package org.apache.archiva.common.plexusbridge;
   
   /*
    * 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.codehaus.plexus.digest.Digester;
  import org.codehaus.plexus.digest.Md5Digester;
  import org.codehaus.plexus.digest.Sha1Digester;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.stereotype.Service;
  
  import javax.inject.Inject;
  import java.util.Arrays;
  import java.util.List;
  
  /**
   * @author Olivier Lamy
   * @since 1.4-M1
   */
  @Service( "digesterUtils" )
  public class DigesterUtils
  {
  
      private Logger log = LoggerFactory.getLogger( getClass() );
  
      private List<? extends Digester> allDigesters;
  
      @Inject
      public DigesterUtils( PlexusSisuBridge plexusSisuBridge )
          throws PlexusSisuBridgeException
      {
          this.allDigesters = plexusSisuBridge.lookupList( Digester.class );
  
          if ( allDigesters == null || allDigesters.isEmpty() )
          {
              // olamy when the TCL is not a URLClassLoader lookupList fail !
              // when using tomcat maven plugin so adding a simple hack
              log.warn( "using lookupList from sisu plexus failed so build plexus Digesters manually" );
  
              allDigesters = Arrays.asList( new Sha1Digester(), new Md5Digester() );
  
          }
  
          if ( allDigesters == null || allDigesters.isEmpty() )
          {
              throw  new PlexusSisuBridgeException( "no way to initiliaze IndexCreator" );
          }
  
          log.debug( "allIndexCreators {}", allDigesters );
  
      }
  
      public List<? extends Digester> getAllDigesters()
      {
          return allDigesters;
      }
  
      public void setAllDigesters( List<? extends Digester> allDigesters )
      {
          this.allDigesters = allDigesters;
      }
  }