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[CELEBORN-1043] Convert variable ‘metric’ from String to StringBuilder in toMetric method

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### What changes were proposed in this pull request?

As Title

### Why are the changes needed?

As Title

### Does this PR introduce _any_ user-facing change?

NO

### How was this patch tested?

PASS GA

Closes #1996 from jiaoqingbo/1043.

Authored-by: jiaoqingbo <1178404354@qq.com>
Signed-off-by: zky.zhoukeyong <zky.zhoukeyong@alibaba-inc.com>
This commit is contained in:
jiaoqingbo 2023-10-17 16:51:29 +08:00 committed by zky.zhoukeyong
parent 9244cf2cf2
commit efc36ebdba
1 changed files with 4 additions and 4 deletions
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8
common/src/main/java/org/apache/celeborn/common/meta/DiskStatus.java
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@ -37,14 +37,14 @@ public enum DiskStatus {
public final String toMetric() {
String[] fragments = this.name().split("_");
String metric = "";
StringBuilder metric = new StringBuilder();
for (String fragment : fragments) {
int len = fragment.length();
if (len >= 1) {
metric += fragment.substring(0, 1).toUpperCase();
metric += fragment.substring(1, len).toLowerCase();
metric.append(fragment.substring(0, 1).toUpperCase());
metric.append(fragment.substring(1, len).toLowerCase());
}
}
return metric;
return metric.toString();
}
}