private static <M extends Map<Key, V>, V> M transposeMapHelp(Map<Key, V> orig, M neww) { for (Map.Entry<Key, V> entry : orig.entrySet()) { Key k0 = entry.getKey(); Key k = new Key( k0.getColumnQualifier(), k0.getColumnFamily(), k0.getRow(), k0.getColumnVisibilityParsed(), k0.getTimestamp()); neww.put(k, entry.getValue()); } return neww; }
/** Write entries to a table. */ public static void writeEntries( Connector connector, Map<Key, Value> map, String table, boolean createIfNotExist) { if (createIfNotExist && !connector.tableOperations().exists(table)) try { connector.tableOperations().create(table); } catch (AccumuloException | AccumuloSecurityException e) { log.error("trouble creating " + table, e); throw new RuntimeException(e); } catch (TableExistsException e) { log.error("crazy", e); throw new RuntimeException(e); } BatchWriterConfig bwc = new BatchWriterConfig(); BatchWriter bw; try { bw = connector.createBatchWriter(table, bwc); } catch (TableNotFoundException e) { log.error("tried to write to a non-existant table " + table, e); throw new RuntimeException(e); } try { for (Map.Entry<Key, Value> entry : map.entrySet()) { Key k = entry.getKey(); ByteSequence rowData = k.getRowData(), cfData = k.getColumnFamilyData(), cqData = k.getColumnQualifierData(); Mutation m = new Mutation(rowData.getBackingArray(), rowData.offset(), rowData.length()); m.put( cfData.getBackingArray(), cqData.getBackingArray(), k.getColumnVisibilityParsed(), entry.getValue().get()); bw.addMutation(m); } } catch (MutationsRejectedException e) { log.error("mutations rejected", e); throw new RuntimeException(e); } finally { try { bw.close(); } catch (MutationsRejectedException e) { log.error("mutations rejected while trying to close BatchWriter", e); } } }