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https://issues.apache.org/jira/browse/HADOOP-17287?focusedWorklogId=491582&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-491582
]
ASF GitHub Bot logged work on HADOOP-17287:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 26/Sep/20 17:32
Start Date: 26/Sep/20 17:32
Worklog Time Spent: 10m
Work Description: sunchao commented on a change in pull request #2341:
URL: https://github.com/apache/hadoop/pull/2341#discussion_r495478153
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ReflectionUtils.java
##########
@@ -124,15 +124,29 @@ private static void setJobConf(Object theObject,
Configuration conf) {
*/
@SuppressWarnings("unchecked")
public static <T> T newInstance(Class<T> theClass, Configuration conf) {
+ return newInstance(theClass, conf, EMPTY_ARRAY);
+ }
+
+ /** Create an object for the given class and initialize it from conf
+ *
+ * @param theClass class of which an object is created
+ * @param conf Configuration
+ * @param argsType the types of the arguments
+ * @param values the values of the arguments
+ * @return a new object
+ */
+ @SuppressWarnings("unchecked")
+ public static <T> T newInstance(Class<T> theClass, Configuration conf,
Review comment:
Could you add a test in `TestReflectionUtils`?
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ReflectionUtils.java
##########
@@ -124,15 +124,29 @@ private static void setJobConf(Object theObject,
Configuration conf) {
*/
@SuppressWarnings("unchecked")
public static <T> T newInstance(Class<T> theClass, Configuration conf) {
+ return newInstance(theClass, conf, EMPTY_ARRAY);
+ }
+
+ /** Create an object for the given class and initialize it from conf
+ *
+ * @param theClass class of which an object is created
+ * @param conf Configuration
+ * @param argsType the types of the arguments
+ * @param values the values of the arguments
+ * @return a new object
+ */
+ @SuppressWarnings("unchecked")
+ public static <T> T newInstance(Class<T> theClass, Configuration conf,
+ Class<?>[] argsType, Object ... values) {
Review comment:
nit: `argsType` -> `argTypes`
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Issue Time Tracking
-------------------
Worklog Id: (was: 491582)
Time Spent: 20m (was: 10m)
> Support new Instance by non default constructor by ReflectionUtils
> ------------------------------------------------------------------
>
> Key: HADOOP-17287
> URL: https://issues.apache.org/jira/browse/HADOOP-17287
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 3.4.0
> Reporter: maobaolong
> Assignee: maobaolong
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
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