org.apache.maven.index
Class DefaultIteratorResultSet

java.lang.Object
  org.apache.maven.index.DefaultIteratorResultSet

All Implemented Interfaces:

Closeable, Iterable<ArtifactInfo>, Iterator<ArtifactInfo>, IteratorResultSet

public class DefaultIteratorResultSet
extends Object
implements IteratorResultSet

Default implementation of IteratorResultSet. TODO: there is too much of logic, refactor this!

Author:

cstamas

Constructor Summary

protected

DefaultIteratorResultSet(IteratorSearchRequest request, org.apache.lucene.search.IndexSearcher indexSearcher, List<IndexingContext> contexts, org.apache.lucene.search.TopDocs hits)

Method Summary

protected void	calculateHighlights(IndexingContext context, org.apache.lucene.document.Document d, ArtifactInfo ai) Creates the MatchHighlights and adds them to ArtifactInfo if found/can.
protected void	cleanUp()
void	close()
protected ArtifactInfo	createNextAi()
void	finalize()
protected List<String>	getBestFragments(org.apache.lucene.search.Query query, org.apache.lucene.search.highlight.Formatter formatter, org.apache.lucene.analysis.TokenStream tokenStream, String text, int maxNumFragments)
protected IndexingContext	getIndexingContextForPointer(org.apache.lucene.document.Document doc, int docPtr)
int	getTotalProcessedArtifactInfoCount() Returns the up-to-date number of the actual number of loaded Lucene Documents that were converted into ArtifactInfo object until last next() invocation.
boolean	hasNext()
protected List<String>	highlightField(IndexingContext context, MatchHighlightRequest hr, IndexerField field, String text) Returns a string that contains match fragment highlighted in style as user requested.
Iterator<ArtifactInfo>	iterator()
ArtifactInfo	next()
void	remove()
protected IndexerField	selectStoredIndexerField(Field field) Select a STORED IndexerField assigned to passed in Field.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultIteratorResultSet

protected DefaultIteratorResultSet(IteratorSearchRequest request,
                                   org.apache.lucene.search.IndexSearcher indexSearcher,
                                   List<IndexingContext> contexts,
                                   org.apache.lucene.search.TopDocs hits)
                            throws IOException

Throws:

IOException

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<ArtifactInfo>

next

public ArtifactInfo next()

Specified by:

next in interface Iterator<ArtifactInfo>

remove

public void remove()

Specified by:

remove in interface Iterator<ArtifactInfo>

iterator

public Iterator<ArtifactInfo> iterator()

Specified by:

iterator in interface Iterable<ArtifactInfo>

close

public void close()

Specified by:

close in interface Closeable

getTotalProcessedArtifactInfoCount

public int getTotalProcessedArtifactInfoCount()

Description copied from interface: IteratorResultSet

Returns the up-to-date number of the actual number of loaded Lucene Documents that were converted into ArtifactInfo object until last next() invocation. Warning: this method will return ALL touched/loaded document count, even those that are filtered out and NOT returned by iterator's next() method!

Specified by:

getTotalProcessedArtifactInfoCount in interface IteratorResultSet

Returns:

total number of processed ArtifactInfos so far

finalize

public void finalize()
              throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

createNextAi

protected ArtifactInfo createNextAi()
                             throws IOException

Throws:

IOException

cleanUp

protected void cleanUp()

calculateHighlights

protected void calculateHighlights(IndexingContext context,
                                   org.apache.lucene.document.Document d,
                                   ArtifactInfo ai)
                            throws IOException

Creates the MatchHighlights and adds them to ArtifactInfo if found/can.

Parameters:

context -

d -

ai -

Throws:

IOException

selectStoredIndexerField

protected IndexerField selectStoredIndexerField(Field field)

Select a STORED IndexerField assigned to passed in Field.

Parameters:

field -

Returns:

highlightField

protected List<String> highlightField(IndexingContext context,
                                      MatchHighlightRequest hr,
                                      IndexerField field,
                                      String text)
                               throws IOException

Returns a string that contains match fragment highlighted in style as user requested.

Parameters:

context -

hr -

field -

doc -

Returns:

Throws:

IOException

getBestFragments

protected final List<String> getBestFragments(org.apache.lucene.search.Query query,
                                              org.apache.lucene.search.highlight.Formatter formatter,
                                              org.apache.lucene.analysis.TokenStream tokenStream,
                                              String text,
                                              int maxNumFragments)
                                       throws IOException

Throws:

IOException

getIndexingContextForPointer

protected IndexingContext getIndexingContextForPointer(org.apache.lucene.document.Document doc,
                                                       int docPtr)