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HADOOP-17130. Configuration.getValByRegex() shouldn't be updating the results while fetching. (#2142) 

Contributed by Mukund Thakur

Change-Id: Ic0c9c44a1b14b4bfa962cede3f782a98fdfd7513
This commit is contained in:
Mukund Thakur 2020-07-16 22:39:59 +05:30 committed by Steve Loughran
parent 0d88ed2794
commit 187b161c20
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1 changed files with 4 additions and 2 deletions
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6
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
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@ -3865,6 +3865,7 @@ public Map<String,String> getValByRegex(String regex) {
Pattern p = Pattern.compile(regex);
Map<String,String> result = new HashMap<String,String>();
List<String> resultKeys = new ArrayList<>();
Matcher m;
for(Map.Entry<Object,Object> item: getProps().entrySet()) {
@ -3872,11 +3873,12 @@ public Map<String,String> getValByRegex(String regex) {
item.getValue() instanceof String) {
m = p.matcher((String)item.getKey());
if(m.find()) { // match
result.put((String) item.getKey(),
substituteVars(getProps().getProperty((String) item.getKey())));
resultKeys.add((String) item.getKey());
}
}
}
resultKeys.forEach(item ->
result.put(item, substituteVars(getProps().getProperty(item))));
return result;
}