Package org.apache.lucene.store

Examples of org.apache.lucene.store.FSDirectory

Unfortunately, because of system peculiarities, there is no single overall best implementation. Therefore, we've added the {@link #open} method, to allow Lucene to choosethe best FSDirectory implementation given your environment, and the known limitations of each implementation. For users who have no reason to prefer a specific implementation, it's best to simply use {@link #open}. For all others, you should instantiate the desired implementation directly.

The locking implementation is by default {@link NativeFSLockFactory}, but can be changed by passing in a custom {@link LockFactory} instance. @see Directory

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  }

  // Initialize an IndexWriter
  static IndexWriter initWriter (int count) throws Exception {
    boolean create = count > 0 ? false : true;
    FSDirectory directory = FSDirectory.getDirectory(indexDir);
    IndexWriter writer = new IndexWriter(directory, true,
        new WhitespaceAnalyzer(), create);
      // writer.setMaxBufferedDocs(1000);
      writer.setUseCompoundFile(false);
     
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      if (adapter == null) {
         synchronized (openDirectories) {
            adapter = openDirectories.get(indexName);
            if (adapter == null) {
               final File path = new File(this.rootDirectory, indexName);
               final FSDirectory directory = openLuceneDirectory(path);
               adapter = new DirectoryLoaderAdaptor(directory, indexName, autoChunkSize);
               openDirectories.put(indexName, adapter);
            }
         }
      }
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   * @throws java.io.IOException if an error
   */
  public static FSDirectory createFSIndex(File indexDir, Properties properties, ServiceManager serviceManager) throws IOException {
    LockFactory lockFactory = createLockFactory( indexDir, properties, serviceManager );
    FSDirectoryType fsDirectoryType = FSDirectoryType.getType( properties );
    FSDirectory fsDirectory = fsDirectoryType.getDirectory( indexDir, null );

    // must use the setter (instead of using the constructor) to set the lockFactory, or Lucene will
    // throw an exception if it's different than a previous setting.
    fsDirectory.setLockFactory( lockFactory );
    log.debugf( "Initialize index: '%s'", indexDir.getAbsolutePath() );
    initializeIndexIfNeeded( fsDirectory );
    return fsDirectory;
  }
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  }

  private void initSourceReader() {
    if (sourceLocation != null) {
      try {
        FSDirectory luceneIndexDir = FSDirectory.open(new File(sourceLocation));
        this.reader = IndexReader.open(luceneIndexDir);
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
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  }

  private static Directory newFSDirectoryImpl(
      Class<? extends FSDirectory> clazz, File file, LockFactory lockFactory)
      throws IOException {
    FSDirectory d = null;
    try {
      // Assuming every FSDirectory has a ctor(File), but not all may take a
      // LockFactory too, so setting it afterwards.
      Constructor<? extends FSDirectory> ctor = clazz.getConstructor(File.class);
      d = ctor.newInstance(file);
    } catch (Exception e) {
      d = FSDirectory.open(file);
    }
    if (lockFactory != null) {
      d.setLockFactory(lockFactory);
    }
    return d;
  }
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    log.info("Opening " + this.name);

    SolrIndexReader.setSearcher(reader, this);

    if (r.directory() instanceof FSDirectory) {
      FSDirectory fsDirectory = (FSDirectory) r.directory();
      indexDir = fsDirectory.getDirectory().getAbsolutePath();
    }

    this.closeReader = closeReader;
    setSimilarity(schema.getSimilarity());
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      sb.append("commit{");

      Directory dir = commit.getDirectory();

      if (dir instanceof FSDirectory) {
        FSDirectory fsd = (FSDirectory) dir;
        sb.append("dir=").append(fsd.getDirectory());
      } else {
        sb.append("dir=").append(dir);
      }

      sb.append(",segFN=").append(commit.getSegmentsFileName());
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    Directory dir = commit.getDirectory();

    // For anything persistent, make something that will
    // be the same, regardless of the Directory instance.
    if (dir instanceof FSDirectory) {
      FSDirectory fsd = (FSDirectory) dir;
      File fdir = fsd.getDirectory();
      sb.append(fdir.getPath());
    } else {
      sb.append(dir);
    }
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  }

  private void initSourceReader() {
    if (sourceLocation != null) {
      try {
        FSDirectory luceneIndexDir = FSDirectory.getDirectory(sourceLocation);
        this.reader = IndexReader.open(luceneIndexDir);
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
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        if (!indexFile.exists()) {
            return new StoreFilesMetaData(false, shardId, ImmutableMap.<String, StoreFileMetaData>of());
        }
        Map<String, StoreFileMetaData> files = Maps.newHashMap();
        // read the checksums file
        FSDirectory directory = FSDirectory.open(indexFile);
        Map<String, String> checksums = null;
        try {
            checksums = AbstractStore.readChecksums(directory);
            for (File file : indexFile.listFiles()) {
                // BACKWARD CKS SUPPORT
                if (file.getName().endsWith(".cks")) {
                    continue;
                }
                if (file.getName().startsWith("_checksums")) {
                    continue;
                }
                files.put(file.getName(), new StoreFileMetaData(file.getName(), file.length(), file.lastModified(), checksums.get(file.getName())));
            }
        } finally {
            directory.close();
        }

        // BACKWARD CKS SUPPORT
        for (File file : indexFile.listFiles()) {
            if (file.getName().endsWith(".cks")) {
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