Example usage for java.nio.channels FileChannel size

List of usage examples for java.nio.channels FileChannel size

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Introduction

In this page you can find the example usage for java.nio.channels FileChannel size.

Prototype

public abstract long size() throws IOException;

Source Link

Document

Returns the current size of this channel's file.

Usage

From source file:org.lnicholls.galleon.util.Tools.java

public static void copy(File src, File dst) {
    try {/*from   ww  w  . ja va 2s .c om*/
        FileChannel srcChannel = new FileInputStream(src).getChannel();
        FileChannel dstChannel = new FileOutputStream(dst).getChannel();
        dstChannel.transferFrom(srcChannel, 0, srcChannel.size());
        srcChannel.close();
        srcChannel = null;
        dstChannel.close();
        dstChannel = null;
    } catch (IOException ex) {
        Tools.logException(Tools.class, ex, dst.getAbsolutePath());
    }
}

From source file:com.almunt.jgcaap.systemupdater.DownloadService.java

public void copy(File src, File dst) throws IOException {
    FileInputStream inStream = new FileInputStream(src);
    FileOutputStream outStream = new FileOutputStream(dst);
    FileChannel inChannel = inStream.getChannel();
    FileChannel outChannel = outStream.getChannel();
    inChannel.transferTo(0, inChannel.size(), outChannel);
    inStream.close();//from  ww  w.  j a va2  s.c o  m
    outStream.close();
}

From source file:com.thinkberg.moxo.vfs.s3.jets3t.Jets3tFileObject.java

protected void doDetach() throws Exception {
    // TODO do not send immediately but put in some kind of upload queue
    if (attached && changed) {
        System.err.println("Detaching changed object: " + object);
        if (cacheFile != null) {
            FileChannel cacheFc = getCacheFileChannel();
            object.setContentLength(cacheFc.size());
            object.setDataInputStream(getInputStream());
        }//from ww w .ja  v  a 2 s  .  c  o m
        System.err.println(object);
        service.putObject(bucket, object);
        attached = false;
    }
}

From source file:org.cloudata.core.commitlog.FileTransferThread.java

private void transfer(FileChannel[] channelList, SocketChannel socketChannel) {
    for (FileChannel fc : channelList) {
        try {//w ww  .  j ava  2  s.c o m
            long numTransferred = 0;
            long pos = fc.position();
            long totalLength = fc.size() - pos;
            long count = totalLength;

            LOG.info(dirName + " start File Transfer:" + pos + "," + totalLength);
            while ((numTransferred += fc.transferTo(pos, count, socketChannel)) < totalLength) {
                pos += numTransferred;
                count -= numTransferred;
            }
            //LOG.info("End File Transfer:" + pos + "," + totalLength);
        } catch (IOException e) {
            LOG.warn("transfering file is fail due to : ", e);
        } finally {
            if (fc != null) {
                try {
                    fc.close();
                } catch (IOException e) {
                    LOG.warn("closing file is fail due to : ", e);
                }
            }
        }
    }
}

From source file:org.apache.tajo.tuple.offheap.OffHeapRowBlock.java

public boolean copyFromChannel(FileChannel channel, TableStats stats) throws IOException {
    if (channel.position() < channel.size()) {
        clear();//from   w  w  w  .j  a  v a  2  s  .  c o m

        buffer.clear();
        channel.read(buffer);
        memorySize = buffer.position();

        while (position < memorySize) {
            long recordPtr = address + position;

            if (remain() < SizeOf.SIZE_OF_INT) {
                channel.position(channel.position() - remain());
                memorySize = (int) (memorySize - remain());
                return true;
            }

            int recordSize = UNSAFE.getInt(recordPtr);

            if (remain() < recordSize) {
                channel.position(channel.position() - remain());
                memorySize = (int) (memorySize - remain());
                return true;
            }

            position += recordSize;
            rowNum++;
        }

        return true;
    } else {
        return false;
    }
}

From source file:com.geekandroid.sdk.sample.crop.ResultActivity.java

private void copyFileToDownloads(Uri croppedFileUri) throws Exception {
    String downloadsDirectoryPath = Environment
            .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
    String filename = String.format("%d_%s", Calendar.getInstance().getTimeInMillis(),
            croppedFileUri.getLastPathSegment());

    File saveFile = new File(downloadsDirectoryPath, filename);

    FileInputStream inStream = new FileInputStream(new File(croppedFileUri.getPath()));
    FileOutputStream outStream = new FileOutputStream(saveFile);
    FileChannel inChannel = inStream.getChannel();
    FileChannel outChannel = outStream.getChannel();
    inChannel.transferTo(0, inChannel.size(), outChannel);
    inStream.close();/*from ww w .  j  a va2  s.c om*/
    outStream.close();

    showNotification(saveFile);
}

From source file:ar.com.init.agros.license.LicenseVerifier.java

private boolean isMasterLicense(String file) throws IOException, FileNotFoundException {
    File licenseFile = new File(file);
    FileChannel fc = (new FileInputStream(licenseFile)).getChannel();
    byte[] bytes = new byte[(int) fc.size()];
    ByteBuffer bb = ByteBuffer.wrap(bytes);
    fc.read(bb);/*from   w ww .j a v  a2 s.  c o m*/
    String hash = DigestUtils.md5Hex(bytes);
    fc.close();
    boolean isMaster = hash.equals(MASTER_LICENSE_HASH);
    return isMaster;
}

From source file:org.lenskit.data.packed.BinaryRatingDAOTest.java

@Test
public void testBufferDAO() throws IOException {
    File file = folder.newFile("ratings.bin");
    BinaryRatingPacker packer = BinaryRatingPacker.open(file);
    try {/*from   w ww  .ja v  a  2 s  .  c  o m*/
        packer.writeRatings(ratings);
    } finally {
        packer.close();
    }

    ByteBuffer buffer;
    try (FileInputStream istr = new FileInputStream(file)) {
        FileChannel chan = istr.getChannel();
        buffer = chan.map(FileChannel.MapMode.READ_ONLY, 0, chan.size());
    }

    BinaryRatingDAO dao = BinaryRatingDAO.fromBuffer(buffer);
    verifySimpleDAO(dao);
}

From source file:com.sm.store.utils.FileStore.java

private boolean checkSignature(FileChannel channel) throws IOException {
    ByteBuffer intBytes = ByteBuffer.allocate(OFFSET);
    if (channel.size() == 0) {
        intBytes.putInt(MAGIC);/* w  w  w  .  java  2s.c  o m*/
        intBytes.flip();
        channel.write(intBytes);
        return true;
    } else {
        channel.read(intBytes);
        intBytes.rewind();
        if (intBytes.getInt() != MAGIC)
            throw new StoreException("Header mismatch expect " + MAGIC + " read " + intBytes.getInt());
    }
    return true;
}

From source file:org.openmrs.module.formentry.FormEntryUtil.java

/**
 * Generates an expanded 'starter XSN'. This starter is essentially a blank XSN template to play
 * with in Infopath. Should be used similar to
 * <code>org.openmrs.module.formentry.FormEntryUtil.expandXsnContents(java.lang.String)</code>
 * Generates an expanded 'starter XSN'. This starter is essentially a blank XSN template to play
 * with in Infopath. Should be used similar to
 * <code>org.openmrs.formentry.FormEntryUtil.expandXsnContents(java.lang.String)</code>
 * /*from   w w  w  . j a v a2s  .c o  m*/
 * @return File directory holding blank xsn contents
 * @throws IOException
 */
public static File getExpandedStarterXSN() throws IOException {

    // temp directory to hold the new xsn contents
    File tempDir = FormEntryUtil.createTempDirectory("XSN-starter");
    if (tempDir == null)
        throw new IOException("Failed to create temporary directory");

    // iterate over and copy each file in the given folder
    File starterDir = getResourceFile(FormEntryConstants.FORMENTRY_STARTER_XSN_FOLDER_PATH);
    for (File f : starterDir.listFiles()) {
        File newFile = new File(tempDir, f.getName());
        FileChannel in = null, out = null;
        try {
            in = new FileInputStream(f).getChannel();
            out = new FileOutputStream(newFile).getChannel();
            in.transferTo(0, in.size(), out);
        } finally {
            if (in != null)
                in.close();
            if (out != null)
                out.close();
        }
    }

    return tempDir;
}