- Common ways to obtain Scanner
private void myMethod () {Scanner s =
Connector connector;String tableName;Authorizations authorizations;connector.createScanner(tableName, authorizations)
- Smart code suggestions by Tabnine
}
private Iterator<Entry<Key,Value>> getIter2() { if (iter2 == null) { try { if ((table == null || !isMeta(table)) && iter1Count == 0) { Scanner scanner = context.createScanner(MetadataTable.NAME, Authorizations.EMPTY); scanner.setTimeout(3, TimeUnit.SECONDS); if (table == null) { scanner.setRange(new Range(new Text("~err_"), false, new Text("~err`"), false)); } else { scanner.setRange(new Range(new Text("~err_" + table))); } iter2 = scanner.iterator(); } else { Map<Key,Value> m = Collections.emptyMap(); iter2 = m.entrySet().iterator(); } } catch (Exception e) { throw new RuntimeException(e); } } return iter2; }
private Iterator<Entry<Key,Value>> newIterator(Range r) { synchronized (scanner) { scanner.enableIsolation(); scanner.setBatchSize(batchSize); scanner.setTimeout(timeout, TimeUnit.MILLISECONDS); scanner.setRange(r); scanner.setReadaheadThreshold(readaheadThreshold); setOptions((ScannerOptions) scanner, opts); return scanner.iterator(); // return new FaultyIterator(scanner.iterator()); } }
@Override public Iterator<Entry<Key,Value>> iterator() { smi.scanner.setBatchSize(size); smi.scanner.setTimeout(timeOut, TimeUnit.MILLISECONDS); smi.scanner.setBatchTimeout(batchTimeOut, TimeUnit.MILLISECONDS); smi.scanner.setReadaheadThreshold(readaheadThreshold);
scanner.setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS);
@Override public int execute(final String fullCommand, final CommandLine cl, final Shell shellState) throws Exception { final String tableName = OptUtil.getTableOpt(cl, shellState); final ScanInterpreter interpeter = getInterpreter(cl, tableName, shellState); // handle first argument, if present, the authorizations list to // scan with final Authorizations auths = getAuths(cl, shellState); final Scanner scanner = shellState.getAccumuloClient().createScanner(tableName, auths); scanner.addScanIterator( new IteratorSetting(Integer.MAX_VALUE, "NOVALUE", SortedKeyIterator.class)); // handle session-specific scan iterators addScanIterators(shellState, cl, scanner, tableName); // handle remaining optional arguments scanner.setRange(getRange(cl, interpeter)); scanner.setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS); // handle columns fetchColumns(cl, scanner, interpeter); // output / delete the records final BatchWriter writer = shellState.getAccumuloClient().createBatchWriter(tableName, new BatchWriterConfig().setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS)); FormatterConfig config = new FormatterConfig(); config.setPrintTimestamps(cl.hasOption(timestampOpt.getOpt())); shellState.printLines( new DeleterFormatter(writer, scanner, config, shellState, cl.hasOption(forceOpt.getOpt())), false); return 0; }
private Iterator<Entry<Key,Value>> getIter2() { if (iter2 == null) { try { if ((table == null || !isMeta(table)) && iter1Count == 0) { Connector connector = context.getConnector(); Scanner scanner = connector.createScanner(MetadataTable.NAME, Authorizations.EMPTY); scanner.setTimeout(3, TimeUnit.SECONDS); if (table == null) { scanner.setRange(new Range(new Text("~err_"), false, new Text("~err`"), false)); } else { scanner.setRange(new Range(new Text("~err_" + table))); } iter2 = scanner.iterator(); } else { Map<Key,Value> m = Collections.emptyMap(); iter2 = m.entrySet().iterator(); } } catch (Exception e) { throw new RuntimeException(e); } } return iter2; }
private Iterator<Entry<Key,Value>> getIter2() { if (iter2 == null) { try { if ((table == null || !table.equals(Constants.METADATA_TABLE_ID)) && iter1Count == 0) { Connector connector = HdfsZooInstance.getInstance().getConnector(SecurityConstants.getSystemPrincipal(), SecurityConstants.getSystemToken()); Scanner scanner = connector.createScanner(Constants.METADATA_TABLE_NAME, Constants.NO_AUTHS); scanner.setTimeout(3, TimeUnit.SECONDS); if (table == null) { scanner.setRange(new Range(new Text("~err_"), false, new Text("~err`"), false)); } else { scanner.setRange(new Range(new Text("~err_" + table))); } iter2 = scanner.iterator(); } else { Map<Key,Value> m = Collections.emptyMap(); iter2 = m.entrySet().iterator(); } } catch (Exception e) { throw new RuntimeException(e); } } return iter2; }
private Iterator<Entry<Key,Value>> newIterator(Range r) { synchronized (scanner) { scanner.enableIsolation(); scanner.setBatchSize(batchSize); scanner.setTimeout(timeout, TimeUnit.MILLISECONDS); scanner.setRange(r); scanner.setReadaheadThreshold(readaheadThreshold); setOptions((ScannerOptions) scanner, opts); return scanner.iterator(); // return new FaultyIterator(scanner.iterator()); } }
@Override public Iterator<Entry<Key,Value>> iterator() { smi.scanner.setBatchSize(size); smi.scanner.setTimeout(timeOut, TimeUnit.MILLISECONDS); smi.scanner.setBatchTimeout(batchTimeOut, TimeUnit.MILLISECONDS); smi.scanner.setReadaheadThreshold(readaheadThreshold);
scanner.setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS);
@Override public int execute(final String fullCommand, final CommandLine cl, final Shell shellState) throws Exception { final String tableName = OptUtil.getTableOpt(cl, shellState); final ScanInterpreter interpeter = getInterpreter(cl, tableName, shellState); // handle first argument, if present, the authorizations list to // scan with final Authorizations auths = getAuths(cl, shellState); final Scanner scanner = shellState.getConnector().createScanner(tableName, auths); scanner.addScanIterator( new IteratorSetting(Integer.MAX_VALUE, "NOVALUE", SortedKeyIterator.class)); // handle session-specific scan iterators addScanIterators(shellState, cl, scanner, tableName); // handle remaining optional arguments scanner.setRange(getRange(cl, interpeter)); scanner.setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS); // handle columns fetchColumns(cl, scanner, interpeter); // output / delete the records final BatchWriter writer = shellState.getConnector().createBatchWriter(tableName, new BatchWriterConfig().setTimeout(getTimeout(cl), TimeUnit.MILLISECONDS)); FormatterConfig config = new FormatterConfig(); config.setPrintTimestamps(cl.hasOption(timestampOpt.getOpt())); shellState.printLines( new DeleterFormatter(writer, scanner, config, shellState, cl.hasOption(forceOpt.getOpt())), false); return 0; }