clintropolis commented on a change in pull request #7388: Support LPAD and RPAD
sql function
URL: https://github.com/apache/incubator-druid/pull/7388#discussion_r273698758
##########
File path:
core/src/main/java/org/apache/druid/java/util/common/StringUtils.java
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@@ -360,4 +360,93 @@ public static String encodeBase64String(byte[] input)
{
return BASE64_DECODER.decode(input);
}
+
+ /**
+ * Returns the string left-padded with the string pad to a length of len
characters.
+ * If str is longer than len, the return value is shortened to len
characters.
+ *
+ * @param base The base string to be padded
+ * @param len The length of padded string
+ * @param pad The pad string
+ * @return the string left-padded with pad to a lenght of len
+ */
+ public static String lpad(String base, Integer len, String pad)
Review comment:
Could you add this link in the javadoc for this method?
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