Name validation

Name validation 추가

src/main/java/com/kamco/cd/kamcoback/common/utils/NameValidator.java

@@ -0,0 +1,48 @@
+package com.kamco.cd.kamcoback.common.utils;
+
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class NameValidator  {
+
+  private static final String HANGUL_REGEX = ".*\\p{IsHangul}.*";
+  private static final Pattern HANGUL_PATTERN = Pattern.compile(HANGUL_REGEX);
+
+  private static final String WHITESPACE_REGEX = ".*\\s.*";
+  private static final Pattern WHITESPACE_PATTERN = Pattern.compile(WHITESPACE_REGEX);
+
+
+  public static boolean containsKorean(String str) {
+    if (str == null || str.isEmpty()) {
+      return false;
+    }
+    Matcher matcher = HANGUL_PATTERN.matcher(str);
+    return matcher.matches();
+  }
+
+
+  public static boolean containsWhitespaceRegex(String str) {
+    if (str == null || str.isEmpty()) {
+      return false;
+    }
+
+    Matcher matcher = WHITESPACE_PATTERN.matcher(str);
+    // find()를 사용하여 문자열 내에서 패턴이 일치하는 부분이 있는지 확인
+    return matcher.find();
+  }
+
+  public static boolean isNullOrEmpty(String str) {
+    if (str == null) {
+      return true;
+    }
+
+    if (str.isEmpty()) {
+      return true;
+    }
+
+    return false;
+  }
+
+
+}