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;
}
