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.db;
  
  import java.util.concurrent.TimeUnit;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.cassandra.config.Config;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.db.rows.Unfiltered;
  
  import org.apache.cassandra.io.sstable.CorruptSSTableException;
  import org.apache.cassandra.io.sstable.format.SSTableReader;
  import org.apache.cassandra.schema.TableMetadata;
  import org.apache.cassandra.serializers.MarshalException;
  import org.apache.cassandra.utils.NoSpamLogger;
  
  
  /**
   * Handles unfiltered validation - if configured, it checks if the provided unfiltered has
   * invalid deletions (if the local deletion time is negative or if the ttl is negative) and
   * then either logs or throws an exception if so.
   */
  public class UnfilteredValidation
  {
      private static final Logger logger = LoggerFactory.getLogger(UnfilteredValidation.class);
      private static final NoSpamLogger nospam1m = NoSpamLogger.getLogger(logger, 1, TimeUnit.MINUTES);
  
      public static void maybeValidateUnfiltered(Unfiltered unfiltered, TableMetadata metadata, DecoratedKey key, SSTableReader sstable)
      {
          Config.CorruptedTombstoneStrategy strat = DatabaseDescriptor.getCorruptedTombstoneStrategy();
          if (strat != Config.CorruptedTombstoneStrategy.disabled && unfiltered != null && !unfiltered.isEmpty())
          {
              boolean hasInvalidDeletions = false;
              try
              {
                  hasInvalidDeletions = unfiltered.hasInvalidDeletions();
              }
              catch (Throwable t) // make sure no unknown exceptions fail the read/compaction
              {
                  nospam1m.error("Could not check if Unfiltered in {} had any invalid deletions", sstable, t);
              }
  
              if (hasInvalidDeletions)
              {
                  String content;
                  try
                  {
                      content = unfiltered.toString(metadata, true);
                  }
                  catch (Throwable t)
                  {
                      content = "Could not get string representation: " + t.getMessage();
                  }
                  handleInvalid(metadata, key, sstable, content);
              }
          }
      }
  
      public static void handleInvalid(TableMetadata metadata, DecoratedKey key, SSTableReader sstable, String invalidContent)
      {
          Config.CorruptedTombstoneStrategy strat = DatabaseDescriptor.getCorruptedTombstoneStrategy();
          String keyString;
          try
          {
              keyString = metadata.partitionKeyType.getString(key.getKey());
          }
          catch (Throwable t)
          {
              keyString = "[corrupt token="+key.getToken()+"]";
          }
  
          if (strat == Config.CorruptedTombstoneStrategy.exception)
          {
              String msg = String.format("Key %s in %s.%s is invalid in %s: %s",
                                         keyString,
                                         metadata.keyspace,
                                         metadata.name,
                                         sstable,
                                         invalidContent);
              // we mark suspect to make sure this sstable is not included in future compactions - it would just keep
              // throwing exceptions
              sstable.markSuspect();
              throw new CorruptSSTableException(new MarshalException(msg), sstable.getFilename());
          }
          else if (strat == Config.CorruptedTombstoneStrategy.warn)
          {
              String msgTemplate = String.format("Key {} in %s.%s is invalid in %s: {}",
                                                 metadata.keyspace,
                                                 metadata.name,
                                                 sstable);
              nospam1m.warn(msgTemplate, keyString, invalidContent);
          }
      }
  }
  