1 package org.apache.maven.index.search.grouping;
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22 import java.util.Comparator;
23 import java.util.Map;
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25 import org.apache.maven.index.ArtifactInfo;
26 import org.apache.maven.index.ArtifactInfoGroup;
27 import org.apache.maven.index.Grouping;
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34 public abstract class AbstractGrouping
35 implements Grouping
36 {
37 private Comparator<ArtifactInfo> comparator;
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39 public AbstractGrouping()
40 {
41 this( ArtifactInfo.VERSION_COMPARATOR );
42 }
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44 public AbstractGrouping( Comparator<ArtifactInfo> comparator )
45 {
46 super();
47 this.comparator = comparator;
48 }
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50 public boolean addArtifactInfo( Map<String, ArtifactInfoGroup> result, ArtifactInfo artifactInfo )
51 {
52 String key = getGroupKey( artifactInfo );
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54 ArtifactInfoGroup group = result.get( key );
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56 if ( group == null )
57 {
58 group = new ArtifactInfoGroup( key, comparator );
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60 result.put( key, group );
61 }
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63 return group.addArtifactInfo( artifactInfo );
64 }
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66 protected abstract String getGroupKey( ArtifactInfo artifactInfo );
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68 }