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lola: Add log message when performing rollback of TransactionLogs #264

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lola: Add log message when performing rollback of TransactionLogs #264

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18 changes: 15 additions & 3 deletions score/mw/com/impl/bindings/lola/transaction_log_set.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
#include "score/mw/com/impl/bindings/lola/transaction_log_set.h"

#include "score/mw/com/impl/com_error.h"

#include "score/mw/log/logging.h"
#include "score/result/result.h"

Expand Down Expand Up @@ -97,9 +98,20 @@ ResultBlank TransactionLogSet::RollbackProxyTransactions(
const auto transaction_log_node_iterators_to_be_rolled_back =
FindTransactionLogNodesToBeRolledBack(transaction_log_id);

// Keep trying to rollback a TransactionLog. If a rollback succeeds, return. If a rollback fails, try to rollback
// the next TransactionLog. If there are only TransactionLogs remaining which cannot be rolled back, return an
// error.
if (transaction_log_node_iterators_to_be_rolled_back.empty())
{
return {};
}

log::LogInfo("lola")
<< "Performing rollback for TransactionLogId: " << transaction_log_id
<< ". This should only happen in a restart situation (i.e. in which the process containing the Proxy "
"previously crashed and has now restarted). If this is not the case, the ApplicationId (defined in the "
"configuration) of two processes may not be unique.";

// Keep trying to rollback a TransactionLog. If a rollback succeeds, return. If a rollback fails, try to
// rollback the next TransactionLog. If there are only TransactionLogs remaining which cannot be rolled back,
// return an error.
ResultBlank rollback_result{};
for (const auto transaction_log_node_it : transaction_log_node_iterators_to_be_rolled_back)
{
Expand Down
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