Package org.apache.maven.index

Class DefaultIteratorResultSet

java.lang.Object

org.apache.maven.index.DefaultIteratorResultSet

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Iterable<ArtifactInfo>, java.util.Iterator<ArtifactInfo>, IteratorResultSet

public class DefaultIteratorResultSet
extends java.lang.Object
implements IteratorResultSet

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

Field Summary

Fields

Modifier and Type	Field	Description
private ArtifactInfo	ai
private boolean	cleanedUp
private java.util.List<IndexingContext>	contexts
private int	count
private ArtifactInfoFilter	filter
private int	from
private org.apache.lucene.search.TopDocs	hits
private NexusIndexMultiSearcher	indexSearcher
private java.util.List<MatchHighlightRequest>	matchHighlightRequests
private int	maxRecPointer
private int	pointer
private ArtifactInfoPostprocessor	postprocessor
private int	processedArtifactInfoCount
private IteratorSearchRequest	searchRequest
private int[]	starts

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DefaultIteratorResultSet(IteratorSearchRequest request, NexusIndexMultiSearcher indexSearcher, java.util.List<IndexingContext> contexts, org.apache.lucene.search.TopDocs hits)

Method Summary

Modifier and Type	Method	Description
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 java.util.List<java.lang.String>	getBestFragments(org.apache.lucene.search.Query query, org.apache.lucene.search.highlight.Formatter formatter, org.apache.lucene.analysis.TokenStream tokenStream, java.lang.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 java.util.List<java.lang.String>	highlightField(IndexingContext context, MatchHighlightRequest hr, IndexerField field, java.lang.String text)	Returns a string that contains match fragment highlighted in style as user requested.
java.util.Iterator<ArtifactInfo>	iterator()
ArtifactInfo	next()
private static int	readerIndex(int n, int[] starts, int numSubReaders)
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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

searchRequest

private final IteratorSearchRequest searchRequest

indexSearcher

private final NexusIndexMultiSearcher indexSearcher

contexts

private final java.util.List<IndexingContext> contexts

starts

private final int[] starts

filter

private final ArtifactInfoFilter filter

postprocessor

private final ArtifactInfoPostprocessor postprocessor

matchHighlightRequests

private final java.util.List<MatchHighlightRequest> matchHighlightRequests

hits

private final org.apache.lucene.search.TopDocs hits

from

private final int from

count

private final int count

maxRecPointer

private final int maxRecPointer

pointer

private int pointer

processedArtifactInfoCount

private int processedArtifactInfoCount

ai

private ArtifactInfo ai

cleanedUp

private volatile boolean cleanedUp

Constructor Detail

DefaultIteratorResultSet

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

Throws:

java.io.IOException

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<ArtifactInfo>

next

public ArtifactInfo next()

Specified by:

next in interface java.util.Iterator<ArtifactInfo>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<ArtifactInfo>

iterator

public java.util.Iterator<ArtifactInfo> iterator()

Specified by:

iterator in interface java.lang.Iterable<ArtifactInfo>

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.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 java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

createNextAi

protected ArtifactInfo createNextAi()
                             throws java.io.IOException

Throws:

java.io.IOException

cleanUp

protected void cleanUp()

calculateHighlights

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

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

Parameters:

context -

d -

ai -

Throws:

java.io.IOException

selectStoredIndexerField

protected IndexerField selectStoredIndexerField(Field field)

Select a STORED IndexerField assigned to passed in Field.

Parameters:

field -

Returns:

highlightField

protected java.util.List<java.lang.String> highlightField(IndexingContext context,
                                                          MatchHighlightRequest hr,
                                                          IndexerField field,
                                                          java.lang.String text)
                                                   throws java.io.IOException

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

Parameters:

context -

hr -

field -

text -

Returns:

Throws:

java.io.IOException

getBestFragments

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

Throws:

java.io.IOException

getIndexingContextForPointer

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

readerIndex

private static int readerIndex(int n,
                               int[] starts,
                               int numSubReaders)