source.dussan.org Git - archiva.git/blob

   1 package org.apache.archiva.indexer.search;
   2
   3 /*
   4  * Licensed to the Apache Software Foundation (ASF) under one
   5  * or more contributor license agreements.  See the NOTICE file
   6  * distributed with this work for additional information
   7  * regarding copyright ownership.  The ASF licenses this file
   8  * to you under the Apache License, Version 2.0 (the
   9  * "License"); you may not use this file except in compliance
  10  * with the License.  You may obtain a copy of the License at
  11  *
  12  *  http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  17  * KIND, either express or implied.  See the License for the
  18  * specific language governing permissions and limitations
  19  * under the License.
  20  */
  21
  22 import java.io.File;
  23 import java.io.IOException;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Set;
  27
  28 import org.apache.archiva.indexer.util.SearchUtil;
  29 import org.apache.lucene.search.BooleanQuery;
  30 import org.apache.lucene.search.BooleanClause.Occur;
  31 import org.apache.maven.archiva.configuration.ArchivaConfiguration;
  32 import org.apache.maven.archiva.configuration.Configuration;
  33 import org.apache.maven.archiva.configuration.ManagedRepositoryConfiguration;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36 import org.sonatype.nexus.index.ArtifactInfo;
  37 import org.sonatype.nexus.index.FlatSearchRequest;
  38 import org.sonatype.nexus.index.FlatSearchResponse;
  39 import org.sonatype.nexus.index.NexusIndexer;
  40 import org.sonatype.nexus.index.context.IndexingContext;
  41 import org.sonatype.nexus.index.context.UnsupportedExistingLuceneIndexException;
  42
  43 /**
  44  * RepositorySearch implementation which uses the Nexus Indexer for searching.
  45  */
  46 public class NexusRepositorySearch
  47     implements RepositorySearch
  48 {
  49     private static final Logger log = LoggerFactory.getLogger( NexusRepositorySearch.class );
  50
  51     private NexusIndexer indexer;
  52
  53     private ArchivaConfiguration archivaConfig;
  54
  55     public NexusRepositorySearch( NexusIndexer indexer, ArchivaConfiguration archivaConfig )
  56     {
  57         this.indexer = indexer;
  58         this.archivaConfig = archivaConfig;
  59     }
  60
  61     /**
  62      * @see RepositorySearch#search(String, List, String, SearchResultLimits, List)
  63      */
  64     public SearchResults search( String principal, List<String> selectedRepos, String term, SearchResultLimits limits,
  65                                  List<String> previousSearchTerms )
  66         throws RepositorySearchException
  67     {
  68         addIndexingContexts( selectedRepos );
  69
  70         // since upgrade to nexus 2.0.0, query has changed from g:[QUERIED TERM]* to g:*[QUERIED TERM]*
  71         //      resulting to more wildcard searches so we need to increase max clause count
  72         BooleanQuery.setMaxClauseCount( Integer.MAX_VALUE );
  73         BooleanQuery q = new BooleanQuery();
  74
  75         if( previousSearchTerms == null || previousSearchTerms.isEmpty() )
  76         {
  77             constructQuery( term, q );
  78         }
  79         else
  80         {
  81             for( String previousTerm : previousSearchTerms )
  82             {
  83                 BooleanQuery iQuery = new BooleanQuery();
  84                 constructQuery( previousTerm, iQuery );
  85
  86                 q.add( iQuery, Occur.MUST );
  87             }
  88
  89             BooleanQuery iQuery = new BooleanQuery();
  90             constructQuery( term, iQuery );
  91             q.add( iQuery, Occur.MUST );
  92         }
  93
  94         return search( limits, q );
  95     }
  96
  97     /**
  98      * @see RepositorySearch#search(String, SearchFields, SearchResultLimits)
  99      */
 100     public SearchResults search( String principal, SearchFields searchFields, SearchResultLimits limits )
 101         throws RepositorySearchException
 102     {
 103         if( searchFields.getRepositories() == null )
 104         {
 105             throw new RepositorySearchException( "Repositories cannot be null." );
 106         }
 107
 108         addIndexingContexts( searchFields.getRepositories() );
 109
 110         BooleanQuery q = new BooleanQuery();
 111         if( searchFields.getGroupId() != null && !"".equals( searchFields.getGroupId() ) )
 112         {
 113             q.add( indexer.constructQuery( ArtifactInfo.GROUP_ID, searchFields.getGroupId() ), Occur.MUST );
 114         }
 115
 116         if( searchFields.getArtifactId() != null && !"".equals( searchFields.getArtifactId() ) )
 117         {
 118             q.add( indexer.constructQuery( ArtifactInfo.ARTIFACT_ID, searchFields.getArtifactId() ), Occur.MUST );
 119         }
 120
 121         if( searchFields.getVersion() != null && !"".equals( searchFields.getVersion() ) )
 122         {
 123             q.add( indexer.constructQuery( ArtifactInfo.VERSION, searchFields.getVersion() ), Occur.MUST );
 124         }
 125
 126         if( searchFields.getPackaging() != null && !"".equals( searchFields.getPackaging() ) )
 127         {
 128             q.add( indexer.constructQuery( ArtifactInfo.PACKAGING, searchFields.getPackaging() ), Occur.MUST );
 129         }
 130
 131         if( searchFields.getClassName() != null && !"".equals( searchFields.getClassName() ) )
 132         {
 133             q.add( indexer.constructQuery( ArtifactInfo.NAMES, searchFields.getClassName() ), Occur.MUST );
 134         }
 135
 136         if( q.getClauses() == null || q.getClauses().length <= 0 )
 137         {
 138             throw new RepositorySearchException( "No search fields set." );
 139         }
 140
 141         return search( limits, q );
 142     }
 143
 144     private SearchResults search( SearchResultLimits limits, BooleanQuery q )
 145         throws RepositorySearchException
 146     {
 147         try
 148         {
 149             FlatSearchRequest request = new FlatSearchRequest( q );
 150             FlatSearchResponse response = indexer.searchFlat( request );
 151
 152             if( response == null || response.getTotalHits() == 0 )
 153             {
 154                 SearchResults results = new SearchResults();
 155                 results.setLimits( limits );
 156                 return results;
 157             }
 158
 159             return convertToSearchResults( response, limits );
 160         }
 161         catch ( IOException e )
 162         {
 163             throw new RepositorySearchException( e );
 164         }
 165         finally
 166         {
 167             Map<String, IndexingContext> indexingContexts = indexer.getIndexingContexts();
 168             Set<String> keys = indexingContexts.keySet();
 169             for( String key : keys )
 170             {
 171                 try
 172                 {
 173                     indexer.removeIndexingContext( indexingContexts.get( key ), false );
 174                     log.debug( "Indexing context '" + key + "' removed from search." );
 175                 }
 176                 catch ( IOException e )
 177                 {
 178                     log.warn( "IOException occurred while removing indexing content '" + key  + "'." );
 179                     continue;
 180                 }
 181             }
 182         }
 183     }
 184
 185     private void constructQuery( String term, BooleanQuery q )
 186     {
 187         q.add( indexer.constructQuery( ArtifactInfo.GROUP_ID, term ), Occur.SHOULD );
 188         q.add( indexer.constructQuery( ArtifactInfo.ARTIFACT_ID, term ), Occur.SHOULD );
 189         q.add( indexer.constructQuery( ArtifactInfo.VERSION, term ), Occur.SHOULD );
 190         q.add( indexer.constructQuery( ArtifactInfo.PACKAGING, term ), Occur.SHOULD );
 191         q.add( indexer.constructQuery( ArtifactInfo.NAMES, term ), Occur.SHOULD );
 192     }
 193
 194
 195     private void addIndexingContexts( List<String> selectedRepos )
 196     {
 197         for( String repo : selectedRepos )
 198         {
 199             try
 200             {
 201                 Configuration config = archivaConfig.getConfiguration();
 202                 ManagedRepositoryConfiguration repoConfig = config.findManagedRepositoryById( repo );
 203
 204                 if( repoConfig != null )
 205                 {
 206                     String indexDir = repoConfig.getIndexDir();
 207                     File indexDirectory = null;
 208                     if( indexDir != null && !"".equals( indexDir ) )
 209                     {
 210                         indexDirectory = new File( repoConfig.getIndexDir() );
 211                     }
 212                     else
 213                     {
 214                         indexDirectory = new File( repoConfig.getLocation(), ".indexer" );
 215                     }
 216
 217                     IndexingContext context =
 218                         indexer.addIndexingContext( repoConfig.getId(), repoConfig.getId(), new File( repoConfig.getLocation() ),
 219                                                     indexDirectory, null, null, NexusIndexer.FULL_INDEX );
 220                     context.setSearchable( repoConfig.isScanned() );
 221                 }
 222                 else
 223                 {
 224                     log.warn( "Repository '" + repo + "' not found in configuration." );
 225                 }
 226             }
 227             catch ( UnsupportedExistingLuceneIndexException e )
 228             {
 229                 log.warn( "Error accessing index of repository '" + repo + "' : " + e.getMessage() );
 230                 continue;
 231             }
 232             catch ( IOException e )
 233             {
 234                 log.warn( "IO error occured while accessing index of repository '" + repo + "' : " + e.getMessage() );
 235                 continue;
 236             }
 237         }
 238     }
 239
 240     private SearchResults convertToSearchResults( FlatSearchResponse response, SearchResultLimits limits )
 241     {
 242         SearchResults results = new SearchResults();
 243         Set<ArtifactInfo> artifactInfos = response.getResults();
 244
 245         for ( ArtifactInfo artifactInfo : artifactInfos )
 246         {
 247             String id = SearchUtil.getHitId( artifactInfo.groupId, artifactInfo.artifactId );
 248             Map<String, SearchResultHit> hitsMap = results.getHitsMap();
 249
 250             SearchResultHit hit = hitsMap.get( id );
 251             if ( hit != null )
 252             {
 253                 hit.addVersion( artifactInfo.version );
 254             }
 255             else
 256             {
 257                 hit = new SearchResultHit();
 258                 hit.setArtifactId( artifactInfo.artifactId );
 259                 hit.setGroupId( artifactInfo.groupId );
 260                 // do we still need to set the repository id even though we're merging everything?
 261                 //hit.setRepositoryId( artifactInfo.repository );
 262                 hit.setUrl( artifactInfo.repository + "/" + artifactInfo.fname );
 263                 if( !hit.getVersions().contains( artifactInfo.version ) )
 264                 {
 265                     hit.addVersion( artifactInfo.version );
 266                 }
 267             }
 268
 269             results.addHit( id, hit );
 270         }
 271
 272         results.setTotalHits( results.getHitsMap().size() );
 273         results.setLimits( limits );
 274
 275         if( limits == null || limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
 276         {
 277             return results;
 278         }
 279         else
 280         {
 281             return paginate( results );
 282         }
 283     }
 284
 285     private SearchResults paginate( SearchResults results )
 286     {
 287         SearchResultLimits limits = results.getLimits();
 288         SearchResults paginated = new SearchResults();
 289
 290         int fetchCount = limits.getPageSize();
 291         int offset = ( limits.getSelectedPage() * limits.getPageSize() );
 292
 293         if( fetchCount > results.getTotalHits() )
 294         {
 295             fetchCount = results.getTotalHits();
 296         }
 297
 298         // Goto offset.
 299         if ( offset < results.getTotalHits() )
 300         {
 301             // only process if the offset is within the hit count.
 302             for ( int i = 0; i < fetchCount; i++ )
 303             {
 304                 // Stop fetching if we are past the total # of available hits.
 305                 if ( offset + i >= results.getHits().size() )
 306                 {
 307                     break;
 308                 }
 309
 310                 SearchResultHit hit = results.getHits().get( ( offset + i ) );
 311                 if( hit != null )
 312                 {
 313                     String id = SearchUtil.getHitId( hit.getGroupId(), hit.getArtifactId() );
 314                     paginated.addHit( id, hit );
 315                 }
 316                 else
 317                 {
 318                     break;
 319                 }
 320             }
 321         }
 322         paginated.setTotalHits( results.getTotalHits() );
 323         paginated.setLimits( limits );
 324
 325         return paginated;
 326     }
 327 }