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.neo4j.server.webadmin.AbstractWebadminTest.java

private static void copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        destFile.createNewFile();/*ww  w.  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();
        }
    }
}

From source file:com.bellman.bible.service.common.FileManager.java

public static boolean copyFile(File fromFile, File toFile) {
    boolean ok = false;
    try {/*w w  w. j av a  2 s .  com*/
        // don't worry if tofile exists, allow overwrite
        if (fromFile.exists()) {
            //ensure the target dir exists or FileNotFoundException is thrown creating dst FileChannel
            File toDir = toFile.getParentFile();
            toDir.mkdir();

            long fromFileSize = fromFile.length();
            log.debug("Source file length:" + fromFileSize);
            if (fromFileSize > CommonUtils.getFreeSpace(toDir.getPath())) {
                // not enough room on SDcard
                ok = false;
            } else {
                // move the file
                FileInputStream srcStream = new FileInputStream(fromFile);
                FileChannel src = srcStream.getChannel();
                FileOutputStream dstStream = new FileOutputStream(toFile);
                FileChannel dst = dstStream.getChannel();
                try {
                    dst.transferFrom(src, 0, src.size());
                    ok = true;
                } finally {
                    src.close();
                    dst.close();
                    srcStream.close();
                    dstStream.close();
                }
            }
        } else {
            // fromfile does not exist
            ok = false;
        }
    } catch (Exception e) {
        log.error("Error moving file to sd card", e);
    }
    return ok;
}

From source file:org.uva.itast.blended.omr.pages.PDFPageImage.java

/**
 * @param filePath2//w ww.  j  av  a  2  s.  co m
 * @throws IOException 
 */
public static PDFFile loadPDFFile(File inputpath) throws IOException {
    RandomAccessFile raf = new RandomAccessFile(inputpath, "r"); //se carga la imagen pdf para leerla
    FileChannel channel = raf.getChannel();
    ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
    PDFFile pdffile = new PDFFile(buf);
    return pdffile;
}

From source file:org.wso2.carbon.esb.vfs.transport.test.ESBJAVA4679VFSPasswordSecurityTestCase.java

/**
 * Copy the given source file to the given destination
 *
 * @param sourceFile source file/*from  w w  w .j  a v a 2 s  . co m*/
 * @param destFile   destination file
 * @throws java.io.IOException
 */
public static void copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        destFile.createNewFile();
    }
    FileInputStream fileInputStream = null;
    FileOutputStream fileOutputStream = null;
    try {
        fileInputStream = new FileInputStream(sourceFile);
        fileOutputStream = new FileOutputStream(destFile);

        FileChannel source = fileInputStream.getChannel();
        FileChannel destination = fileOutputStream.getChannel();
        destination.transferFrom(source, 0, source.size());
    } finally {
        IOUtils.closeQuietly(fileInputStream);
        IOUtils.closeQuietly(fileOutputStream);
    }
}

From source file:edu.unc.lib.dl.util.FileUtils.java

public static void copyFile(File in, File out) throws IOException {
    FileChannel inChannel = new FileInputStream(in).getChannel();
    FileChannel outChannel = new FileOutputStream(out).getChannel();
    try {//from w ww .j a va  2  s .  com
        inChannel.transferTo(0, inChannel.size(), outChannel);
    } catch (IOException e) {
        throw e;
    } finally {
        if (inChannel != null)
            inChannel.close();
        if (outChannel != null)
            outChannel.close();
    }

}

From source file:Main.java

@SuppressWarnings("unused")
private static boolean copy2SingleFileByChannel(File sourceFile, File destFile) {
    boolean copyOK = true;
    FileInputStream inputStream = null;
    FileOutputStream outputStream = null;
    FileChannel inputChannel = null;
    FileChannel outputChannel = null;
    try {/*from w ww .j a  v a2  s.c om*/
        inputStream = new FileInputStream(sourceFile);
        outputStream = new FileOutputStream(destFile);
        inputChannel = inputStream.getChannel();
        outputChannel = outputStream.getChannel();
        inputChannel.transferTo(0, inputChannel.size(), outputChannel);
    } catch (Exception e) {
        copyOK = false;
    } finally {
        try {
            inputChannel.close();
            inputStream.close();
            outputChannel.close();
            outputStream.close();
        } catch (IOException e) {
            copyOK = false;
            e.printStackTrace();
        }
    }
    return copyOK;
}

From source file:org.ednovo.gooru.application.util.GooruImageUtil.java

public static PDFFile getPDFFile(String pdfPath) {
    ByteBuffer buf;//from   w ww  .j  a  v  a  2s  .  c  o  m
    PDFFile pdfFile = null;
    try {
        File file = new File(pdfPath);
        @SuppressWarnings("resource")
        RandomAccessFile accessFile = new RandomAccessFile(file, "r");
        FileChannel channel = accessFile.getChannel();
        buf = channel.map(MapMode.READ_ONLY, 0, channel.size());
        pdfFile = new PDFFile(buf);
    } catch (Exception e) {
        LOGGER.error("getPDFFile: " + e);
    }
    return pdfFile;

}

From source file:Main.java

private static void CopyFile(String srcPath, String dstPath) {
    FileChannel srcChannel = null;
    FileChannel dstChannel = null;
    try {//from w w  w  . j  a  v a 2  s  .c  o m
        // Open files
        srcChannel = (new FileInputStream(srcPath)).getChannel();
        dstChannel = (new FileOutputStream(dstPath)).getChannel();
        // Transfer the data
        dstChannel.transferFrom(srcChannel, 0, srcChannel.size());
        // Close the files
        if (srcChannel != null) {
            srcChannel.close();
        }
        if (dstChannel != null) {
            dstChannel.close();
        }
    } catch (FileNotFoundException ex) {
        Log.i("CopyFile", "File not found " + ex.getMessage());
        ex.printStackTrace();
    } catch (IOException ex) {
        Log.i("CopyFile", "Transfer data error " + ex.getMessage());
        ex.printStackTrace();
    }
}

From source file:r2b.apps.utils.FileUtils.java

/**
 * Copy src to dst./*from  www  . j a v a2s . com*/
 * @param src Source file.
 * @param dst Destination file.
 */
public static void copy(final File src, File dst) {
    try {
        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();
        outStream.close();
    } catch (IOException e) {
        Logger.e(FileUtils.class.getSimpleName(), e.toString());
    }
}

From source file:Main.java

public static boolean fileCopy(File srcFile, File dstFile) {
    int length = 1048891;
    FileChannel inC = null;
    FileChannel outC = null;/* w  w w .j ava 2 s . c  o m*/
    try {
        FileInputStream in = new FileInputStream(srcFile);
        FileOutputStream out = new FileOutputStream(dstFile);
        inC = in.getChannel();
        outC = out.getChannel();
        ByteBuffer b = null;
        while (inC.position() < inC.size()) {
            if ((inC.size() - inC.position()) < length) {
                length = (int) (inC.size() - inC.position());
            } else {
                length = 1048891;
            }
            b = ByteBuffer.allocateDirect(length);
            inC.read(b);
            b.flip();
            outC.write(b);
            outC.force(false);
        }

        return true;
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    } finally {
        try {
            if (inC != null && inC.isOpen()) {
                inC.close();
            }
            if (outC != null && outC.isOpen()) {
                outC.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}