Examples with SearcherManager org.apache.lucene.search.SearcherManager used on opensource projects

Example 6 with SearcherManager

use of org.apache.lucene.search.SearcherManager in project lucene-solr by apache.

the class AnalyzingInfixSuggester method getCount.

@Override
public long getCount() throws IOException {
    if (searcherMgr == null) {
        return 0;
    }
    SearcherManager mgr;
    IndexSearcher searcher;
    synchronized (searcherMgrLock) {
        // acquire & release on same SearcherManager, via local reference
        mgr = searcherMgr;
        searcher = mgr.acquire();
    }
    try {
        return searcher.getIndexReader().numDocs();
    } finally {
        mgr.release(searcher);
    }
}

Example 7 with SearcherManager

use of org.apache.lucene.search.SearcherManager in project lucene-solr by apache.

the class AnalyzingInfixSuggester method ensureOpen.

private synchronized void ensureOpen() throws IOException {
    if (writer == null) {
        if (DirectoryReader.indexExists(dir)) {
            // Already built; open it:
            writer = new IndexWriter(dir, getIndexWriterConfig(getGramAnalyzer(), IndexWriterConfig.OpenMode.APPEND));
        } else {
            writer = new IndexWriter(dir, getIndexWriterConfig(getGramAnalyzer(), IndexWriterConfig.OpenMode.CREATE));
        }
        synchronized (searcherMgrLock) {
            SearcherManager oldSearcherMgr = searcherMgr;
            searcherMgr = new SearcherManager(writer, null);
            if (oldSearcherMgr != null) {
                oldSearcherMgr.close();
            }
        }
    }
}

Example 8 with SearcherManager

use of org.apache.lucene.search.SearcherManager in project lucene-solr by apache.

the class TestTryDelete method testTryDeleteDocument.

public void testTryDeleteDocument() throws IOException {
    Directory directory = createIndex();
    IndexWriter writer = getWriter(directory);
    ReferenceManager<IndexSearcher> mgr = new SearcherManager(writer, new SearcherFactory());
    IndexSearcher searcher = mgr.acquire();
    TopDocs topDocs = searcher.search(new TermQuery(new Term("foo", "0")), 100);
    assertEquals(1, topDocs.totalHits);
    long result;
    if (random().nextBoolean()) {
        IndexReader r = DirectoryReader.open(writer);
        result = writer.tryDeleteDocument(r, 0);
        r.close();
    } else {
        result = writer.tryDeleteDocument(searcher.getIndexReader(), 0);
    }
    // The tryDeleteDocument should have succeeded:
    assertTrue(result != -1);
    assertTrue(writer.hasDeletions());
    if (random().nextBoolean()) {
        writer.commit();
    }
    assertTrue(writer.hasDeletions());
    mgr.maybeRefresh();
    searcher = mgr.acquire();
    topDocs = searcher.search(new TermQuery(new Term("foo", "0")), 100);
    assertEquals(0, topDocs.totalHits);
}

Example 9 with SearcherManager

use of org.apache.lucene.search.SearcherManager in project lucene-solr by apache.

the class TestTryDelete method testTryDeleteDocumentCloseAndReopen.

public void testTryDeleteDocumentCloseAndReopen() throws IOException {
    Directory directory = createIndex();
    IndexWriter writer = getWriter(directory);
    ReferenceManager<IndexSearcher> mgr = new SearcherManager(writer, new SearcherFactory());
    IndexSearcher searcher = mgr.acquire();
    TopDocs topDocs = searcher.search(new TermQuery(new Term("foo", "0")), 100);
    assertEquals(1, topDocs.totalHits);
    long result = writer.tryDeleteDocument(DirectoryReader.open(writer), 0);
    assertTrue(result != -1);
    writer.commit();
    assertTrue(writer.hasDeletions());
    mgr.maybeRefresh();
    searcher = mgr.acquire();
    topDocs = searcher.search(new TermQuery(new Term("foo", "0")), 100);
    assertEquals(0, topDocs.totalHits);
    writer.close();
    searcher = new IndexSearcher(DirectoryReader.open(directory));
    topDocs = searcher.search(new TermQuery(new Term("foo", "0")), 100);
    assertEquals(0, topDocs.totalHits);
}

Example 10 with SearcherManager

use of org.apache.lucene.search.SearcherManager in project neo4j by neo4j.

the class AllNodesCollector method getAllNodes.

public static List<Long> getAllNodes(Directory directory, Value propertyValue) throws IOException {
    try (SearcherManager manager = new SearcherManager(directory, new Neo4jSearcherFactory())) {
        IndexSearcher searcher = manager.acquire();
        Query query = LuceneDocumentStructure.newSeekQuery(propertyValue);
        AllNodesCollector collector = new AllNodesCollector();
        searcher.search(query, collector);
        return collector.nodeIds;
    }
}