Examples with Property org.apache.poi.poifs.property.Property used on opensource projects

Example 1 with Property

use of org.apache.poi.poifs.property.Property in project poi by apache.

the class POIFSReader method processProperties.

private void processProperties(final BlockList small_blocks, final BlockList big_blocks, final Iterator<Property> properties, final POIFSDocumentPath path) throws IOException {
    if (!properties.hasNext() && notifyEmptyDirectories) {
        Iterator<POIFSReaderListener> listeners = registry.getListeners(path, ".");
        while (listeners.hasNext()) {
            POIFSReaderListener pl = listeners.next();
            POIFSReaderEvent pe = new POIFSReaderEvent(null, path, null);
            pl.processPOIFSReaderEvent(pe);
        }
        return;
    }
    while (properties.hasNext()) {
        Property property = properties.next();
        String name = property.getName();
        if (property.isDirectory()) {
            POIFSDocumentPath new_path = new POIFSDocumentPath(path, new String[] { name });
            DirectoryProperty dp = (DirectoryProperty) property;
            processProperties(small_blocks, big_blocks, dp.getChildren(), new_path);
        } else {
            int startBlock = property.getStartBlock();
            Iterator<POIFSReaderListener> listeners = registry.getListeners(path, name);
            if (listeners.hasNext()) {
                int size = property.getSize();
                OPOIFSDocument document = null;
                if (property.shouldUseSmallBlocks()) {
                    document = new OPOIFSDocument(name, small_blocks.fetchBlocks(startBlock, -1), size);
                } else {
                    document = new OPOIFSDocument(name, big_blocks.fetchBlocks(startBlock, -1), size);
                }
                while (listeners.hasNext()) {
                    POIFSReaderListener listener = listeners.next();
                    listener.processPOIFSReaderEvent(new POIFSReaderEvent(new DocumentInputStream(document), path, name));
                }
            } else {
                // consume the document's data and discard it
                if (property.shouldUseSmallBlocks()) {
                    small_blocks.fetchBlocks(startBlock, -1);
                } else {
                    big_blocks.fetchBlocks(startBlock, -1);
                }
            }
        }
    }
}

Example 2 with Property

use of org.apache.poi.poifs.property.Property in project poi by apache.

the class OPOIFSFileSystem method processProperties.

private void processProperties(final BlockList small_blocks, final BlockList big_blocks, final Iterator<Property> properties, final DirectoryNode dir, final int headerPropertiesStartAt) throws IOException {
    while (properties.hasNext()) {
        Property property = properties.next();
        String name = property.getName();
        DirectoryNode parent = (dir == null) ? ((DirectoryNode) getRoot()) : dir;
        if (property.isDirectory()) {
            DirectoryNode new_dir = (DirectoryNode) parent.createDirectory(name);
            new_dir.setStorageClsid(property.getStorageClsid());
            processProperties(small_blocks, big_blocks, ((DirectoryProperty) property).getChildren(), new_dir, headerPropertiesStartAt);
        } else {
            int startBlock = property.getStartBlock();
            int size = property.getSize();
            OPOIFSDocument document = null;
            if (property.shouldUseSmallBlocks()) {
                document = new OPOIFSDocument(name, small_blocks.fetchBlocks(startBlock, headerPropertiesStartAt), size);
            } else {
                document = new OPOIFSDocument(name, big_blocks.fetchBlocks(startBlock, headerPropertiesStartAt), size);
            }
            parent.createDocument(document);
        }
    }
}

Example 3 with Property

use of org.apache.poi.poifs.property.Property in project poi by apache.

the class POIFSHeaderDumper method displayProperties.

public static void displayProperties(DirectoryProperty prop, String indent) {
    String nextIndent = indent + "  ";
    System.out.println(indent + "-> " + prop.getName());
    for (Property cp : prop) {
        if (cp instanceof DirectoryProperty) {
            displayProperties((DirectoryProperty) cp, nextIndent);
        } else {
            System.out.println(nextIndent + "=> " + cp.getName());
            System.out.print(nextIndent + "   " + cp.getSize() + " bytes in ");
            if (cp.shouldUseSmallBlocks()) {
                System.out.print("mini");
            } else {
                System.out.print("main");
            }
            System.out.println(" stream, starts at " + cp.getStartBlock());
        }
    }
}

Example 4 with Property

use of org.apache.poi.poifs.property.Property in project poi by apache.

the class TestNPOIFSFileSystem method writeZeroLengthEntries.

@Test
public void writeZeroLengthEntries() throws IOException {
    NPOIFSFileSystem fs1 = new NPOIFSFileSystem();
    DirectoryNode testDir = fs1.getRoot();
    DocumentEntry miniDoc;
    DocumentEntry normDoc;
    DocumentEntry emptyDoc;
    // Add mini and normal sized entries to start
    byte[] mini2 = new byte[] { -42, 0, -1, -2, -3, -4, -42 };
    testDir.createDocument("Mini2", new ByteArrayInputStream(mini2));
    // Add to the main stream
    byte[] main4106 = new byte[4106];
    main4106[0] = 41;
    main4106[4105] = 42;
    testDir.createDocument("Normal4106", new ByteArrayInputStream(main4106));
    // Now add some empty ones
    byte[] empty = new byte[0];
    testDir.createDocument("empty-1", new ByteArrayInputStream(empty));
    testDir.createDocument("empty-2", new ByteArrayInputStream(empty));
    testDir.createDocument("empty-3", new ByteArrayInputStream(empty));
    // Check
    miniDoc = (DocumentEntry) testDir.getEntry("Mini2");
    assertContentsMatches(mini2, miniDoc);
    normDoc = (DocumentEntry) testDir.getEntry("Normal4106");
    assertContentsMatches(main4106, normDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-1");
    assertContentsMatches(empty, emptyDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-2");
    assertContentsMatches(empty, emptyDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-3");
    assertContentsMatches(empty, emptyDoc);
    // Look at the properties entry, and check the empty ones
    //  have zero size and no start block
    NPropertyTable props = fs1._get_property_table();
    Iterator<Property> propsIt = props.getRoot().getChildren();
    Property prop = propsIt.next();
    assertEquals("Mini2", prop.getName());
    assertEquals(0, prop.getStartBlock());
    assertEquals(7, prop.getSize());
    prop = propsIt.next();
    assertEquals("Normal4106", prop.getName());
    // BAT, Props, SBAT, MIni
    assertEquals(4, prop.getStartBlock());
    assertEquals(4106, prop.getSize());
    prop = propsIt.next();
    assertEquals("empty-1", prop.getName());
    assertEquals(POIFSConstants.END_OF_CHAIN, prop.getStartBlock());
    assertEquals(0, prop.getSize());
    prop = propsIt.next();
    assertEquals("empty-2", prop.getName());
    assertEquals(POIFSConstants.END_OF_CHAIN, prop.getStartBlock());
    assertEquals(0, prop.getSize());
    prop = propsIt.next();
    assertEquals("empty-3", prop.getName());
    assertEquals(POIFSConstants.END_OF_CHAIN, prop.getStartBlock());
    assertEquals(0, prop.getSize());
    // Save and re-check
    NPOIFSFileSystem fs2 = writeOutAndReadBack(fs1);
    fs1.close();
    testDir = fs2.getRoot();
    miniDoc = (DocumentEntry) testDir.getEntry("Mini2");
    assertContentsMatches(mini2, miniDoc);
    normDoc = (DocumentEntry) testDir.getEntry("Normal4106");
    assertContentsMatches(main4106, normDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-1");
    assertContentsMatches(empty, emptyDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-2");
    assertContentsMatches(empty, emptyDoc);
    emptyDoc = (DocumentEntry) testDir.getEntry("empty-3");
    assertContentsMatches(empty, emptyDoc);
    // Check that a mini-stream was assigned, with one block used
    assertEquals(3, testDir.getProperty().getStartBlock());
    assertEquals(64, testDir.getProperty().getSize());
    // All done
    fs2.close();
}

Example 5 with Property

use of org.apache.poi.poifs.property.Property in project poi by apache.

the class PropertyBlock method createPropertyBlockArray.

/**
     * Create an array of PropertyBlocks from an array of Property
     * instances, creating empty Property instances to make up any
     * shortfall
     *
     * @param properties the Property instances to be converted into
     *                   PropertyBlocks, in a java List
     *
     * @return the array of newly created PropertyBlock instances
     */
public static BlockWritable[] createPropertyBlockArray(final POIFSBigBlockSize bigBlockSize, final List<Property> properties) {
    int _properties_per_block = bigBlockSize.getPropertiesPerBlock();
    int block_count = (properties.size() + _properties_per_block - 1) / _properties_per_block;
    Property[] to_be_written = new Property[block_count * _properties_per_block];
    System.arraycopy(properties.toArray(new Property[0]), 0, to_be_written, 0, properties.size());
    for (int j = properties.size(); j < to_be_written.length; j++) {
        // create an instance of an anonymous inner class that
        // extends Property
        to_be_written[j] = new Property() {

            protected void preWrite() {
            }

            public boolean isDirectory() {
                return false;
            }
        };
    }
    BlockWritable[] rvalue = new BlockWritable[block_count];
    for (int j = 0; j < block_count; j++) {
        rvalue[j] = new PropertyBlock(bigBlockSize, to_be_written, j * _properties_per_block);
    }
    return rvalue;
}