org.apache.bookkeeper.server.http.service.BookieIsReadyService Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* http://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.apache.bookkeeper.server.http.service;
import static com.google.common.base.Preconditions.checkNotNull;
import org.apache.bookkeeper.bookie.Bookie;
import org.apache.bookkeeper.bookie.StateManager;
import org.apache.bookkeeper.http.HttpServer;
import org.apache.bookkeeper.http.service.HttpEndpointService;
import org.apache.bookkeeper.http.service.HttpServiceRequest;
import org.apache.bookkeeper.http.service.HttpServiceResponse;
/**
* HttpEndpointService that returns 200 if the bookie is ready.
*/
public class BookieIsReadyService implements HttpEndpointService {
private final Bookie bookie;
public BookieIsReadyService(Bookie bookie) {
this.bookie = checkNotNull(bookie);
}
@Override
public HttpServiceResponse handle(HttpServiceRequest request) throws Exception {
HttpServiceResponse response = new HttpServiceResponse();
if (HttpServer.Method.GET != request.getMethod()) {
response.setCode(HttpServer.StatusCode.NOT_FOUND);
response.setBody("Only support GET method check if bookie is ready.");
return response;
}
StateManager sm = bookie.getStateManager();
if (sm.isRunning() && !sm.isShuttingDown()) {
response.setCode(HttpServer.StatusCode.OK);
response.setBody("OK");
} else {
response.setCode(HttpServer.StatusCode.SERVICE_UNAVAILABLE);
response.setBody("Bookie is not fully started yet");
}
return response;
}
}