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Avoid unguarded String concatenation for debug/trace logging

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Closes gh-22874
This commit is contained in:
Juergen Hoeller
2019-05-03 00:10:56 +02:00
parent f359c117d3
commit 31c3b8a291
7 changed files with 46 additions and 28 deletions
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6
spring-webflux/src/main/java/org/springframework/web/reactive/resource/CachingResourceTransformer.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2017 the original author or authors.
* Copyright 2002-2019 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.
@@ -69,7 +69,9 @@ public class CachingResourceTransformer implements ResourceTransformer {
Resource cachedResource = this.cache.get(resource, Resource.class);
if (cachedResource != null) {
logger.trace(exchange.getLogPrefix() + "Resource resolved from cache");
if (logger.isTraceEnabled()) {
logger.trace(exchange.getLogPrefix() + "Resource resolved from cache");
}
return Mono.just(cachedResource);
}