Package org.apache.maven.index

Class DefaultSearchEngine

java.lang.Object

org.apache.maven.index.DefaultSearchEngine

All Implemented Interfaces:

SearchEngine

@Singleton
@Named
public class DefaultSearchEngine
extends Object
implements SearchEngine

A default search engine implementation

Author:

Eugene Kuleshov, Tamas Cservenak

Constructor Summary

Constructors

Constructor	Description
DefaultSearchEngine()

Method Summary

Modifier and Type	Method	Description
protected org.apache.lucene.search.TopScoreDocCollector	doSearchWithCeiling(AbstractSearchRequest request, org.apache.lucene.search.IndexSearcher indexSearcher, org.apache.lucene.search.Query query)
FlatSearchResponse	forceSearchFlatPaged(FlatSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search in all contexts, no matter if the context is searchable or not
GroupedSearchResponse	forceSearchGrouped(GroupedSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search in all contexts, no matter if the context is searchable or not
IteratorSearchResponse	forceSearchIteratorPaged(IteratorSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search in all contexts, no matter if the context is searchable or not
protected org.slf4j.Logger	getLogger()
protected NexusIndexMultiReader	getMergedIndexReader(Collection<IndexingContext> indexingContexts, boolean ignoreContext)	Locks down participating contexts, and returns a "merged" reader of them.
protected List<IndexingContext>	getParticipatingContexts(Collection<IndexingContext> indexingContexts, boolean ignoreContext)	Returns the list of participating contexts.
protected int	getTopDocsCollectorHitNum(AbstractSearchRequest request, int ceiling)
Set<ArtifactInfo>	searchFlat(Comparator<ArtifactInfo> artifactInfoComparator, Collection<IndexingContext> indexingContexts, org.apache.lucene.search.Query query)	Deprecated.
Set<ArtifactInfo>	searchFlat(Comparator<ArtifactInfo> artifactInfoComparator, IndexingContext indexingContext, org.apache.lucene.search.Query query)	Deprecated.
protected int	searchFlat(FlatSearchRequest req, Collection<ArtifactInfo> result, List<IndexingContext> participatingContexts, org.apache.lucene.search.Query query)
FlatSearchResponse	searchFlatPaged(FlatSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search only on searchable contexts
protected FlatSearchResponse	searchFlatPaged(FlatSearchRequest request, Collection<IndexingContext> indexingContexts, boolean ignoreContext)
GroupedSearchResponse	searchGrouped(GroupedSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search only on searchable contexts
protected GroupedSearchResponse	searchGrouped(GroupedSearchRequest request, Collection<IndexingContext> indexingContexts, boolean ignoreContext)
protected int	searchGrouped(GroupedSearchRequest req, Map<String,ArtifactInfoGroup> result, Grouping grouping, List<IndexingContext> participatingContexts, org.apache.lucene.search.Query query)
IteratorSearchResponse	searchIteratorPaged(IteratorSearchRequest request, Collection<IndexingContext> indexingContexts)	Do the search only on searchable contexts

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultSearchEngine

public DefaultSearchEngine()

Method Details

getLogger

protected org.slf4j.Logger getLogger()

searchFlat

@Deprecated
public Set<ArtifactInfo> searchFlat(Comparator<ArtifactInfo> artifactInfoComparator,
 IndexingContext indexingContext,
 org.apache.lucene.search.Query query)
                             throws IOException

Deprecated.

Specified by:

searchFlat in interface SearchEngine

Throws:

IOException

searchFlat

@Deprecated
public Set<ArtifactInfo> searchFlat(Comparator<ArtifactInfo> artifactInfoComparator,
 Collection<IndexingContext> indexingContexts,
 org.apache.lucene.search.Query query)
                             throws IOException

Deprecated.

Specified by:

searchFlat in interface SearchEngine

Throws:

IOException

searchFlatPaged

public FlatSearchResponse searchFlatPaged(FlatSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                   throws IOException

Description copied from interface: SearchEngine

Do the search only on searchable contexts

Specified by:

searchFlatPaged in interface SearchEngine

Throws:

IOException

forceSearchFlatPaged

public FlatSearchResponse forceSearchFlatPaged(FlatSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                        throws IOException

Description copied from interface: SearchEngine

Do the search in all contexts, no matter if the context is searchable or not

Specified by:

forceSearchFlatPaged in interface SearchEngine

Throws:

IOException

searchFlatPaged

protected FlatSearchResponse searchFlatPaged(FlatSearchRequest request,
 Collection<IndexingContext> indexingContexts,
 boolean ignoreContext)
                                      throws IOException

Throws:

IOException

searchGrouped

public GroupedSearchResponse searchGrouped(GroupedSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                    throws IOException

Description copied from interface: SearchEngine

Do the search only on searchable contexts

Specified by:

searchGrouped in interface SearchEngine

Throws:

IOException

forceSearchGrouped

public GroupedSearchResponse forceSearchGrouped(GroupedSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                         throws IOException

Description copied from interface: SearchEngine

Do the search in all contexts, no matter if the context is searchable or not

Specified by:

forceSearchGrouped in interface SearchEngine

Throws:

IOException

searchGrouped

protected GroupedSearchResponse searchGrouped(GroupedSearchRequest request,
 Collection<IndexingContext> indexingContexts,
 boolean ignoreContext)
                                       throws IOException

Throws:

IOException

searchFlat

protected int searchFlat(FlatSearchRequest req,
 Collection<ArtifactInfo> result,
 List<IndexingContext> participatingContexts,
 org.apache.lucene.search.Query query)
                  throws IOException

Throws:

IOException

searchGrouped

protected int searchGrouped(GroupedSearchRequest req,
 Map<String,ArtifactInfoGroup> result,
 Grouping grouping,
 List<IndexingContext> participatingContexts,
 org.apache.lucene.search.Query query)
                     throws IOException

Throws:

IOException

searchIteratorPaged

public IteratorSearchResponse searchIteratorPaged(IteratorSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                           throws IOException

Description copied from interface: SearchEngine

Do the search only on searchable contexts

Specified by:

searchIteratorPaged in interface SearchEngine

Throws:

IOException

forceSearchIteratorPaged

public IteratorSearchResponse forceSearchIteratorPaged(IteratorSearchRequest request,
 Collection<IndexingContext> indexingContexts)
                                                throws IOException

Description copied from interface: SearchEngine

Do the search in all contexts, no matter if the context is searchable or not

Specified by:

forceSearchIteratorPaged in interface SearchEngine

Throws:

IOException

doSearchWithCeiling

protected org.apache.lucene.search.TopScoreDocCollector doSearchWithCeiling(AbstractSearchRequest request,
 org.apache.lucene.search.IndexSearcher indexSearcher,
 org.apache.lucene.search.Query query)
                                                                     throws IOException

Throws:

IOException

getParticipatingContexts

protected List<IndexingContext> getParticipatingContexts(Collection<IndexingContext> indexingContexts,
 boolean ignoreContext)

Returns the list of participating contexts. Does not locks them, just builds a list of them.

getMergedIndexReader

protected NexusIndexMultiReader getMergedIndexReader(Collection<IndexingContext> indexingContexts,
 boolean ignoreContext)
                                              throws IOException

Locks down participating contexts, and returns a "merged" reader of them. In case of error, unlocks as part of cleanup and re-throws exception. Without error, it is the duty of caller to unlock contexts!

Parameters:

indexingContexts -

ignoreContext -

Returns:

Throws:

IOException

getTopDocsCollectorHitNum

protected int getTopDocsCollectorHitNum(AbstractSearchRequest request,
 int ceiling)