in flink-vvp-connector-adbpg/src/main/java/org/apache/flink/connector/jdbc/table/utils/YaStringUtils.java [98:122]
public static boolean isBlank(String str, String delimiter) {
if (str == null || str.length() == 0) {
return true;
}
if (null == delimiter) {
return org.apache.commons.lang3.StringUtils.isBlank(str);
}
if (delimiter.length() == 1) {
char dChar = delimiter.charAt(0);
final int len = str.length();
for (int i = 0; i < len; i++) {
if (!Character.isWhitespace(str.charAt(i)) && dChar != str.charAt(i)) {
return false;
}
}
} else {
String[] array = org.apache.commons.lang3.StringUtils.split(str, delimiter);
for (String s : array) {
if (!org.apache.commons.lang3.StringUtils.isBlank(s)) {
return false;
}
}
}
return true;
}