package org.apache.maven.index.creator;
   
   /*
    * 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 java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.maven.index.context.IndexCreator;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * An abstract base class for {@link IndexCreator} implementations.
   * 
   * @author Jason van Zyl
   */
  public abstract class AbstractIndexCreator
      implements IndexCreator
  {
  
      private final Logger logger = LoggerFactory.getLogger( getClass() );
  
      protected Logger getLogger()
      {
          return logger;
      }
  
      private final String id;
  
      private final List<String> creatorDependencies;
  
      protected AbstractIndexCreator( final String id )
      {
          this( id, null );
      }
  
      protected AbstractIndexCreator( final String id, final List<String> creatorDependencies )
      {
          this.id = id;
  
          final ArrayList<String> deps = new ArrayList<String>();
  
          if ( creatorDependencies != null && !creatorDependencies.isEmpty() )
          {
              deps.addAll( creatorDependencies );
          }
  
          this.creatorDependencies = Collections.unmodifiableList( deps );
      }
  
      public String getId()
      {
          return id;
      }
  
      public List<String> getCreatorDependencies()
      {
          return creatorDependencies;
      }
  
      public static String bos( boolean b )
      {
          return b ? "1" : "0";
      }
  
      public static boolean sob( String b )
      {
          return b.equals( "1" );
      }
  }