org.springframework.boot.devtools.restart.server.HttpRestartServer Maven / Gradle / Ivy
/*
* Copyright 2012-2021 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.restart.server;
import java.io.IOException;
import java.io.ObjectInputStream;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.boot.devtools.restart.classloader.ClassLoaderFiles;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.util.Assert;
/**
* An HTTP server that can be used to upload updated {@link ClassLoaderFiles} and trigger
* restarts.
*
* @author Phillip Webb
* @since 1.3.0
* @see RestartServer
*/
public class HttpRestartServer {
private static final Log logger = LogFactory.getLog(HttpRestartServer.class);
private final RestartServer server;
/**
* Create a new {@link HttpRestartServer} instance.
* @param sourceDirectoryUrlFilter the source filter used to link remote directory to
* the local classpath
*/
public HttpRestartServer(SourceDirectoryUrlFilter sourceDirectoryUrlFilter) {
Assert.notNull(sourceDirectoryUrlFilter, "SourceDirectoryUrlFilter must not be null");
this.server = new RestartServer(sourceDirectoryUrlFilter);
}
/**
* Create a new {@link HttpRestartServer} instance.
* @param restartServer the underlying restart server
*/
public HttpRestartServer(RestartServer restartServer) {
Assert.notNull(restartServer, "RestartServer must not be null");
this.server = restartServer;
}
/**
* Handle a server request.
* @param request the request
* @param response the response
* @throws IOException in case of I/O errors
*/
public void handle(ServerHttpRequest request, ServerHttpResponse response) throws IOException {
try {
Assert.state(request.getHeaders().getContentLength() > 0, "No content");
ObjectInputStream objectInputStream = new ObjectInputStream(request.getBody());
ClassLoaderFiles files = (ClassLoaderFiles) objectInputStream.readObject();
objectInputStream.close();
this.server.updateAndRestart(files);
response.setStatusCode(HttpStatus.OK);
}
catch (Exception ex) {
logger.warn("Unable to handler restart server HTTP request", ex);
response.setStatusCode(HttpStatus.INTERNAL_SERVER_ERROR);
}
}
}