Example usage for java.nio.channels FileChannel transferFrom

Introduction

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

Prototype

public abstract long transferFrom(ReadableByteChannel src, long position, long count) throws IOException;

Source Link

Document

Transfers bytes into this channel's file from the given readable byte channel.

Usage

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

private static void createFileFromZipFile(File file, ZipFile zipFile, ZipEntry zipEntry) throws IOException {
    if (!file.getParentFile().exists() && !file.getParentFile().mkdirs()) {
        throw new IOException("Can not create parent directory for " + file.toString());
    }/*  w  w w . j  av  a 2  s .  c  o  m*/
    file.createNewFile();
    FileOutputStream fout = null;
    FileChannel out = null;
    InputStream in = null;
    try {
        fout = new FileOutputStream(file);
        out = fout.getChannel();
        in = zipFile.getInputStream(zipEntry);
        out.transferFrom(Channels.newChannel(in), 0, Integer.MAX_VALUE);
    } finally {
        if (out != null)
            out.close();
        if (in != null)
            in.close();
        if (fout != null)
            fout.close();
    }
}

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

public static void copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        destFile.createNewFile();//from  www . j ava  2s . c om
    }

    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();
        }
    }
}

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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;/*ww w  .ja  v a  2 s  .  c o  m*/
    FileChannel dst = null;
    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);
    }
}

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From source file:phex.utils.FileUtils.java

/**
 * From Apache Jakarta Commons IO./*from  w  w  w . jav  a2  s .  c  o  m*/
 * 
 * Internal copy file method.
 * 
 * @param srcFile  the validated source file, not null
 * @param destFile  the validated destination file, not null
 * @param preserveFileDate  whether to preserve the file date
 * @throws IOException if an error occurs
 */
private static void doCopyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {
    if (destFile.exists() && destFile.isDirectory()) {
        throw new IOException("Destination '" + destFile + "' exists but is a directory");
    }

    FileChannel input = new FileInputStream(srcFile).getChannel();
    try {
        FileChannel output = new FileOutputStream(destFile).getChannel();
        try {
            output.transferFrom(input, 0, input.size());
        } finally {
            IOUtil.closeQuietly(output);
        }
    } finally {
        IOUtil.closeQuietly(input);
    }

    if (srcFile.length() != destFile.length()) {
        throw new IOException("Failed to copy full contents from '" + srcFile + "' to '" + destFile + "'");
    }
    if (preserveFileDate) {
        destFile.setLastModified(srcFile.lastModified());
    }
}

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

/**
 * Copies a source file to a destination file
 * @param source/* w  w  w  .java2s.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) {
            }
        ;
    }
}

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From source file:phex.util.FileUtils.java

/**
 * From Apache Jakarta Commons IO.//  ww w . j a  v  a 2  s . c  o m
 * <p>
 * Internal copy file method.
 *
 * @param srcFile          the validated source file, not null
 * @param destFile         the validated destination file, not null
 * @param preserveFileDate whether to preserve the file date
 * @throws IOException if an error occurs
 */
private static void doCopyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {
    if (destFile.exists() && destFile.isDirectory()) {
        throw new IOException("Destination '" + destFile + "' exists but is a directory");
    }

    FileChannel input = new FileInputStream(srcFile).getChannel();
    try {
        FileChannel output = new FileOutputStream(destFile).getChannel();
        try {
            output.transferFrom(input, 0, input.size());
        } finally {
            IOUtil.closeQuietly(output);
        }
    } finally {
        IOUtil.closeQuietly(input);
    }

    if (srcFile.length() != destFile.length()) {
        throw new IOException("Failed to copy full contents from '" + srcFile + "' to '" + destFile + '\'');
    }
    if (preserveFileDate) {
        destFile.setLastModified(srcFile.lastModified());
    }
}

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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;//from   ww w  .  j a  va2 s .c  om
    FileChannel fcDest = null;
    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);
        }
    }
}

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From source file:com.liferay.util.FileUtil.java

public static void copyFile(File source, File destination, boolean hardLinks) {
    if (!source.exists()) {
        return;/* w w  w  .  j  a  v a 2s.c o  m*/
    }

    if (hardLinks && !Config.getBooleanProperty("CONTENT_VERSION_HARD_LINK", true)) {
        hardLinks = false;
    }

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

        destination.getParentFile().mkdirs();
    }

    if (hardLinks) {
        // I think we need to be sure to unlink first
        if (destination.exists()) {
            JNALibrary.unlink(destination.getAbsolutePath());
        }

        try {
            JNALibrary.link(source.getAbsolutePath(), destination.getAbsolutePath());
            // setting this means we will try again if we cannot hard link
            if (!destination.exists()) {
                hardLinks = false;
            }
        } catch (IOException e) {
            Logger.error(FileUtil.class, "Can't create hardLink. source: " + source.getAbsolutePath()
                    + ", destination: " + destination.getAbsolutePath());
            // setting this means we will try again if we cannot hard link
            hardLinks = false;
        }

    }
    if (!hardLinks) {
        try {
            FileChannel srcChannel = new FileInputStream(source).getChannel();
            FileChannel dstChannel = new FileOutputStream(destination).getChannel();

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

            srcChannel.close();
            dstChannel.close();
        } catch (IOException ioe) {
            Logger.error(FileUtil.class, ioe.getMessage(), ioe);
        }
    }

}

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From source file:org.ops4j.pax.runner.platform.internal.StreamUtils.java

/**
 * Copy a stream to a destination. It does not close the streams.
 *
 * @param in          the stream to copy from
 * @param out         the stream to copy to
 * @param progressBar download progress feedback. Can be null.
 *
 * @throws IOException re-thrown//from w  ww . j a  va2s .co m
 */
public static void streamCopy(final InputStream in, final FileChannel out, final ProgressBar progressBar)
        throws IOException {
    NullArgumentException.validateNotNull(in, "Input stream");
    NullArgumentException.validateNotNull(out, "Output stream");
    final long start = System.currentTimeMillis();
    long bytes = 0;
    ProgressBar feedbackBar = progressBar;
    if (feedbackBar == null) {
        feedbackBar = new NullProgressBar();
    }
    try {
        ReadableByteChannel inChannel = Channels.newChannel(in);
        bytes = out.transferFrom(inChannel, 0, Integer.MAX_VALUE);
        inChannel.close();
    } finally {
        feedbackBar.increment(bytes, bytes / Math.max(System.currentTimeMillis() - start, 1));
        feedbackBar.stop();
    }
}

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From source file:log4JToXml.xmlToProperties.XmlToLog4jConverterImpl.java

private static void copyFile(File sourceFile, File destFile) throws IOException {

    FileChannel source = null;//from w w w .j  a v  a2  s. com
    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();
        }
    }
}

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