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.audit;
  
  import java.util.Map;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.apache.cassandra.audit.AuditLogEntry.DEFAULT_FIELD_SEPARATOR;
  import static org.apache.cassandra.audit.AuditLogEntry.DEFAULT_KEY_VALUE_SEPARATOR;
  
  /**
   * Synchronous, file-based audit logger; just uses the standard logging mechansim.
   */
  public class FileAuditLogger implements IAuditLogger
  {
      protected static final Logger logger = LoggerFactory.getLogger(FileAuditLogger.class);
  
      private volatile boolean enabled;
      private final String keyValueSeparator;
      private final String fieldSeparator;
  
      public FileAuditLogger(Map<String, String> params)
      {
          enabled = true;
          keyValueSeparator = params != null
                              ? params.getOrDefault("key_value_separator", DEFAULT_KEY_VALUE_SEPARATOR)
                              : DEFAULT_KEY_VALUE_SEPARATOR;
          fieldSeparator = params != null
                           ? params.getOrDefault("field_separator", DEFAULT_FIELD_SEPARATOR)
                           : DEFAULT_FIELD_SEPARATOR;
      }
  
      @Override
      public boolean isEnabled()
      {
          return enabled;
      }
  
      @Override
      public void log(AuditLogEntry auditLogEntry)
      {
          // don't bother with the volatile read of enabled here. just go ahead and log, other components
          // will check the enbaled field.
          logger.info(auditLogEntry.getLogString(keyValueSeparator, fieldSeparator));
      }
  
      @Override
      public void stop()
      {
          enabled = false;
      }
  }
  