Fixes for vc api

application/src/main/java/org/thingsboard/server/controller/EntitiesVersionControlController.java

@@ -223,7 +223,7 @@ public class EntitiesVersionControlController extends BaseController {
             if (versionId == null) {
                 List<EntityVersion> versions = versionControlService.listVersions(user.getTenantId(), request.getBranch());
                 if (versions.size() > 0) {
-                    versionId = versions.get(0).getId();
+                    request.setVersionId(versions.get(0).getId());
                 } else {
                     throw new IllegalArgumentException("No versions available in branch");
                 }

application/src/main/java/org/thingsboard/server/service/sync/vc/LocalGitVersionControlService.java

@@ -16,21 +16,17 @@
 package org.thingsboard.server.service.sync.vc;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.ObjectWriter;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import lombok.RequiredArgsConstructor;
-import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.stereotype.Service;
 import org.thingsboard.common.util.JacksonUtil;
 import org.thingsboard.server.common.data.AdminSettings;
-import org.thingsboard.server.common.data.DataConstants;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.ExportableEntity;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
-import org.thingsboard.server.common.data.kv.KvEntry;
 import org.thingsboard.server.common.data.sync.ie.EntityExportData;
 import org.thingsboard.server.common.data.sync.vc.EntitiesVersionControlSettings;
 import org.thingsboard.server.common.data.sync.vc.EntityVersion;
@@ -38,7 +34,6 @@ import org.thingsboard.server.common.data.sync.vc.VersionCreationResult;
 import org.thingsboard.server.common.data.sync.vc.VersionedEntityInfo;
 import org.thingsboard.server.common.data.sync.vc.request.create.VersionCreateRequest;
 import org.thingsboard.server.dao.DaoUtil;
-import org.thingsboard.server.dao.attributes.AttributesService;
 import org.thingsboard.server.dao.settings.AdminSettingsService;
 import org.thingsboard.server.dao.tenant.TenantDao;
 import org.thingsboard.server.queue.util.AfterStartUp;
@@ -62,13 +57,16 @@ import java.util.stream.Collectors;
 @ConditionalOnProperty(prefix = "vc", value = "git.service", havingValue = "local", matchIfMissing = true)
 public class LocalGitVersionControlService implements GitVersionControlService {
 
-    private final ObjectWriter jsonWriter = new ObjectMapper().writer(SerializationFeature.INDENT_OUTPUT);
     private final GitRepositoryService gitRepositoryService;
     private final TenantDao tenantDao;
     private final AdminSettingsService adminSettingsService;
+
     private final ConcurrentMap<TenantId, Lock> tenantRepoLocks = new ConcurrentHashMap<>();
     private final Map<TenantId, PendingCommit> pendingCommitMap = new HashMap<>();
 
+    private final ObjectMapper jsonMapper = new ObjectMapper()
+            .enable(SerializationFeature.INDENT_OUTPUT);
+
     @AfterStartUp
     public void init() {
         DaoUtil.processInBatches(tenantDao::findTenantsIds, 100, tenantId -> {
@@ -165,7 +163,7 @@ public class LocalGitVersionControlService implements GitVersionControlService {
         doInsideLock(commit, c -> {
             String entityDataJson;
             try {
-                entityDataJson = jsonWriter.writeValueAsString(entityData);
+                entityDataJson = jsonMapper.writeValueAsString(entityData);
                 gitRepositoryService.add(c, getRelativePath(entityData.getEntityType(),
                         entityData.getEntity().getId().toString()), entityDataJson);
             } catch (IOException e) {
@@ -230,7 +228,7 @@ public class LocalGitVersionControlService implements GitVersionControlService {
         try {
             String entityDataJson = gitRepositoryService.getFileContentAtCommit(tenantId,
                     getRelativePath(entityId.getEntityType(), entityId.getId().toString()), versionId);
-            return JacksonUtil.fromString(entityDataJson, EntityExportData.class);
+            return jsonMapper.readValue(entityDataJson, EntityExportData.class);
         } catch (Exception e) {
             //TODO: analyze and return meaningful exceptions that we can show to the client;
             throw new RuntimeException(e);

common/data/src/main/java/org/thingsboard/server/common/data/sync/ie/EntityExportData.java

@@ -20,6 +20,7 @@ import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeInfo.As;
 import lombok.Data;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.ExportableEntity;
@@ -30,7 +31,7 @@ import org.thingsboard.server.common.data.sync.JsonTbEntity;
 import java.util.List;
 
 @JsonIgnoreProperties(ignoreUnknown = true)
-@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "entityType", defaultImpl = EntityExportData.class)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "entityType", include = As.EXISTING_PROPERTY, visible = true, defaultImpl = EntityExportData.class)
 @JsonSubTypes({
         @Type(name = "DEVICE", value = DeviceExportData.class),
         @Type(name = "RULE_CHAIN", value = RuleChainExportData.class)

common/data/src/main/java/org/thingsboard/server/common/data/sync/ie/EntityImportResult.java

@@ -15,26 +15,20 @@
  */
 package org.thingsboard.server.common.data.sync.ie;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.Data;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.ExportableEntity;
 import org.thingsboard.server.common.data.id.EntityId;
-import org.thingsboard.server.common.data.sync.JsonTbEntity;
 import org.thingsboard.server.common.data.sync.ThrowingRunnable;
 
 @Data
 public class EntityImportResult<E extends ExportableEntity<? extends EntityId>> {
 
-    @JsonTbEntity
     private E savedEntity;
-    @JsonTbEntity
     private E oldEntity;
     private EntityType entityType;
 
-    @JsonIgnore
     private ThrowingRunnable saveReferencesCallback = () -> {};
-    @JsonIgnore
     private ThrowingRunnable sendEventsCallback = () -> {};
 
     public void addSaveReferencesCallback(ThrowingRunnable callback) {