Исключение в потоке "главная" организация. apache .jena.query.text.TextIndexException: openIndexWriter - PullRequest
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Исключение в потоке "главная" организация. apache .jena.query.text.TextIndexException: openIndexWriter

0 голосов
/ 30 января 2020

Я работаю с Йеной и Люсеном для полнотекстового поиска. У меня проблема во время сеанса. Полная ошибка показывает: 

Exception in thread "main" org.apache.jena.query.text.TextIndexException: openIndexWriter
at org.apache.jena.query.text.TextIndexLucene.openIndexWriter(TextIndexLucene.java:198)
at org.apache.jena.query.text.TextIndexLucene.<init>(TextIndexLucene.java:181)
at org.apache.jena.query.text.TextDatasetFactory.createLuceneIndex(TextDatasetFactory.java:109)
at org.apache.jena.query.text.TextDatasetFactory.createLucene(TextDatasetFactory.java:136)
at main.Search.createIndexedDataset(Search.java:95)
at main.Search.main(Search.java:53)
Caused by: org.apache.lucene.index.IndexFormatTooNewException: Format version is not supported
(resource BufferedChecksumIndexInput(SimpleFSIndexInput(path="C:\Users\Ulfa Amalia\eclipse
workspace\FullTextSearch\luceneindex\segments_1"))): 9 (needs to be between 4 and 6)
at org.apache.lucene.codecs.CodecUtil.checkHeaderNoMagic(CodecUtil.java:216)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:302)
at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:286)
at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:938)
at org.apache.jena.query.text.TextIndexLucene.openIndexWriter(TextIndexLucene.java:188)
... 5 more

Исходя из первой строки, я подумал, что это может быть отсутствие Jena-Text . Но после того, как я его добавил, ничего не изменилось (все равно ошибка) или, может быть, в TextDatasetFactory проблема (?), Я все еще не уверен в этом. Мои полные коды указаны ниже: 

public class Search {
static String URI = "http://www.tutorialacademy.com/jenatext#";

static {LogCtl.setLog4j();
BasicConfigurator.configure();}
static Logger log = LoggerFactory.getLogger("Search");

public static void main(String ... argv)
{
    TextQuery.init();
    Dataset ds = createIndexedDataset("tdb", "luceneindex", "hasLongText");
    loadData(ds, "res/data2.ttl");
    queryData(ds);

}

public static Dataset createIndexedDataset(String tdbPath, String lucenePath, String indexedProperty)
{
    Dataset graphDS = null;

    if(tdbPath == null)
    {
        System.out.println("Construct an in-memory dataset");
        graphDS = DatasetFactory.createMem();
    }else
    {
        System.out.println("Construct a persistant TDB based dataset to: " + tdbPath);
        graphDS = DatasetFactory.create();
    }
    //define the index mapping
    EntityDefinition entDef = new EntityDefinition ("uri", "text", ResourceFactory.createProperty(URI, indexedProperty));
    Directory luceneDir = null;

    // check for in memory or file based (persistant) index
    if (lucenePath == null)
    {
        System.out.println("Construct an in-memory lucene index");
        luceneDir = new RAMDirectory();
    }else
    {
        try
        {
            System.out.println("Construct a persistant lucene index to: " + lucenePath);
            luceneDir = new SimpleFSDirectory(Paths.get(lucenePath));
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    //create new indexed dataset: insert operations are automatically indexed with lucene
    Dataset ds = TextDatasetFactory.createLucene(graphDS, luceneDir,  new TextIndexConfig(entDef));
    return ds;
}

public static void loadData(Dataset dataset, String file)
{
    System.out.println("Load data...");
    long startTime = System.currentTimeMillis();
    dataset.begin(ReadWrite.WRITE);
    try
    {
        Model m = dataset.getDefaultModel();
        RDFDataMgr.read(m, file);
        dataset.commit();
    }
    finally
    {
        dataset.end();
    }

    long finishTime = System.currentTimeMillis();
    long time = finishTime - startTime;
    System.out.println("Loading finished after "+ time+ " ms");
}

public static void queryData(Dataset dataset)
{
    System.out.println("Query data...");
    String prefix = "PREFIX ta: <" + URI + ">"+
                                    "PREFIX text: <http://jena.apache.org/text#>";
    String query = "SELECT * WHERE" +
                                    "{ ?s text:query (ta:hasLongText 'g?eat')."+
                                    " ?s ta.hasLongText ?text . "+
                                    "}";

    long startTime = System.currentTimeMillis();

    dataset.begin(ReadWrite.READ);
    try
    {
        Query q = QueryFactory.create(prefix + query);
        QueryExecution qexec = QueryExecutionFactory.create(q,dataset);
        QueryExecUtils.executeQuery(q, qexec);
    }
    finally
    {
        dataset.end();
    }

    long finishTime = System.currentTimeMillis();

    long time = finishTime- startTime;
    System.out.println("Query finished after " + time +" ms.");
}}

пожалуйста, сообщите мне. спасибо.

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