Implement fields validation

@@ -26,12 +26,12 @@ import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
 import org.thingsboard.rule.engine.api.MailService;
 import org.thingsboard.rule.engine.api.SmsService;
-import org.thingsboard.server.common.data.sms.config.TestSmsRequest;
 import org.thingsboard.server.common.data.AdminSettings;
 import org.thingsboard.server.common.data.UpdateMessage;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.security.model.SecuritySettings;
+import org.thingsboard.server.common.data.sms.config.TestSmsRequest;
 import org.thingsboard.server.dao.settings.AdminSettingsService;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.security.permission.Operation;
@@ -88,6 +88,7 @@ public class AdminController extends BaseController {
             } else if (adminSettings.getKey().equals("sms")) {
                 smsService.updateSmsConfiguration();
             }
+
             return adminSettings;
         } catch (Exception e) {
             throw handleException(e);

@@ -34,6 +34,7 @@ import org.thingsboard.server.common.data.relation.EntityRelation;
 import org.thingsboard.server.common.data.relation.EntityRelationInfo;
 import org.thingsboard.server.common.data.relation.EntityRelationsQuery;
 import org.thingsboard.server.common.data.relation.RelationTypeGroup;
+import org.thingsboard.server.dao.service.ConstraintValidator;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.security.permission.Operation;
 
@@ -63,6 +64,7 @@ public class EntityRelationController extends BaseController {
             if (relation.getTypeGroup() == null) {
                 relation.setTypeGroup(RelationTypeGroup.COMMON);
             }
+            ConstraintValidator.validateFields(relation);
             relationService.saveRelation(getTenantId(), relation);
 
             logEntityAction(relation.getFrom(), null, getCurrentUser().getCustomerId(),

@@ -48,7 +48,6 @@ import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.TenantProfile;
 import org.thingsboard.server.common.data.audit.ActionType;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
-import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.EntityIdFactory;
@@ -73,6 +72,7 @@ import org.thingsboard.server.common.data.kv.StringDataEntry;
 import org.thingsboard.server.common.data.kv.TsKvEntry;
 import org.thingsboard.server.common.data.tenant.profile.DefaultTenantProfileConfiguration;
 import org.thingsboard.server.common.transport.adaptor.JsonConverter;
+import org.thingsboard.server.dao.service.ConstraintValidator;
 import org.thingsboard.server.dao.timeseries.TimeseriesService;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.security.AccessValidator;
@@ -138,7 +138,11 @@ public class TelemetryController extends BaseController {
     @ResponseBody
     public DeferredResult<ResponseEntity> getAttributeKeys(
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr) throws ThingsboardException {
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr, this::getAttributeKeysCallback);
+        try {
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr, this::getAttributeKeysCallback);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -147,8 +151,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> getAttributeKeysByScope(
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr
             , @PathVariable("scope") String scope) throws ThingsboardException {
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
-                (result, tenantId, entityId) -> getAttributeKeysCallback(result, tenantId, entityId, scope));
+        try {
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> getAttributeKeysCallback(result, tenantId, entityId, scope));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -157,9 +165,13 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> getAttributes(
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
             @RequestParam(name = "keys", required = false) String keysStr) throws ThingsboardException {
-        SecurityUser user = getCurrentUser();
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
-                (result, tenantId, entityId) -> getAttributeValuesCallback(result, user, entityId, null, keysStr));
+        try {
+            SecurityUser user = getCurrentUser();
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> getAttributeValuesCallback(result, user, entityId, null, keysStr));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -169,9 +181,13 @@ public class TelemetryController extends BaseController {
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
             @PathVariable("scope") String scope,
             @RequestParam(name = "keys", required = false) String keysStr) throws ThingsboardException {
-        SecurityUser user = getCurrentUser();
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
-                (result, tenantId, entityId) -> getAttributeValuesCallback(result, user, entityId, scope, keysStr));
+        try {
+            SecurityUser user = getCurrentUser();
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_ATTRIBUTES, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> getAttributeValuesCallback(result, user, entityId, scope, keysStr));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -179,8 +195,12 @@ public class TelemetryController extends BaseController {
     @ResponseBody
     public DeferredResult<ResponseEntity> getTimeseriesKeys(
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr) throws ThingsboardException {
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
-                (result, tenantId, entityId) -> Futures.addCallback(tsService.findAllLatest(tenantId, entityId), getTsKeysToResponseCallback(result), MoreExecutors.directExecutor()));
+        try {
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> Futures.addCallback(tsService.findAllLatest(tenantId, entityId), getTsKeysToResponseCallback(result), MoreExecutors.directExecutor()));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -190,10 +210,14 @@ public class TelemetryController extends BaseController {
             @PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
             @RequestParam(name = "keys", required = false) String keysStr,
             @RequestParam(name = "useStrictDataTypes", required = false, defaultValue = "false") Boolean useStrictDataTypes) throws ThingsboardException {
-        SecurityUser user = getCurrentUser();
+        try {
+            SecurityUser user = getCurrentUser();
 
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
-                (result, tenantId, entityId) -> getLatestTimeseriesValuesCallback(result, user, entityId, keysStr, useStrictDataTypes));
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> getLatestTimeseriesValuesCallback(result, user, entityId, keysStr, useStrictDataTypes));
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
 
@@ -211,15 +235,19 @@ public class TelemetryController extends BaseController {
             @RequestParam(name = "agg", defaultValue = "NONE") String aggStr,
             @RequestParam(name = "orderBy", defaultValue = "DESC") String orderBy,
             @RequestParam(name = "useStrictDataTypes", required = false, defaultValue = "false") Boolean useStrictDataTypes) throws ThingsboardException {
-        return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
-                (result, tenantId, entityId) -> {
-                    // If interval is 0, convert this to a NONE aggregation, which is probably what the user really wanted
-                    Aggregation agg = interval == 0L ? Aggregation.valueOf(Aggregation.NONE.name()) : Aggregation.valueOf(aggStr);
-                    List<ReadTsKvQuery> queries = toKeysList(keys).stream().map(key -> new BaseReadTsKvQuery(key, startTs, endTs, interval, limit, agg, orderBy))
-                            .collect(Collectors.toList());
-
-                    Futures.addCallback(tsService.findAll(tenantId, entityId, queries), getTsKvListCallback(result, useStrictDataTypes), MoreExecutors.directExecutor());
-                });
+        try {
+            return accessValidator.validateEntityAndCallback(getCurrentUser(), Operation.READ_TELEMETRY, entityType, entityIdStr,
+                    (result, tenantId, entityId) -> {
+                        // If interval is 0, convert this to a NONE aggregation, which is probably what the user really wanted
+                        Aggregation agg = interval == 0L ? Aggregation.valueOf(Aggregation.NONE.name()) : Aggregation.valueOf(aggStr);
+                        List<ReadTsKvQuery> queries = toKeysList(keys).stream().map(key -> new BaseReadTsKvQuery(key, startTs, endTs, interval, limit, agg, orderBy))
+                                .collect(Collectors.toList());
+
+                        Futures.addCallback(tsService.findAll(tenantId, entityId, queries), getTsKvListCallback(result, useStrictDataTypes), MoreExecutors.directExecutor());
+                    });
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -227,8 +255,12 @@ public class TelemetryController extends BaseController {
     @ResponseBody
     public DeferredResult<ResponseEntity> saveDeviceAttributes(@PathVariable("deviceId") String deviceIdStr, @PathVariable("scope") String scope,
                                                                @RequestBody JsonNode request) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndUuid(EntityType.DEVICE, deviceIdStr);
-        return saveAttributes(getTenantId(), entityId, scope, request);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndUuid(EntityType.DEVICE, deviceIdStr);
+            return saveAttributes(getTenantId(), entityId, scope, request);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -237,8 +269,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> saveEntityAttributesV1(@PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
                                                                  @PathVariable("scope") String scope,
                                                                  @RequestBody JsonNode request) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return saveAttributes(getTenantId(), entityId, scope, request);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return saveAttributes(getTenantId(), entityId, scope, request);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -247,8 +283,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> saveEntityAttributesV2(@PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
                                                                  @PathVariable("scope") String scope,
                                                                  @RequestBody JsonNode request) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return saveAttributes(getTenantId(), entityId, scope, request);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return saveAttributes(getTenantId(), entityId, scope, request);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -257,8 +297,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> saveEntityTelemetry(@PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
                                                               @PathVariable("scope") String scope,
                                                               @RequestBody String requestBody) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return saveTelemetry(getTenantId(), entityId, requestBody, 0L);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return saveTelemetry(getTenantId(), entityId, requestBody, 0L);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -267,8 +311,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> saveEntityTelemetryWithTTL(@PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
                                                                      @PathVariable("scope") String scope, @PathVariable("ttl") Long ttl,
                                                                      @RequestBody String requestBody) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return saveTelemetry(getTenantId(), entityId, requestBody, ttl);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return saveTelemetry(getTenantId(), entityId, requestBody, ttl);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -280,8 +328,12 @@ public class TelemetryController extends BaseController {
                                                                  @RequestParam(name = "startTs", required = false) Long startTs,
                                                                  @RequestParam(name = "endTs", required = false) Long endTs,
                                                                  @RequestParam(name = "rewriteLatestIfDeleted", defaultValue = "false") boolean rewriteLatestIfDeleted) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return deleteTimeseries(entityId, keysStr, deleteAllDataForKeys, startTs, endTs, rewriteLatestIfDeleted);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return deleteTimeseries(entityId, keysStr, deleteAllDataForKeys, startTs, endTs, rewriteLatestIfDeleted);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     private DeferredResult<ResponseEntity> deleteTimeseries(EntityId entityIdStr, String keysStr, boolean deleteAllDataForKeys,
@@ -335,8 +387,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> deleteEntityAttributes(@PathVariable("deviceId") String deviceIdStr,
                                                                  @PathVariable("scope") String scope,
                                                                  @RequestParam(name = "keys") String keysStr) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndUuid(EntityType.DEVICE, deviceIdStr);
-        return deleteAttributes(entityId, scope, keysStr);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndUuid(EntityType.DEVICE, deviceIdStr);
+            return deleteAttributes(entityId, scope, keysStr);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     @PreAuthorize("hasAnyAuthority('SYS_ADMIN', 'TENANT_ADMIN', 'CUSTOMER_USER')")
@@ -345,8 +401,12 @@ public class TelemetryController extends BaseController {
     public DeferredResult<ResponseEntity> deleteEntityAttributes(@PathVariable("entityType") String entityType, @PathVariable("entityId") String entityIdStr,
                                                                  @PathVariable("scope") String scope,
                                                                  @RequestParam(name = "keys") String keysStr) throws ThingsboardException {
-        EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
-        return deleteAttributes(entityId, scope, keysStr);
+        try {
+            EntityId entityId = EntityIdFactory.getByTypeAndId(entityType, entityIdStr);
+            return deleteAttributes(entityId, scope, keysStr);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
 
     private DeferredResult<ResponseEntity> deleteAttributes(EntityId entityIdSrc, String scope, String keysStr) throws ThingsboardException {
@@ -392,6 +452,7 @@ public class TelemetryController extends BaseController {
         }
         if (json.isObject()) {
             List<AttributeKvEntry> attributes = extractRequestAttributes(json);
+            attributes.forEach(ConstraintValidator::validateFields);
             if (attributes.isEmpty()) {
                 return getImmediateDeferredResult("No attributes data found in request body!", HttpStatus.BAD_REQUEST);
             }

@@ -17,30 +17,36 @@ package org.thingsboard.server.common.data;
 
 import lombok.EqualsAndHashCode;
 import org.thingsboard.server.common.data.id.UUIDBased;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @EqualsAndHashCode(callSuper = true)
 public abstract class ContactBased<I extends UUIDBased> extends SearchTextBasedWithAdditionalInfo<I> implements HasName {
-    
+
     private static final long serialVersionUID = 5047448057830660988L;
 
+    @Length(fieldName = "country")
     @NoXss
     protected String country;
+    @Length(fieldName = "state")
     @NoXss
     protected String state;
+    @Length(fieldName = "city")
     @NoXss
     protected String city;
     @NoXss
     protected String address;
     @NoXss
     protected String address2;
+    @Length(fieldName = "zip or postal code")
     @NoXss
     protected String zip;
+    @Length(fieldName = "phone")
     @NoXss
     protected String phone;
     @NoXss
     protected String email;
-    
+
     public ContactBased() {
         super();
     }
@@ -48,7 +54,7 @@ public abstract class ContactBased<I extends UUIDBased> extends SearchTextBasedW
     public ContactBased(I id) {
         super(id);
     }
-    
+
     public ContactBased(ContactBased<I> contact) {
         super(contact);
         this.country = contact.getCountry();

@@ -20,13 +20,15 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonProperty.Access;
 import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 public class Customer extends ContactBased<CustomerId> implements HasTenantId {
-    
+
     private static final long serialVersionUID = -1599722990298929275L;
 
     @NoXss
+    @Length(fieldName = "title")
     private String title;
     private TenantId tenantId;
 
@@ -37,7 +39,7 @@ public class Customer extends ContactBased<CustomerId> implements HasTenantId {
     public Customer(CustomerId id) {
         super(id);
     }
-    
+
     public Customer(Customer customer) {
         super(customer);
         this.tenantId = customer.getTenantId();
@@ -51,7 +53,7 @@ public class Customer extends ContactBased<CustomerId> implements HasTenantId {
     public void setTenantId(TenantId tenantId) {
         this.tenantId = tenantId;
     }
-    
+
     public String getTitle() {
         return title;
     }

@@ -19,6 +19,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.DashboardId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 import javax.validation.Valid;
@@ -29,6 +30,7 @@ public class DashboardInfo extends SearchTextBased<DashboardId> implements HasNa
 
     private TenantId tenantId;
     @NoXss
+    @Length(fieldName = "title")
     private String title;
     private String image;
     @Valid

@@ -25,6 +25,7 @@ import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.OtaPackageId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 import java.io.ByteArrayInputStream;
@@ -39,10 +40,13 @@ public class Device extends SearchTextBasedWithAdditionalInfo<DeviceId> implemen
     private TenantId tenantId;
     private CustomerId customerId;
     @NoXss
+    @Length(fieldName = "name")
     private String name;
     @NoXss
+    @Length(fieldName = "type")
     private String type;
     @NoXss
+    @Length(fieldName = "label")
     private String label;
     private DeviceProfileId deviceProfileId;
     private transient DeviceData deviceData;

@@ -26,6 +26,7 @@ import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.OtaPackageId;
 import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 import javax.validation.Valid;
@@ -41,6 +42,7 @@ public class DeviceProfile extends SearchTextBased<DeviceProfileId> implements H
 
     private TenantId tenantId;
     @NoXss
+    @Length(fieldName = "name")
     private String name;
     @NoXss
     private String description;

@@ -23,6 +23,7 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.EntityViewId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.objects.TelemetryEntityView;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 /**
@@ -41,8 +42,10 @@ public class EntityView extends SearchTextBasedWithAdditionalInfo<EntityViewId>
     private TenantId tenantId;
     private CustomerId customerId;
     @NoXss
+    @Length(fieldName = "name")
     private String name;
     @NoXss
+    @Length(fieldName = "type")
     private String type;
     private TelemetryEntityView keys;
     private long startTimeMs;

@@ -19,11 +19,12 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.extern.slf4j.Slf4j;
-import org.thingsboard.server.common.data.ota.ChecksumAlgorithm;
-import org.thingsboard.server.common.data.ota.OtaPackageType;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.OtaPackageId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.ota.ChecksumAlgorithm;
+import org.thingsboard.server.common.data.ota.OtaPackageType;
+import org.thingsboard.server.common.data.validation.Length;
 
 @Slf4j
 @Data
@@ -35,10 +36,14 @@ public class OtaPackageInfo extends SearchTextBasedWithAdditionalInfo<OtaPackage
     private TenantId tenantId;
     private DeviceProfileId deviceProfileId;
     private OtaPackageType type;
+    @Length(fieldName = "title")
     private String title;
+    @Length(fieldName = "version")
     private String version;
+    @Length(fieldName = "url")
     private String url;
     private boolean hasData;
+    @Length(fieldName = "file name")
     private String fileName;
     private String contentType;
     private ChecksumAlgorithm checksumAlgorithm;

@@ -19,6 +19,7 @@ import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.id.TbResourceId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @Slf4j
@@ -29,6 +30,7 @@ public class TbResource extends TbResourceInfo {
     private static final long serialVersionUID = 7379609705527272306L;
 
     @NoXss
+    @Length(fieldName = "file name")
     private String fileName;
 
     private String data;

@@ -21,6 +21,7 @@ import lombok.EqualsAndHashCode;
 import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.id.TbResourceId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @Slf4j
@@ -32,6 +33,7 @@ public class TbResourceInfo extends SearchTextBased<TbResourceId> implements Has
 
     private TenantId tenantId;
     @NoXss
+    @Length(fieldName = "title")
     private String title;
     private ResourceType resourceType;
     private String resourceKey;

@@ -20,6 +20,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.EqualsAndHashCode;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.TenantProfileId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @EqualsAndHashCode(callSuper = true)
@@ -27,8 +28,10 @@ public class Tenant extends ContactBased<TenantId> implements HasTenantId {
 
     private static final long serialVersionUID = 8057243243859922101L;
 
+    @Length(fieldName = "title")
     @NoXss
     private String title;
+    @Length(fieldName = "region")
     @NoXss
     private String region;
     private TenantProfileId tenantProfileId;
@@ -40,7 +43,7 @@ public class Tenant extends ContactBased<TenantId> implements HasTenantId {
     public Tenant(TenantId id) {
         super(id);
     }
-    
+
     public Tenant(Tenant tenant) {
         super(tenant);
         this.title = tenant.getTitle();

@@ -23,6 +23,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.id.TenantProfileId;
 import org.thingsboard.server.common.data.tenant.profile.DefaultTenantProfileConfiguration;
 import org.thingsboard.server.common.data.tenant.profile.TenantProfileData;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 import java.io.ByteArrayInputStream;
@@ -37,6 +38,7 @@ import static org.thingsboard.server.common.data.SearchTextBasedWithAdditionalIn
 public class TenantProfile extends SearchTextBased<TenantProfileId> implements HasName {
 
     @NoXss
+    @Length(fieldName = "name")
     private String name;
     @NoXss
     private String description;

@@ -23,7 +23,7 @@ import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.UserId;
 import org.thingsboard.server.common.data.security.Authority;
-
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @EqualsAndHashCode(callSuper = true)
@@ -36,8 +36,10 @@ public class User extends SearchTextBasedWithAdditionalInfo<UserId> implements H
     private String email;
     private Authority authority;
     @NoXss
+    @Length(fieldName = "firs name")
     private String firstName;
     @NoXss
+    @Length(fieldName = "last name")
     private String lastName;
 
     public User() {

@@ -28,6 +28,7 @@ import org.thingsboard.server.common.data.id.AlarmId;
 import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 
 import java.util.List;
 
@@ -41,6 +42,7 @@ public class Alarm extends BaseData<AlarmId> implements HasName, HasTenantId, Ha
 
     private TenantId tenantId;
     private CustomerId customerId;
+    @Length(fieldName = "type")
     private String type;
     private EntityId originator;
     private AlarmSeverity severity;

@@ -15,7 +15,6 @@
  */
 package org.thingsboard.server.common.data.edge;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
@@ -28,6 +27,7 @@ import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.EdgeId;
 import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 
 @EqualsAndHashCode(callSuper = true)
 @ToString
@@ -40,8 +40,11 @@ public class Edge extends SearchTextBasedWithAdditionalInfo<EdgeId> implements H
     private TenantId tenantId;
     private CustomerId customerId;
     private RuleChainId rootRuleChainId;
+    @Length(fieldName = "name")
     private String name;
+    @Length(fieldName = "type")
     private String type;
+    @Length(fieldName = "label")
     private String label;
     private String routingKey;
     private String secret;

@@ -15,8 +15,7 @@
  */
 package org.thingsboard.server.common.data.kv;
 
-import com.fasterxml.jackson.databind.JsonNode;
-
+import javax.validation.Valid;
 import java.util.Optional;
 
 /**
@@ -25,6 +24,7 @@ import java.util.Optional;
 public class BaseAttributeKvEntry implements AttributeKvEntry {
 
     private final long lastUpdateTs;
+    @Valid
     private final KvEntry kv;
 
     public BaseAttributeKvEntry(KvEntry kv, long lastUpdateTs) {

@@ -15,11 +15,14 @@
  */
 package org.thingsboard.server.common.data.kv;
 
+import org.thingsboard.server.common.data.validation.Length;
+
 import java.util.Objects;
 import java.util.Optional;
 
 public abstract class BasicKvEntry implements KvEntry {
 
+    @Length(fieldName = "attribute key")
     private final String key;
 
     protected BasicKvEntry(String key) {

@@ -21,6 +21,7 @@ import java.util.Optional;
 public class StringDataEntry extends BasicKvEntry {
 
     private static final long serialVersionUID = 1L;
+
     private final String value;
 
     public StringDataEntry(String key, String value) {

@@ -16,15 +16,12 @@
 package org.thingsboard.server.common.data.relation;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.extern.slf4j.Slf4j;
 import org.thingsboard.server.common.data.SearchTextBasedWithAdditionalInfo;
 import org.thingsboard.server.common.data.id.EntityId;
+import org.thingsboard.server.common.data.validation.Length;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
 import java.io.Serializable;
 
 @Slf4j
@@ -38,6 +35,7 @@ public class EntityRelation implements Serializable {
 
     private EntityId from;
     private EntityId to;
+    @Length(fieldName = "type")
     private String type;
     private RelationTypeGroup typeGroup;
     private transient JsonNode additionalInfo;

@@ -26,6 +26,7 @@ import org.thingsboard.server.common.data.SearchTextBasedWithAdditionalInfo;
 import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.id.RuleNodeId;
 import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
 @Data
@@ -37,6 +38,7 @@ public class RuleChain extends SearchTextBasedWithAdditionalInfo<RuleChainId> im
 
     private TenantId tenantId;
     @NoXss
+    @Length(fieldName = "name")
     private String name;
     private RuleChainType type;
     private RuleNodeId firstRuleNodeId;

@@ -24,6 +24,7 @@ import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.SearchTextBasedWithAdditionalInfo;
 import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.id.RuleNodeId;
+import org.thingsboard.server.common.data.validation.Length;
 
 @Data
 @EqualsAndHashCode(callSuper = true)
@@ -33,7 +34,9 @@ public class RuleNode extends SearchTextBasedWithAdditionalInfo<RuleNodeId> impl
     private static final long serialVersionUID = -5656679015121235465L;
 
     private RuleChainId ruleChainId;
+    @Length(fieldName = "type")
     private String type;
+    @Length(fieldName = "name")
     private String name;
     private boolean debugMode;
     private transient JsonNode configuration;

+/**
+ * Copyright © 2016-2021 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.common.data.validation;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.FIELD)
+@Constraint(validatedBy = {})
+public @interface Length {
+    String message() default "length of {fieldName} should be equals or less than {max}";
+
+    String fieldName();
+
+    int max() default 255;
+
+    Class<?>[] groups() default {};
+
+    Class<? extends Payload>[] payload() default {};
+}

@@ -19,10 +19,9 @@ import org.thingsboard.server.common.data.HasTenantId;
 import org.thingsboard.server.common.data.SearchTextBased;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.id.WidgetsBundleId;
+import org.thingsboard.server.common.data.validation.Length;
 import org.thingsboard.server.common.data.validation.NoXss;
 
-import java.util.Arrays;
-
 public class WidgetsBundle extends SearchTextBased<WidgetsBundleId> implements HasTenantId {
 
     private static final long serialVersionUID = -7627368878362410489L;
@@ -31,6 +30,7 @@ public class WidgetsBundle extends SearchTextBased<WidgetsBundleId> implements H
     @NoXss
     private String alias;
     @NoXss
+    @Length(fieldName = "title")
     private String title;
     private String image;
     @NoXss

+/**
+ * Copyright © 2016-2021 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.dao.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.hibernate.validator.HibernateValidator;
+import org.hibernate.validator.HibernateValidatorConfiguration;
+import org.hibernate.validator.cfg.ConstraintMapping;
+import org.thingsboard.server.common.data.validation.Length;
+import org.thingsboard.server.common.data.validation.NoXss;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.Validation;
+import javax.validation.ValidationException;
+import javax.validation.Validator;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Slf4j
+public class ConstraintValidator {
+
+    private static Validator fieldsValidator;
+
+    static {
+        initializeValidators();
+    }
+
+    public static void validateFields(Object data) {
+        Set<ConstraintViolation<Object>> constraintsViolations = fieldsValidator.validate(data);
+        List<String> validationErrors = constraintsViolations.stream()
+                .map(ConstraintViolation::getMessage)
+                .distinct()
+                .collect(Collectors.toList());
+        if (!validationErrors.isEmpty()) {
+            throw new ValidationException("Validation error: " + String.join(", ", validationErrors));
+        }
+    }
+
+    private static void initializeValidators() {
+        HibernateValidatorConfiguration validatorConfiguration = Validation.byProvider(HibernateValidator.class).configure();
+
+        ConstraintMapping constraintMapping = validatorConfiguration.createConstraintMapping();
+        constraintMapping.constraintDefinition(NoXss.class).validatedBy(NoXssValidator.class);
+        constraintMapping.constraintDefinition(Length.class).validatedBy(StringLengthValidator.class);
+        validatorConfiguration.addMapping(constraintMapping);
+
+        fieldsValidator = validatorConfiguration.buildValidatorFactory().getValidator();
+    }
+}

@@ -17,51 +17,32 @@ package org.thingsboard.server.dao.service;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import lombok.extern.slf4j.Slf4j;
-import org.hibernate.validator.HibernateValidator;
-import org.hibernate.validator.HibernateValidatorConfiguration;
-import org.hibernate.validator.cfg.ConstraintMapping;
 import org.thingsboard.server.common.data.BaseData;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.TenantId;
-import org.thingsboard.server.common.data.tenant.profile.DefaultTenantProfileConfiguration;
-import org.thingsboard.server.common.data.validation.NoXss;
 import org.thingsboard.server.dao.TenantEntityDao;
 import org.thingsboard.server.dao.TenantEntityWithDataDao;
 import org.thingsboard.server.dao.exception.DataValidationException;
 
-import javax.validation.ConstraintViolation;
-import javax.validation.Validation;
-import javax.validation.Validator;
 import java.util.HashSet;
 import java.util.Iterator;
-import java.util.List;
 import java.util.Set;
 import java.util.function.Function;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import java.util.stream.Collectors;
 
 @Slf4j
 public abstract class DataValidator<D extends BaseData<?>> {
     private static final Pattern EMAIL_PATTERN =
             Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,}$", Pattern.CASE_INSENSITIVE);
 
-    private static Validator fieldsValidator;
-
-    static {
-        initializeFieldsValidator();
-    }
-
     public void validate(D data, Function<D, TenantId> tenantIdFunction) {
         try {
             if (data == null) {
                 throw new DataValidationException("Data object can't be null!");
             }
 
-            List<String> validationErrors = validateFields(data);
-            if (!validationErrors.isEmpty()) {
-                throw new IllegalArgumentException("Validation error: " + String.join(", ", validationErrors));
-            }
+            ConstraintValidator.validateFields(data);
 
             TenantId tenantId = tenantIdFunction.apply(data);
             validateDataImpl(tenantId, data);
@@ -104,14 +85,6 @@ public abstract class DataValidator<D extends BaseData<?>> {
         return emailMatcher.matches();
     }
 
-    private List<String> validateFields(D data) {
-        Set<ConstraintViolation<D>> constraintsViolations = fieldsValidator.validate(data);
-        return constraintsViolations.stream()
-                .map(ConstraintViolation::getMessage)
-                .distinct()
-                .collect(Collectors.toList());
-    }
-
     protected void validateNumberOfEntitiesPerTenant(TenantId tenantId,
                                                      TenantEntityDao tenantEntityDao,
                                                      long maxEntities,
@@ -126,10 +99,10 @@ public abstract class DataValidator<D extends BaseData<?>> {
     }
 
     protected void validateMaxSumDataSizePerTenant(TenantId tenantId,
-                                                     TenantEntityWithDataDao dataDao,
-                                                     long maxSumDataSize,
-                                                     long currentDataSize,
-                                                     EntityType entityType) {
+                                                   TenantEntityWithDataDao dataDao,
+                                                   long maxSumDataSize,
+                                                   long currentDataSize,
+                                                   EntityType entityType) {
         if (maxSumDataSize > 0) {
             if (dataDao.sumDataSizeByTenantId(tenantId) + currentDataSize > maxSumDataSize) {
                 throw new DataValidationException(String.format("Failed to create the %s, files size limit is exhausted %d bytes!",
@@ -156,12 +129,4 @@ public abstract class DataValidator<D extends BaseData<?>> {
         }
     }
 
-    private static void initializeFieldsValidator() {
-        HibernateValidatorConfiguration validatorConfiguration = Validation.byProvider(HibernateValidator.class).configure();
-        ConstraintMapping constraintMapping = validatorConfiguration.createConstraintMapping();
-        constraintMapping.constraintDefinition(NoXss.class).validatedBy(NoXssValidator.class);
-        validatorConfiguration.addMapping(constraintMapping);
-
-        fieldsValidator = validatorConfiguration.buildValidatorFactory().getValidator();
-    }
 }

+/**
+ * Copyright © 2016-2021 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.dao.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.thingsboard.server.common.data.StringUtils;
+import org.thingsboard.server.common.data.validation.Length;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+@Slf4j
+public class StringLengthValidator implements ConstraintValidator<Length, String> {
+    private int max;
+
+    @Override
+    public boolean isValid(String value, ConstraintValidatorContext context) {
+        if (StringUtils.isEmpty(value)) {
+            return true;
+        }
+        return value.trim().length() <= max;
+    }
+
+    @Override
+    public void initialize(Length constraintAnnotation) {
+        this.max = constraintAnnotation.max();
+    }
+}

@@ -36,6 +36,9 @@
         <mat-error *ngIf="attributeFormGroup.get('key').hasError('required')">
           {{ 'attribute.key-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="attributeFormGroup.get('key').hasError('maxlength')">
+          {{ 'attribute.key-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-value-input
         formControlName="value"

@@ -56,7 +56,7 @@ export class AddAttributeDialogComponent extends DialogComponent<AddAttributeDia
 
   ngOnInit(): void {
     this.attributeFormGroup = this.fb.group({
-      key: ['', [Validators.required]],
+      key: ['', [Validators.required, Validators.maxLength(255)]],
       value: [null, [Validators.required]]
     });
   }

@@ -36,15 +36,15 @@ export abstract class ContactBasedComponent<T extends ContactBased<HasId>> exten
 
   buildForm(entity: T): FormGroup {
     const entityForm = this.buildEntityForm(entity);
-    entityForm.addControl('country', this.fb.control(entity ? entity.country : '', []));
-    entityForm.addControl('city', this.fb.control(entity ? entity.city : '', []));
-    entityForm.addControl('state', this.fb.control(entity ? entity.state : '', []));
+    entityForm.addControl('country', this.fb.control(entity ? entity.country : '', [Validators.maxLength(255)]));
+    entityForm.addControl('city', this.fb.control(entity ? entity.city : '', [Validators.maxLength(255)]));
+    entityForm.addControl('state', this.fb.control(entity ? entity.state : '', [Validators.maxLength(255)]));
     entityForm.addControl('zip', this.fb.control(entity ? entity.zip : '',
       this.zipValidators(entity ? entity.country : '')
     ));
     entityForm.addControl('address', this.fb.control(entity ? entity.address : '', []));
     entityForm.addControl('address2', this.fb.control(entity ? entity.address2 : '', []));
-    entityForm.addControl('phone', this.fb.control(entity ? entity.phone : '', []));
+    entityForm.addControl('phone', this.fb.control(entity ? entity.phone : '', [Validators.maxLength(255)]));
     entityForm.addControl('email', this.fb.control(entity ? entity.email : '', [Validators.email]));
     return entityForm;
   }

@@ -41,6 +41,9 @@
               <mat-error *ngIf="deviceProfileDetailsFormGroup.get('name').hasError('required')">
                 {{ 'device-profile.name-required' | translate }}
               </mat-error>
+              <mat-error *ngIf="deviceProfileDetailsFormGroup.get('name').hasError('maxlength')">
+                {{ 'device-profile.name-max-length' | translate }}
+              </mat-error>
             </mat-form-field>
             <tb-rule-chain-autocomplete
               labelText="device-profile.default-rule-chain"

@@ -105,7 +105,7 @@ export class AddDeviceProfileDialogComponent extends
     super(store, router, dialogRef);
     this.deviceProfileDetailsFormGroup = this.fb.group(
       {
-        name: [data.deviceProfileName, [Validators.required]],
+        name: [data.deviceProfileName, [Validators.required, Validators.maxLength(255)]],
         type: [DeviceProfileType.DEFAULT, [Validators.required]],
         image: [null, []],
         defaultRuleChainId: [null, []],

@@ -54,6 +54,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'device-profile.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'device-profile.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-rule-chain-autocomplete
         labelText="device-profile.default-rule-chain"

@@ -102,7 +102,7 @@ export class DeviceProfileComponent extends EntityComponent<DeviceProfile> {
     };
     const form = this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
         type: [entity ? entity.type : null, [Validators.required]],
         image: [entity ? entity.image : null],
         transportType: [entity ? entity.transportType : null, [Validators.required]],

@@ -48,6 +48,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'tenant-profile.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'tenant-profile.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <div fxLayout="column">
         <mat-checkbox class="hinted-checkbox" formControlName="isolatedTbCore">

@@ -58,7 +58,7 @@ export class TenantProfileComponent extends EntityComponent<TenantProfile> {
   buildForm(entity: TenantProfile): FormGroup {
     return this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
         isolatedTbCore: [entity ? entity.isolatedTbCore : false, []],
         isolatedTbRuleEngine: [entity ? entity.isolatedTbRuleEngine : false, []],
         profileData: [entity && !this.isAdd ? entity.profileData : {

@@ -44,10 +44,16 @@
               <mat-error *ngIf="deviceWizardFormGroup.get('name').hasError('required')">
                 {{ 'device.name-required' | translate }}
               </mat-error>
+              <mat-error *ngIf="deviceWizardFormGroup.get('name').hasError('maxlength')">
+                {{ 'device.name-max-length' | translate }}
+              </mat-error>
             </mat-form-field>
             <mat-form-field class="mat-block">
               <mat-label translate>device.label</mat-label>
               <input matInput formControlName="label">
+              <mat-error *ngIf="deviceWizardFormGroup.get('label').hasError('maxlength')">
+                {{ 'device.label-max-length' | translate }}
+              </mat-error>
             </mat-form-field>
             <div fxLayout="row" fxLayoutGap="16px">
               <mat-radio-group fxLayout="column" formControlName="addProfileType" fxLayoutAlign="space-around">

@@ -105,8 +105,8 @@ export class DeviceWizardDialogComponent extends
               private fb: FormBuilder) {
     super(store, router, dialogRef);
     this.deviceWizardFormGroup = this.fb.group({
-        name: ['', Validators.required],
-        label: [''],
+        name: ['', [Validators.required, Validators.maxLength(255)]],
+        label: ['', Validators.maxLength(255)],
         gateway: [false],
         overwriteActivityTime: [false],
         addProfileType: [0],

@@ -56,6 +56,9 @@
         <mat-error *ngIf="entityForm.get('title').hasError('required')">
           {{ 'resource.title-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+          {{ 'resource.title-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-file-input *ngIf="isAdd"
         formControlName="data"

@@ -29,7 +29,7 @@ import {
   ResourceTypeMIMETypes,
   ResourceTypeTranslationMap
 } from '@shared/models/resource.models';
-import { pairwise, startWith, takeUntil } from 'rxjs/operators';
+import {filter, pairwise, startWith, takeUntil} from 'rxjs/operators';
 import { ActionNotificationShow } from "@core/notification/notification.actions";
 
 @Component({
@@ -56,16 +56,14 @@ export class ResourcesLibraryComponent extends EntityComponent<Resource> impleme
     super.ngOnInit();
     this.entityForm.get('resourceType').valueChanges.pipe(
       startWith(ResourceType.LWM2M_MODEL),
-      pairwise(),
+      filter(() => this.isAdd),
       takeUntil(this.destroy$)
-    ).subscribe(([previousType, type]) => {
-      if (previousType === this.resourceType.LWM2M_MODEL) {
-        this.entityForm.get('title').setValidators(Validators.required);
-        this.entityForm.get('title').updateValueAndValidity({emitEvent: false});
-      }
+    ).subscribe((type) => {
       if (type === this.resourceType.LWM2M_MODEL) {
-        this.entityForm.get('title').clearValidators();
-        this.entityForm.get('title').updateValueAndValidity({emitEvent: false});
+        this.entityForm.get('title').disable({emitEvent: false});
+        this.entityForm.patchValue({title: ''}, {emitEvent: false});
+      } else {
+        this.entityForm.get('title').enable({emitEvent: false})
       }
       this.entityForm.patchValue({
         data: null,
@@ -91,11 +89,8 @@ export class ResourcesLibraryComponent extends EntityComponent<Resource> impleme
   buildForm(entity: Resource): FormGroup {
     const form = this.fb.group(
       {
-        title: [entity ? entity.title : '', []],
-        resourceType: [{
-          value: entity?.resourceType ? entity.resourceType : ResourceType.LWM2M_MODEL,
-          disabled: !this.isAdd
-        }, [Validators.required]],
+        title: [entity ? entity.title : "", [Validators.required, Validators.maxLength(255)]],
+        resourceType: [entity?.resourceType ? entity.resourceType : ResourceType.LWM2M_MODEL, [Validators.required]],
         fileName: [entity ? entity.fileName : null, [Validators.required]],
       }
     );

@@ -76,6 +76,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'asset.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'asset.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-entity-subtype-autocomplete
         formControlName="type"
@@ -86,6 +89,9 @@
       <mat-form-field class="mat-block">
         <mat-label translate>asset.label</mat-label>
         <input matInput formControlName="label">
+        <mat-error *ngIf="entityForm.get('label').hasError('maxlength')">
+          {{ 'asset.label-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <div formGroupName="additionalInfo">
         <mat-form-field class="mat-block">

@@ -65,9 +65,9 @@ export class AssetComponent extends EntityComponent<AssetInfo> {
   buildForm(entity: AssetInfo): FormGroup {
     return this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
-        type: [entity ? entity.type : null, [Validators.required]],
-        label: [entity ? entity.label : ''],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
+        type: [entity ? entity.type : null, [Validators.required, Validators.maxLength(255)]],
+        label: [entity ? entity.label : '', Validators.maxLength(255)],
         additionalInfo: this.fb.group(
           {
             description: [entity && entity.additionalInfo ? entity.additionalInfo.description : ''],

@@ -73,6 +73,9 @@
         <mat-error *ngIf="entityForm.get('title').hasError('required')">
           {{ 'customer.title-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+          {{ 'customer.title-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <div formGroupName="additionalInfo" fxLayout="column">
         <mat-form-field class="mat-block">

@@ -57,7 +57,7 @@ export class CustomerComponent extends ContactBasedComponent<Customer> {
   buildEntityForm(entity: Customer): FormGroup {
     return this.fb.group(
       {
-        title: [entity ? entity.title : '', [Validators.required]],
+        title: [entity ? entity.title : '', [Validators.required, Validators.maxLength(255)]],
         additionalInfo: this.fb.group(
           {
             description: [entity && entity.additionalInfo ? entity.additionalInfo.description : ''],

@@ -104,6 +104,9 @@
         <mat-error *ngIf="entityForm.get('title').hasError('required')">
           {{ 'dashboard.title-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+          {{ 'dashboard.title-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-image-input fxFlex
                       label="{{'dashboard.image' | translate}}"

@@ -79,7 +79,7 @@ export class DashboardFormComponent extends EntityComponent<Dashboard> {
     this.updateFields(entity);
     return this.fb.group(
       {
-        title: [entity ? entity.title : '', [Validators.required]],
+        title: [entity ? entity.title : '', [Validators.required, Validators.maxLength(255)]],
         image: [entity ? entity.image : null],
         configuration: this.fb.group(
           {

@@ -89,6 +89,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'device.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'device.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-device-profile-autocomplete
         [selectDefaultProfile]="isAdd"
@@ -100,6 +103,9 @@
       <mat-form-field class="mat-block">
         <mat-label translate>device.label</mat-label>
         <input matInput formControlName="label">
+        <mat-error *ngIf="entityForm.get('label').hasError('maxlength')">
+          {{ 'device.label-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-ota-package-autocomplete
         [useFullEntityId]="true"

@@ -81,11 +81,11 @@ export class DeviceComponent extends EntityComponent<DeviceInfo> {
   buildForm(entity: DeviceInfo): FormGroup {
     const form = this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
         deviceProfileId: [entity ? entity.deviceProfileId : null, [Validators.required]],
         firmwareId: [entity ? entity.firmwareId : null],
         softwareId: [entity ? entity.softwareId : null],
-        label: [entity ? entity.label : ''],
+        label: [entity ? entity.label : '', [Validators.maxLength(255)]],
         deviceData: [entity ? entity.deviceData : null, [Validators.required]],
         additionalInfo: this.fb.group(
           {

@@ -126,6 +126,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'edge.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'edge.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-entity-subtype-autocomplete
         formControlName="type"
@@ -140,6 +143,9 @@
           <mat-error *ngIf="entityForm.get('edgeLicenseKey').hasError('required')">
             {{ 'edge.edge-license-key-required' | translate }}
           </mat-error>
+          <mat-error *ngIf="entityForm.get('type').hasError('maxlength')">
+            {{ 'edge.type-max-length' | translate }}
+          </mat-error>
         </mat-form-field>
       </div>
       <div [fxShow]="edgeScope !== 'customer_user'">
@@ -179,6 +185,9 @@
       <mat-form-field class="mat-block">
         <mat-label translate>edge.label</mat-label>
         <input matInput formControlName="label">
+        <mat-error *ngIf="entityForm.get('label').hasError('maxlength')">
+          {{ 'edge.label-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <div formGroupName="additionalInfo" fxLayout="column">
         <mat-form-field class="mat-block">

@@ -69,9 +69,9 @@ export class EdgeComponent extends EntityComponent<EdgeInfo> {
   buildForm(entity: EdgeInfo): FormGroup {
     const form = this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
-        type: [entity?.type ? entity.type : 'default', [Validators.required]],
-        label: [entity ? entity.label : ''],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
+        type: [entity?.type ? entity.type : 'default', [Validators.required, Validators.maxLength(255)]],
+        label: [entity ? entity.label : '', Validators.maxLength(255)],
         cloudEndpoint: [null, [Validators.required]],
         edgeLicenseKey: ['', [Validators.required]],
         routingKey: this.fb.control({value: entity ? entity.routingKey : null, disabled: true}),

@@ -76,6 +76,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'entity-view.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'entity-view.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-entity-subtype-autocomplete
         formControlName="type"

@@ -80,8 +80,8 @@ export class EntityViewComponent extends EntityComponent<EntityViewInfo> {
   buildForm(entity: EntityViewInfo): FormGroup {
     return this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
-        type: [entity ? entity.type : null, [Validators.required]],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
+        type: [entity ? entity.type : null, Validators.required],
         entityId: [entity ? entity.entityId : null, [Validators.required]],
         startTimeMs: [entity ? entity.startTimeMs : null],
         endTimeMs: [entity ? entity.endTimeMs : null],

@@ -65,6 +65,9 @@
           <mat-error *ngIf="entityForm.get('title').hasError('required')">
             {{ 'ota-update.title-required' | translate }}
           </mat-error>
+          <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+            {{ 'ota-update.title-max-length' | translate }}
+          </mat-error>
         </mat-form-field>
         <mat-form-field class="mat-block" fxFlex>
           <mat-label translate>ota-update.version</mat-label>
@@ -72,6 +75,9 @@
           <mat-error *ngIf="entityForm.get('version').hasError('required')">
             {{ 'ota-update.version-required' | translate }}
           </mat-error>
+          <mat-error *ngIf="entityForm.get('version').hasError('maxlength')">
+            {{ 'ota-update.version-max-length' | translate }}
+          </mat-error>
         </mat-form-field>
       </div>
       <tb-device-profile-autocomplete
@@ -111,7 +117,8 @@
           </mat-checkbox>
         </section>
         <div fxLayout="row" fxLayoutGap.gt-xs="8px" fxLayoutGap.sm="8px"
-             fxLayout.xs="column" fxLayout.md="column" *ngIf="!(isAdd && this.entityForm.get('generateChecksum').value)">
+             fxLayout.xs="column" fxLayout.md="column"
+             *ngIf="!(isAdd && this.entityForm.get('generateChecksum').value)">
           <mat-form-field class="mat-block" fxFlex="33">
             <mat-label translate>ota-update.checksum-algorithm</mat-label>
             <mat-select formControlName="checksumAlgorithm">
@@ -149,7 +156,8 @@
           <input matInput formControlName="url"
                  type="text"
                  [required]="entityForm.get('isURL').value">
-          <mat-error *ngIf="entityForm.get('url').hasError('required') || entityForm.get('url').hasError('pattern')" translate>
+          <mat-error *ngIf="entityForm.get('url').hasError('required') || entityForm.get('url').hasError('pattern')"
+                     translate>
             ota-update.direct-url-required
           </mat-error>
         </mat-form-field>

@@ -84,6 +84,9 @@
         <mat-error *ngIf="entityForm.get('name').hasError('required')">
           {{ 'rulechain.name-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('name').hasError('maxlength')">
+          {{ 'rulechain.name-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <mat-checkbox fxFlex formControlName="debugMode" style="padding-bottom: 16px;">
         {{ 'rulechain.debug-mode' | translate }}

@@ -57,7 +57,7 @@ export class RuleChainComponent extends EntityComponent<RuleChain> {
   buildForm(entity: RuleChain): FormGroup {
     return this.fb.group(
       {
-        name: [entity ? entity.name : '', [Validators.required]],
+        name: [entity ? entity.name : '', [Validators.required, Validators.maxLength(255)]],
         debugMode: [entity ? entity.debugMode : false],
         additionalInfo: this.fb.group(
           {

@@ -48,6 +48,9 @@
         <mat-error *ngIf="entityForm.get('title').hasError('required')">
           {{ 'tenant.title-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+          {{ 'tenant.title-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-tenant-profile-autocomplete
         [selectDefaultProfile]="isAdd"

@@ -51,7 +51,7 @@ export class TenantComponent extends ContactBasedComponent<TenantInfo> {
   buildEntityForm(entity: TenantInfo): FormGroup {
     return this.fb.group(
       {
-        title: [entity ? entity.title : '', [Validators.required]],
+        title: [entity ? entity.title : '', [Validators.required, Validators.maxLength(255)]],
         tenantProfileId: [entity ? entity.tenantProfileId : null, [Validators.required]],
         additionalInfo: this.fb.group(
           {

@@ -44,6 +44,9 @@
         <mat-error *ngIf="entityForm.get('title').hasError('required')">
           {{ 'widgets-bundle.title-required' | translate }}
         </mat-error>
+        <mat-error *ngIf="entityForm.get('title').hasError('maxlength')">
+          {{ 'widgets-bundle.title-max-length' | translate }}
+        </mat-error>
       </mat-form-field>
       <tb-image-input fxFlex
                       label="{{'widgets-bundle.image-preview' | translate}}"

@@ -47,7 +47,7 @@ export class WidgetsBundleComponent extends EntityComponent<WidgetsBundle> {
   buildForm(entity: WidgetsBundle): FormGroup {
     return this.fb.group(
       {
-        title: [entity ? entity.title : '', [Validators.required]],
+        title: [entity ? entity.title : '', [Validators.required, Validators.maxLength(255)]],
         image: [entity ? entity.image : ''],
         description: [entity  ? entity.description : '', Validators.maxLength(255)]
       }

@@ -28,10 +28,16 @@
     <mat-form-field class="mat-block">
       <mat-label translate>contact.city</mat-label>
       <input matInput formControlName="city">
+      <mat-error *ngIf="parentForm.get('city').hasError('maxlength')">
+        {{ 'contact.city-max-length' | translate }}
+      </mat-error>
     </mat-form-field>
     <mat-form-field class="mat-block">
       <mat-label translate>contact.state</mat-label>
       <input matInput formControlName="state">
+      <mat-error *ngIf="parentForm.get('state').hasError('maxlength')">
+        {{ 'contact.state-max-length' | translate }}
+      </mat-error>
     </mat-form-field>
     <mat-form-field class="mat-block">
       <mat-label translate>contact.postal-code</mat-label>
@@ -52,6 +58,9 @@
   <mat-form-field class="mat-block">
     <mat-label translate>contact.phone</mat-label>
     <input matInput formControlName="phone">
+    <mat-error *ngIf="parentForm.get('phone').hasError('maxlength')">
+      {{ 'contact.phone-max-length' | translate }}
+    </mat-error>
   </mat-form-field>
   <mat-form-field class="mat-block">
     <mat-label translate>contact.email</mat-label>

@@ -40,4 +40,7 @@
   <mat-error *ngIf="subTypeFormGroup.get('subType').hasError('required')">
     {{ entitySubtypeRequiredText | translate }}
   </mat-error>
+  <mat-error *ngIf="subTypeFormGroup.get('subType').hasError('maxlength')">
+    {{ entitySubtypeMaxLength | translate }}
+  </mat-error>
 </mat-form-field>

@@ -15,7 +15,7 @@
 ///
 
 import { AfterViewInit, Component, ElementRef, forwardRef, Input, OnDestroy, OnInit, ViewChild } from '@angular/core';
-import { ControlValueAccessor, FormBuilder, FormGroup, NG_VALUE_ACCESSOR } from '@angular/forms';
+import { ControlValueAccessor, FormBuilder, FormGroup, NG_VALUE_ACCESSOR, Validators } from '@angular/forms';
 import { Observable, of, Subscription, throwError } from 'rxjs';
 import {
   catchError,
@@ -58,9 +58,11 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
   entityType: EntityType;
 
   private requiredValue: boolean;
+
   get required(): boolean {
     return this.requiredValue;
   }
+
   @Input()
   set required(value: boolean) {
     this.requiredValue = coerceBooleanProperty(value);
@@ -74,6 +76,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
   selectEntitySubtypeText: string;
   entitySubtypeText: string;
   entitySubtypeRequiredText: string;
+  entitySubtypeMaxLength: string;
 
   filteredSubTypes: Observable<Array<string>>;
 
@@ -96,7 +99,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
               private entityViewService: EntityViewService,
               private fb: FormBuilder) {
     this.subTypeFormGroup = this.fb.group({
-      subType: [null]
+      subType: [null, Validators.maxLength(255)]
     });
   }
 
@@ -114,6 +117,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
         this.selectEntitySubtypeText = 'asset.select-asset-type';
         this.entitySubtypeText = 'asset.asset-type';
         this.entitySubtypeRequiredText = 'asset.asset-type-required';
+        this.entitySubtypeMaxLength = 'asset.asset-type-max-length';
         this.broadcastSubscription = this.broadcast.on('assetSaved', () => {
           this.subTypes = null;
         });
@@ -122,6 +126,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
         this.selectEntitySubtypeText = 'device.select-device-type';
         this.entitySubtypeText = 'device.device-type';
         this.entitySubtypeRequiredText = 'device.device-type-required';
+        this.entitySubtypeMaxLength = 'device.device-type-max-length';
         this.broadcastSubscription = this.broadcast.on('deviceSaved', () => {
           this.subTypes = null;
         });
@@ -130,6 +135,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
         this.selectEntitySubtypeText = 'edge.select-edge-type';
         this.entitySubtypeText = 'edge.edge-type';
         this.entitySubtypeRequiredText = 'edge.edge-type-required';
+        this.entitySubtypeMaxLength = 'edge.type-max-length';
         this.broadcastSubscription = this.broadcast.on('edgeSaved', () => {
           this.subTypes = null;
         });
@@ -138,6 +144,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
         this.selectEntitySubtypeText = 'entity-view.select-entity-view-type';
         this.entitySubtypeText = 'entity-view.entity-view-type';
         this.entitySubtypeRequiredText = 'entity-view.entity-view-type-required';
+        this.entitySubtypeMaxLength = 'entity-view.type-max-length'
         this.broadcastSubscription = this.broadcast.on('entityViewSaved', () => {
           this.subTypes = null;
         });
@@ -149,7 +156,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
         debounceTime(150),
         distinctUntilChanged(),
         tap(value => {
-            this.updateView(value);
+          this.updateView(value);
         }),
         // startWith<string | EntitySubtype>(''),
         map(value => value ? value : ''),
@@ -203,7 +210,7 @@ export class EntitySubTypeAutocompleteComponent implements ControlValueAccessor,
   fetchSubTypes(searchText?: string, strictMatch: boolean = false): Observable<Array<string>> {
     this.searchText = searchText;
     return this.getSubTypes().pipe(
-      map(subTypes => subTypes.filter( subType => {
+      map(subTypes => subTypes.filter(subType => {
         if (strictMatch) {
           return searchText ? subType === searchText : false;
         } else {

@@ -39,4 +39,7 @@
   <mat-error *ngIf="relationTypeFormGroup.get('relationType').hasError('required')">
     {{ 'relation.relation-type-required' | translate }}
   </mat-error>
+  <mat-error *ngIf="relationTypeFormGroup.get('relationType').hasError('maxlength')">
+    {{ 'relation.relation-type-max-length' | translate }}
+  </mat-error>
 </mat-form-field>

@@ -68,7 +68,7 @@ export class RelationTypeAutocompleteComponent implements ControlValueAccessor,
               public translate: TranslateService,
               private fb: FormBuilder) {
     this.relationTypeFormGroup = this.fb.group({
-      relationType: [null, this.required ? [Validators.required] : []]
+      relationType: [null, this.required ? [Validators.required, Validators.maxLength(255)] : [Validators.maxLength(255)]]
     });
   }
 

@@ -369,6 +369,7 @@
         "management": "Asset management",
         "view-assets": "View Assets",
         "add": "Add Asset",
+        "asset-type-max-length": "Asset type should be less than 256",
         "assign-to-customer": "Assign to customer",
         "assign-asset-to-customer": "Assign Asset(s) To Customer",
         "assign-asset-to-customer-text": "Please select the assets to assign to the customer",
@@ -391,6 +392,8 @@
         "asset-types": "Asset types",
         "name": "Name",
         "name-required": "Name is required.",
+        "name-max-length": "Name should be less than 256",
+        "label-max-length": "Label should be less than 256",
         "description": "Description",
         "type": "Type",
         "type-required": "Type is required.",
@@ -449,6 +452,7 @@
         "scope-shared": "Shared attributes",
         "add": "Add attribute",
         "key": "Key",
+        "key-max-length": "Key should be less than 256",
         "last-update-time": "Last update time",
         "key-required": "Attribute key is required.",
         "value": "Value",
@@ -590,7 +594,10 @@
         "address2": "Address 2",
         "phone": "Phone",
         "email": "Email",
-        "no-address": "No address"
+        "no-address": "No address",
+        "state-max-length": "State length should be less than 256",
+        "phone-max-length": "Phone number should be less than 256",
+        "city-max-length": "Specified city should be less than 256"
     },
     "common": {
         "username": "Username",
@@ -646,6 +653,7 @@
         "manage-dashboards": "Manage dashboards",
         "title": "Title",
         "title-required": "Title is required.",
+        "title-max-length": "Title should be less than 256",
         "description": "Description",
         "details": "Details",
         "events": "Events",
@@ -700,6 +708,7 @@
         "select-widget-subtitle": "List of available widget types",
         "delete": "Delete dashboard",
         "title-required": "Title is required.",
+        "title-max-length": "Title should be less than 256",
         "description": "Description",
         "details": "Details",
         "dashboard-details": "Dashboard details",
@@ -886,6 +895,7 @@
         "management": "Device management",
         "view-devices": "View Devices",
         "device-alias": "Device alias",
+        "device-type-max-length": "Device type should be less than 256",
         "aliases": "Device aliases",
         "no-alias-matching": "'{{alias}}' not found.",
         "no-aliases-found": "No aliases found.",
@@ -998,6 +1008,8 @@
         "device-types": "Device types",
         "name": "Name",
         "name-required": "Name is required.",
+        "name-max-length": "Name should be less than 256",
+        "label-max-length": "Label should be less than 256",
         "description": "Description",
         "label": "Label",
         "events": "Events",
@@ -1050,6 +1062,7 @@
         "set-default": "Make device profile default",
         "delete": "Delete device profile",
         "copyId": "Copy device profile Id",
+        "name-max-length": "Name should be less than 256",
         "new-device-profile-name": "Device profile name",
         "new-device-profile-name-required": "Device profile name is required.",
         "name": "Name",
@@ -1401,6 +1414,9 @@
         "edge": "Edge",
         "edge-instances": "Edge instances",
         "edge-file": "Edge file",
+        "name-max-length": "Name should be less than 256",
+        "label-max-length": "Label should be less than 256",
+        "type-max-length": "Type should be less than 256",
         "management": "Edge management",
         "no-edges-matching": "No edges matching '{{entity}}' were found.",
         "rulechain-templates": "Rule chain templates",
@@ -1741,6 +1757,8 @@
         "created-time": "Created time",
         "name": "Name",
         "name-required": "Name is required.",
+        "name-max-length": "Name should be less than 256",
+        "type-max-length": "Entity view type should be less than 256",
         "description": "Description",
         "events": "Events",
         "details": "Details",
@@ -2335,12 +2353,14 @@
       "selected-package": "{ count, plural, 1 {1 package} other {# packages} } selected",
       "title": "Title",
       "title-required": "Title is required.",
+      "title-max-length": "Title should be less than 256",
       "types": {
         "firmware": "Firmware",
         "software": "Software"
       },
       "version": "Version",
       "version-required": "Version is required.",
+      "version-max-length": "Version should be less than 256",
       "warning-after-save-no-edit": "Once the package is uploaded, you will not be able to modify title, version, device profile and package type."
     },
     "position": {
@@ -2379,6 +2399,7 @@
         "delete": "Delete relation",
         "relation-type": "Relation type",
         "relation-type-required": "Relation type is required.",
+        "relation-type-max-length": "Relation type should be less than 256",
         "any-relation-type": "Any type",
         "add": "Add relation",
         "edit": "Edit relation",
@@ -2423,7 +2444,8 @@
         "selected-resources": "{ count, plural, 1 {1 resource} other {# resources} } selected",
         "system": "System",
         "title": "Title",
-        "title-required": "Title is required."
+        "title-required": "Title is required.",
+        "title-max-length": "Title should be less than 256"
     },
     "rulechain": {
         "rulechain": "Rule chain",
@@ -2432,6 +2454,7 @@
         "delete": "Delete rule chain",
         "name": "Name",
         "name-required": "Name is required.",
+        "name-max-length": "Name should be less than 256",
         "description": "Description",
         "add": "Add Rule Chain",
         "set-root": "Make rule chain root",
@@ -2573,6 +2596,7 @@
         "add-tenant-text": "Add new tenant",
         "no-tenants-text": "No tenants found",
         "tenant-details": "Tenant details",
+        "title-max-length": "Title should be less than 256",
         "delete-tenant-title": "Are you sure you want to delete the tenant '{{tenantTitle}}'?",
         "delete-tenant-text": "Be careful, after the confirmation the tenant and all related data will become unrecoverable.",
         "delete-tenants-title": "Are you sure you want to delete { count, plural, 1 {1 tenant} other {# tenants} }?",
@@ -2602,6 +2626,7 @@
         "edit": "Edit tenant profile",
         "tenant-profile-details": "Tenant profile details",
         "no-tenant-profiles-text": "No tenant profiles found",
+        "name-max-length": "Name should be less than 256",
         "search": "Search tenant profiles",
         "selected-tenant-profiles": "{ count, plural, 1 {1 tenant profile} other {# tenant profiles} } selected",
         "no-tenant-profiles-matching": "No tenant profile matching '{{entity}}' were found.",
@@ -2925,6 +2950,7 @@
         "delete": "Delete widgets bundle",
         "title": "Title",
         "title-required": "Title is required.",
+        "title-max-length": "Title should be less than 256",
         "description": "Description",
         "image-preview": "Image preview",
         "add-widgets-bundle-text": "Add new widgets bundle",