/**
* @param scan the scan specification
* @throws Exception
*/
public static ScannerModel fromScan(Scan scan) throws Exception {
ScannerModel model = new ScannerModel();
model.setStartRow(scan.getStartRow());
model.setEndRow(scan.getStopRow());
Map<byte[], NavigableSet<byte[]>> families = scan.getFamilyMap();
if (families != null) {
for (Map.Entry<byte[], NavigableSet<byte[]>> entry : families.entrySet()) {
if (entry.getValue() != null) {
for (byte[] qualifier : entry.getValue()) {
model.addColumn(Bytes.add(entry.getKey(), COLUMN_DIVIDER, qualifier));
}
} else {
model.addColumn(entry.getKey());
}
}
}
model.setStartTime(scan.getTimeRange().getMin());
model.setEndTime(scan.getTimeRange().getMax());
int caching = scan.getCaching();
if (caching > 0) {
model.setBatch(caching);
}
int maxVersions = scan.getMaxVersions();
if (maxVersions > 0) {
model.setMaxVersions(maxVersions);
}
Filter filter = scan.getFilter();
if (filter != null) {
model.setFilter(stringifyFilter(filter));
}
return model;
}
public synchronized ResultScanner getScanner(
final TransactionState transactionState, final Scan scan) throws IOException {
if (LOG.isTraceEnabled()) LOG.trace("Enter TransactionalTable.getScanner");
if (scan.getCaching() <= 0) {
scan.setCaching(getScannerCaching());
}
Long value = (long) 0;
TransactionalScanner scanner = new TransactionalScanner(this, transactionState, scan, value);
return scanner;
}
public TransactionalScanner(
final TransactionalTable ttable,
final TransactionState ts,
final Scan scan,
final Long scannerID) {
super();
this.scan = scan;
this.scannerID = scannerID;
this.ts = ts;
this.ttable = ttable;
this.nbRows = scan.getCaching();
if (nbRows <= 0) nbRows = 100;
try {
nextScanner(false);
} catch (IOException e) {
LOG.error("nextScanner error");
}
}