1 files changed, 131 insertions, 0 deletions
diff --git a/adapters/etsi-sol003-adapter/etsi-sol003-package-management/etsi-sol003-package-management-adapter/src/main/java/org/onap/so/adapters/vnfmadapter/rest/EtsiSubscriptionNotificationController.java b/adapters/etsi-sol003-adapter/etsi-sol003-package-management/etsi-sol003-package-management-adapter/src/main/java/org/onap/so/adapters/vnfmadapter/rest/EtsiSubscriptionNotificationController.java
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+++ b/adapters/etsi-sol003-adapter/etsi-sol003-package-management/etsi-sol003-package-management-adapter/src/main/java/org/onap/so/adapters/vnfmadapter/rest/EtsiSubscriptionNotificationController.java
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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.vnfmadapter.rest;
+
+import static org.onap.so.adapters.vnfmadapter.common.CommonConstants.ETSI_SUBSCRIPTION_NOTIFICATION_CONTROLLER_BASE_URL;
+import static org.slf4j.LoggerFactory.getLogger;
+import java.util.AbstractMap;
+import java.util.Map.Entry;
+import javax.ws.rs.core.MediaType;
+import org.onap.so.adapters.vnfmadapter.etsicatalog.notification.model.PkgChangeNotification;
+import org.onap.so.adapters.vnfmadapter.etsicatalog.notification.model.PkgOnboardingNotification;
+import org.onap.so.adapters.vnfmadapter.packagemanagement.subscriptionmanagement.NotificationManager;
+import org.onap.so.adapters.vnfmadapter.rest.exceptions.InternalServerErrorException;
+import org.onap.so.adapters.vnfmadapter.rest.exceptions.NotificationTypeNotSupportedException;
+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().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 String notification) {
+        logger.info("Posting subscription notification \n{}", notification);
+
+        final Entry<String, Object> notificationObject = getNotificationObject(notification);
+        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) {
+        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 {
+            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);
+    }
+
+}