migrate model-impl from drools-applications

migrate controlloop/common/model-impl from drools-applicaitons to
policy/models

Issue-ID: POLICY-1264
Change-Id: Ibe0bb5c49a7b1344f4104b30455f52834041e187
Signed-off-by: Hengye <yehui.wang@est.tech>

1 files changed, 126 insertions, 0 deletions

diff --git a/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/util/Serialization.java b/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/util/Serialization.java
new file mode 100644
index 000000000..b36ee7f6b
--- /dev/null
+++ b/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/util/Serialization.java
@@ -0,0 +1,126 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * controlloop
+ * ================================================================================
+ * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2019 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.controlloop.util;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+
+import java.lang.reflect.Type;
+import java.time.Instant;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+
+import org.onap.policy.controlloop.ControlLoopNotificationType;
+import org.onap.policy.controlloop.ControlLoopTargetType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class Serialization {
+    public static final Gson gson =
+            new GsonBuilder().disableHtmlEscaping().registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
+                    .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
+                    .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter())
+                    .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter()).create();
+
+
+    public static final Gson gsonPretty = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting()
+            .registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
+            .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
+            .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter())
+            .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter()).create();
+
+    public static final Gson gsonJunit = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting()
+            .registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
+            .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
+            .registerTypeAdapter(ControlLoopTargetType.class, new TargetTypeAdapter()).create();
+
+    private Serialization() {}
+
+    public static class NotificationTypeAdapter
+            implements JsonSerializer<ControlLoopNotificationType>, JsonDeserializer<ControlLoopNotificationType> {
+        @Override
+        public JsonElement serialize(ControlLoopNotificationType src, Type typeOfSrc,
+                JsonSerializationContext context) {
+            return new JsonPrimitive(src.toString());
+        }
+
+        @Override
+        public ControlLoopNotificationType deserialize(JsonElement json, Type typeOfT,
+                JsonDeserializationContext context) {
+            return ControlLoopNotificationType.toType(json.getAsString());
+        }
+    }
+
+    public static class TargetTypeAdapter
+            implements JsonSerializer<ControlLoopTargetType>, JsonDeserializer<ControlLoopTargetType> {
+        @Override
+        public JsonElement serialize(ControlLoopTargetType src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src.toString());
+        }
+
+        @Override
+        public ControlLoopTargetType deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
+            return ControlLoopTargetType.toType(json.getAsString());
+        }
+    }
+
+    public static class GsonUtcAdapter implements JsonSerializer<ZonedDateTime>, JsonDeserializer<ZonedDateTime> {
+        private static final Logger logger = LoggerFactory.getLogger(GsonUtcAdapter.class);
+        public static final DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSSSSSxxx");
+
+        @Override
+        public ZonedDateTime deserialize(JsonElement element, Type type, JsonDeserializationContext context) {
+            try {
+                return ZonedDateTime.parse(element.getAsString(), format);
+            } catch (Exception e) {
+                logger.error(e.getMessage(), e);
+            }
+            return null;
+        }
+
+        @Override
+        public JsonElement serialize(ZonedDateTime datetime, Type type, JsonSerializationContext context) {
+            return new JsonPrimitive(datetime.format(format));
+        }
+    }
+
+    public static class GsonInstantAdapter implements JsonSerializer<Instant>, JsonDeserializer<Instant> {
+
+        @Override
+        public Instant deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
+            return Instant.ofEpochMilli(json.getAsLong());
+        }
+
+        @Override
+        public JsonElement serialize(Instant src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src.toEpochMilli());
+        }
+
+    }
+
+}