package org.apache.archiva.audit;
   
   /*
    * 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.
   */
  
  import org.apache.archiva.metadata.model.facets.AuditEvent;
  import org.apache.archiva.repository.events.AuditListener;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.stereotype.Service;
  
  /**
   * AuditLog - Audit Log.
   * 
   *
   *
   */
  @Service("auditListener#logging")
  public class AuditLog
      implements AuditListener
  {
      public static final Logger logger = LoggerFactory.getLogger( "org.apache.archiva.AuditLog" );
  
      private static final String NONE = "-";
  
      private static final char DELIM = ' ';
  
      /**
       * Creates a log message in the following format ...
       * "{repository_id} {user_id} {remote_ip} \"{resource}\" \"{action}\""
       */
      @Override
      public void auditEvent( AuditEvent event )
      {
          StringBuilder msg = new StringBuilder();
          msg.append( checkNull( event.getRepositoryId() ) ).append( DELIM );
          msg.append( event.getUserId() ).append( DELIM );
          msg.append( checkNull( event.getRemoteIP() ) ).append( DELIM );
          msg.append( '\"' ).append( checkNull( event.getResource() ) ).append( '\"' ).append( DELIM );
          msg.append( '\"' ).append( event.getAction() ).append( '\"' );
          logger.info( msg.toString() );
      }
  
      private String checkNull( String s )
      {
          return s != null ? s : NONE;
      }
  }