estherbuchwalter commented on a change in pull request #2461:
URL: https://github.com/apache/drill/pull/2461#discussion_r818086953
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/MathFunctionsVarcharUtils.java
##########
@@ -18,15 +18,24 @@
package org.apache.drill.exec.expr.fn.impl;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+
import java.util.regex.Matcher;
import java.util.regex.Pattern;
-//import static java.lang.Float.NaN;
-
public class MathFunctionsVarcharUtils {
- public String validateInput(String input) {
+ public static boolean isValid(String input) {
+ if (StringUtils.isEmpty(input)) {
+ return false;
+ } else {
+ input = input.trim();
+ return NumberUtils.isCreatable(input);
+ }
+ }
+ public static String validateInput(String input) {
Review comment:
@cgivre, thanks for adding the `NumberUtils.isCreatable` function to
check for a valid number. Should I get rid of the `validateInput()` method?
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