content: /*
   * 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 java.util.Map;
  import org.apache.bookkeeper.client.BookKeeper;
  import org.apache.bookkeeper.common.util.JsonUtil;
  import org.apache.bookkeeper.conf.ClientConfiguration;
  import org.apache.bookkeeper.conf.ServerConfiguration;
  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;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * HttpEndpointService that handle Bookkeeper delete ledger related http request.
   * The DELETE method will delete ledger with provided "ledger_id".
   */
  public class DeleteLedgerService implements HttpEndpointService {
  
      static final Logger LOG = LoggerFactory.getLogger(DeleteLedgerService.class);
  
      protected ServerConfiguration conf;
  
      public DeleteLedgerService(ServerConfiguration conf) {
          checkNotNull(conf);
          this.conf = conf;
      }
  
      @Override
      public HttpServiceResponse handle(HttpServiceRequest request) throws Exception {
          HttpServiceResponse response = new HttpServiceResponse();
          // only handle DELETE method
          if (HttpServer.Method.DELETE == request.getMethod()) {
              Map<String, String> params = request.getParams();
              if (params != null && params.containsKey("ledger_id")) {
                  ClientConfiguration clientConf = new ClientConfiguration();
                  clientConf.addConfiguration(conf);
                  try (BookKeeper bk = new BookKeeper(clientConf)) {
                      Long ledgerId = Long.parseLong(params.get("ledger_id"));
  
                      bk.deleteLedger(ledgerId);
  
                      String output = "Deleted ledger: " + ledgerId;
                      String jsonResponse = JsonUtil.toJson(output);
                      if (LOG.isDebugEnabled()) {
                          LOG.debug("output body:" + jsonResponse);
                      }
                      response.setBody(jsonResponse);
                      response.setCode(HttpServer.StatusCode.OK);
                      return response;
                  }
              } else {
                  response.setCode(HttpServer.StatusCode.NOT_FOUND);
                  response.setBody("Not ledger found. Should provide ledger_id=<id>");
                  return response;
              }
          } else {
              response.setCode(HttpServer.StatusCode.NOT_FOUND);
              response.setBody("Not found method. Should be DELETE method");
              return response;
          }
      }
  }
  