spring OptionalLiveReloadServer 源码
springboot OptionalLiveReloadServer 代码
文件路径：/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/autoconfigure/OptionalLiveReloadServer.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.devtools.autoconfigure;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.boot.devtools.livereload.LiveReloadServer;
import org.springframework.core.log.LogMessage;
/**
* Manages an optional {@link LiveReloadServer}. The {@link LiveReloadServer} may
* gracefully fail to start (e.g. because of a port conflict) or may be omitted entirely.
*
* @author Phillip Webb
* @since 1.3.0
*/
public class OptionalLiveReloadServer implements InitializingBean {
private static final Log logger = LogFactory.getLog(OptionalLiveReloadServer.class);
private LiveReloadServer server;
/**
* Create a new {@link OptionalLiveReloadServer} instance.
* @param server the server to manage or {@code null}
*/
public OptionalLiveReloadServer(LiveReloadServer server) {
this.server = server;
}
@Override
public void afterPropertiesSet() throws Exception {
startServer();
}
void startServer() {
if (this.server != null) {
try {
int port = this.server.getPort();
if (!this.server.isStarted()) {
port = this.server.start();
}
logger.info(LogMessage.format("LiveReload server is running on port %s", port));
}
catch (Exception ex) {
logger.warn("Unable to start LiveReload server");
logger.debug("Live reload start error", ex);
this.server = null;
}
}
}
/**
* Trigger LiveReload if the server is up and running.
*/
public void triggerReload() {
if (this.server != null) {
this.server.triggerReload();
}
}
}
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- 本文标签： Java Spring Spring Boot
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