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.asterix.clienthelper.commands;
  
  import java.io.IOException;
  import java.net.HttpURLConnection;
  import java.nio.charset.StandardCharsets;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.asterix.clienthelper.Args;
  import org.apache.commons.io.IOUtils;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  public class WaitForClusterCommand extends RemoteCommand {
  
      public WaitForClusterCommand(Args args) {
          super(args);
      }
  
      @Override
      @SuppressWarnings("squid:S2142") // interrupted exception
      public int execute() throws IOException {
          final int timeoutSecs = args.getTimeoutSecs();
          log("Waiting " + (timeoutSecs > 0 ? "up to " + timeoutSecs + " seconds " : "") + "for cluster " + hostPort
                  + " to be available.");
  
          long startTime = System.currentTimeMillis();
          long timeoutMillis = TimeUnit.SECONDS.toMillis(timeoutSecs);
          boolean first = true;
          String lastState = null;
          while (true) {
              if (!first) {
                  if (timeoutMillis > 0 && (startTime + timeoutMillis < System.currentTimeMillis())) {
                      break;
                  }
                  try {
                      Thread.sleep(500);
                  } catch (InterruptedException e) {
                      return 22;
                  }
              }
              first = false;
  
              HttpURLConnection conn;
              try {
                  conn = openConnection(args.getClusterStatePath(), Method.GET);
                  if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
                      String result = IOUtils.toString(conn.getInputStream(), StandardCharsets.UTF_8.name());
                      ObjectMapper om = new ObjectMapper();
                      JsonNode json = om.readTree(result);
                      lastState = json.get("state").asText();
                      if ("ACTIVE".equals(lastState)) {
                          log("Cluster started and is ACTIVE.");
                          return 0;
                      }
                  }
              } catch (IOException e) { //NOSONAR - log or rethrow exception
                  // ignore exception, try again
              }
          }
          log("Cluster " + hostPort + " was not available before timeout of " + timeoutSecs + " seconds was exhausted"
                  + (lastState != null ? " (state: " + lastState + ")" : "") + "; check logs for more information");
          return 1;
      }
  }
  