Java Code Examples for org.apache.hadoop.hbase.util.Bytes#BYTES_RAWCOMPARATOR
The following examples show how to use
org.apache.hadoop.hbase.util.Bytes#BYTES_RAWCOMPARATOR .
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Example 1
Source File: PermissionStorage.java From hbase with Apache License 2.0 | 5 votes |
/** * Load all permissions from the region server holding {@code _acl_}, * primarily intended for testing purposes. */ static Map<byte[], ListMultimap<String, UserPermission>> loadAll( Configuration conf) throws IOException { Map<byte[], ListMultimap<String, UserPermission>> allPerms = new TreeMap<>(Bytes.BYTES_RAWCOMPARATOR); // do a full scan of _acl_, filtering on only first table region rows Scan scan = new Scan(); scan.addFamily(ACL_LIST_FAMILY); ResultScanner scanner = null; // TODO: Pass in a Connection rather than create one each time. try (Connection connection = ConnectionFactory.createConnection(conf)) { try (Table table = connection.getTable(ACL_TABLE_NAME)) { scanner = table.getScanner(scan); try { for (Result row : scanner) { ListMultimap<String, UserPermission> resultPerms = parsePermissions(row.getRow(), row, null, null, null, false); allPerms.put(row.getRow(), resultPerms); } } finally { if (scanner != null) { scanner.close(); } } } } return allPerms; }
Example 2
Source File: AccessController.java From hbase with Apache License 2.0 | 5 votes |
/** * Writes all table ACLs for the tables in the given Map up into ZooKeeper * znodes. This is called to synchronize ACL changes following {@code _acl_} * table updates. */ private void updateACL(RegionCoprocessorEnvironment e, final Map<byte[], List<Cell>> familyMap) { Set<byte[]> entries = new TreeSet<>(Bytes.BYTES_RAWCOMPARATOR); for (Map.Entry<byte[], List<Cell>> f : familyMap.entrySet()) { List<Cell> cells = f.getValue(); for (Cell cell: cells) { if (CellUtil.matchingFamily(cell, PermissionStorage.ACL_LIST_FAMILY)) { entries.add(CellUtil.cloneRow(cell)); } } } Configuration conf = regionEnv.getConfiguration(); byte [] currentEntry = null; // TODO: Here we are already on the ACL region. (And it is single // region) We can even just get the region from the env and do get // directly. The short circuit connection would avoid the RPC overhead // so no socket communication, req write/read .. But we have the PB // to and fro conversion overhead. get req is converted to PB req // and results are converted to PB results 1st and then to POJOs // again. We could have avoided such at least in ACL table context.. try (Table t = e.getConnection().getTable(PermissionStorage.ACL_TABLE_NAME)) { for (byte[] entry : entries) { currentEntry = entry; ListMultimap<String, UserPermission> perms = PermissionStorage.getPermissions(conf, entry, t, null, null, null, false); byte[] serialized = PermissionStorage.writePermissionsAsBytes(perms, conf); zkPermissionWatcher.writeToZookeeper(entry, serialized); } } catch(IOException ex) { LOG.error("Failed updating permissions mirror for '" + (currentEntry == null? "null": Bytes.toString(currentEntry)) + "'", ex); } }
Example 3
Source File: RSRpcServices.java From hbase with Apache License 2.0 | 5 votes |
@Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetStoreFileResponse getStoreFile(final RpcController controller, final GetStoreFileRequest request) throws ServiceException { try { checkOpen(); HRegion region = getRegion(request.getRegion()); requestCount.increment(); Set<byte[]> columnFamilies; if (request.getFamilyCount() == 0) { columnFamilies = region.getTableDescriptor().getColumnFamilyNames(); } else { columnFamilies = new TreeSet<>(Bytes.BYTES_RAWCOMPARATOR); for (ByteString cf: request.getFamilyList()) { columnFamilies.add(cf.toByteArray()); } } int nCF = columnFamilies.size(); List<String> fileList = region.getStoreFileList( columnFamilies.toArray(new byte[nCF][])); GetStoreFileResponse.Builder builder = GetStoreFileResponse.newBuilder(); builder.addAllStoreFile(fileList); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } }
Example 4
Source File: TableDescriptorBuilder.java From hbase with Apache License 2.0 | 5 votes |
/** * Sets replication scope all & only the columns already in the builder. Columns added later won't * be backfilled with replication scope. * @param scope replication scope * @return a TableDescriptorBuilder */ public TableDescriptorBuilder setReplicationScope(int scope) { Map<byte[], ColumnFamilyDescriptor> newFamilies = new TreeMap<>(Bytes.BYTES_RAWCOMPARATOR); newFamilies.putAll(desc.families); newFamilies .forEach((cf, cfDesc) -> { desc.removeColumnFamily(cf); desc.setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(cfDesc).setScope(scope) .build()); }); return this; }
Example 5
Source File: PermissionStorage.java From hbase with Apache License 2.0 | 4 votes |
/** * Loads all of the permission grants stored in a region of the {@code _acl_} * table. * * @param aclRegion the acl region * @return a map of the permissions for this table. * @throws IOException if an error occurs */ static Map<byte[], ListMultimap<String, UserPermission>> loadAll(Region aclRegion) throws IOException { if (!isAclRegion(aclRegion)) { throw new IOException("Can only load permissions from "+ACL_TABLE_NAME); } Map<byte[], ListMultimap<String, UserPermission>> allPerms = new TreeMap<>(Bytes.BYTES_RAWCOMPARATOR); // do a full scan of _acl_ table Scan scan = new Scan(); scan.addFamily(ACL_LIST_FAMILY); InternalScanner iScanner = null; try { iScanner = aclRegion.getScanner(scan); while (true) { List<Cell> row = new ArrayList<>(); boolean hasNext = iScanner.next(row); ListMultimap<String, UserPermission> perms = ArrayListMultimap.create(); byte[] entry = null; for (Cell kv : row) { if (entry == null) { entry = CellUtil.cloneRow(kv); } Pair<String, Permission> permissionsOfUserOnTable = parsePermissionRecord(entry, kv, null, null, false, null); if (permissionsOfUserOnTable != null) { String username = permissionsOfUserOnTable.getFirst(); Permission permission = permissionsOfUserOnTable.getSecond(); perms.put(username, new UserPermission(username, permission)); } } if (entry != null) { allPerms.put(entry, perms); } if (!hasNext) { break; } } } finally { if (iScanner != null) { iScanner.close(); } } return allPerms; }