package org.apache.maven.indexer.examples.services.impl;
   
   /*
    * 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.lucene.queryparser.classic.ParseException;
  import org.apache.maven.index.ArtifactInfo;
  import org.apache.maven.indexer.examples.indexing.RepositoryIndexManager;
  import org.apache.maven.indexer.examples.indexing.RepositoryIndexer;
  import org.apache.maven.indexer.examples.indexing.SearchRequest;
  import org.apache.maven.indexer.examples.indexing.SearchResults;
  import org.apache.maven.indexer.examples.services.ArtifactIndexingService;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Component;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.LinkedHashMap;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * @author mtodorov
   */
  @Component
  public class ArtifactIndexingServiceImpl
      implements ArtifactIndexingService
  {
  
      private static final Logger LOGGER = LoggerFactory.getLogger( ArtifactIndexingServiceImpl.class );
  
      @Autowired
      private RepositoryIndexManager repositoryIndexManager;
  
  
      @Override
      public void addToIndex( String repositoryId, File artifactFile, String groupId, String artifactId, String version,
                              String extension, String classifier )
          throws IOException
      {
          final RepositoryIndexer indexer = repositoryIndexManager.getRepositoryIndex( repositoryId );
  
          indexer.addArtifactToIndex( repositoryId, artifactFile, groupId, artifactId, version, extension, classifier );
      }
  
      @Override
      public void deleteFromIndex( String repositoryId, String groupId, String artifactId, String version,
                                   String extension, String classifier )
          throws IOException
      {
          final RepositoryIndexer indexer = repositoryIndexManager.getRepositoryIndex( repositoryId );
          if ( indexer != null )
          {
              indexer.delete( Arrays.asList(
                  new ArtifactInfo( repositoryId, groupId, artifactId, version, classifier, extension ) ) );
          }
      }
  
      @Override
      public SearchResults search( SearchRequest searchRequest )
          throws IOException, ParseException
      {
          SearchResults searchResults = new SearchResults();
  
          final String repositoryId = searchRequest.getRepository();
  
          if ( repositoryId != null && !repositoryId.isEmpty() )
          {
              LOGGER.debug( "Repository: {}", repositoryId );
  
              final Map<String, Collection<ArtifactInfo>> resultsMap =
                  getResultsMap( repositoryId, searchRequest.getQuery() );
  
              if ( !resultsMap.isEmpty() )
              {
                  searchResults.setResults( resultsMap );
              }
  
              if ( LOGGER.isDebugEnabled() )
             {
                 int results = resultsMap.entrySet().iterator().next().getValue().size();
 
                 LOGGER.debug( "Results: {}", results );
             }
         }
         else
         {
             Map<String, Collection<ArtifactInfo>> resultsMap = new LinkedHashMap<>();
             for ( String repoId : repositoryIndexManager.getIndexes().keySet() )
             {
                 LOGGER.debug( "Repository: {}", repoId );
 
                 final RepositoryIndexer repositoryIndex = repositoryIndexManager.getRepositoryIndex( repoId );
                 if ( repositoryIndex != null )
                 {
                     final Set<ArtifactInfo> artifactInfoResults =
                         repositoryIndexManager.getRepositoryIndex( repoId ).search( searchRequest.getQuery() );
 
                     if ( !artifactInfoResults.isEmpty() )
                     {
                         resultsMap.put( repoId, artifactInfoResults );
                     }
 
                     LOGGER.debug( "Results: {}", artifactInfoResults.size() );
                 }
             }
 
             searchResults.setResults( resultsMap );
         }
 
         return searchResults;
     }
 
     @Override
     public boolean contains( SearchRequest searchRequest )
         throws IOException, ParseException
     {
         return !getResultsMap( searchRequest.getRepository(), searchRequest.getQuery() ).isEmpty();
     }
 
     public Map<String, Collection<ArtifactInfo>> getResultsMap( String repositoryId, String query )
         throws IOException, ParseException
     {
         Map<String, Collection<ArtifactInfo>> resultsMap = new LinkedHashMap<>();
         final Set<ArtifactInfo> artifactInfoResults =
             repositoryIndexManager.getRepositoryIndex( repositoryId ).search( query );
 
         if ( !artifactInfoResults.isEmpty() )
         {
             resultsMap.put( repositoryId, artifactInfoResults );
         }
 
         return resultsMap;
     }
 
     public RepositoryIndexManager getRepositoryIndexManager()
     {
         return repositoryIndexManager;
     }
 
     public void setRepositoryIndexManager( RepositoryIndexManager repositoryIndexManager )
     {
         this.repositoryIndexManager = repositoryIndexManager;
     }
 
 }