@Override
public void importData(ImportStrategy importStrategy) throws Exception {
PortalData dst =
dataStorage.getPortalConfig(new PortalKey(siteKey.getTypeName(), siteKey.getName()));
switch (importStrategy) {
// Really doesn't make sense to "merge" site layout data. Really two modes, conserve (keep)
// and overwrite.
case CONSERVE:
if (dst == null) {
dst = data;
rollbackDelete = data;
} else {
dst = null;
}
break;
case MERGE:
case OVERWRITE:
if (dst == null) {
rollbackDelete = data;
} else {
rollbackSave = dst;
}
dst = data;
break;
}
if (dst != null) {
if (rollbackDelete == null) {
dataStorage.save(dst);
} else {
dataStorage.create(dst);
}
}
}
@Override
public void rollback() throws Exception {
if (rollbackDelete != null) {
dataStorage.remove(rollbackDelete);
} else if (rollbackSave != null) {
dataStorage.save(rollbackSave);
}
}