Clean up redundant StringUtils

client/src/main/java/com/alibaba/nacos/client/config/NacosConfigService.java

@@ -33,9 +33,9 @@ import com.alibaba.nacos.client.config.impl.LocalConfigInfoProcessor;
 import com.alibaba.nacos.client.config.utils.ContentUtils;
 import com.alibaba.nacos.client.config.utils.ParamUtils;
 import com.alibaba.nacos.client.utils.LogUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
 import com.alibaba.nacos.client.utils.TemplateUtils;
 import com.alibaba.nacos.client.utils.TenantUtil;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
 import java.io.IOException;

client/src/main/java/com/alibaba/nacos/client/config/common/GroupKey.java

@@ -15,7 +15,7 @@
  */
 package com.alibaba.nacos.client.config.common;
 
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * Synthesize the form of dataId+groupId. Escapes reserved characters in dataId and groupId.

client/src/main/java/com/alibaba/nacos/client/config/http/ServerHttpAgent.java

@@ -28,9 +28,9 @@ import com.alibaba.nacos.client.utils.TemplateUtils;
 import com.alibaba.nacos.client.utils.JSONUtils;
 import com.alibaba.nacos.client.utils.LogUtils;
 import com.alibaba.nacos.client.utils.ParamUtil;
-import com.alibaba.nacos.client.utils.StringUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.type.TypeReference;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.math.NumberUtils;
 import org.slf4j.Logger;
 import java.io.IOException;

client/src/main/java/com/alibaba/nacos/client/config/impl/ClientWorker.java

@@ -28,7 +28,7 @@ import com.alibaba.nacos.client.config.utils.MD5;
 import com.alibaba.nacos.client.monitor.MetricsMonitor;
 import com.alibaba.nacos.client.utils.LogUtils;
 import com.alibaba.nacos.client.utils.ParamUtil;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.math.NumberUtils;
 import com.alibaba.nacos.client.utils.TenantUtil;
 import org.slf4j.Logger;

client/src/main/java/com/alibaba/nacos/client/config/impl/LocalConfigInfoProcessor.java

@@ -21,7 +21,7 @@ import com.alibaba.nacos.client.config.utils.IOUtils;
 import com.alibaba.nacos.client.config.utils.JVMUtil;
 import com.alibaba.nacos.client.config.utils.SnapShotSwitch;
 import com.alibaba.nacos.client.utils.LogUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
 import java.io.File;

client/src/main/java/com/alibaba/nacos/client/config/impl/SpasAdapter.java

@@ -18,7 +18,7 @@ package com.alibaba.nacos.client.config.impl;
 import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.client.identify.Base64;
 import com.alibaba.nacos.client.identify.CredentialService;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import javax.crypto.Mac;
 import javax.crypto.SecretKey;

client/src/main/java/com/alibaba/nacos/client/config/listener/impl/PropertiesListener.java

@@ -17,7 +17,7 @@ package com.alibaba.nacos.client.config.listener.impl;
 
 import com.alibaba.nacos.api.config.listener.AbstractListener;
 import com.alibaba.nacos.client.utils.LogUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
 import java.io.IOException;

client/src/main/java/com/alibaba/nacos/client/config/utils/ParamUtils.java

@@ -19,7 +19,7 @@ import java.util.List;
 
 import com.alibaba.nacos.api.exception.NacosException;
 import com.alibaba.nacos.client.utils.IPUtil;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * Param check util

client/src/main/java/com/alibaba/nacos/client/identify/CredentialService.java

@@ -16,7 +16,7 @@
 package com.alibaba.nacos.client.identify;
 
 import com.alibaba.nacos.client.utils.LogUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
 import java.util.concurrent.ConcurrentHashMap;

client/src/main/java/com/alibaba/nacos/client/identify/CredentialWatcher.java

@@ -16,7 +16,7 @@
 package com.alibaba.nacos.client.identify;
 
 import com.alibaba.nacos.client.utils.LogUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
 import java.io.*;

client/src/main/java/com/alibaba/nacos/client/identify/STSConfig.java

@@ -15,7 +15,7 @@
  */
 package com.alibaba.nacos.client.identify;
 
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * Sts config

client/src/main/java/com/alibaba/nacos/client/logging/AbstractNacosLogging.java

@@ -15,8 +15,8 @@
  */
 package com.alibaba.nacos.client.logging;
 
-import com.alibaba.nacos.client.utils.StringUtils;
 import org.apache.commons.lang3.BooleanUtils;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * @author <a href="mailto:huangxiaoyu1018@gmail.com">hxy1991</a>

client/src/main/java/com/alibaba/nacos/client/logging/logback/LogbackNacosLogging.java

@@ -18,8 +18,8 @@ package com.alibaba.nacos.client.logging.logback;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.util.ContextInitializer;
 import com.alibaba.nacos.client.logging.AbstractNacosLogging;
-import com.alibaba.nacos.client.utils.StringUtils;
 import com.alibaba.nacos.common.util.ResourceUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.impl.StaticLoggerBinder;
 
 /**

client/src/main/java/com/alibaba/nacos/client/naming/NacosNamingMaintainService.java

@@ -27,7 +27,7 @@ import com.alibaba.nacos.api.selector.ExpressionSelector;
 import com.alibaba.nacos.api.selector.NoneSelector;
 import com.alibaba.nacos.client.naming.net.NamingProxy;
 import com.alibaba.nacos.client.naming.utils.InitUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.util.Map;
 import java.util.Properties;

client/src/main/java/com/alibaba/nacos/client/naming/NacosNamingService.java

@@ -34,8 +34,8 @@ import com.alibaba.nacos.client.naming.net.NamingProxy;
 import com.alibaba.nacos.client.naming.utils.CollectionUtils;
 import com.alibaba.nacos.client.naming.utils.InitUtils;
 import com.alibaba.nacos.client.naming.utils.UtilAndComs;
-import com.alibaba.nacos.client.utils.StringUtils;
 import org.apache.commons.lang3.BooleanUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.math.NumberUtils;
 
 import java.util.ArrayList;

client/src/main/java/com/alibaba/nacos/client/naming/backups/FailoverReactor.java

@@ -22,7 +22,7 @@ import com.alibaba.nacos.client.naming.cache.DiskCache;
 import com.alibaba.nacos.client.naming.core.HostReactor;
 import com.alibaba.nacos.client.naming.utils.CollectionUtils;
 import com.alibaba.nacos.client.naming.utils.UtilAndComs;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.io.BufferedReader;
 import java.io.File;

client/src/main/java/com/alibaba/nacos/client/naming/cache/DiskCache.java

@@ -20,7 +20,7 @@ import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.api.naming.pojo.Instance;
 import com.alibaba.nacos.api.naming.pojo.ServiceInfo;
 import com.alibaba.nacos.client.naming.utils.CollectionUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.io.BufferedReader;
 import java.io.File;

client/src/main/java/com/alibaba/nacos/client/naming/core/HostReactor.java

@@ -24,7 +24,7 @@ import com.alibaba.nacos.client.naming.backups.FailoverReactor;
 import com.alibaba.nacos.client.naming.cache.DiskCache;
 import com.alibaba.nacos.client.naming.net.NamingProxy;
 import com.alibaba.nacos.client.naming.utils.UtilAndComs;
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.util.*;
 import java.util.concurrent.*;

client/src/main/java/com/alibaba/nacos/client/naming/net/HttpClient.java

@@ -17,8 +17,8 @@ package com.alibaba.nacos.client.naming.net;
 
 import com.alibaba.nacos.api.common.Constants;
 import com.alibaba.nacos.client.naming.utils.IoUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
 import com.google.common.net.HttpHeaders;
+import org.apache.commons.lang3.StringUtils;
 
 import java.io.IOException;
 import java.io.InputStream;

client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java

@@ -33,12 +33,12 @@ import com.alibaba.nacos.client.monitor.MetricsMonitor;
 import com.alibaba.nacos.client.naming.beat.BeatInfo;
 import com.alibaba.nacos.client.naming.utils.*;
 import com.alibaba.nacos.client.utils.AppNameUtils;
-import com.alibaba.nacos.client.utils.StringUtils;
 import com.alibaba.nacos.client.utils.TemplateUtils;
 import com.alibaba.nacos.common.constant.HttpHeaderConsts;
 import com.alibaba.nacos.common.util.HttpMethod;
 import com.alibaba.nacos.common.util.UuidUtils;
 import com.alibaba.nacos.common.util.VersionUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.io.IOException;
 import java.io.StringReader;
@@ -558,7 +558,7 @@ public class NamingProxy {
         this.serverPort = serverPort;
 
         String sp = System.getProperty(SystemPropertyKeyConst.NAMING_SERVER_PORT);
-        if (com.alibaba.nacos.client.utils.StringUtils.isNotBlank(sp)) {
+        if (StringUtils.isNotBlank(sp)) {
             this.serverPort = Integer.parseInt(sp);
         }
     }

client/src/main/java/com/alibaba/nacos/client/naming/utils/IoUtils.java

@@ -16,7 +16,7 @@
 package com.alibaba.nacos.client.naming.utils;
 
 
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.io.*;
 import java.nio.channels.FileChannel;

client/src/main/java/com/alibaba/nacos/client/naming/utils/NetUtils.java

@@ -15,7 +15,7 @@
  */
 package com.alibaba.nacos.client.naming.utils;
 
-import com.alibaba.nacos.client.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.net.InetAddress;
 import java.net.UnknownHostException;

client/src/main/java/com/alibaba/nacos/client/utils/ParamUtil.java

@@ -157,7 +157,7 @@ public class ParamUtil {
             || !PATTERN.matcher(endpointUrl).find()) {
             // skip retrieve from system property and retrieve directly from system env
             String endpointUrlSource = System.getenv(PropertyKeyConst.SystemEnv.ALIBABA_ALIWARE_ENDPOINT_URL);
-            if (com.alibaba.nacos.client.utils.StringUtils.isNotBlank(endpointUrlSource)) {
+            if (StringUtils.isNotBlank(endpointUrlSource)) {
                 endpointUrl = endpointUrlSource;
             }
 
@@ -182,8 +182,8 @@ public class ParamUtil {
         });
 
 
-        if (com.alibaba.nacos.client.utils.StringUtils.isBlank(endpointUrlSource)) {
+        if (StringUtils.isBlank(endpointUrlSource)) {
-            if (com.alibaba.nacos.client.utils.StringUtils.isNotBlank(defaultEndpointUrl)) {
+            if (StringUtils.isNotBlank(defaultEndpointUrl)) {
                 endpointUrl = defaultEndpointUrl;
             }
         } else {

client/src/main/java/com/alibaba/nacos/client/utils/StringUtils.java

@@ -25,7 +25,9 @@ import java.util.Locale;
  * string util
  *
  * @author Nacos
+ * @deprecated Use {@link org.apache.commons.lang3.StringUtils} instead
  */
+@Deprecated
 public class StringUtils {
 
     private static final int INDEX_NOT_FOUND = -1;

client/src/test/java/com/alibaba/nacos/client/StringUtilsTest.java

@@ -9,6 +9,7 @@ import java.util.Collection;
 import static org.junit.Assert.*;
 import static com.alibaba.nacos.client.utils.StringUtils.*;
 
+@Deprecated
 public class StringUtilsTest {
 
     @Test

config/src/main/java/com/alibaba/nacos/config/server/service/LocalDataSourceServiceImpl.java

@@ -18,8 +18,8 @@ package com.alibaba.nacos.config.server.service;
 import com.alibaba.nacos.config.server.constant.Constants;
 import com.alibaba.nacos.config.server.utils.LogUtil;
 import com.alibaba.nacos.config.server.utils.PropertyUtil;
-import com.alibaba.nacos.config.server.utils.StringUtils;
 import org.apache.commons.dbcp.BasicDataSource;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;

config/src/main/java/com/alibaba/nacos/config/server/service/dump/DumpTask.java

@@ -29,7 +29,7 @@ import com.alibaba.nacos.config.server.service.trace.ConfigTraceService;
 import com.alibaba.nacos.config.server.utils.GroupKey2;
 import com.alibaba.nacos.config.server.utils.LogUtil;
 import com.alibaba.nacos.config.server.utils.MD5;
-import com.alibaba.nacos.config.server.utils.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import java.sql.Timestamp;
 import java.util.List;

config/src/main/java/com/alibaba/nacos/config/server/service/merge/MergeTaskProcessor.java

@@ -25,9 +25,9 @@ import com.alibaba.nacos.config.server.service.ConfigDataChangeEvent;
 import com.alibaba.nacos.config.server.service.PersistService;
 import com.alibaba.nacos.config.server.service.trace.ConfigTraceService;
 import com.alibaba.nacos.config.server.utils.ContentUtils;
-import com.alibaba.nacos.config.server.utils.StringUtils;
 import com.alibaba.nacos.config.server.utils.TimeUtils;
 import com.alibaba.nacos.config.server.utils.event.EventDispatcher;
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

config/src/main/java/com/alibaba/nacos/config/server/service/notify/AsyncNotifyService.java

@@ -23,9 +23,9 @@ import com.alibaba.nacos.config.server.service.trace.ConfigTraceService;
 import com.alibaba.nacos.config.server.utils.LogUtil;
 import com.alibaba.nacos.config.server.utils.PropertyUtil;
 import com.alibaba.nacos.config.server.utils.RunningConfigUtils;
-import com.alibaba.nacos.config.server.utils.StringUtils;
 import com.alibaba.nacos.config.server.utils.event.EventDispatcher.AbstractEventListener;
 import com.alibaba.nacos.config.server.utils.event.EventDispatcher.Event;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpStatus;
 import org.apache.http.client.config.RequestConfig;

config/src/main/java/com/alibaba/nacos/config/server/utils/AppNameUtils.java

@@ -15,6 +15,8 @@
  */
 package com.alibaba.nacos.config.server.utils;
 
+import org.apache.commons.lang3.StringUtils;
+
 import java.io.File;
 
 /**

config/src/main/java/com/alibaba/nacos/config/server/utils/GroupKey.java

@@ -15,6 +15,8 @@
  */
 package com.alibaba.nacos.config.server.utils;
 
+import org.apache.commons.lang3.StringUtils;
+
 /**
  * 合成dataId+groupId的形式。对dataId和groupId中的保留字符做转义。
  *

config/src/main/java/com/alibaba/nacos/config/server/utils/GroupKey2.java

@@ -15,6 +15,8 @@
  */
 package com.alibaba.nacos.config.server.utils;
 
+import org.apache.commons.lang3.StringUtils;
+
 /**
  * Group key util
  *

config/src/main/java/com/alibaba/nacos/config/server/utils/RequestUtil.java

@@ -15,6 +15,8 @@
  */
 package com.alibaba.nacos.config.server.utils;
 
+import org.apache.commons.lang3.StringUtils;
+
 import javax.servlet.http.HttpServletRequest;
 
 /**

config/src/main/java/com/alibaba/nacos/config/server/utils/StringUtils.java

@@ -1,69 +0,0 @@
-/*
- * Copyright 1999-2018 Alibaba Group Holding Ltd.
- *
- * 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 com.alibaba.nacos.config.server.utils;
-
-/**
- * 替代common-lang中类，减少依赖
- *
- * @author Nacos
- */
-public class StringUtils {
-
-    public static final int INDEX_NOT_FOUND = -1;
-
-    public static boolean isBlank(String str) {
-        int strLen;
-        if (str == null || (strLen = str.length()) == 0) {
-            return true;
-        }
-        for (int i = 0; i < strLen; i++) {
-            if ((Character.isWhitespace(str.charAt(i)) == false)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    public static boolean isNotEmpty(String str) {
-        return !StringUtils.isEmpty(str);
-    }
-
-    public static boolean isEmpty(String str) {
-        return str == null || str.length() == 0;
-    }
-
-    public static String defaultIfEmpty(String str, String defaultStr) {
-        return StringUtils.isEmpty(str) ? defaultStr : str;
-    }
-
-    public static boolean equals(String str1, String str2) {
-        return str1 == null ? str2 == null : str1.equals(str2);
-    }
-
-    public static String substringBetween(String str, String open, String close) {
-        if (str == null || open == null || close == null) {
-            return null;
-        }
-        int start = str.indexOf(open);
-        if (start != INDEX_NOT_FOUND) {
-            int end = str.indexOf(close, start + open.length());
-            if (end != INDEX_NOT_FOUND) {
-                return str.substring(start + open.length(), end);
-            }
-        }
-        return null;
-    }
-}

console/src/main/java/com/alibaba/nacos/console/controller/NamespaceController.java

@@ -19,9 +19,9 @@ import com.alibaba.nacos.api.exception.NacosException;
 import com.alibaba.nacos.config.server.model.RestResult;
 import com.alibaba.nacos.config.server.model.TenantInfo;
 import com.alibaba.nacos.config.server.service.PersistService;
-import com.alibaba.nacos.config.server.utils.StringUtils;
 import com.alibaba.nacos.console.model.Namespace;
 import com.alibaba.nacos.console.model.NamespaceAllInfo;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;