private void threadexec(object obj)
{
IDBTask task = (IDBTask)obj;
task.call();
((BasicDBTask)task).Finish();
}
public void execute(IDBTask task)
{
if (conns.Count == 0)
{
throw new Exception("Empty DBConnection pool, task execute failed.");
}
task.setDBConnection(conns[0]);
task.call();
}
public int append(ITable table)
{
if (cols != table.columns())
{
throw new Exception("The input table doesn't match the schema of the target table.");
}
for (int i = 0; i < cols; ++i)
{
IVector curCol = table.getColumn(i);
checkColumnType(i, curCol.getDataCategory(), curCol.getDataType());
}
for (int i = 0; i < threadCount; ++i)
{
chunkIndices[i].Clear();
}
List <int> keys = domain.getPartitionKeys(table.getColumn(partitionColumnIdx));
int rows = keys.Count;
for (int i = 0; i < rows; ++i)
{
int key = keys[i];
if (key >= 0)
{
chunkIndices[key % threadCount].Add(i);
}
}
List <IDBTask> tasks = new List <IDBTask>(threadCount);
for (int i = 0; i < threadCount; ++i)
{
List <int> chunk = chunkIndices[i];
if (chunk.Count == 0)
{
continue;
}
int count = chunk.Count;
int[] array = new int[count];
for (int j = 0; j < count; ++j)
{
array[j] = chunk[j];
}
ITable subTable = table.getSubTable(array);
List <IEntity> args = new List <IEntity>(1);
args.Add(subTable);
tasks.Add(new BasicDBTask(appendScript, args));
}
pool.execute(tasks);
int affected = 0;
for (int i = 0; i < tasks.Count; ++i)
{
IDBTask task = tasks[i];
if (task.isSuccessful())
{
IEntity re = task.getResults();
if (re.getDataType() == DATA_TYPE.DT_VOID)
{
affected = 0;
}
else
{
affected += ((BasicInt)task.getResults()).getValue();
}
}
}
return(affected);
}