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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (LANG-1495) Add Overloading Methods To EnumUtils
Date Mon, 28 Oct 2019 05:58:00 GMT

     [ https://issues.apache.org/jira/browse/LANG-1495?focusedWorklogId=334775&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-334775
]

ASF GitHub Bot logged work on LANG-1495:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 28/Oct/19 05:57
            Start Date: 28/Oct/19 05:57
    Worklog Time Spent: 10m 
      Work Description: vlcheong commented on pull request #475: LANG-1495 Update EnumUtils.java
URL: https://github.com/apache/commons-lang/pull/475#discussion_r339410238
 
 

 ##########
 File path: src/main/java/org/apache/commons/lang3/EnumUtils.java
 ##########
 @@ -119,13 +119,29 @@ public EnumUtils() {
      * @return the enum, null if not found
      */
     public static <E extends Enum<E>> E getEnum(final Class<E> enumClass,
final String enumName) {
+        return getEnum(enumClass, enumName, null);
+    }
+
+    /**
+     * <p>Gets the enum for the class, returning {@code defaultEnum} if not found.</p>
+     *
+     * <p>This method differs from {@link Enum#valueOf} in that it does not throw an
exception
+     * for an invalid enum name.</p>
+     *
+     * @param <E> the type of the enumeration
+     * @param enumClass   the class of the enum to query, not null
+     * @param enumName    the enum name, null returns default enum
+     * @param defaultEnum the default enum
+     * @return the enum, default enum if not found
 
 Review comment:
   @Stzx, may I know what version number should I put ?
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 334775)
    Time Spent: 40m  (was: 0.5h)

> Add Overloading Methods To EnumUtils
> ------------------------------------
>
>                 Key: LANG-1495
>                 URL: https://issues.apache.org/jira/browse/LANG-1495
>             Project: Commons Lang
>          Issue Type: Improvement
>            Reporter: Cheong Voon Leong
>            Priority: Trivial
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> I would like to add 2 overloading methods to EnumUtils, getEnum and getEnumIgnoreCase.
> Instead of returning null, if not found. In my opinion I think allowing user to set a
default result is a better approach or return an Optional.
>   
> {noformat}
> public static <E extends Enum<E>> E getEnum(final Class<E> enumClass,
final String enumName) {
>  return getEnum(enumClass, enumName, null);
>  }
> public static <E extends Enum<E>> E getEnum(final Class<E> enumClass,
final String enumName, E defaultEnum) {
>  if (enumName == null) {
>  return defaultEnum;
>  }
>  try {
>  return Enum.valueOf(enumClass, enumName);
>  } catch (final IllegalArgumentException ex) {
>  return defaultEnum;
>  }
>  }
> {noformat}
>   
>  
> {code:java}
> public static <E extends Enum<E>> E getEnumIgnoreCase(final Class<E>
enumClass, final String enumName) {
>  return getEnumIgnoreCase(enumClass, enumName, null);
>  }
> public static <E extends Enum<E>> E getEnumIgnoreCase(final Class<E>
enumClass, final String enumName, E defaultEnum) {
>  if (enumName == null || !enumClass.isEnum()) {
>  return defaultEnum;
>  }
>  for (final E each : enumClass.getEnumConstants()) {
>  if (each.name().equalsIgnoreCase(enumName)) {
>  return each;
>  }
>  }
>  return defaultEnum;
>  }
> {code}
>  



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