static int fetchExecuteResult(struct nuodb *db, Statement *stmt,
int64_t *rows_affected, int64_t *last_insert_id) {
ResultSet *resultSet = 0;
try {
resultSet = stmt->getGeneratedKeys();
// NuoDB uses -1 as a flag for zero-rows-affected
*rows_affected = std::max(0, stmt->getUpdateCount());
if (*rows_affected > 0 && resultSet->getMetaData()->getColumnCount() > 0) {
while (resultSet->next()) {
// TODO find out how to read the last id first
}
switch (resultSet->getMetaData()->getColumnType(1)) {
case NUOSQL_TINYINT:
case NUOSQL_SMALLINT:
case NUOSQL_INTEGER:
case NUOSQL_BIGINT:
case NUOSQL_FLOAT:
case NUOSQL_DOUBLE:
case NUOSQL_NUMERIC:
case NUOSQL_DECIMAL:
*last_insert_id = resultSet->getLong(1);
break;
default:
// This is to avoid a failure when trying to call resultSet->getLong() when
// the generated column has a string type and a default sequence. If the user
// passes a string that cannot be converted to long, an exception is thrown.
//
// Since this only happens when the string is user-provided, we don't need to
// worry about trying to parse the returned value to return to the user.
//
// See TestStringSequence for more details.
*last_insert_id = 0;
break;
}
} else {
*last_insert_id = 0;
}
resultSet->close();
return 0;
} catch (SQLException &e) {
if (resultSet) {
resultSet->close();
}
return setError(db, e);
}
}
int nuodb_resultset_close(struct nuodb *db, struct nuodb_resultset **rs) {
try {
if (rs && *rs) {
ResultSet *resultSet = reinterpret_cast<ResultSet *>(*rs);
resultSet->close();
*rs = 0;
}
return 0;
} catch (SQLException &e) {
return setError(db, e);
}
}
static int fetchExecuteResult(struct nuodb *db, Statement *stmt,
int64_t *rows_affected, int64_t *last_insert_id) {
ResultSet *resultSet = 0;
try {
resultSet = stmt->getGeneratedKeys();
// NuoDB uses -1 as a flag for zero-rows-affected
*rows_affected = std::max(0, stmt->getUpdateCount());
if (*rows_affected > 0 && resultSet->getMetaData()->getColumnCount() > 0) {
while (resultSet->next()) {
// TODO find out how to read the last id first
}
*last_insert_id = resultSet->getLong(1);
} else {
*last_insert_id = 0;
}
resultSet->close();
return 0;
} catch (SQLException &e) {
if (resultSet) {
resultSet->close();
}
return setError(db, e);
}
}
int nuodb_statement_query(struct nuodb *db, struct nuodb_statement *st,
struct nuodb_resultset **rs, int *column_count) {
ResultSet *resultSet = 0;
PreparedStatement *stmt = reinterpret_cast<PreparedStatement *>(st);
try {
bool hasResults = stmt->execute();
if (hasResults) {
resultSet = stmt->getResultSet();
} else {
resultSet = stmt->getGeneratedKeys();
}
*column_count = resultSet->getMetaData()->getColumnCount();
*rs = reinterpret_cast<struct nuodb_resultset *>(resultSet);
return 0;
} catch (SQLException &e) {
if (resultSet) {
resultSet->close();
}
return setError(db, e);
}
}
Collection *JDBCTemplate::getByCondition(std::string sql, object *qm)
{
Collection *col = std::vector();
Connection *conn = 0;
try
{
//调用钩子方法
conn = this->getConnection();
//调用原语操作
sql = this->prepareQuerySql(sql, qm);
PreparedStatement *pstmt = conn->prepareStatement(sql);
//调用原语操作
this->setQuerySqlValue(pstmt, qm);
ResultSet *rs = pstmt->executeQuery();
while(rs->next())
{
//调用原语操作
col->add(this->rs2Object(rs));
}
rs->close();
pstmt->close();
}
catch(Exception *err)
{
err->printStackTrace();
}
//JAVA TO C++ CONVERTER TODO TASK: There is no native C++ equivalent to the exception 'finally' clause:
finally
{
try
{
conn->close();
}
catch (SQLException *e)
{
e->printStackTrace();
}
}
return col;
}
vector<vector< vector<SkeletonSequence> > > getKFoldsVector(Connection *con,list<SkeletonSequence> *validationData){
vector<vector< vector<SkeletonSequence> > > kFoldsVector(Num_Actions,
vector< vector<SkeletonSequence> >( K_Fold));
ResultSet *resBehaviours;
PreparedStatement *prep_stmt;
for(int idAction=0;idAction<Num_Actions;idAction++){
vector<SkeletonSequence> result;
prep_stmt = con -> prepareStatement("SELECT id, user FROM `Behaviour` "
"WHERE name=? ");
//begin get the resultset
// prep_stmt->setInt(1, compressionRate);
// prep_stmt->setInt(2, numClusters);
prep_stmt->setString(1, listActions[idAction]);
resBehaviours = prep_stmt -> executeQuery();
/*For each action we get the ids of the behaviours*/
while (resBehaviours->next()) {
SkeletonSequence beh;
beh.idAction=idAction;
beh.idBehaviour=resBehaviours->getInt("id");
beh.idUser=resBehaviours->getInt("user");
addSkeletons(con, &beh);
result.push_back(beh);
}
//split train and validation
float trainRate=result.size()*((float)TrainingRate/100);
int validRate=result.size()- (int)(trainRate);
for(int j=0;j<validRate;j++){
int k = rand()%result.size();
vector<SkeletonSequence>::iterator it=result.begin();
it+=k;
validationData->push_back(result[k]);
result.erase(it);
}
//shuffle array
int n = result.size();
while (n > 1) {
// 0 <= k < n.
int k = rand()%n;
// n is now the last pertinent index;
n--;
// swap array[n] with array[k]
SkeletonSequence temp = result[n];
result[n] = result[k];
result[k] = temp;
}
int k=0;
for(int i=0;i<result.size();i++){
kFoldsVector[idAction][k%K_Fold].push_back(result[i]);
k++;
}
resBehaviours->close();
prep_stmt->clearParameters();
}
delete resBehaviours;
delete prep_stmt;
return kFoldsVector;
}
vector<vector< vector<BehaviourSequence> > > getKFoldsVector(Connection *con, list<BehaviourSequence> *validationData){
vector<vector< vector<BehaviourSequence> > > kFoldsVector(Num_Actions,
vector< vector<BehaviourSequence> >( K_Fold));
ResultSet *resBehaviours;
PreparedStatement *prep_stmt;
for(int idAction=0;idAction<Num_Actions;idAction++){
vector<BehaviourSequence> result;
prep_stmt = con -> prepareStatement("SELECT b.id, b.user, bc.sequence FROM `Behaviour` b, `BehaviourClustered` bc "
"WHERE `compression_rate`=? AND `num_clusters`=? AND b.id=bc.id AND b.name=?");// AND b.user=?");
//begin get the resultset
prep_stmt->setInt(1, compressionRate);
prep_stmt->setInt(2, numClusters);
prep_stmt->setString(3, listActions[idAction]);
// prep_stmt->setInt(4, actualIdUser);
resBehaviours = prep_stmt -> executeQuery();
/*For each action we get the ids of the behaviours*/
while (resBehaviours->next()) {
BehaviourSequence beh;
beh.idAction=idAction;
beh.idBehaviour=resBehaviours->getInt("id");
beh.idUser=resBehaviours->getInt("user");
beh.compressionRate=compressionRate;
// beh.numClusters=numClusters;
beh.sequence=getSequence(resBehaviours->getString("sequence"));
addSkeletonsFromIdBehaviour(con,beh.idBehaviour, &(beh.skeletons));
setIdCluster2Skeletons(&beh);
//we add it to the result list
result.push_back(beh);
}
//split train and validation
float trainRate=result.size()*((float)TrainingRate/100);
int validRate=result.size()-abs(trainRate);
for(int j=0;j<validRate;j++){
int k = rand()%result.size();
vector<BehaviourSequence>::iterator it=result.begin();
it+=k;
validationData->push_back(result[k]);
result.erase(it);
}
//shuffle array
int n = result.size();
while (n > 1) {
// 0 <= k < n.
int k = rand()%n;
// n is now the last pertinent index;
n--;
// swap array[n] with array[k]
BehaviourSequence temp = result[n];
result[n] = result[k];
result[k] = temp;
}
int k=0;
for(int i=0;i<result.size();i++){
kFoldsVector[idAction][k%K_Fold].push_back(result[i]);
k++;
}
resBehaviours->close();
prep_stmt->clearParameters();
}
delete resBehaviours;
delete prep_stmt;
return kFoldsVector;
}