int[] writeTableToDataFile(Table table) throws IOException {
Session session = database.getSessionManager().getSysSession();
PersistentStore store = session.sessionData.getRowStore(table);
RowOutputInterface rowOut = new RowOutputBinary(1024, scale);
DoubleIntIndex pointerLookup =
new DoubleIntIndex(table.getPrimaryIndex().sizeEstimate(store), false);
int[] rootsArray = table.getIndexRootsArray();
long pos = fileOffset;
int count = 0;
pointerLookup.setKeysSearchTarget();
Error.printSystemOut("lookup begins: " + stopw.elapsedTime());
RowIterator it = table.rowIterator(session);
for (; it.hasNext(); count++) {
CachedObject row = it.getNextRow();
pointerLookup.addUnsorted(row.getPos(), (int) (pos / scale));
if (count % 50000 == 0) {
Error.printSystemOut("pointer pair for row " + count + " " + row.getPos() + " " + pos);
}
pos += row.getStorageSize();
}
Error.printSystemOut(table.getName().name + " list done: " + stopw.elapsedTime());
count = 0;
it = table.rowIterator(session);
for (; it.hasNext(); count++) {
CachedObject row = it.getNextRow();
rowOut.reset();
row.write(rowOut, pointerLookup);
fileStreamOut.write(rowOut.getOutputStream().getBuffer(), 0, rowOut.size());
fileOffset += row.getStorageSize();
if ((count) % 50000 == 0) {
Error.printSystemOut(count + " rows " + stopw.elapsedTime());
}
}
for (int i = 0; i < rootsArray.length; i++) {
if (rootsArray[i] == -1) {
continue;
}
int lookupIndex = pointerLookup.findFirstEqualKeyIndex(rootsArray[i]);
if (lookupIndex == -1) {
throw Error.error(ErrorCode.DATA_FILE_ERROR);
}
rootsArray[i] = pointerLookup.getValue(lookupIndex);
}
setTransactionRowLookups(pointerLookup);
Error.printSystemOut(table.getName().name + " : table converted");
return rootsArray;
}