/**
* Method called locally to the repository during {@link #rawAccess()}. Only the remoteable fields
* should be accessed during this method call since this will be a copy of the object originally
* called.
*
* @param abstractRepositoryI
* @param servant
* @param __current
*/
public void local(
AbstractRepositoryI abstractRepositoryI, PublicRepositoryI servant, Current __current)
throws Exception {
if ("touch".equals(command)) {
for (String arg : args) {
final CheckedPath checked = servant.checkPath(parse(arg), null, __current);
if (!checked.exists()) {
final CheckedPath parent = checked.parent();
if (!(parent.isDirectory() || checked.parent().mkdirs())) {
throw new RepositoryException(null, null, "cannot create directory: " + parent);
}
final FileBuffer buffer = checked.getFileBuffer("rw");
buffer.write(ByteBuffer.allocate(0));
buffer.close();
} else if (!checked.markModified()) {
throw new RepositoryException(null, null, "cannot touch file: " + checked);
}
}
} else if ("mkdir".equals(command)) {
boolean parents = false;
for (String arg : args) {
if ("-p".equals(arg)) {
parents = true;
continue;
}
final CheckedPath checked = servant.checkPath(parse(arg), null, __current);
if (parents) {
checked.mkdirs();
} else {
checked.mkdir();
}
}
} else if ("rm".equals(command)) {
if (args.size() == 1) {
final CheckedPath checked = servant.checkPath(parse(args.get(0)), null, __current);
if (!checked.delete()) {
throw new omero.grid.FileDeleteException(
null, null, "Delete file failed: " + args.get(0));
}
} else {
throw new omero.ApiUsageException(
null, null, "Command: " + command + " takes just one argument");
}
} else if ("checksum".equals(command)) {
if (args.size() == 3) {
final String checksumType = args.get(0);
final ChecksumAlgorithm algo = ChecksumAlgorithmMapper.getChecksumAlgorithm(checksumType);
final String expectedHash = args.get(1);
final CheckedPath checked = servant.checkPath(parse(args.get(2)), algo, __current);
final String currentHash = checked.hash();
if (!currentHash.equals(expectedHash)) {
// TODO: ADD ANNOTATION TO DATABASE HERE!
throw new omero.ResourceError(
null,
null,
String.format(
"Checksum mismatch (%s): expected=%s found=%s",
checksumType, expectedHash, currentHash));
}
} else {
throw new omero.ApiUsageException(
null, null, "'checksum' requires HASHER HASH FILEPATH, not: " + args.toString());
}
} else {
throw new omero.ApiUsageException(null, null, "Unknown command: " + command);
}
}
/**
* Internal method to be used by subclasses to perform any extra checks on the listed of {@link
* CheckedPath} instances before allowing the creation of directories.
*
* @param paths Not null, not empty. (Will be emptied by this method.)
* @param parents "mkdir -p" like flag.
* @param __current
*/
protected void makeCheckedDirs(
final LinkedList<CheckedPath> paths,
boolean parents,
Session s,
ServiceFactory sf,
SqlAction sql,
ome.system.EventContext effectiveEventContext)
throws ServerError {
CheckedPath checked;
// Since we now have some number of elements, we start at the most
// parent element and work our way down through all the parents.
// If the file exists, then we check its permissions. If it doesn't
// exist, it gets created.
while (paths.size() > 1) { // Only possible if `parents`
checked = paths.removeFirst();
if (checked.exists()) {
if (!checked.isDirectory()) {
throw new omero.ResourceError(null, null, "Path is not a directory.");
} else if (!checked.canRead()) {
throw new omero.ResourceError(null, null, "Directory is not readable");
}
assertFindDir(checked, s, sf, sql);
} else {
// This will fail if the directory already exists
try {
repositoryDao.register(repoUuid, checked, DIRECTORY_MIMETYPE, sf, sql);
} catch (ValidationException ve) {
if (ve.getCause() instanceof PSQLException) {
// Could have collided with another thread also creating the directory.
// See Trac #11096 regarding originalfile table uniqueness of columns repo, path, name.
// So, give the other thread time to complete registration.
SleepTimer.sleepFor(1000);
if (checked.exists()) {
// The path now exists! It did not a moment ago.
// We are not going to rethrow the validation exception,
// so we otherwise note that something unexpected did occur.
log.warn(
"retrying after exception in registering directory "
+ checked
+ ": "
+ ve.getCause());
// Another thread may have succeeded where this one failed,
// so try this directory again.
paths.add(0, checked);
continue;
}
}
// We cannot recover from the validation exception.
throw ve;
}
}
}
// Now we are ready to work on the actual intended path.
checked = paths.removeFirst(); // Size is now empty
if (checked.exists()) {
if (parents) {
assertFindDir(checked, s, sf, sql);
} else {
throw new omero.ResourceError(null, null, "Path exists on disk: " + checked.fsFile);
}
}
repositoryDao.register(repoUuid, checked, DIRECTORY_MIMETYPE, sf, sql);
}