public static bool CheckNextTransferOperationSafety(Guid backupGuid, string backupName, int backupVersion, TransferJournalItemType backupType, TransferConfigManagerMessageHandler showMessage) {
if(showMessage == null){
TransferLog.Log("Can't check safety next transfer operation, because of showMessageHandle is null.");
return true;
}
Guid computerGuid = GetComputerGuid();
TransferJournalItem[] journal = LoadTransferJournal();
if (journal.Length == 0) return true;
switch (backupType) {
case TransferJournalItemType.Backup: {
for (int i = journal.Length - 1; i >= 0; i--) {
if ((journal[i].BackupId == backupGuid) && (journal[i].Type == TransferJournalItemType.Backup)) {
if (journal[i].ComputerId == computerGuid) return true;
for (int j = (i + 1); j < journal.Length; j++) {
if ((journal[j].BackupId == backupGuid) && (journal[j].Type == TransferJournalItemType.Restore) && (journal[j].ComputerId == computerGuid)) {
return true;
}
}
return showMessage(string.Format("Backup '{0}' was produced on another computer, but the recovery has not been on the current computer."
+ "\nDo you really want to back up '{0}'.", backupName));
}
}
}
break;
case TransferJournalItemType.Restore: {
for (int i = journal.Length - 1; i >= 0; i--) {
if(journal[i].BackupId == backupGuid){
if (journal[i].ComputerId == computerGuid) {
if (journal[i].BackupVersion != backupVersion) return true;
switch(journal[i].Type){
case TransferJournalItemType.Backup:
return showMessage(string.Format("Previous recovery of '{0}' was made on the current computer."
+ "\nDo you really want to make a second recovery of '{0}'?", backupName));
case TransferJournalItemType.Restore:
return showMessage(string.Format("Previous backup of '{0}' was made on the current computer."
+ "\nDo you really want to make recovery of it?", backupName));
default:
return true;
}
} else
return true;
}
}
}
break;
default:
return true;
}
return true;
}
public TransferJournalItem(DateTime actionTime, Guid backupId, int backupVersion, TransferJournalItemType type) {
ActionTime = actionTime;
BackupId = backupId;
BackupVersion = backupVersion;
Type = type;
ComputerId = TransferConfigManager.GetComputerGuid();
}