Merge pull request #20928 from dreis2211

* pr/20928:
  Polish "Optimize AutoConfigurationImportSelector.filter()"
  Optimize AutoConfigurationImportSelector.filter()

Closes gh-20928
This commit is contained in:
Stephane Nicoll 2020-04-16 14:16:02 +02:00
commit 866147405c
1 changed files with 5 additions and 7 deletions

View File

@ -1,5 +1,5 @@
/*
* Copyright 2012-2019 the original author or authors.
* Copyright 2012-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -239,14 +239,12 @@ public class AutoConfigurationImportSelector implements DeferredImportSelector,
private List<String> filter(List<String> configurations, AutoConfigurationMetadata autoConfigurationMetadata) {
long startTime = System.nanoTime();
String[] candidates = StringUtils.toStringArray(configurations);
boolean[] skip = new boolean[candidates.length];
boolean skipped = false;
for (AutoConfigurationImportFilter filter : getAutoConfigurationImportFilters()) {
invokeAwareMethods(filter);
boolean[] match = filter.match(candidates, autoConfigurationMetadata);
for (int i = 0; i < match.length; i++) {
if (!match[i]) {
skip[i] = true;
candidates[i] = null;
skipped = true;
}
@ -256,9 +254,9 @@ public class AutoConfigurationImportSelector implements DeferredImportSelector,
return configurations;
}
List<String> result = new ArrayList<>(candidates.length);
for (int i = 0; i < candidates.length; i++) {
if (!skip[i]) {
result.add(candidates[i]);
for (String candidate : candidates) {
if (candidate != null) {
result.add(candidate);
}
}
if (logger.isTraceEnabled()) {
@ -266,7 +264,7 @@ public class AutoConfigurationImportSelector implements DeferredImportSelector,
logger.trace("Filtered " + numberFiltered + " auto configuration class in "
+ TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startTime) + " ms");
}
return new ArrayList<>(result);
return result;
}
protected List<AutoConfigurationImportFilter> getAutoConfigurationImportFilters() {