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.utils.logging;
  
  import java.util.Set;
  
  import com.google.common.collect.ImmutableSet;
  
  import ch.qos.logback.classic.spi.LoggingEvent;
  import org.apache.cassandra.audit.FileAuditLogger;
  import org.apache.cassandra.db.virtual.LogMessagesTable;
  
  /**
   * Appends Cassandra logs to virtual table system_views.system_logs
   */
  public final class VirtualTableAppender extends AbstractVirtualTableAppender
  {
      public static final String APPENDER_NAME = "CQLLOG";
  
      private static final Set<String> forbiddenLoggers = ImmutableSet.of(FileAuditLogger.class.getName());
  
      private LogMessagesTable logs;
  
      public VirtualTableAppender()
      {
          super(LogMessagesTable.LOGS_VIRTUAL_TABLE_DEFAULT_ROWS);
      }
  
      @Override
      protected void append(LoggingEvent eventObject)
      {
          if (!forbiddenLoggers.contains(eventObject.getLoggerName()))
              logs = appendToVirtualTable(LogMessagesTable.class, logs, eventObject, LogMessagesTable.TABLE_NAME);
      }
  }
  