Example usage for org.apache.lucene.store NIOFSDirectory NIOFSDirectory

Introduction

In this page you can find the example usage for org.apache.lucene.store NIOFSDirectory NIOFSDirectory.

Prototype

public NIOFSDirectory(Path path) throws IOException 

Source Link

Document

Create a new NIOFSDirectory for the named location and FSLockFactory#getDefault() .

Usage

From source file:calliope.search.AeseSearch.java

License:Open Source License

/**
 * Build the entire Lucene index from scratch
 * @param langCode the language code// ww  w.jav a  2 s. c o m
 */
public static void buildIndex(String langCode) throws AeseException {
    try {
        String[] docIDs = Connector.getConnection().listCollection(Database.CORTEX);
        Analyzer analyzer = createAnalyzer(langCode);
        File home = new File(System.getProperty("user.home"));
        indexLocation = new File(home, ".calliope");
        if (!indexLocation.exists())
            indexLocation.mkdir();
        AeseSearch.index = new NIOFSDirectory(indexLocation);
        IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_45, analyzer);
        IndexWriter w = new IndexWriter(index, config);
        for (int i = 0; i < docIDs.length; i++) {
            addCorTextoIndex(docIDs[i], w);
        }
        w.close();
    } catch (Exception e) {
        throw new AeseException(e);
    }
}

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From source file:cn.hbu.cs.esearch.index.DefaultDirectoryManager.java

License:Apache License

@Override
public Directory getDirectory(boolean create) throws IOException {
    if (!directory.exists() && create) {
        // create the parent directory
        directory.mkdirs();//from   w  w  w .j av  a  2 s. c om
    }

    if (create) {
        IndexSignature sig = null;
        if (directory.exists()) {
            sig = getCurrentIndexSignature();
        }

        if (sig == null) {
            File directoryFile = new File(directory, INDEX_DIRECTORY);
            sig = new IndexSignature(null);
            try {
                saveSignature(sig, directoryFile);
            } catch (IOException e) {
                throw e;
            }
        }
    }

    FSDirectory dir = null;
    switch (mode) {
    case SIMPLE:
        dir = new SimpleFSDirectory(directory);
        break;
    case NIO:
        dir = new NIOFSDirectory(directory);
        break;
    case MMAP:
        dir = new MMapDirectory(directory);
        break;
    }
    LOGGER.info("created Directory: " + dir);
    return dir;
}

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From source file:com.bluedragon.search.collection.Collection.java

License:Open Source License

private void setDirectory() throws IOException {
    if (directory != null)
        return;/*from  ww  w  . ja  va  2s.com*/

    if (Constants.WINDOWS) {
        directory = new SimpleFSDirectory(FileSystems.getDefault().getPath(collectionpath));
    } else {
        directory = new NIOFSDirectory(FileSystems.getDefault().getPath(collectionpath));
    }

    File touchFile = new File(collectionpath, "openbd.created");
    if (touchFile.exists())
        created = touchFile.lastModified();
    else
        created = System.currentTimeMillis();
}

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From source file:com.globalsight.ling.tm2.lucene.LuceneCache.java

License:Apache License

/**
 * For one dir searcher/*ww  w.j  a  v a  2  s .c o  m*/
 * 
 * @param path
 */
public static LuceneCache getLuceneCache(File path) throws IOException {
    if (path == null) {
        return null;
    }

    String p = path.getPath();

    if (cache.containsKey(p)) {
        LuceneCache lc = cache.get(p);
        return lc;
    }

    NIOFSDirectory dir = new NIOFSDirectory(path);
    if (dir != null && DirectoryReader.indexExists(dir)) {
        // if (IndexWriter.isLocked(dir))
        // {
        // IndexWriter.unlock(dir);
        // }

        // clean lock
        // dir.clearLock(name);
        IndexReader iR = DirectoryReader.open(dir);
        IndexSearcher iS = new IndexSearcher(iR);
        LuceneCache lc = new LuceneCache(p, iR, iS);

        iR.addReaderClosedListener(lc);
        cache.put(p, lc);

        return lc;
    } else {
        return null;
    }
}

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From source file:com.knowgate.lucene.Indexer.java

License:Open Source License

/**
 * Open Lucene Directory//from w w  w  .j  av a2  s  .c o m
 * @param sDirectoryPath String Full path to Directory location.
 * Use a disk path for opening a NIOFSDirectory o preffix the
 * path with bdb:// for opening a Berkely DB DbDirectory like "bdb:///opt/storage/db/"
 * @throws IOException
 * @since 7.0
 */
public static Directory openDirectory(String sDirectoryPath) throws IOException {
    Directory oDir;
    if (sDirectoryPath.startsWith("bdb://")) {
        oDir = DBDirectory.open(sDirectoryPath.substring(6));
    } else if (sDirectoryPath.startsWith("file://")) {
        oDir = new NIOFSDirectory(new File(sDirectoryPath.substring(7)));
    } else {
        oDir = new NIOFSDirectory(new File(sDirectoryPath));
    }
    return oDir;
}

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From source file:com.knowgate.lucene.Indexer.java

License:Open Source License

public static void add(String sTableName, String sDirectory, String sAnalyzer, Map oKeywords, Map oTexts,
        Map oUnStored) throws ClassNotFoundException, IOException, IllegalArgumentException,
        NoSuchFieldException, IllegalAccessException, InstantiationException, NullPointerException {

    if (!allowedTable(sTableName))
        throw new IllegalArgumentException("Table name must be k_bugs or k_newsmsgs or k_mime_msgs");

    if (null == sDirectory)
        throw new NoSuchFieldException("Cannot find luceneindex property");

    File oDir = new File(sDirectory);
    if (!oDir.exists()) {
        FileSystem oFS = new FileSystem();
        try {// w  ww .  ja  v  a2s  . com
            oFS.mkdirs(sDirectory);
        } catch (Exception e) {
            throw new IOException(e.getClass().getName() + " " + e.getMessage());
        }
    }

    Class oAnalyzer = Class.forName((sAnalyzer == null) ? DEFAULT_ANALYZER : sAnalyzer);

    NIOFSDirectory oFsDir = new NIOFSDirectory(new File(sDirectory));
    IndexWriter oIWrt = new IndexWriter(oFsDir, (Analyzer) oAnalyzer.newInstance(),
            IndexWriter.MaxFieldLength.LIMITED);

    add(oIWrt, oKeywords, oTexts, oUnStored);

    oIWrt.close();
    oFsDir.close();
}

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From source file:com.knowgate.lucene.Indexer.java

License:Open Source License

/**
 * Delete a document with a given GUID/*from   w  w w.j  a v a2  s  .c  om*/
 * @param sTableName k_bugs, k_newsmsgs or k_mime_msgs
 * @param oProps Properties Collection containing luceneindex directory
 * @param sGuid Document GUID
 * @return Number of documents deleted
 * @throws IllegalArgumentException If sTableName is not one of { k_bugs, k_newsmsgs, k_mime_msgs }
 * @throws NoSuchFieldException If luceneindex property is not found at oProps
 * @throws IllegalAccessException
 * @throws IOException
 * @throws NullPointerException If sGuid is <b>null</b>
 */
public static int delete(String sTableName, String sWorkArea, Properties oProps, String sGuid)
        throws IllegalArgumentException, NoSuchFieldException, IllegalAccessException, IOException,
        NullPointerException {

    if (null == sGuid)
        throw new NullPointerException("Document GUID may not be null");

    if (!allowedTable(sTableName))
        throw new IllegalArgumentException("Table name must be k_bugs or k_newsmsgs or k_mime_msgs");

    String sDirectory = oProps.getProperty("luceneindex");

    if (null == sDirectory)
        throw new NoSuchFieldException("Cannot find luceneindex property");

    sDirectory = Gadgets.chomp(sDirectory, File.separator) + sTableName.toLowerCase() + File.separator
            + sWorkArea;
    File oDir = new File(sDirectory);
    if (!oDir.exists()) {
        FileSystem oFS = new FileSystem();
        try {
            oFS.mkdirs(sDirectory);
        } catch (Exception e) {
            throw new IOException(e.getClass().getName() + " " + e.getMessage());
        }
    } // fi

    NIOFSDirectory oFsDir = new NIOFSDirectory(new File(sDirectory));
    IndexReader oReader = IndexReader.open(oFsDir);

    int iDeleted = oReader.deleteDocuments(new Term("guid", sGuid));

    oReader.close();
    oFsDir.close();

    return iDeleted;
}

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From source file:com.meltmedia.cadmium.search.SearchContentPreprocessor.java

License:Apache License

@Override
public synchronized void processFromDirectory(String metaDir) throws Exception {
    SearchHolder newStagedSearcher = new SearchHolder();
    indexDir = new File(metaDir, "lucene-index");
    dataDir = new File(metaDir).getParentFile();
    newStagedSearcher.directory = new NIOFSDirectory(indexDir);
    IndexWriter iwriter = null;/* w  w  w.  ja  v a  2s.c om*/
    try {
        iwriter = new IndexWriter(newStagedSearcher.directory,
                new IndexWriterConfig(Version.LUCENE_43, analyzer).setRAMBufferSizeMB(5));
        iwriter.deleteAll();
        writeIndex(iwriter, dataDir);
    } finally {
        IOUtils.closeQuietly(iwriter);
        iwriter = null;
    }
    newStagedSearcher.indexReader = DirectoryReader.open(newStagedSearcher.directory);
    SearchHolder oldStage = stagedSearch;
    stagedSearch = newStagedSearcher;
    if (oldStage != null) {
        oldStage.close();
    }
    log.info("About to call processSearchPreprocessors()");
    processSearchPreprocessors(newStagedSearcher.indexReader, analyzer, "content");
}

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From source file:com.tilab.ca.sse.core.lucene.LuceneManager.java

License:Open Source License

public static Directory pickDirectory(File indexDir) throws IOException {
    LOG.debug("[pickDirectory] - BEGIN");
    Directory directory;//from  w w w. j  a v a  2  s  .c o  m
    if (System.getProperty("os.name").equals("Linux") && System.getProperty("os.arch").contains("64")) {
        directory = new MMapDirectory(indexDir);
    } else if (System.getProperty("os.name").equals("Linux")) {
        directory = new NIOFSDirectory(indexDir);
    } else {
        directory = FSDirectory.open(indexDir);
    }
    LOG.debug("[pickDirectory] - END");
    return directory;
}

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From source file:com.vmware.xenon.services.common.LuceneDocumentIndexBackupService.java

License:Open Source License

private void copyInMemoryLuceneIndexToDirectory(IndexCommit commit, Path directoryPath) throws IOException {
    Directory from = commit.getDirectory();
    try (Directory to = new NIOFSDirectory(directoryPath)) {
        for (String filename : commit.getFileNames()) {
            to.copyFrom(from, filename, filename, IOContext.DEFAULT);
        }//from w w  w  .  j a v  a 2s.  c  om
    }
}

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