private void doInsert(int consistency_level, RowMutation rm) throws UnavailableException {
if (consistency_level != ConsistencyLevel.ZERO) {
StorageProxy.insertBlocking(rm, consistency_level);
} else {
StorageProxy.insert(rm);
}
}
protected ColumnFamily readColumnFamily(ReadCommand command, int consistency_level)
throws InvalidRequestException {
String cfName = command.getColumnFamilyName();
ThriftValidation.validateKey(command.key);
if (consistency_level == ConsistencyLevel.ZERO) {
throw new InvalidRequestException(
"Consistency level zero may not be applied to read operations");
}
if (consistency_level == ConsistencyLevel.ALL) {
throw new InvalidRequestException(
"Consistency level all is not yet supported on read operations");
}
Row row;
try {
row = StorageProxy.readProtocol(command, consistency_level);
} catch (IOException e) {
throw new RuntimeException(e);
} catch (TimeoutException e) {
throw new RuntimeException(e);
}
if (row == null) {
return null;
}
return row.getColumnFamily(cfName);
}
protected List<Row> queryNextPage(
int pageSize, ConsistencyLevel consistencyLevel, boolean localQuery)
throws RequestExecutionException {
AbstractRangeCommand pageCmd = command.withUpdatedLimit(pageSize);
if (lastReturnedKey != null)
pageCmd = pageCmd.forSubRange(makeExcludingKeyBounds(lastReturnedKey));
return localQuery
? pageCmd.executeLocally()
: StorageProxy.getRangeSlice(pageCmd, consistencyLevel);
}
public List<String> get_key_range(
String tablename, String columnFamily, String startWith, String stopAt, int maxResults)
throws InvalidRequestException, TException {
if (logger.isDebugEnabled()) logger.debug("get_key_range");
ThriftValidation.validateCommand(tablename, columnFamily);
if (!(StorageService.getPartitioner() instanceof OrderPreservingPartitioner)) {
throw new InvalidRequestException(
"range queries may only be performed against an order-preserving partitioner");
}
if (maxResults <= 0) {
throw new InvalidRequestException("maxResults must be positive");
}
try {
return StorageProxy.getKeyRange(
new RangeCommand(tablename, columnFamily, startWith, stopAt, maxResults));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
