Examples of org.apache.poi.poifs.filesystem.NPOIFSFileSystem

org.apache.poi.poifs.filesystem.NPOIFSFileSystem
This is the main class of the POIFS system; it manages the entire life cycle of the filesystem. This is the new NIO version

    }
    
    @Test(expected=EncryptedDocumentException.class)
    public void bug55692_npoifs() throws Exception {
        // Via a NPOIFSFileSystem
        NPOIFSFileSystem fsNP = new NPOIFSFileSystem(POIDataSamples.getPOIFSInstance().openResourceAsStream("protect.xlsx"));
        WorkbookFactory.create(fsNP);
    }

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     if(! file.exists()) {
        throw new FileNotFoundException(file.toString());
     }
     
     try {
        NPOIFSFileSystem fs = new NPOIFSFileSystem(file);
        return new HSSFWorkbook(fs.getRoot(), true);
     } catch(OfficeXmlFileException e) {
        OPCPackage pkg = OPCPackage.openOrCreate(file);
        return new XSSFWorkbook(pkg);
     }
  }

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     */
    public void testDifferentPOIFS() throws Exception {
       // Open the two filesystems
       DirectoryNode[] files = new DirectoryNode[2];
       files[0] = (new POIFSFileSystem(slTests.openResourceAsStream("basic_test_ppt_file.ppt"))).getRoot();
       files[1] = (new NPOIFSFileSystem(slTests.getFile("basic_test_ppt_file.ppt"))).getRoot();
       
       // Open directly 
       for(DirectoryNode dir : files) {
          PowerPointExtractor extractor = new PowerPointExtractor(dir, null);
          assertEquals(expectText, extractor.getText());

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            Metadata metadata, ParseContext context)
            throws IOException, SAXException, TikaException {
        XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata);
        xhtml.startDocument();


        NPOIFSFileSystem filesystem;
        TikaInputStream tstream = TikaInputStream.cast(stream);
        if (tstream == null) {
            filesystem =
                new NPOIFSFileSystem(new CloseShieldInputStream(stream));
        } else if (tstream.getOpenContainer() instanceof NPOIFSFileSystem) {
            filesystem = (NPOIFSFileSystem) tstream.getOpenContainer();
        } else if (tstream.hasFile()) {
            filesystem = new NPOIFSFileSystem(tstream.getFileChannel());
        } else {
            filesystem =
                new NPOIFSFileSystem(new CloseShieldInputStream(tstream));
        }


        // Parse summary entries first, to make metadata available early
        new SummaryExtractor(metadata).parseSummaries(filesystem);


        // Parse remaining document entries
        boolean outlookExtracted = false;
        for (Entry entry : filesystem.getRoot()) {
            POIFSDocumentType type = POIFSDocumentType.detectType(entry);


            if (type!=POIFSDocumentType.UNKNOWN) {
                setType(metadata, type.getType());
            }

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        // Force the document stream to a (possibly temporary) file
        // so we don't modify the current position of the stream
        FileChannel channel = stream.getFileChannel();


        try {
            NPOIFSFileSystem fs = new NPOIFSFileSystem(channel);


            // Optimize a possible later parsing process by keeping
            // a reference to the already opened POI file system
            stream.setOpenContainer(fs);


            Set<String> names = new HashSet<String>();
            for (Entry entry : fs.getRoot()) {
                names.add(entry.getName());
            }
            return names;
        } catch (IOException e) {
            // Parse error in POI, so we don't know the file type

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     if(! file.exists()) {
        throw new FileNotFoundException(file.toString());
     }
     
     try {
        NPOIFSFileSystem fs = new NPOIFSFileSystem(file);
        return new HSSFWorkbook(fs.getRoot(), true);
     } catch(OfficeXmlFileException e) {
        OPCPackage pkg = OPCPackage.open(file);
        return new XSSFWorkbook(pkg);
     }
  }

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     */
    public void testDifferentPOIFS() throws Exception {
       // Open the two filesystems
       DirectoryNode[] files = new DirectoryNode[2];
       files[0] = (new POIFSFileSystem(HSSFTestDataSamples.openSampleFileStream("Simple.xls"))).getRoot();
       files[1] = (new NPOIFSFileSystem(HSSFTestDataSamples.getSampeFile("Simple.xls"))).getRoot();
       
       // Open without preserving nodes 
       for(DirectoryNode dir : files) {
          HSSFWorkbook workbook = new HSSFWorkbook(dir, false);
          HSSFSheet sheet = workbook.getSheetAt(0);

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     */
    public void testDifferentPOIFS() throws Exception {
       // Open the two filesystems
       DirectoryNode[] files = new DirectoryNode[2];
       files[0] = (new POIFSFileSystem(slTests.openResourceAsStream("basic_test_ppt_file.ppt"))).getRoot();
       files[1] = (new NPOIFSFileSystem(slTests.getFile("basic_test_ppt_file.ppt"))).getRoot();
       
       // Open directly 
       for(DirectoryNode dir : files) {
          PowerPointExtractor extractor = new PowerPointExtractor(dir, null);
          assertEquals(expectText, extractor.getText());

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       POIDataSamples docTests = POIDataSamples.getDocumentInstance();
       
       // Open the two filesystems
       DirectoryNode[] files = new DirectoryNode[2];
       files[0] = (new POIFSFileSystem(docTests.openResourceAsStream("test2.doc"))).getRoot();
       files[1] = (new NPOIFSFileSystem(docTests.getFile("test2.doc"))).getRoot();
       
       // Open directly 
       for(DirectoryNode dir : files) {
          WordExtractor extractor = new WordExtractor(dir);
          assertEquals(p_text1_block, extractor.getText());

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     */
    public void test51671() throws Exception
    {
        InputStream is = POIDataSamples.getDocumentInstance()
                .openResourceAsStream( "empty.doc" );
        NPOIFSFileSystem npoifsFileSystem = new NPOIFSFileSystem( is );
        HWPFDocument hwpfDocument = new HWPFDocument(
                npoifsFileSystem.getRoot() );
        hwpfDocument.write( new ByteArrayOutputStream() );
    }

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