Examples with DocumentStoredFieldVisitor org.apache.lucene.document.DocumentStoredFieldVisitor used on opensource projects

Example 6 with DocumentStoredFieldVisitor

use of org.apache.lucene.document.DocumentStoredFieldVisitor in project cxf by apache.

the class Catalog method getBooks.

// CHECKSTYLE:ON: ReturnCount
@GET
@Produces(MediaType.APPLICATION_JSON)
public JsonArray getBooks() throws IOException {
    final IndexReader reader = DirectoryReader.open(directory);
    final IndexSearcher searcher = new IndexSearcher(reader);
    final JsonArrayBuilder builder = Json.createArrayBuilder();
    try {
        final Query query = new MatchAllDocsQuery();
        for (final ScoreDoc scoreDoc : searcher.search(query, 1000).scoreDocs) {
            final DocumentStoredFieldVisitor fieldVisitor = new DocumentStoredFieldVisitor(LuceneDocumentMetadata.SOURCE_FIELD);
            reader.document(scoreDoc.doc, fieldVisitor);
            builder.add(fieldVisitor.getDocument().getField(LuceneDocumentMetadata.SOURCE_FIELD).stringValue());
        }
        return builder.build();
    } finally {
        reader.close();
    }
}