content: package org.apache.archiva.metadata.repository.cassandra;
  
  /*
   * 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.
   */
  
  /**
   * @author Olivier Lamy
   * @since 2.0.0
   */
  public class CassandraUtils
  {
  
      private static final String EMPTY_VALUE = "";
  
      public static final String SEPARATOR = "->";
  
      public static String generateKey( final String... bases )
      {
          final StringBuilder builder = new StringBuilder();
          if ( bases == null || bases.length == 0 )
          {
              return builder.toString();
          }
  
          for ( final String s : bases )
          {
              if ( s != null )
              {
                  builder.append( s );
              }
              else
              {
                  builder.append( EMPTY_VALUE );
              }
              builder.append( SEPARATOR );
          }
          if ( builder.length() > 0 )
          {
              builder.setLength( builder.length() - SEPARATOR.length() );
          }
          return builder.toString();
      }
  
  
  
      private CassandraUtils()
      {
          // no-op
      }
  
  }
  