/** Permission checks to access file */
private void checkAccess(UnixPath file, boolean checkRead, boolean checkWrite) {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
if (checkRead) file.checkRead();
if (checkWrite) file.checkWrite();
sm.checkPermission(new RuntimePermission("accessUserInformation"));
}
}
@Override
public BasicFileAttributes readAttributes() throws IOException {
file.checkRead();
try {
UnixFileAttributes attrs = UnixFileAttributes.get(file, followLinks);
return attrs.asBasicFileAttributes();
} catch (UnixException x) {
x.rethrowAsIOException(file);
return null; // keep compiler happy
}
}
@Override
public String implProbeContentType(Path obj) throws IOException {
if (!gioAvailable) return null;
if (!(obj instanceof UnixPath)) return null;
UnixPath path = (UnixPath) obj;
NativeBuffer buffer = NativeBuffers.asNativeBuffer(path.getByteArrayForSysCalls());
try {
// GIO may access file so need permission check
path.checkRead();
byte[] type = probeGio(buffer.address());
return (type == null) ? null : Util.toString(type);
} finally {
buffer.release();
}
}
