingUtil.changeLoggingLevel(level)) {
LOGGER.info("Changed logging level to {}", level);
return Mono.just(new ResponseEntity<>("Changed BBS event processor logging level\n",
HttpStatus.OK));
} else {
return Mono.just(new ResponseEntity<>("Unacceptable logging level\n",
HttpStatus.NOT_ACCEPTABLE));
}
}
);
}
}
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