public void restore(
RestoreListener listener,
String username,
Object credentials,
String newCredentials,
File f,
String uri)
throws XMLDBException, FileNotFoundException, IOException, SAXException,
ParserConfigurationException, URISyntaxException, AuthenticationException,
ConfigurationException, PermissionDeniedException {
// login
final DBBroker broker = db.authenticate(username, credentials);
try {
// set the new password
setAdminCredentials(broker, newCredentials);
// get the backup descriptors, can be more than one if it was an incremental backup
final Stack<BackupDescriptor> descriptors = getBackupDescriptors(f);
final SAXParserFactory saxFactory = SAXParserFactory.newInstance();
saxFactory.setNamespaceAware(true);
saxFactory.setValidating(false);
final SAXParser sax = saxFactory.newSAXParser();
final XMLReader reader = sax.getXMLReader();
try {
listener.restoreStarting();
while (!descriptors.isEmpty()) {
final BackupDescriptor descriptor = descriptors.pop();
final EXistInputSource is = descriptor.getInputSource();
is.setEncoding("UTF-8");
final SystemImportHandler handler =
new SystemImportHandler(broker, listener, uri, descriptor);
reader.setContentHandler(handler);
reader.parse(is);
}
} finally {
listener.restoreFinished();
}
} finally {
db.release(broker);
}
}
private Stack<BackupDescriptor> getBackupDescriptors(File contents)
throws XMLDBException, IOException {
final Stack<BackupDescriptor> descriptors = new Stack<BackupDescriptor>();
do {
final BackupDescriptor bd = getBackupDescriptor(contents);
descriptors.push(bd);
// check if the system collection is in the backup. This should be processed first
final BackupDescriptor sysDescriptor =
bd.getChildBackupDescriptor(XmldbURI.SYSTEM_COLLECTION_NAME);
// check if the system/security collection is in the backup, this must be the first system
// collection processed
if (sysDescriptor != null) {
descriptors.push(sysDescriptor);
final BackupDescriptor secDescriptor = sysDescriptor.getChildBackupDescriptor("security");
if (secDescriptor != null) {
descriptors.push(secDescriptor);
}
}
contents = null;
final Properties properties = bd.getProperties();
if ((properties != null) && "yes".equals(properties.getProperty("incremental", "no"))) {
final String previous = properties.getProperty("previous", "");
if (previous.length() > 0) {
contents = new File(bd.getParentDir(), previous);
if (!contents.canRead()) {
throw new XMLDBException(
ErrorCodes.PERMISSION_DENIED,
"Required part of incremental backup not found: " + contents.getAbsolutePath());
}
}
}
} while (contents != null);
return descriptors;
}
