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.jab.docsearch.utils.FileUtils.java

/**
 * Copy file/*from  ww w.j  ava  2s  .c  om*/
 *
 * @param sourceFilename       source file
 * @param destinationFilename  destination file
 */
public static boolean copyFile(String sourceFilename, String destinationFilename) {
    if (sourceFilename == null) {
        logger.warn("copyFile() failed because sourceFilename is null");
        return false;
    }
    if (destinationFilename == null) {
        logger.warn("copyFile() failed because destinationFilename is null");
        return false;
    }

    FileInputStream fis = null;
    FileOutputStream fos = null;
    FileChannel fcin = null;
    FileChannel fcout = null;
    try {
        // open stream and channel from input
        fis = new FileInputStream(sourceFilename);
        fcin = fis.getChannel();

        // open stream and channel from output
        fos = new FileOutputStream(destinationFilename);
        fcout = fos.getChannel();

        fcin.transferTo(0, fcin.size(), fcout);

        return true;
    } catch (IOException ioe) {
        logger.fatal("copyFile() failed", ioe);
        return false;
    } catch (SecurityException se) {
        logger.fatal("copyFile() failed", se);
        return false;
    } finally {
        try {
            if (fcin != null) {
                fcin.close();
            }
        } catch (IOException ioe) {
            logger.fatal("copyFile() can't close FileChannel");
        }

        try {
            if (fis != null) {
                fis.close();
            }
        } catch (IOException ioe) {
            logger.fatal("copyFile() can't close FileInputStream");
        }

        try {
            if (fcout != null) {
                fcout.close();
            }
        } catch (IOException ioe) {
            logger.fatal("copyFile() can't close FileChannel");
        }

        try {
            if (fos != null) {
                fos.close();
            }
        } catch (IOException ioe) {
            logger.fatal("copyFile() can't close FileOutputStream");
        }
    }
}

From source file:info.evanchik.eclipse.karaf.core.KarafCorePluginUtils.java

/**
 * Copies the source file to the destination file
 *
 * @param src/*from w ww  .ja  v a  2 s.  c  om*/
 *            the source file
 * @param dst
 *            the destination file
 * @throws IOException
 *             if there is a problem during the file copy
 */
public static void copyFile(final File src, final File dst) throws IOException {
    if (!src.exists()) {
        throw new FileNotFoundException("File does not exist: " + src.getAbsolutePath());
    }

    if (!dst.exists()) {
        dst.createNewFile();
    }

    FileChannel source = null;
    FileChannel destination = null;
    try {
        source = new FileInputStream(src).getChannel();
        destination = new FileOutputStream(dst).getChannel();

        destination.transferFrom(source, 0, source.size());
    } finally {
        if (source != null) {
            source.close();
        }

        if (destination != null) {
            destination.close();
        }
    }
}

From source file:org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache.java

private static long[] getBlockSizes(HdfsBlockLocation[] locs) throws Exception {
    long[] sizes = new long[locs.length];
    for (int i = 0; i < locs.length; i++) {
        HdfsBlockLocation loc = locs[i];
        String bpid = loc.getLocatedBlock().getBlock().getBlockPoolId();
        Block block = loc.getLocatedBlock().getBlock().getLocalBlock();
        ExtendedBlock extBlock = new ExtendedBlock(bpid, block);
        FileInputStream blockInputStream = null;
        FileChannel blockChannel = null;
        try {//from www  . j av  a  2s.  c o  m
            blockInputStream = (FileInputStream) fsd.getBlockInputStream(extBlock, 0);
            blockChannel = blockInputStream.getChannel();
            sizes[i] = blockChannel.size();
        } finally {
            IOUtils.cleanup(LOG, blockChannel, blockInputStream);
        }
    }
    return sizes;
}

From source file:com.mods.grx.settings.utils.Utils.java

public static void file_copy(File ori_file, File dest_file) {

    try {//www. j a  v  a2 s .  c om
        FileInputStream i_s = new FileInputStream(ori_file);
        FileOutputStream o_s = new FileOutputStream(dest_file);
        FileChannel inChannel = i_s.getChannel();
        FileChannel outChannel = o_s.getChannel();
        inChannel.transferTo(0, inChannel.size(), outChannel);
        i_s.close();
        o_s.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:com.github.feribg.audiogetter.helpers.Utils.java

/**
 * Copy a file with the option to overwrite existing files
 *
 * @param src//  w  w  w .  j a va  2  s .c  o  m
 * @param dst
 * @param overwrite
 * @throws IOException
 */
public static void copyFile(File src, File dst, Boolean overwrite) throws IOException {
    FileChannel inChannel = new FileInputStream(src).getChannel();
    FileChannel outChannel = new FileOutputStream(dst).getChannel();
    if (!dst.exists() || (dst.exists() && overwrite)) {
        try {
            if (dst.exists()) {
                Log.d(App.TAG, "copyFile: destination exists but overwriting");
            }
            inChannel.transferTo(0, inChannel.size(), outChannel);
        } finally {
            if (inChannel != null)
                inChannel.close();
            if (outChannel != null)
                outChannel.close();
        }
    } else {
        Log.e(App.TAG, "copyFile: destination already exists:" + dst.getAbsolutePath());
        throw new IOException("copyFile: destination already exists:" + dst.getAbsolutePath());
    }
}

From source file:cd.education.data.collector.android.utilities.FileUtils.java

private static String actualCopy(File sourceFile, File destFile) {
    FileInputStream fileInputStream = null;
    FileOutputStream fileOutputStream = null;
    FileChannel src = null;
    FileChannel dst = null;//from w  ww.  j a v  a 2s. com
    try {
        fileInputStream = new FileInputStream(sourceFile);
        src = fileInputStream.getChannel();
        fileOutputStream = new FileOutputStream(destFile);
        dst = fileOutputStream.getChannel();
        dst.transferFrom(src, 0, src.size());
        dst.force(true);
        return null;
    } catch (FileNotFoundException e) {
        Log.e(t, "FileNotFoundException while copying file", e);
        return e.getMessage();
    } catch (IOException e) {
        Log.e(t, "IOException while copying file", e);
        return e.getMessage();
    } catch (Exception e) {
        Log.e(t, "Exception while copying file", e);
        return e.getMessage();
    } finally {
        IOUtils.closeQuietly(fileInputStream);
        IOUtils.closeQuietly(fileOutputStream);
        IOUtils.closeQuietly(src);
        IOUtils.closeQuietly(dst);
    }
}

From source file:com.evolveum.midpoint.util.MiscUtil.java

public static void copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        destFile.createNewFile();//  w ww.j  a  v  a 2 s  .c  o  m
    }

    FileChannel source = null;
    FileChannel destination = null;
    try {
        source = new FileInputStream(sourceFile).getChannel();
        destination = new FileOutputStream(destFile).getChannel();
        destination.transferFrom(source, 0, source.size());
    } finally {
        if (source != null) {
            source.close();
        }
        if (destination != null) {
            destination.close();
        }
    }
}

From source file:org.eclipse.thym.core.internal.util.FileUtils.java

private static void copyFile(File source, File target) throws IOException {

    File file = null;//from   w ww  .j  a va2 s  .c o  m
    if (source.isDirectory() && source.exists() && target.isDirectory() && target.exists()) {

        File[] children = source.listFiles();
        for (File child : children) {
            file = target;
            if (child.isDirectory()) {
                file = new File(target, child.getName());
                if (!file.exists())
                    file.mkdir();
            }
            copyFile(child, file);
        }
    } else {// source is a file
        if (target.isFile()) {
            file = target;
        } else {
            file = new File(target, source.getName());
        }

        FileChannel out = null;
        FileChannel in = null;
        try {
            if (!file.exists()) {
                file.createNewFile();
            }

            out = new FileOutputStream(file).getChannel();
            in = new FileInputStream(source).getChannel();
            in.transferTo(0, in.size(), out);
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (out != null)
                out.close();
            if (in != null)
                in.close();
        }
    }
}

From source file:ru.adios.budgeter.BundleProvider.java

private static void transferFile(String source, String destination, String errMsg) {
    final File sourceFile = new File(source);
    final File destFile = new File(destination);

    FileChannel fcSource = null;
    FileChannel fcDest = null;//from  w  ww . j a  va 2 s.co  m
    try {
        fcSource = new FileInputStream(sourceFile).getChannel();
        fcDest = new FileOutputStream(destFile).getChannel();
        fcDest.transferFrom(fcSource, 0, fcSource.size());
        fcSource.close();
        fcDest.close();
    } catch (IOException e) {
        logger.error(errMsg, e);
        throw new DataAccessResourceFailureException(errMsg, e);
    } finally {
        try {
            if (fcSource != null) {
                fcSource.close();
            }
            if (fcDest != null) {
                fcDest.close();
            }
        } catch (IOException ignore) {
            logger.warn("Exception while closing IO channels", ignore);
        }
    }
}

From source file:com.aurel.track.lucene.util.FileUtil.java

/**
 * Copies a source file to a destination file
 * @param source/*w  ww .j  a  va  2 s .c  o m*/
 * @param destination
 */
public static void copyFile(File source, File destination) {
    if (!source.exists()) {
        return;
    }

    if ((destination.getParentFile() != null) && (!destination.getParentFile().exists())) {

        destination.getParentFile().mkdirs();
    }

    FileChannel srcChannel = null;
    FileChannel dstChannel = null;

    try {
        srcChannel = new FileInputStream(source).getChannel();
        dstChannel = new FileOutputStream(destination).getChannel();

        dstChannel.transferFrom(srcChannel, 0, srcChannel.size());

        srcChannel.close();
        dstChannel.close();
    } catch (IOException ioe) {
        LOGGER.error(ExceptionUtils.getStackTrace(ioe));
    } finally {
        if (srcChannel != null)
            try {
                srcChannel.close();
            } catch (IOException ioe) {
            }
        ;
        if (dstChannel != null)
            try {
                dstChannel.close();
            } catch (IOException ioe) {
            }
        ;
    }
}