gerrit.onap Code Review - policy/drools-applications.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * controlloop
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.controlloop.util;
  22
  23 import java.lang.reflect.Type;
  24 import java.time.Instant;
  25 import java.time.ZonedDateTime;
  26 import java.time.format.DateTimeFormatter;
  27
  28 import org.onap.policy.controlloop.ControlLoopNotificationType;
  29 import org.onap.policy.controlloop.ControlLoopTargetType;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 import com.google.gson.Gson;
  34 import com.google.gson.GsonBuilder;
  35 import com.google.gson.JsonDeserializationContext;
  36 import com.google.gson.JsonDeserializer;
  37 import com.google.gson.JsonElement;
  38 import com.google.gson.JsonPrimitive;
  39 import com.google.gson.JsonSerializationContext;
  40 import com.google.gson.JsonSerializer;
  41
  42 public final class Serialization {
  43         private Serialization() {
  44         }
  45
  46         public static class NotificationTypeAdapter implements JsonSerializer<ControlLoopNotificationType>, JsonDeserializer<ControlLoopNotificationType> {
  47                 @Override
  48                 public JsonElement serialize(ControlLoopNotificationType src, Type typeOfSrc,
  49                                 JsonSerializationContext context) {
  50                         return new JsonPrimitive(src.toString());
  51                 }
  52
  53                 @Override
  54                 public ControlLoopNotificationType deserialize(JsonElement json, Type typeOfT,
  55                                 JsonDeserializationContext context) {
  56                         return ControlLoopNotificationType.toType(json.getAsString());
  57                 }
  58         }
  59
  60         public static class TargetTypeAdapter implements JsonSerializer<ControlLoopTargetType>, JsonDeserializer<ControlLoopTargetType> {
  61                 @Override
  62                 public JsonElement serialize(ControlLoopTargetType src, Type typeOfSrc,
  63                                 JsonSerializationContext context) {
  64                         return new JsonPrimitive(src.toString());
  65                 }
  66
  67                 @Override
  68                 public ControlLoopTargetType deserialize(JsonElement json, Type typeOfT,
  69                                 JsonDeserializationContext context) {
  70                         return ControlLoopTargetType.toType(json.getAsString());
  71                 }
  72         }
  73
  74         public static class GSONUTCAdapter implements JsonSerializer<ZonedDateTime>, JsonDeserializer<ZonedDateTime> {
  75                 private static final Logger logger = LoggerFactory.getLogger(GSONUTCAdapter.class);
  76                 public static final DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSSSSSxxx");
  77
  78                 @Override
  79                 public ZonedDateTime deserialize(JsonElement element, Type type, JsonDeserializationContext context) {
  80                         try {
  81                                 return ZonedDateTime.parse(element.getAsString(), format);
  82                         } catch (Exception e) {
  83                                 logger.error(e.getMessage(), e);
  84                         }
  85                         return null;
  86                 }
  87
  88                 @Override
  89                 public JsonElement serialize(ZonedDateTime datetime, Type type, JsonSerializationContext context) {
  90                         return new JsonPrimitive(datetime.format(format));
  91                 }
  92         }
  93
  94         public static class GSONInstantAdapter implements JsonSerializer<Instant>, JsonDeserializer<Instant> {
  95
  96                 @Override
  97                 public Instant deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
  98                         return Instant.ofEpochMilli(json.getAsLong());
  99                 }
 100
 101                 @Override
 102                 public JsonElement serialize(Instant src, Type typeOfSrc, JsonSerializationContext context) {
 103                         return new JsonPrimitive(src.toEpochMilli());
 104                 }
 105
 106         }
 107
 108         public static final Gson gson = new GsonBuilder().disableHtmlEscaping()
 109                         .registerTypeAdapter(ZonedDateTime.class, new GSONUTCAdapter())
 110                         .registerTypeAdapter(Instant.class, new GSONInstantAdapter())
 111                         .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter())
 112                         .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter())
 113                         .create();
 114
 115
 116         public static final Gson gsonPretty = new GsonBuilder().disableHtmlEscaping()
 117                         .setPrettyPrinting()
 118                         .registerTypeAdapter(ZonedDateTime.class, new GSONUTCAdapter())
 119                         .registerTypeAdapter(Instant.class, new GSONInstantAdapter())
 120                         .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter())
 121                         .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter())
 122                         .create();
 123
 124         public static final Gson gsonJunit = new GsonBuilder().disableHtmlEscaping()
 125                         .setPrettyPrinting()
 126                         .registerTypeAdapter(ZonedDateTime.class, new GSONUTCAdapter())
 127                         .registerTypeAdapter(Instant.class, new GSONInstantAdapter())
 128                         .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter())
 129                         .create();
 130
 131 }