1 files changed, 118 insertions, 0 deletions
diff --git a/src/main/java/org/onap/aai/migration/NotificationHelper.java b/src/main/java/org/onap/aai/migration/NotificationHelper.java
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+++ b/src/main/java/org/onap/aai/migration/NotificationHelper.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T 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.aai.migration;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.util.HashMap;
+import java.util.List;
+
+import javax.ws.rs.core.Response.Status;
+
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.onap.aai.exceptions.AAIException;
+import org.onap.aai.introspection.Introspector;
+import org.onap.aai.introspection.Loader;
+import org.onap.aai.introspection.LoaderFactory;
+import org.onap.aai.introspection.exceptions.AAIUnknownObjectException;
+import org.onap.aai.rest.ueb.UEBNotification;
+import org.onap.aai.serialization.db.DBSerializer;
+import org.onap.aai.serialization.engines.TransactionalGraphEngine;
+import org.onap.aai.serialization.engines.query.QueryEngine;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import org.onap.aai.setup.SchemaVersions;
+
+/**
+ * Allows for DMaaP notifications from Migrations
+ */
+public class NotificationHelper {
+
+	private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(NotificationHelper.class);
+	protected final DBSerializer serializer;
+	protected final Loader loader;
+	protected final TransactionalGraphEngine engine;
+	protected final String transactionId;
+	protected final String sourceOfTruth;
+	protected final UEBNotification	notification;
+
+	public NotificationHelper(Loader loader, DBSerializer serializer, LoaderFactory loaderFactory, SchemaVersions schemaVersions, TransactionalGraphEngine engine, String transactionId, String sourceOfTruth) {
+		this.loader = loader;
+		this.serializer = serializer;
+		this.engine = engine;
+		this.transactionId = transactionId;
+		this.sourceOfTruth = sourceOfTruth;
+		this.notification = new UEBNotification(loader, loaderFactory, schemaVersions);
+	}
+	
+	public void addEvent(Vertex v, Introspector obj, EventAction action, URI uri, String basePath) throws UnsupportedEncodingException, AAIException {
+		HashMap<String, Introspector> relatedObjects = new HashMap<>();
+		Status status = mapAction(action);
+
+		if (!obj.isTopLevel()) {
+			relatedObjects = this.getRelatedObjects(serializer, engine.getQueryEngine(), v);
+		}
+		notification.createNotificationEvent(transactionId, sourceOfTruth, status, uri, obj, relatedObjects, basePath);
+		
+	}
+	
+	public void addDeleteEvent(String transactionId, String sourceOfTruth, EventAction action, URI uri, Introspector obj, HashMap relatedObjects,String basePath) throws UnsupportedEncodingException, AAIException {
+		Status status = mapAction(action);
+		notification.createNotificationEvent(transactionId, sourceOfTruth, status, uri, obj, relatedObjects, basePath);
+		
+	}
+	
+	private HashMap<String, Introspector> getRelatedObjects(DBSerializer serializer, QueryEngine queryEngine, Vertex v) throws AAIException {
+		HashMap<String, Introspector> relatedVertices = new HashMap<>();
+		List<Vertex> vertexChain = queryEngine.findParents(v);
+		for (Vertex vertex : vertexChain) {
+			try {
+				final Introspector vertexObj = serializer.getVertexProperties(vertex);
+				relatedVertices.put(vertexObj.getObjectId(), vertexObj);
+			} catch (AAIUnknownObjectException | UnsupportedEncodingException e) {
+				LOGGER.warn("Unable to get vertex properties, partial list of related vertices returned");
+			}
+			
+		}
+		
+		return relatedVertices;
+	}
+	
+	private Status mapAction(EventAction action) {
+		if (EventAction.CREATE.equals(action)) {
+			return Status.CREATED;
+		} else if (EventAction.UPDATE.equals(action)) {
+			return Status.OK;
+		} else if (EventAction.DELETE.equals(action)) {
+			return Status.NO_CONTENT;
+		} else {
+			return Status.OK;
+		}
+	}
+	
+	public void triggerEvents() throws AAIException {
+		notification.triggerEvents();
+	}
+
+	public UEBNotification getNotifications() {
+		return this.notification;
+	}
+}