hu xiaodong created HADOOP-14513:
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Summary: A little performance improvement of HarFileSystem
Key: HADOOP-14513
URL: https://issues.apache.org/jira/browse/HADOOP-14513
Project: Hadoop Common
Issue Type: Improvement
Reporter: hu xiaodong
Assignee: hu xiaodong
Priority: Trivial
In the Java source of HarFileSystem.java:
{code:title=HarFileSystem.java|borderStyle=solid}
...................
...................
private Path archivePath(Path p) {
Path retPath = null;
Path tmp = p;
// I think p.depth() need not be loop many times, depth() is a complex
calculation
for (int i=0; i< p.depth(); i++) {
if (tmp.toString().endsWith(".har")) {
retPath = tmp;
break;
}
tmp = tmp.getParent();
}
return retPath;
}
...................
...................
{code}
I think the fellow is more suitable:
{code:title=HarFileSystem.java|borderStyle=solid}
...................
...................
private Path archivePath(Path p) {
Path retPath = null;
Path tmp = p;
// just loop once
for (int i=0,depth=p.depth(); i< depth; i++) {
if (tmp.toString().endsWith(".har")) {
retPath = tmp;
break;
}
tmp = tmp.getParent();
}
return retPath;
}
...................
...................
{code}
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