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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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.onap.aai.setup.SchemaVersions;
/**
* Allows for DMaaP notifications from Migrations
*/
public class NotificationHelper {
private static final Logger LOGGER = LoggerFactory.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;
}
}
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