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#include "CondCore/CondDB/interface/Exception.h"
#include "CondCore/CondDB/interface/Auth.h"
#include "CondCore/CondDB/interface/DecodingKey.h"
#include "SessionImpl.h"
#include <memory>
#include "DbConnectionString.h"
//
//
#include "RelationalAccess/ISessionProxy.h"
#include "RelationalAccess/ITransaction.h"
namespace cond {
namespace persistency {
class CondDBTransaction : public ITransaction {
public:
CondDBTransaction(const std::shared_ptr<coral::ISessionProxy>& coralSession) : m_session(coralSession) {}
~CondDBTransaction() override {}
void commit() override { m_session->transaction().commit(); }
void rollback() override { m_session->transaction().rollback(); }
bool isActive() override { return m_session->transaction().isActive(); }
private:
std::shared_ptr<coral::ISessionProxy> m_session;
};
SessionImpl::SessionImpl() : coralSession() {}
SessionImpl::SessionImpl(std::shared_ptr<coral::ISessionProxy>& session,
const std::string& connectionStr,
const std::string& principalNm)
: coralSession(session), sessionHash(""), connectionString(connectionStr), principalName(principalNm) {
cond::auth::KeyGenerator kg;
sessionHash = kg.make(cond::auth::COND_SESSION_HASH_SIZE);
}
SessionImpl::~SessionImpl() { close(); }
void SessionImpl::close() {
if (isActive()) {
if (coralSession->transaction().isActive()) {
rollbackTransaction();
}
if (!lockedTags.empty()) {
startTransaction(false);
releaseTagLocks();
commitTransaction();
}
coralSession.reset();
}
transaction.reset();
}
bool SessionImpl::isActive() const { return coralSession.get(); }
void SessionImpl::startTransaction(bool readOnly) {
std::unique_lock<std::recursive_mutex> lock(transactionMutex);
if (!transaction.get()) {
coralSession->transaction().start(readOnly);
iovSchemaHandle = std::make_unique<IOVSchema>(coralSession->nominalSchema());
gtSchemaHandle = std::make_unique<GTSchema>(coralSession->nominalSchema());
runInfoSchemaHandle = std::make_unique<RunInfoSchema>(coralSession->nominalSchema());
transaction = std::make_unique<CondDBTransaction>(coralSession);
} else {
if (!readOnly)
throwException("An update transaction is already active.", "SessionImpl::startTransaction");
}
transaction->clients++;
transactionLock.swap(lock);
}
void SessionImpl::commitTransaction() {
std::unique_lock<std::recursive_mutex> lock;
lock.swap(transactionLock);
if (transaction) {
transaction->clients--;
if (!transaction->clients) {
transaction->commit();
transaction.reset();
iovSchemaHandle.reset();
gtSchemaHandle.reset();
runInfoSchemaHandle.reset();
}
}
}
void SessionImpl::rollbackTransaction() {
std::unique_lock<std::recursive_mutex> lock;
lock.swap(transactionLock);
if (transaction) {
transaction->rollback();
transaction.reset();
iovSchemaHandle.reset();
gtSchemaHandle.reset();
runInfoSchemaHandle.reset();
}
}
bool SessionImpl::isTransactionActive(bool deep) const {
if (!transaction)
return false;
if (!deep)
return true;
return transaction->isActive();
}
void SessionImpl::releaseTagLocks() {
iovSchema().tagAccessPermissionTable().removeEntriesForCredential(sessionHash,
cond::auth::COND_SESSION_HASH_CODE);
std::string lt("-");
std::string action("Lock removed by session ");
action += sessionHash;
for (const auto& tag : lockedTags) {
iovSchema().tagTable().unsetProtectionCode(tag, cond::auth::COND_DBTAG_LOCK_ACCESS_CODE);
iovSchema().tagLogTable().insert(tag,
boost::posix_time::microsec_clock::universal_time(),
cond::getUserName(),
cond::getHostName(),
cond::getCommand(),
action,
lt);
}
}
void SessionImpl::openIovDb(SessionImpl::FailureOnOpeningPolicy policy) {
if (!transaction.get())
throwException("The transaction is not active.", "SessionImpl::openIovDb");
if (!transaction->iovDbOpen) {
transaction->iovDbExists = iovSchemaHandle->exists();
transaction->iovDbOpen = true;
}
if (!transaction->iovDbExists) {
if (policy == CREATE) {
iovSchemaHandle->create();
transaction->iovDbExists = true;
} else {
if (policy == THROW)
throwException("IOV Database does not exist.", "SessionImpl::openIovDb");
}
}
}
void SessionImpl::openGTDb(SessionImpl::FailureOnOpeningPolicy policy) {
if (!transaction.get())
throwException("The transaction is not active.", "SessionImpl::openGTDb");
if (!transaction->gtDbOpen) {
transaction->gtDbExists = gtSchemaHandle->exists();
transaction->gtDbOpen = true;
}
if (!transaction->gtDbExists) {
if (policy == CREATE) {
gtSchemaHandle->create();
transaction->gtDbExists = true;
} else {
if (policy == THROW)
throwException("GT Database does not exist.", "SessionImpl::openGTDb");
}
}
}
void SessionImpl::openRunInfoDb() {
if (!transaction.get())
throwException("The transaction is not active.", "SessionImpl::openRunInfoDb");
if (!transaction->runInfoDbOpen) {
transaction->runInfoDbExists = runInfoSchemaHandle->exists();
transaction->runInfoDbOpen = true;
}
if (!transaction->runInfoDbExists) {
throwException("RunInfo Database does not exist.", "SessionImpl::openRunInfoDb");
}
}
void SessionImpl::openDb() {
if (!transaction.get())
throwException("The transaction is not active.", "SessionImpl::openIovDb");
if (!transaction->iovDbOpen) {
transaction->iovDbExists = iovSchemaHandle->exists();
transaction->iovDbOpen = true;
}
if (!transaction->gtDbOpen) {
transaction->gtDbExists = gtSchemaHandle->exists();
transaction->gtDbOpen = true;
}
if (!transaction->iovDbExists) {
iovSchemaHandle->create();
transaction->iovDbExists = true;
if (!transaction->gtDbExists) {
gtSchemaHandle->create();
transaction->gtDbExists = true;
}
}
}
IIOVSchema& SessionImpl::iovSchema() { return *iovSchemaHandle; }
IGTSchema& SessionImpl::gtSchema() { return *gtSchemaHandle; }
IRunInfoSchema& SessionImpl::runInfoSchema() { return *runInfoSchemaHandle; }
} // namespace persistency
} // namespace cond
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