nbinotifications/src/main/java/org/opendaylight/transportpce/nbinotifications/serialization/NotificationServiceSerializer.java

   1 /*
   2  * Copyright © 2021 Orange, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.transportpce.nbinotifications.serialization;
   9
  10 import java.io.IOException;
  11 import java.nio.charset.StandardCharsets;
  12 import java.util.Map;
  13 import org.apache.kafka.common.serialization.Serializer;
  14 import org.opendaylight.transportpce.common.converter.JsonStringConverter;
  15 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.NotificationService;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class NotificationServiceSerializer implements Serializer<NotificationService> {
  22     private static final Logger LOG = LoggerFactory.getLogger(NotificationServiceSerializer.class);
  23     private JsonStringConverter<NotificationService> converter;
  24
  25     @SuppressWarnings("unchecked")
  26     @Override
  27     public void configure(Map<String, ?> configs, boolean isKey) {
  28         LOG.info("Deserializer configuration {}", configs);
  29         if (configs.containsKey(ConfigConstants.CONVERTER)
  30                 && configs.get(ConfigConstants.CONVERTER) instanceof JsonStringConverter<?>) {
  31             converter = (JsonStringConverter<NotificationService>) configs.get(ConfigConstants.CONVERTER);
  32         }
  33     }
  34
  35     @Override
  36     public byte[] serialize(String topic, NotificationService data) {
  37         if (converter == null) {
  38             throw new IllegalArgumentException(
  39                     "Converter should be" + "configured through configure method of serializer");
  40         }
  41         if (data == null) {
  42             return new byte[0];
  43         }
  44         try {
  45             InstanceIdentifier<NotificationService> iid = InstanceIdentifier.builder(NotificationService.class).build();
  46             String serialized = converter.createJsonStringFromDataObject(iid, data, JSONCodecFactorySupplier.RFC7951);
  47             LOG.info("Serialized event {}", serialized);
  48             return serialized.getBytes(StandardCharsets.UTF_8);
  49         } catch (IOException e) {
  50             return new byte[0];
  51         }
  52     }
  53 }