Java Utililty Methods FileChannel Copy

List of utility methods to do FileChannel Copy

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Description

The list of methods to do FileChannel Copy are organized into topic(s).

Method

intcopy(FileInputStream in, FileOutputStream out)
Copies bytes from a FileInputStream to a FileOutputStream. 
final long count = copyLarge(in, out);
return count > Integer.MAX_VALUE ? -1 : (int) count;
voidcopy(FileInputStream inputStream, FileOutputStream outputStream)
copy 
FileChannel srcChannel = null;
FileChannel desChannel = null;
try {
    srcChannel = inputStream.getChannel();
    desChannel = outputStream.getChannel();
    srcChannel.transferTo(0, srcChannel.size(), desChannel);
    srcChannel.close();
    desChannel.close();
...
voidcopy(FileInputStream iStream, FileOutputStream oStream)
Special optimized version of copying a FileInputStream to a FileOutputStream . 
try {
    FileChannel inChannel = iStream.getChannel();
    FileChannel outChannel = oStream.getChannel();
    long fileSize = inChannel.size();
    long offs = 0, doneCnt = 0, copyCnt = Math.min(65536, fileSize);
    do {
        doneCnt = inChannel.transferTo(offs, copyCnt, outChannel);
        offs += doneCnt;
...
voidcopy(final File aCopyFrom, final File aCopyTo)
This is a copy of the Utils package copy. 
if (!aCopyTo.getParentFile().isDirectory() && !aCopyTo.getParentFile().mkdirs()) {
    throw new IOException("Could not create copy to directory: " + aCopyTo.getAbsolutePath());
FileChannel lSrcChannel = new FileInputStream(aCopyFrom).getChannel();
FileChannel lDstChannel = new FileOutputStream(aCopyTo).getChannel();
Logger.getAnonymousLogger().fine("\tCopying from \"" + aCopyFrom.getCanonicalPath() + "\" to \""
        + aCopyTo.getCanonicalPath() + "\"");
lDstChannel.transferFrom(lSrcChannel, 0, lSrcChannel.size());
...
booleancopy(final File fromFile, final File toFile)
Copy a File. 
try {
    copyThrowsOnException(fromFile, toFile);
    return true;
} catch (IOException e) {
    e.printStackTrace();
    return false;
voidcopy(final File source, final File dest)
copy 
final FileChannel inChannel = new FileInputStream(source).getChannel();
final FileChannel outChannel = new FileOutputStream(dest).getChannel();
try {
    final int maxCount = (64 * 1024 * 1024) - (32 * 1024);
    final long size = inChannel.size();
    long position = 0;
    while (position < size)
        position += inChannel.transferTo(position, maxCount, outChannel);
...
voidcopy(final File src, File dst, final boolean overwrite)
Copy source file to destination. 
if (!src.isFile() || !src.exists()) {
    throw new IllegalArgumentException("Source file '" + src.getAbsolutePath() + "' not found!"); 
if (dst.exists()) {
    if (dst.isDirectory()) {
        dst = new File(dst, src.getName());
    } else if (dst.isFile()) {
        if (!overwrite) {
...
voidcopy(final String aSrcPath, final String aDestPath)
copy 
copy(new File(aSrcPath), new File(aDestPath));
voidcopy(final String aSrcPath, final String aDestPath)
copy 
copy(new File(aSrcPath), new File(aDestPath));
voidcopy(String fromPath, String toPath)
copy 
File sourceFile = new File(fromPath);
FileInputStream input = null;
FileOutputStream output = null;
FileChannel fcin = null;
FileChannel fcout = null;
input = new FileInputStream(sourceFile);
output = new FileOutputStream(toPath);
fcin = input.getChannel();
...