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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.adapters.etsisol003adapter.pkgm.rest;
import static org.onap.so.adapters.etsi.sol003.adapter.common.CommonConstants.ETSI_SUBSCRIPTION_NOTIFICATION_CONTROLLER_BASE_URL;
import static org.slf4j.LoggerFactory.getLogger;
import java.time.LocalDateTime;
import java.util.AbstractMap;
import java.util.Map.Entry;
import javax.ws.rs.core.MediaType;
import org.onap.so.adapters.etsi.sol003.adapter.common.utils.LocalDateTimeTypeAdapter;
import org.onap.so.adapters.etsisol003adapter.etsicatalog.notification.model.PkgChangeNotification;
import org.onap.so.adapters.etsisol003adapter.etsicatalog.notification.model.PkgOnboardingNotification;
import org.onap.so.adapters.etsisol003adapter.pkgm.rest.exceptions.InternalServerErrorException;
import org.onap.so.adapters.etsisol003adapter.pkgm.rest.exceptions.NotificationTypeNotSupportedException;
import org.onap.so.adapters.etsisol003adapter.pkgm.subscriptionmgmt.NotificationManager;
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
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 com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
/**
* This controller handles the ETSI Subscription Notification Endpoints.
*
* @author Ronan Kenny (ronan.kenny@est.tech)
* @author Gareth Roper (gareth.roper@est.tech)
* @author Andrew Lamb (andrew.a.lamb@est.tech)
*/
@Controller
@RequestMapping(value = ETSI_SUBSCRIPTION_NOTIFICATION_CONTROLLER_BASE_URL)
public class EtsiSubscriptionNotificationController {
private static final Logger logger = getLogger(EtsiSubscriptionNotificationController.class);
private final NotificationManager notificationManager;
private final Gson gson;
@Autowired
public EtsiSubscriptionNotificationController(final NotificationManager notificationManager) {
this.notificationManager = notificationManager;
this.gson = new GsonBuilder().registerTypeAdapter(LocalDateTime.class, new LocalDateTimeTypeAdapter()).create();
}
@GetMapping(value = "/notification")
public ResponseEntity<Void> testSubscriptionNotificationEndPoint() {
logger.debug("Testing Notification Endpoint");
return ResponseEntity.noContent().build();
}
/**
* POST notification on to subscriber.
*
* @param notification The notification to send.
* @return Response Code: 204 No Content if Successful, ProblemDetails Object if not.
*/
@PostMapping(value = "/notification", consumes = MediaType.APPLICATION_JSON, produces = MediaType.APPLICATION_JSON)
public ResponseEntity<?> postSubscriptionNotification(@RequestBody final Object notification) {
logger.info("Posting subscription notification class: {} \n{}", notification.getClass(), notification);
final String notificationString = gson.toJson(notification);
final Entry<String, Object> notificationObject = getNotificationObject(notificationString);
if (notificationManager.processSubscriptionNotification(notificationObject.getValue(),
notificationObject.getKey())) {
logger.info("Notification Delivered Successfully");
return ResponseEntity.noContent().build();
}
final String errorMessage = "An error occurred. Sending of notification to VNFM failed.";
logger.error(errorMessage);
throw new InternalServerErrorException(errorMessage);
}
private Entry<String, Object> getNotificationObject(final String notification) {
logger.info("getNotificationObject() notification: {}", notification);
final String notificationType = getNotificationType(notification);
if (PkgOnboardingNotification.NotificationTypeEnum.VNFPACKAGEONBOARDINGNOTIFICATION.getValue()
.equals(notificationType)) {
final PkgOnboardingNotification pkgOnboardingNotification =
gson.fromJson(notification, PkgOnboardingNotification.class);
logger.info("Onboarding notification received:\n{}", pkgOnboardingNotification);
return new AbstractMap.SimpleEntry<>(pkgOnboardingNotification.getSubscriptionId(),
pkgOnboardingNotification);
}
if (PkgChangeNotification.NotificationTypeEnum.VNFPACKAGECHANGENOTIFICATION.getValue()
.equals(notificationType)) {
final PkgChangeNotification pkgChangeNotification =
gson.fromJson(notification, PkgChangeNotification.class);
logger.info("Change notification received:\n{}", pkgChangeNotification);
return new AbstractMap.SimpleEntry<>(pkgChangeNotification.getSubscriptionId(), pkgChangeNotification);
}
final String errorMessage = "An error occurred. Notification type not supported for: " + notificationType;
logger.error(errorMessage);
throw new NotificationTypeNotSupportedException(errorMessage);
}
private String getNotificationType(final String notification) {
try {
logger.info("getNotificationType() notification: {}", notification);
final JsonParser parser = new JsonParser();
final JsonObject element = (JsonObject) parser.parse(notification);
return element.get("notificationType").getAsString();
} catch (final Exception e) {
logger.error("An error occurred processing notificiation: {}", e.getMessage());
}
throw new NotificationTypeNotSupportedException(
"Unable to parse notification type in object \n" + notification);
}
}
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