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/*-
* ============LICENSE_START=======================================================
* org.onap.integration
* ================================================================================
* 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.pnfsimulator.rest;
import static org.onap.pnfsimulator.message.MessageConstants.SIMULATOR_PARAMS_CONTAINER;
import static org.onap.pnfsimulator.rest.util.ResponseBuilder.MESSAGE;
import static org.onap.pnfsimulator.rest.util.ResponseBuilder.REMAINING_TIME;
import static org.onap.pnfsimulator.rest.util.ResponseBuilder.SIMULATOR_STATUS;
import static org.onap.pnfsimulator.rest.util.ResponseBuilder.TIMESTAMP;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONException;
import org.json.JSONObject;
import org.onap.pnfsimulator.message.MessageConstants;
import org.onap.pnfsimulator.message.MessageProvider;
import org.onap.pnfsimulator.rest.util.DateUtil;
import org.onap.pnfsimulator.rest.util.ResponseBuilder;
import org.onap.pnfsimulator.simulator.Simulator;
import org.onap.pnfsimulator.simulator.SimulatorFactory;
import org.onap.pnfsimulator.simulator.validation.ValidationException;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/simulator")
public class SimulatorController {
private static final Logger LOGGER = LogManager.getLogger(Simulator.class);
private static final DateFormat RESPONSE_DATE_FORMAT = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss,SSS");
private Simulator simulator;
@PostMapping("start")
public ResponseEntity start(@RequestBody String message) {
if (simulator != null && simulator.isAlive()) {
return ResponseBuilder
.status(HttpStatus.BAD_REQUEST.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Cannot start simulator since it's already running")
.build();
}
try {
JSONObject root = new JSONObject(message);
JSONObject simulatorParams = root.getJSONObject(SIMULATOR_PARAMS_CONTAINER);
JSONObject messageParams = root.getJSONObject(MessageConstants.MESSAGE_PARAMS_CONTAINER);
simulator = SimulatorFactory
.usingMessageProvider(new MessageProvider())
.create(simulatorParams, messageParams);
simulator.start();
} catch (JSONException e) {
LOGGER.error("Cannot start simulator, invalid json format: " + e.getMessage());
LOGGER.debug("Received json has invalid format:\n" + message);
return ResponseBuilder
.status(HttpStatus.BAD_REQUEST.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Cannot start simulator, invalid json format")
.build();
} catch (ValidationException e) {
LOGGER.error("Cannot start simulator - missing mandatory parameters");
return ResponseBuilder
.status(HttpStatus.BAD_REQUEST.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, e.getMessage())
.build();
} catch (RuntimeException e) {
LOGGER.error("Cannot start simulator - unexpected exception", e);
return ResponseBuilder
.status(HttpStatus.INTERNAL_SERVER_ERROR.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Unexpected exception: " + e.getMessage())
.build();
}
return ResponseBuilder
.status(HttpStatus.OK.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Simulator started")
.build();
}
@GetMapping("status")
public ResponseEntity status() {
if (simulator != null && simulator.isAlive()) {
ResponseBuilder responseBuilder = ResponseBuilder
.status(HttpStatus.OK.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(SIMULATOR_STATUS, "RUNNING");
if (!simulator.isEndless()) {
responseBuilder.put(REMAINING_TIME, simulator.getRemainingTime());
}
return responseBuilder.build();
} else {
return ResponseBuilder
.status(HttpStatus.OK.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(SIMULATOR_STATUS, "NOT RUNNING")
.build();
}
}
@PostMapping("stop")
public ResponseEntity stop() {
if (simulator != null && simulator.isAlive()) {
simulator.interrupt();
return ResponseBuilder
.status(HttpStatus.OK.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Simulator successfully stopped")
.build();
} else {
return ResponseBuilder
.status(HttpStatus.BAD_REQUEST.value())
.put(TIMESTAMP, DateUtil.getTimestamp(RESPONSE_DATE_FORMAT))
.put(MESSAGE, "Cannot stop simulator, because it's not running")
.build();
}
}
}
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