Examples of org.apache.poi.poifs.eventfilesystem.POIFSReader

Package org.apache.poi.poifs.eventfilesystem

Examples of org.apache.poi.poifs.eventfilesystem.POIFSReader

org.apache.poi.poifs.eventfilesystem.POIFSReader
An event-driven reader for POIFS file systems. Users of this class first create an instance of it, then use the registerListener methods to register POIFSReaderListener instances for specific documents. Once all the listeners have been registered, the read() method is called, which results in the listeners being notified as their documents are read. @author Marc Johnson (mjohnson at apache dot org)

            System.err.println(
                "two arguments required: one input file name and one output file name");
        }
        else
        {
            POIFSReader     reader     = new POIFSReader();
            POIFSFileSystem filesystem = new POIFSFileSystem();


            reader.registerListener(new ReaderWriter(filesystem));
            FileInputStream istream = new FileInputStream(args[ 0 ]);


            reader.read(istream);
            istream.close();
            FileOutputStream ostream = new FileOutputStream(args[ 1 ]);


            filesystem.writeFilesystem(ostream);
            ostream.close();

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  private StringBuffer text = null;
  private POIFSReader reader = null;
  
  
  protected String extractText(InputStream input) throws Exception {
    this.reader = new POIFSReader();
    this.text = new StringBuffer();
    reader.registerListener(
            new ContentReaderListener(this.text),
            PPTConstants.POWERPOINT_DOCUMENT);
    input.reset();

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  /**
   * Extracts properties and text from an MS Document input stream
   */
  protected void extract(InputStream input) throws Exception {
    // First, extract properties
    this.reader = new POIFSReader();
    this.properties = new PropertiesBroker();
    this.reader.registerListener(
            new PropertiesReaderListener(this.properties),
            SummaryInformation.DEFAULT_STREAM_NAME);
    input.reset();

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                             SummaryInformation.DEFAULT_STREAM_NAME);
        poiFs.writeFilesystem(out);
        out.close();


        /* Read the POIFS: */
        final POIFSReader r = new POIFSReader();
        r.registerListener(new MyPOIFSReaderListener(),
                           SummaryInformation.DEFAULT_STREAM_NAME);
        r.read(new FileInputStream(filename));
    }

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        poiFs.writeFilesystem(out);
        out.close();


        /* Read the POIFS: */
        final PropertySet[] psa = new PropertySet[1];
        final POIFSReader r = new POIFSReader();
        r.registerListener(new POIFSReaderListener()
            {
                public void processPOIFSReaderEvent
                    (final POIFSReaderEvent event)
                {
                    try
                    {
                        psa[0] = PropertySetFactory.create(event.getStream());
                    }
                    catch (Exception ex)
                    {
                        fail(org.apache.poi.hpsf.Util.toString(ex));
                    }
                }


            },
            SummaryInformation.DEFAULT_STREAM_NAME);
        r.read(new FileInputStream(filename));
        Assert.assertNotNull(psa[0]);
        Assert.assertTrue(psa[0].isSummaryInformation());


        final Section s = (Section) (psa[0].getSections().get(0));
        Object p1 = s.getProperty(PropertyIDMap.PID_AUTHOR);

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        poiFs.writeFilesystem(out);
        out.close();


        /* Read the POIFS: */
        final PropertySet[] psa = new PropertySet[1];
        final POIFSReader r = new POIFSReader();
        r.registerListener(new POIFSReaderListener()
            {
                public void processPOIFSReaderEvent
                    (final POIFSReaderEvent event)
                {
                    try
                    {
                        psa[0] = PropertySetFactory.create(event.getStream());
                    }
                    catch (Exception ex)
                    {
                        ex.printStackTrace();
                        throw new RuntimeException(ex.toString());
                        /* FIXME (2): Replace the previous line by the following
                         * one once we no longer need JDK 1.3 compatibility. */
                        // throw new RuntimeException(ex);
                    }
                }
            },
            STREAM_NAME);
        r.read(new FileInputStream(filename));
        Assert.assertNotNull(psa[0]);
        Section s = (Section) (psa[0].getSections().get(0));
        assertEquals(s.getFormatID(), formatID);
        Object p = s.getProperty(2);
        Assert.assertEquals(SECTION1, p);

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    public static POIFile[] readPOIFiles(final File poiFs,
                                         final String[] poiFiles)
        throws FileNotFoundException, IOException
    {
        final List files = new ArrayList();
        POIFSReader r = new POIFSReader();
        POIFSReaderListener pfl = new POIFSReaderListener()
        {
            public void processPOIFSReaderEvent(final POIFSReaderEvent event)
            {
                try
                {
                    final POIFile f = new POIFile();
                    f.setName(event.getName());
                    f.setPath(event.getPath());
                    final InputStream in = event.getStream();
                    final ByteArrayOutputStream out =
                        new ByteArrayOutputStream();
                    Util.copy(in, out);
                    out.close();
                    f.setBytes(out.toByteArray());
                    files.add(f);
                }
                catch (IOException ex)
                {
                    ex.printStackTrace();
                    throw new RuntimeException(ex.getMessage());
                }
            }
        };
        if (poiFiles == null)
            /* Register the listener for all POI files. */
            r.registerListener(pfl);
        else
            /* Register the listener for the specified POI files
             * only. */
            for (int i = 0; i < poiFiles.length; i++)
                r.registerListener(pfl, poiFiles[i]);


        /* Read the POI filesystem. */
        r.read(new FileInputStream(poiFs));
        POIFile[] result = new POIFile[files.size()];
        for (int i = 0; i < result.length; i++)
            result[i] = (POIFile) files.get(i);
        return result;
    }

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     */
    public static POIFile[] readPropertySets(final File poiFs)
        throws FileNotFoundException, IOException
    {
        final List files = new ArrayList(7);
        final POIFSReader r = new POIFSReader();
        POIFSReaderListener pfl = new POIFSReaderListener()
        {
            public void processPOIFSReaderEvent(final POIFSReaderEvent event)
            {
                try
                {
                    final POIFile f = new POIFile();
                    f.setName(event.getName());
                    f.setPath(event.getPath());
                    final InputStream in = event.getStream();
                    if (PropertySet.isPropertySetStream(in))
                    {
                        final ByteArrayOutputStream out =
                            new ByteArrayOutputStream();
                        Util.copy(in, out);
                        out.close();
                        f.setBytes(out.toByteArray());
                        files.add(f);
                    }
                }
                catch (Exception ex)
                {
                    ex.printStackTrace();
                    throw new RuntimeException(ex.getMessage());
                }
            }
        };


        /* Register the listener for all POI files. */
        r.registerListener(pfl);


        /* Read the POI filesystem. */
        r.read(new FileInputStream(poiFs));
        POIFile[] result = new POIFile[files.size()];
        for (int i = 0; i < result.length; i++)
            result[i] = (POIFile) files.get(i);
        return result;
    }

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                             SummaryInformation.DEFAULT_STREAM_NAME);
        poiFs.writeFilesystem(out);
        out.close();


        /* Read the POIFS: */
        final POIFSReader r = new POIFSReader();
        r.registerListener(new MyPOIFSReaderListener(),
                           SummaryInformation.DEFAULT_STREAM_NAME);
        r.read(new FileInputStream(filename));
    }

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        poiFs.writeFilesystem(out);
        out.close();


        /* Read the POIFS: */
        final PropertySet[] psa = new PropertySet[1];
        final POIFSReader r = new POIFSReader();
        r.registerListener(new POIFSReaderListener()
            {
                public void processPOIFSReaderEvent
                    (final POIFSReaderEvent event)
                {
                    try
                    {
                        psa[0] = PropertySetFactory.create(event.getStream());
                    }
                    catch (Exception ex)
                    {
                        fail(org.apache.poi.hpsf.Util.toString(ex));
                    }
                }


            },
            SummaryInformation.DEFAULT_STREAM_NAME);
        r.read(new FileInputStream(filename));
        Assert.assertNotNull(psa[0]);
        Assert.assertTrue(psa[0].isSummaryInformation());


        final Section s = (Section) (psa[0].getSections().get(0));
        Object p1 = s.getProperty(PropertyIDMap.PID_AUTHOR);

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