private void flushBuffer(Data buff) {
buff.checkCapacity(1);
buff.writeByte((byte) 0);
buff.fillAligned();
buff.setInt(0, buff.length() / Constants.FILE_BLOCK_SIZE);
file.write(buff.getBytes(), 0, buff.length());
}
/**
* Change the parent page id.
*
* @param id the new parent page id
*/
void setParentPageId(int id) {
index.getPageStore().logUndo(this, data);
parentPageId = id;
if (written) {
changeCount = index.getPageStore().getChangeCount();
data.setInt(START_PARENT, parentPageId);
}
}
@Override
public int addRows(ArrayList<Value[]> rows) {
if (sort != null) {
sort.sort(rows);
}
Data buff = rowBuff;
long start = file.getFilePointer();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
int bufferLen = 0;
for (Value[] row : rows) {
buff.reset();
buff.writeInt(0);
for (int j = 0; j < columnCount; j++) {
Value v = row[j];
buff.checkCapacity(buff.getValueLen(v));
buff.writeValue(v);
}
buff.fillAligned();
int len = buff.length();
buff.setInt(0, len);
if (maxBufferSize > 0) {
buffer.write(buff.getBytes(), 0, len);
bufferLen += len;
if (bufferLen > maxBufferSize) {
byte[] data = buffer.toByteArray();
buffer.reset();
file.write(data, 0, data.length);
bufferLen = 0;
}
} else {
file.write(buff.getBytes(), 0, len);
}
}
if (bufferLen > 0) {
byte[] data = buffer.toByteArray();
file.write(data, 0, data.length);
}
if (sort != null) {
ResultDiskTape tape = new ResultDiskTape();
tape.start = start;
tape.end = file.getFilePointer();
tapes.add(tape);
} else {
mainTape.end = file.getFilePointer();
}
rowCount += rows.size();
return rowCount;
}