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.cassandra.tools;
  
  import java.io.IOException;
  import java.io.PrintStream;
  import java.text.SimpleDateFormat;
  
  import org.apache.cassandra.utils.concurrent.Condition;
  import org.apache.cassandra.utils.progress.ProgressEvent;
  import org.apache.cassandra.utils.progress.ProgressEventType;
  import org.apache.cassandra.utils.progress.jmx.JMXNotificationProgressListener;
  
  import static org.apache.cassandra.utils.Clock.Global.currentTimeMillis;
  import static org.apache.cassandra.utils.concurrent.Condition.newOneTimeCondition;
  
  public class BootstrapMonitor extends JMXNotificationProgressListener
  {
      private final SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss,SSS");
      private final PrintStream out;
      private final Condition condition = newOneTimeCondition();
      private volatile Exception error;
  
      public BootstrapMonitor(PrintStream out)
      {
          this.out = out;
      }
  
      public void awaitCompletion() throws InterruptedException
      {
          condition.await();
      }
  
      @Override
      public boolean isInterestedIn(String tag)
      {
          return "bootstrap".equals(tag);
      }
  
      @Override
      public void handleNotificationLost(long timestamp, String message)
      {
          super.handleNotificationLost(timestamp, message);
      }
  
      @Override
      public void handleConnectionClosed(long timestamp, String message)
      {
          handleConnectionFailed(timestamp, message);
      }
  
      @Override
      public void handleConnectionFailed(long timestamp, String message)
      {
          error = new IOException(String.format("[%s] JMX connection closed. (%s)",
                                                format.format(timestamp), message));
          out.println(error.getMessage());
          condition.signalAll();
      }
  
      @Override
      public void progress(String tag, ProgressEvent event)
      {
          ProgressEventType type = event.getType();
          String message = String.format("[%s] %s", format.format(currentTimeMillis()), event.getMessage());
          if (type == ProgressEventType.PROGRESS)
          {
              message = message + " (progress: " + (int)event.getProgressPercentage() + "%)";
          }
          out.println(message);
          if (type == ProgressEventType.ERROR)
          {
              error = new RuntimeException(String.format("Bootstrap resume has failed with error: %s", message));
              condition.signalAll();
          }
          if (type == ProgressEventType.COMPLETE)
          {
              condition.signalAll();
          }
      }
  
      public Exception getError()
      {
          return error;
      }
  }
  