/**
* Internally undo recorded changes we did so far.
*
* @return whether the state required undo actions
*/
boolean undoChanges() {
final State state = stateUpdater.getAndSet(this, State.ROLLBACK_ONLY);
if (state == State.COMPLETED || state == State.ROLLBACK_ONLY) {
// Was actually completed already
return false;
}
PatchingTaskContext.Mode currentMode = this.mode;
mode = PatchingTaskContext.Mode.UNDO;
final PatchContentLoader loader = PatchContentLoader.create(miscBackup, null, null);
// Undo changes for the identity
undoChanges(identityEntry, loader);
// TODO maybe check if we need to do something for the layers too !?
if (state == State.INVALIDATE || currentMode == PatchingTaskContext.Mode.ROLLBACK) {
// For apply the state needs to be invalidate
// For rollback the files are invalidated as part of the tasks
final PatchingTaskContext.Mode mode =
currentMode == PatchingTaskContext.Mode.APPLY
? PatchingTaskContext.Mode.ROLLBACK
: PatchingTaskContext.Mode.APPLY;
for (final File file : moduleInvalidations) {
try {
PatchModuleInvalidationUtils.processFile(file, mode);
} catch (Exception e) {
PatchLogger.ROOT_LOGGER.debugf(e, "failed to restore state for %s", file);
}
}
}
return true;
}
