Examples of org.apache.maven.index.UniqueArtifactFilterPostprocessor

org.apache.maven.index.UniqueArtifactFilterPostprocessor
A special reusable filter, that filters the result set to unique Repository-GroupId-ArtifactId combination, leaving out Version. There is a switch to make the Indexer-wide unique by ignoring repositories too. @author cstamas

    {
        NexusIndexer indexer = prepare();


        Query q = indexer.constructQuery( MAVEN.GROUP_ID, "commons", SearchType.SCORED );


        UniqueArtifactFilterPostprocessor filter = new UniqueArtifactFilterPostprocessor();
        filter.addField( MAVEN.GROUP_ID );
        filter.addField( MAVEN.ARTIFACT_ID );


        IteratorSearchRequest request = new IteratorSearchRequest( q, filter );


        IteratorSearchResponse response = indexer.searchIterator( request );

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    // if the user is querying against these fields, we want to return them properly
    if (filters != null) {
      for (ArtifactInfoFilter filter : filters) {
        if (filter instanceof UniqueArtifactFilterPostprocessor) {
          UniqueArtifactFilterPostprocessor uFilter = (UniqueArtifactFilterPostprocessor) filter;


          if (terms.containsKey(MavenCoordinatesSearcher.TERM_VERSION)) {
            uFilter.addField(MAVEN.VERSION);
          }
          if (terms.containsKey(MavenCoordinatesSearcher.TERM_PACKAGING)) {
            uFilter.addField(MAVEN.PACKAGING);
          }
          if (terms.containsKey(MavenCoordinatesSearcher.TERM_CLASSIFIER)) {
            uFilter.addField(MAVEN.CLASSIFIER);
          }


          // in GAV search, we _always_ expand repository
          uFilter.addField(MAVEN.REPOSITORY_ID);


          break;
        }
      }
    }

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          // filters should affect only Keyword and GAVSearch!
          // TODO: maybe we should left this to the given Searcher implementation to handle (like kw and gav
          // searcer is)
          // Downside would be that REST query params would be too far away from incoming call (too spread)
          if (searcher instanceof KeywordSearcher || searcher instanceof MavenCoordinatesSearcher) {
            UniqueArtifactFilterPostprocessor filter = new UniqueArtifactFilterPostprocessor();


            filter.addField(MAVEN.GROUP_ID);
            filter.addField(MAVEN.ARTIFACT_ID);


            if (Boolean.TRUE.equals(expandVersion)) {
              filter.addField(MAVEN.VERSION);
            }
            if (Boolean.TRUE.equals(expandPackaging)) {
              filter.addField(MAVEN.PACKAGING);
            }
            if (Boolean.TRUE.equals(expandClassifier)) {
              filter.addField(MAVEN.CLASSIFIER);
            }


            filters.add(filter);


            uniqueRGA = true;

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Related Classes of org.apache.maven.index.UniqueArtifactFilterPostprocessor

org.apache.maven.index.UniqueArtifactFilterTest

org.sonatype.nexus.index.MavenCoordinatesSearcher

org.sonatype.nexus.rest.index_.AbstractIndexPlexusResource

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