001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.actuate.autoconfigure.metrics; 018 019import io.micrometer.core.instrument.Meter; 020import io.micrometer.core.instrument.MeterRegistry; 021 022/** 023 * Callback interface that can be used to customize auto-configured {@link MeterRegistry 024 * MeterRegistries}. 025 * <p> 026 * Customizers are guaranteed to be applied before any {@link Meter} is registered with 027 * the registry. 028 * 029 * @author Jon Schneider 030 * @param <T> the registry type to customize 031 * @since 2.0.0 032 */ 033@FunctionalInterface 034public interface MeterRegistryCustomizer<T extends MeterRegistry> { 035 036 /** 037 * Customize the given {@code registry}. 038 * @param registry the registry to customize 039 */ 040 void customize(T registry); 041 042}