Refactoring and backward-compatiblity improvements

application/src/main/java/org/thingsboard/server/actors/device/DeviceActorMessageProcessor.java

@@ -69,6 +69,7 @@ import org.thingsboard.server.service.rpc.FromDeviceRpcResponse;
 import org.thingsboard.server.service.rpc.ToDeviceRpcRequestActorMsg;
 import org.thingsboard.server.service.rpc.ToServerRpcResponseActorMsg;
 import org.thingsboard.server.service.transport.msg.TransportToDeviceActorMsgWrapper;
+import org.thingsboard.server.utils.JsonUtils;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
@@ -102,7 +103,6 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
     private final Map<Integer, ToServerRpcRequestMetadata> toServerRpcPendingMap;
 
     private final Gson gson = new Gson();
-    private final JsonParser jsonParser = new JsonParser();
 
     private int rpcSeq = 0;
     private String deviceName;
@@ -327,7 +327,7 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
     }
 
     private void handlePostAttributesRequest(ActorContext context, SessionInfoProto sessionInfo, PostAttributeMsg postAttributes) {
-        JsonObject json = getJsonObject(postAttributes.getKvList());
+        JsonObject json = JsonUtils.getJsonObject(postAttributes.getKvList());
         TbMsg tbMsg = new TbMsg(UUIDs.timeBased(), SessionMsgType.POST_ATTRIBUTES_REQUEST.name(), deviceId, defaultMetaData.copy(),
                 TbMsgDataType.JSON, gson.toJson(json), null, null, 0L);
         pushToRuleEngine(context, tbMsg);
@@ -335,7 +335,7 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
 
     private void handlePostTelemetryRequest(ActorContext context, SessionInfoProto sessionInfo, PostTelemetryMsg postTelemetry) {
         for (TsKvListProto tsKv : postTelemetry.getTsKvListList()) {
-            JsonObject json = getJsonObject(tsKv.getKvList());
+            JsonObject json = JsonUtils.getJsonObject(tsKv.getKvList());
             TbMsgMetaData metaData = defaultMetaData.copy();
             metaData.putValue("ts", tsKv.getTs() + "");
             TbMsg tbMsg = new TbMsg(UUIDs.timeBased(), SessionMsgType.POST_TELEMETRY_REQUEST.name(), deviceId, metaData, TbMsgDataType.JSON, gson.toJson(json), null, null, 0L);
@@ -347,7 +347,7 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
         UUID sessionId = getSessionId(sessionInfo);
         JsonObject json = new JsonObject();
         json.addProperty("method", request.getMethodName());
-        json.add("params", jsonParser.parse(request.getParams()));
+        json.add("params", JsonUtils.parse(request.getParams()));
 
         TbMsgMetaData requestMetaData = defaultMetaData.copy();
         requestMetaData.putValue("requestId", Integer.toString(request.getRequestId()));
@@ -551,30 +551,6 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
         this.defaultMetaData.putValue("deviceType", deviceType);
     }
 
-    private JsonObject getJsonObject(List<KeyValueProto> tsKv) {
-        JsonObject json = new JsonObject();
-        for (KeyValueProto kv : tsKv) {
-            switch (kv.getType()) {
-                case BOOLEAN_V:
-                    json.addProperty(kv.getKey(), kv.getBoolV());
-                    break;
-                case LONG_V:
-                    json.addProperty(kv.getKey(), kv.getLongV());
-                    break;
-                case DOUBLE_V:
-                    json.addProperty(kv.getKey(), kv.getDoubleV());
-                    break;
-                case STRING_V:
-                    json.addProperty(kv.getKey(), kv.getStringV());
-                    break;
-                case JSON_V:
-                    json.add(kv.getKey(), jsonParser.parse(kv.getJsonV()));
-                    break;
-            }
-        }
-        return json;
-    }
-
     private void sendToTransport(GetAttributeResponseMsg responseMsg, SessionInfoProto sessionInfo) {
         DeviceActorToTransportMsg msg = DeviceActorToTransportMsg.newBuilder()
                 .setSessionIdMSB(sessionInfo.getSessionIdMSB())

application/src/main/java/org/thingsboard/server/service/mail/DefaultMailService.java

@@ -103,7 +103,14 @@ public class DefaultMailService implements MailService {
         javaMailProperties.put(MAIL_PROP + protocol + ".port", jsonConfig.get("smtpPort").asText());
         javaMailProperties.put(MAIL_PROP + protocol + ".timeout", jsonConfig.get("timeout").asText());
         javaMailProperties.put(MAIL_PROP + protocol + ".auth", String.valueOf(StringUtils.isNotEmpty(jsonConfig.get("username").asText())));
-        boolean enableTls = jsonConfig.has("enableTls") && jsonConfig.get("enableTls").booleanValue();
+        boolean enableTls = false;
+        if (jsonConfig.has("enableTls")) {
+            if (jsonConfig.get("enableTls").isBoolean() && jsonConfig.get("enableTls").booleanValue()) {
+                enableTls = true;
+            } else if (jsonConfig.get("enableTls").isTextual()) {
+                enableTls = "true".equalsIgnoreCase(jsonConfig.get("enableTls").asText());
+            }
+        }
         javaMailProperties.put(MAIL_PROP + protocol + ".starttls.enable", enableTls);
         if (enableTls && jsonConfig.has("tlsVersion") && StringUtils.isNoneEmpty(jsonConfig.get("tlsVersion").asText())) {
             javaMailProperties.put(MAIL_PROP + protocol + ".ssl.protocols", jsonConfig.get("tlsVersion").asText());

application/src/main/java/org/thingsboard/server/utils/JsonUtils.java

@@ -0,0 +1,55 @@
+/**
+ * Copyright © 2016-2020 The Thingsboard Authors
+ *
+ * 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.
+ */
+package org.thingsboard.server.utils;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import org.thingsboard.server.gen.transport.TransportProtos.KeyValueProto;
+import java.util.List;
+
+public class JsonUtils {
+
+    private static final JsonParser jsonParser = new JsonParser();
+
+    public static JsonObject getJsonObject(List<KeyValueProto> tsKv) {
+        JsonObject json = new JsonObject();
+        for (KeyValueProto kv : tsKv) {
+            switch (kv.getType()) {
+                case BOOLEAN_V:
+                    json.addProperty(kv.getKey(), kv.getBoolV());
+                    break;
+                case LONG_V:
+                    json.addProperty(kv.getKey(), kv.getLongV());
+                    break;
+                case DOUBLE_V:
+                    json.addProperty(kv.getKey(), kv.getDoubleV());
+                    break;
+                case STRING_V:
+                    json.addProperty(kv.getKey(), kv.getStringV());
+                    break;
+                case JSON_V:
+                    json.add(kv.getKey(), jsonParser.parse(kv.getJsonV()));
+                    break;
+            }
+        }
+        return json;
+    }
+
+    public static JsonElement parse(String params) {
+        return jsonParser.parse(params);
+    }
+}