Package java.nio

Examples of java.nio.MappedByteBuffer.position()

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        writeDataToFile(fileOfReadWriteFileChannel);
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.READ_WRITE,
                10, CONTENT_LENGTH - 10);
        assertEquals(CONTENT_LENGTH - 10, mapped.limit());
        assertEquals(CONTENT.length() - 10, mapped.capacity());
        assertEquals(0, mapped.position());
        mapped.put(TEST_BYTES);
        ByteBuffer checkBuffer = ByteBuffer.allocate(CONTENT_LENGTH);
        readWriteFileChannel.read(checkBuffer);
        String expected = CONTENT.substring(0, 10) + "test"
                + CONTENT.substring(10 + "test".length());
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            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (capacity)", CONTENT_LEN, mapped.capacity());
            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (limit)", CONTENT_LEN, mapped.limit());
            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (position)", 0, mapped.position());

            // map not change channel's position
            assertEquals(0, readOnlyFileChannel.position());

            // Close the file and the channel before the next iteration
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        if (eh.e_shnum <= 0) {
            OpenGrokLogger.getLogger().log(Level.FINE, "Skipping file, no section headers");
            return null;
        }

        fmap.position(eh.e_shoff + (eh.e_shstrndx * eh.e_shentsize));
        ELFSection stringSection = new ELFSection(fmap);

        if (stringSection.sh_size == 0) {
            OpenGrokLogger.getLogger().log(Level.FINE, "Skipping file, no section name string table");
            return null;
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        ELFSection[] sections = new ELFSection[eh.e_shnum];
        int[] readables = new int[eh.e_shnum];

        int ri = 0;
        for (int i = 0; i < eh.e_shnum; i++) {
            fmap.position(eh.e_shoff + (i * eh.e_shentsize));

            sections[i] = new ELFSection(fmap);
            String sectionName = getName(stringSection.sh_offset, sections[i].sh_name, fmap);
            if (sectionName != null) {
                sectionMap.put(sectionName, sections[i].sh_offset);
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        }

        boolean lastPrintable = false;
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < ri; i++) {
            fmap.position(sections[readables[i]].sh_offset);
            int size = sections[readables[i]].sh_size;
            byte c;
            while (size-- > 0) {
                c = fmap.get();
                if (isReadable(c)) {
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                    }
                });
                FileChannel fc = raf.getChannel();
                fileSize = (int)fc.size();
                mapBuf = fc.map(FileChannel.MapMode.READ_ONLY, 0, fileSize);
                mapBuf.position(0);
                bufferRef = new WeakReference(mapBuf);
                fc.close();
            } catch (NullPointerException e) {
                throw new FontFormatException(e.toString());
            } catch (ClosedChannelException e) {
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        MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_WRITE, 0, len);
        int pos = magic.length + version_info.length + option.length +
                size_hi.length;
        byte value = bb.get(pos);
        value--;
        bb.position(pos);
        bb.put(value);
        bb.force();
        fc.truncate(len);
        fc.close();
        return value & 0xFF;
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        byte value = bb.get(pos);
        if (increment)
            value++;
        else
            value--;
        bb.position(pos);
        bb.put(value);
        bb.force();
        fc.truncate(len);
        fc.close();
        return value & 0xFF;
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        return dumpBuffer[getBufferIndex(index)].get(getBufferOffset(index));
    }

    synchronized void get(long position, byte[] chars) {
        MappedByteBuffer buffer = dumpBuffer[getBufferIndex(position)];
        buffer.position(getBufferOffset(position));
        buffer.get(chars);
    }

    private int getBufferIndex(long index) {
        return (int) (index >> BUFFER_SIZE_BITS);
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    }

    void get(long position, byte[] chars) {
        try {
            MappedByteBuffer buffer = bufferStripe[stripeId(position)];
            buffer.position(stripeOffs(position));
            buffer.get(chars);
        }
        catch(BufferUnderflowException e) {
            // catch cross stripe access
            int s = stripeId(position);
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