spring StartupEndpoint 源码
springboot StartupEndpoint 代码
文件路径:/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/startup/StartupEndpoint.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.startup;
import org.springframework.aot.hint.MemberCategory;
import org.springframework.aot.hint.RuntimeHints;
import org.springframework.aot.hint.RuntimeHintsRegistrar;
import org.springframework.aot.hint.TypeReference;
import org.springframework.boot.SpringBootVersion;
import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
import org.springframework.boot.actuate.endpoint.annotation.WriteOperation;
import org.springframework.boot.actuate.startup.StartupEndpoint.StartupEndpointRuntimeHints;
import org.springframework.boot.context.metrics.buffering.BufferingApplicationStartup;
import org.springframework.boot.context.metrics.buffering.StartupTimeline;
import org.springframework.context.annotation.ImportRuntimeHints;
/**
* {@link Endpoint @Endpoint} to expose the timeline of the
* {@link org.springframework.boot.context.metrics.buffering.BufferingApplicationStartup
* application startup}.
*
* @author Brian Clozel
* @author Chris Bono
* @since 2.4.0
*/
@Endpoint(id = "startup")
@ImportRuntimeHints(StartupEndpointRuntimeHints.class)
public class StartupEndpoint {
private final BufferingApplicationStartup applicationStartup;
/**
* Creates a new {@code StartupEndpoint} that will describe the timeline of buffered
* application startup events.
* @param applicationStartup the application startup
*/
public StartupEndpoint(BufferingApplicationStartup applicationStartup) {
this.applicationStartup = applicationStartup;
}
@ReadOperation
public StartupResponse startupSnapshot() {
StartupTimeline startupTimeline = this.applicationStartup.getBufferedTimeline();
return new StartupResponse(startupTimeline);
}
@WriteOperation
public StartupResponse startup() {
StartupTimeline startupTimeline = this.applicationStartup.drainBufferedTimeline();
return new StartupResponse(startupTimeline);
}
/**
* A description of an application startup, primarily intended for serialization to
* JSON.
*/
public static final class StartupResponse {
private final String springBootVersion;
private final StartupTimeline timeline;
private StartupResponse(StartupTimeline timeline) {
this.timeline = timeline;
this.springBootVersion = SpringBootVersion.getVersion();
}
public String getSpringBootVersion() {
return this.springBootVersion;
}
public StartupTimeline getTimeline() {
return this.timeline;
}
}
static class StartupEndpointRuntimeHints implements RuntimeHintsRegistrar {
private static final TypeReference DEFAULT_TAG = TypeReference
.of("org.springframework.boot.context.metrics.buffering.BufferedStartupStep$DefaultTag");
private static final TypeReference BUFFERED_STARTUP_STEP = TypeReference
.of("org.springframework.boot.context.metrics.buffering.BufferedStartupStep");
private static final TypeReference FLIGHT_RECORDER_TAG = TypeReference
.of("org.springframework.core.metrics.jfr.FlightRecorderStartupStep$FlightRecorderTag");
private static final TypeReference FLIGHT_RECORDER_STARTUP_STEP = TypeReference
.of("org.springframework.core.metrics.jfr.FlightRecorderStartupStep");
@Override
public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
hints.reflection().registerType(DEFAULT_TAG, (hint) -> hint.onReachableType(BUFFERED_STARTUP_STEP)
.withMembers(MemberCategory.INVOKE_PUBLIC_METHODS));
hints.reflection().registerType(FLIGHT_RECORDER_TAG, (hint) -> hint
.onReachableType(FLIGHT_RECORDER_STARTUP_STEP).withMembers(MemberCategory.INVOKE_PUBLIC_METHODS));
}
}
}
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- 本文标签: Spring Boot Spring Java
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