refactored queue validator

dao/src/main/java/org/thingsboard/server/dao/service/DataValidator.java

@@ -17,6 +17,7 @@ package org.thingsboard.server.dao.service;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 import org.thingsboard.server.common.data.BaseData;
 import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -36,6 +37,11 @@ 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 final Pattern QUEUE_PATTERN = Pattern.compile("^[a-zA-Z0-9_.\\-]+$");
+
+    private static final String NAME = "name";
+    private static final String TOPIC = "topic";
+
     // Returns old instance of the same object that is fetched during validation.
     public D validate(D data, Function<D, TenantId> tenantIdFunction) {
         try {
@@ -134,4 +140,22 @@ public abstract class DataValidator<D extends BaseData<?>> {
         }
     }
 
+    protected static void validateQueueName(String name) {
+        validateQueueNameOrTopic(name, NAME);
+    }
+
+    protected static void validateQueueTopic(String topic) {
+        validateQueueNameOrTopic(topic, TOPIC);
+    }
+
+    private static void validateQueueNameOrTopic(String value, String fieldName) {
+        if (StringUtils.isEmpty(value)) {
+            throw new DataValidationException(String.format("Queue %s should be specified!", fieldName));
+        }
+        if (!QUEUE_PATTERN.matcher(value).matches()) {
+            throw new DataValidationException(
+                    String.format("Queue %s contains a character other than ASCII alphanumerics, '.', '_' and '-'!", fieldName));
+        }
+    }
+
 }

dao/src/main/java/org/thingsboard/server/dao/service/validator/QueueValidator.java

@@ -15,7 +15,6 @@
  */
 package org.thingsboard.server.dao.service.validator;
 
-import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.thingsboard.server.common.data.TenantProfile;
@@ -29,8 +28,6 @@ import org.thingsboard.server.dao.queue.QueueDao;
 import org.thingsboard.server.dao.service.DataValidator;
 import org.thingsboard.server.dao.tenant.TbTenantProfileCache;
 
-import java.util.regex.Pattern;
-
 @Component
 public class QueueValidator extends DataValidator<Queue> {
 
@@ -40,8 +37,6 @@ public class QueueValidator extends DataValidator<Queue> {
     @Autowired
     private TbTenantProfileCache tenantProfileCache;
 
-    private final Pattern queueTopicPattern = Pattern.compile("^[a-zA-Z0-9_.\\-]+$");
-
     @Override
     protected void validateCreate(TenantId tenantId, Queue queue) {
         if (queueDao.findQueueByTenantIdAndName(tenantId, queue.getName()) != null) {
@@ -77,18 +72,9 @@ public class QueueValidator extends DataValidator<Queue> {
             }
         }
 
-        if (StringUtils.isEmpty(queue.getName())) {
-            throw new DataValidationException("Queue name should be specified!");
-        }
-        if (!queueTopicPattern.matcher(queue.getName()).matches()) {
-            throw new DataValidationException("Queue name contains a character other than ASCII alphanumerics, '.', '_' and '-'!");
-        }
-        if (StringUtils.isEmpty(queue.getTopic())) {
-            throw new DataValidationException("Queue topic should be specified!");
-        }
-        if (!queueTopicPattern.matcher(queue.getTopic()).matches()) {
-            throw new DataValidationException("Queue topic contains a character other than ASCII alphanumerics, '.', '_' and '-'!");
-        }
+        validateQueueName(queue.getName());
+        validateQueueTopic(queue.getTopic());
+
         if (queue.getPollInterval() < 1) {
             throw new DataValidationException("Queue poll interval should be more then 0!");
         }

dao/src/main/java/org/thingsboard/server/dao/service/validator/TenantProfileDataValidator.java

@@ -34,7 +34,6 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
-import java.util.regex.Pattern;
 
 @Component
 public class TenantProfileDataValidator extends DataValidator<TenantProfile> {
@@ -46,8 +45,6 @@ public class TenantProfileDataValidator extends DataValidator<TenantProfile> {
     @Lazy
     private TenantProfileService tenantProfileService;
 
-    private final Pattern queueTopicPattern = Pattern.compile("^[a-zA-Z0-9_.\\-]+$");
-
     @Override
     protected void validateDataImpl(TenantId tenantId, TenantProfile tenantProfile) {
         if (StringUtils.isEmpty(tenantProfile.getName())) {
@@ -110,18 +107,9 @@ public class TenantProfileDataValidator extends DataValidator<TenantProfile> {
     }
 
     private void validateQueueConfiguration(TenantProfileQueueConfiguration queue) {
-        if (StringUtils.isEmpty(queue.getName())) {
-            throw new DataValidationException("Queue name should be specified!");
-        }
-        if (!queueTopicPattern.matcher(queue.getName()).matches()) {
-            throw new DataValidationException("Queue name contains a character other than ASCII alphanumerics, '.', '_' and '-'!");
-        }
-        if (StringUtils.isEmpty(queue.getTopic())) {
-            throw new DataValidationException("Queue topic should be specified!");
-        }
-        if (!queueTopicPattern.matcher(queue.getTopic()).matches()) {
-            throw new DataValidationException("Queue topic contains a character other than ASCII alphanumerics, '.', '_' and '-'!");
-        }
+        validateQueueName(queue.getName());
+        validateQueueTopic(queue.getTopic());
+
         if (queue.getPollInterval() < 1) {
             throw new DataValidationException("Queue poll interval should be more then 0!");
         }