package org.apache.maven.archiva.consumers.lucene;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.lucene.document.Document;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.MultiSearcher;
import org.apache.lucene.search.Searchable;
import org.apache.maven.archiva.configuration.ManagedRepositoryConfiguration;
import org.apache.maven.archiva.indexer.RepositoryContentIndex;
import org.apache.maven.archiva.indexer.RepositoryContentIndexFactory;
import org.apache.maven.archiva.indexer.RepositoryIndexSearchException;
import org.apache.maven.archiva.indexer.bytecode.BytecodeHandlers;
import org.apache.maven.archiva.indexer.lucene.LuceneEntryConverter;
import org.apache.maven.archiva.indexer.lucene.LuceneQuery;
import org.apache.maven.archiva.indexer.lucene.LuceneRepositoryContentRecord;
import org.apache.maven.archiva.indexer.search.SearchResultLimits;
import org.apache.maven.archiva.indexer.search.SearchResults;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Searcher used for testing purposes only.
*
* @author <a href="mailto:oching@apache.org">Maria Odea Ching</a>
* @version
*/
public class IndexJavaPublicMethodsCrossRepositorySearch
{
private Logger log = LoggerFactory.getLogger( IndexJavaPublicMethodsCrossRepositorySearch.class );
private ManagedRepositoryConfiguration localIndexedRepo;
private RepositoryContentIndexFactory indexFactory;
public IndexJavaPublicMethodsCrossRepositorySearch( ManagedRepositoryConfiguration localIndexedRepo, RepositoryContentIndexFactory indexFactory )
{
this.localIndexedRepo = localIndexedRepo;
this.indexFactory = indexFactory;
}
public SearchResults searchForBytecode( String principal, List<String> selectedRepos, String term,
SearchResultLimits limits ) throws ParseException
{
List<RepositoryContentIndex> indexes = new ArrayList<RepositoryContentIndex>();
indexes.add( indexFactory.createBytecodeIndex( localIndexedRepo ) );
QueryParser parser = new BytecodeHandlers().getQueryParser();
LuceneQuery query = new LuceneQuery( parser.parse( term ) );
SearchResults results = searchAll( query, limits, indexes );
results.getRepositories().add( localIndexedRepo );
return results;
}
private SearchResults searchAll( LuceneQuery luceneQuery, SearchResultLimits limits, List<RepositoryContentIndex> indexes )
{
org.apache.lucene.search.Query specificQuery = luceneQuery.getLuceneQuery();
SearchResults results = new SearchResults();
if ( indexes.isEmpty() )
{
// No point going any further.
return results;
}
// Setup the converter
LuceneEntryConverter converter = null;
RepositoryContentIndex index = indexes.get( 0 );
converter = index.getEntryConverter();
// Process indexes into an array of Searchables.
List<Searchable> searchableList = toSearchables( indexes );
Searchable searchables[] = new Searchable[searchableList.size()];
searchableList.toArray( searchables );
MultiSearcher searcher = null;
try
{
// Create a multi-searcher for looking up the information.
searcher = new MultiSearcher( searchables );
// Perform the search.
Hits hits = searcher.search( specificQuery );
int hitCount = hits.length();
// Now process the limits.
results.setLimits( limits );
results.setTotalHits( hitCount );
int fetchCount = limits.getPageSize();
int offset = ( limits.getSelectedPage() * limits.getPageSize() );
if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
{
fetchCount = hitCount;
offset = 0;
}
// Goto offset.
if ( offset < hitCount )
{
// only process if the offset is within the hit count.
for ( int i = 0; i <= fetchCount; i++ )
{
// Stop fetching if we are past the total # of available hits.
if ( offset + i >= hitCount )
{
break;
}
try
{
Document doc = hits.doc( offset + i );
LuceneRepositoryContentRecord record = converter.convert( doc );
results.addHit( record );
}
catch ( java.text.ParseException e )
{
log.error( e.getMessage() );
}
}
}
}
catch ( IOException e )
{
log.error( e.getMessage() );
}
finally
{
try
{
if ( searcher != null )
{
searcher.close();
}
}
catch ( IOException ie )
{
log.error( ie.getMessage() );
}
}
return results;
}
private List<Searchable> toSearchables( List<RepositoryContentIndex> indexes )
{
List<Searchable> searchableList = new ArrayList<Searchable>();
for ( RepositoryContentIndex contentIndex : indexes )
{
try
{
searchableList.add( contentIndex.getSearchable() );
}
catch ( RepositoryIndexSearchException e )
{
log.error( e.getMessage() );
}
}
return searchableList;
}
}