context.getConfiguration().set(
DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH,
targetFilePath.getParent().toString()); // Parent directory.
copyMapper.setup(context);
final CopyListingFileStatus sourceFileStatus = new CopyListingFileStatus(
fs.getFileStatus(sourceFilePath));
long before = fs.getFileStatus(targetFilePath).getModificationTime();
copyMapper.map(new Text(DistCpUtils.getRelativePath(
new Path(SOURCE_PATH), sourceFilePath)), sourceFileStatus, context);