/**
* Check that the file given by the string path (or directory, if flagged) exists and is readable.
*
* @param file the absolute path to the file
* @param checkDirectory check as a directory if this flag set
* @throws StandardException
*/
public static void validateReadable(String file, boolean checkDirectory)
throws StandardException {
if (file == null) return;
DistributedFileSystem fsLayer = getFileSystem(file);
FileInfo info;
try {
info = fsLayer.getInfo(file);
} catch (IOException e) {
throw Exceptions.parseException(e);
}
if (!info.exists() || (checkDirectory && info.isDirectory()))
throw ErrorState.LANG_FILE_DOES_NOT_EXIST.newException(file);
if (!info.isReadable()) {
throw ErrorState.LANG_NO_READ_PERMISSION.newException(info.getUser(), info.getGroup(), file);
}
}
/**
* ValidateWritable FileSystem
*
* @param path the path to check
* @param checkDirectory if true, then ensure that the file specified by {@code path} is not a
* directory
* @throws StandardException
*/
public static void validateWritable(String path, boolean checkDirectory)
throws StandardException {
// check that the badLogDirectory exists and is writable
if (path == null) return;
DistributedFileSystem fsLayer = getFileSystem(path);
FileInfo info;
try {
info = fsLayer.getInfo(path);
} catch (IOException e) {
throw Exceptions.parseException(e);
}
if (checkDirectory && !info.isDirectory()) {
throw ErrorState.DATA_FILE_NOT_FOUND.newException(path);
}
if (!info.isWritable()) {
throw ErrorState.LANG_NO_WRITE_PERMISSION.newException(info.getUser(), info.getGroup(), path);
}
}