Examples of org.apache.maven.index.NexusIndexer

org.apache.maven.index.NexusIndexer
x id (usually the same as repository id) repositoryId, // repository id directory, // Lucene directory where index is stored repositoryDir, // local repository dir or null for remote repo repositoryUrl, // repository url, used by index updater indexUpdateUrl, // index update url or null if derived from repositoryUrl false, false ); An indexing context could be populated using one of {@link #scan(IndexingContext)}, {@link #addArtifactToIndex(ArtifactContext,IndexingContext)} or{@link #deleteArtifactFromIndex(ArtifactContext,IndexingContext)} methods.
An {@link IndexUpdater} could be used to fetch indexes from remote repositories. These indexers could be createdusing the {@link NexusIndexerCli} command line tool or {@link IndexPacker} API.
Once index is populated you can perform search queries using field names declared in the {@link ArtifactInfo}:
```
 // run search query BooleanQuery q = new BooleanQuery(); q.add(indexer.constructQuery(ArtifactInfo.GROUP_ID, term), Occur.SHOULD); q.add(indexer.constructQuery(ArtifactInfo.ARTIFACT_ID, term), Occur.SHOULD); q.add(new PrefixQuery(new Term(ArtifactInfo.SHA1, term)), Occur.SHOULD); FlatSearchRequest request = new FlatSearchRequest(q); FlatSearchResponse response = indexer.searchFlat(request); ... 
```
Query could be also constructed using a convenience {@link NexusIndexer#constructQuery(Field,SearchExpression)}method that handles creation of the wildcard queries. Also see {@link DefaultQueryCreator} for more details onsupported queries. @see IndexingContext @see IndexUpdater @see DefaultQueryCreator @author Jason van Zyl @author Tamas Cservenak @author Eugene Kuleshov @deprecated Use {@link Indexer} instead.


    public void cleanupIndex()
        throws Exception
    {
        log.info( "cleanup IndexingContext" );
        NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );
        for ( IndexingContext context : nexusIndexer.getIndexingContexts().values() )
        {
            nexusIndexer.removeIndexingContext( context, true );
        }


    }

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        throws RepositoryAdminException
    {


        try
        {
            NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );


            IndexingContext context = nexusIndexer.getIndexingContexts().get( repository.getId() );
            if ( context != null )
            {
                // delete content only if directory exists
                nexusIndexer.removeIndexingContext( context,
                                                    deleteContent && context.getIndexDirectoryFile().exists() );
            }
        }
        catch ( PlexusSisuBridgeException e )
        {

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  @Override
  public byte[] generateFile(RepositoryData data)
    throws Exception
  {
    NexusIndexer indexer = data.getIndexer();
    IndexingContext indexingContext = data.getIndexingContext();


        Query pq = indexer.constructQuery(MAVEN.PACKAGING, "deb", SearchType.EXACT);


        IteratorSearchRequest sreq = new IteratorSearchRequest(pq, indexingContext);
        IteratorSearchResponse hits = indexer.searchIterator(sreq);


        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        OutputStreamWriter w = new OutputStreamWriter(baos);


        for (ArtifactInfo hit : hits) {

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    @Test
    public void testMavenIndexerLoad()
        throws Exception
    {
        NexusIndexer nexusIndexer = plexusShimComponent.lookup( NexusIndexer.class );
        Assert.assertNotNull( nexusIndexer );
    }

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    protected void removeMavenIndexes()
        throws Exception
    {
        NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );


        for ( IndexingContext indexingContext : nexusIndexer.getIndexingContexts().values() )
        {
            nexusIndexer.removeIndexingContext( indexingContext, false );
        }
    }

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        throws RepositoryAdminException
    {


        try
        {
            NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );


            IndexingContext context = nexusIndexer.getIndexingContexts().get( repository.getId() );
            if ( context != null )
            {
                // delete content only if directory exists
                nexusIndexer.removeIndexingContext( context,
                                                    deleteContent && context.getIndexDirectoryFile().exists() );
            }
        }
        catch ( PlexusSisuBridgeException e )
        {

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    protected void removeMavenIndexes()
        throws Exception
    {
        NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );


        for ( IndexingContext indexingContext : nexusIndexer.getIndexingContexts().values() )
        {
            nexusIndexer.removeIndexingContext( indexingContext, false );
        }
    }

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    public void shutdown()
        throws Exception
    {


        log.info( "cleanup IndexingContext" );
        NexusIndexer nexusIndexer = plexusSisuBridge.lookup( NexusIndexer.class );
        for ( IndexingContext context : nexusIndexer.getIndexingContexts().values() )
        {
            nexusIndexer.removeIndexingContext( context, true );
        }
    }

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