spring RedisCacheMetrics 源码
springboot RedisCacheMetrics 代码
文件路径：/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/cache/RedisCacheMetrics.java
/*
* Copyright 2012-2022 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.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.actuate.metrics.cache;
import java.util.concurrent.TimeUnit;
import io.micrometer.core.instrument.FunctionCounter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.TimeGauge;
import io.micrometer.core.instrument.binder.cache.CacheMeterBinder;
import org.springframework.data.redis.cache.RedisCache;
/**
* {@link CacheMeterBinder} for {@link RedisCache}.
*
* @author Stephane Nicoll
* @since 2.4.0
*/
public class RedisCacheMetrics extends CacheMeterBinder<RedisCache> {
private final RedisCache cache;
public RedisCacheMetrics(RedisCache cache, Iterable<Tag> tags) {
super(cache, cache.getName(), tags);
this.cache = cache;
}
@Override
protected Long size() {
return null;
}
@Override
protected long hitCount() {
return this.cache.getStatistics().getHits();
}
@Override
protected Long missCount() {
return this.cache.getStatistics().getMisses();
}
@Override
protected Long evictionCount() {
return null;
}
@Override
protected long putCount() {
return this.cache.getStatistics().getPuts();
}
@Override
protected void bindImplementationSpecificMetrics(MeterRegistry registry) {
FunctionCounter.builder("cache.removals", this.cache, (cache) -> cache.getStatistics().getDeletes())
.tags(getTagsWithCacheName()).description("Cache removals").register(registry);
FunctionCounter.builder("cache.gets", this.cache, (cache) -> cache.getStatistics().getPending())
.tags(getTagsWithCacheName()).tag("result", "pending").description("The number of pending requests")
.register(registry);
TimeGauge
.builder("cache.lock.duration", this.cache, TimeUnit.NANOSECONDS,
(cache) -> cache.getStatistics().getLockWaitDuration(TimeUnit.NANOSECONDS))
.tags(getTagsWithCacheName()).description("The time the cache has spent waiting on a lock")
.register(registry);
}
}
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- 本文标签： Spring Boot Java Spring
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