import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
/**
 * Convert a ListMultimap<String, TablePermission> where key is username
 * to a protobuf UserPermission
 *
 * @param perm the list of user and table permissions
 * @return the protobuf UserTablePermissions
 */
public static AccessControlProtos.UsersAndPermissions toUserTablePermissions(
    ListMultimap<String, TablePermission> perm) {
  AccessControlProtos.UsersAndPermissions.Builder builder =
                AccessControlProtos.UsersAndPermissions.newBuilder();
  for (Map.Entry<String, Collection<TablePermission>> entry : perm.asMap().entrySet()) {
    AccessControlProtos.UsersAndPermissions.UserPermissions.Builder userPermBuilder =
                AccessControlProtos.UsersAndPermissions.UserPermissions.newBuilder();
    userPermBuilder.setUser(ByteString.copyFromUtf8(entry.getKey()));
    for (TablePermission tablePerm: entry.getValue()) {
      userPermBuilder.addPermissions(toPermission(tablePerm));
    }
    builder.addUserPermissions(userPermBuilder.build());
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
/**
 * Convert a ListMultimap<String, TablePermission> where key is username
 * to a protobuf UserPermission
 *
 * @param perm the list of user and table permissions
 * @return the protobuf UserTablePermissions
 */
public static AccessControlProtos.UsersAndPermissions toUserTablePermissions(
    ListMultimap<String, TablePermission> perm) {
  AccessControlProtos.UsersAndPermissions.Builder builder =
                AccessControlProtos.UsersAndPermissions.newBuilder();
  for (Map.Entry<String, Collection<TablePermission>> entry : perm.asMap().entrySet()) {
    AccessControlProtos.UsersAndPermissions.UserPermissions.Builder userPermBuilder =
                AccessControlProtos.UsersAndPermissions.UserPermissions.newBuilder();
    userPermBuilder.setUser(ByteString.copyFromUtf8(entry.getKey()));
    for (TablePermission tablePerm: entry.getValue()) {
      userPermBuilder.addPermissions(toPermission(tablePerm));
    }
    builder.addUserPermissions(userPermBuilder.build());
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
/**
 * Convert a client Permission to a Permission proto
 *
 * @param perm the client Permission
 * @return the protobuf Permission
 */
public static AccessControlProtos.Permission toPermission(Permission perm) {
  AccessControlProtos.Permission.Builder builder = AccessControlProtos.Permission.newBuilder();
  if (perm instanceof TablePermission) {
    TablePermission tablePerm = (TablePermission)perm;
    if (tablePerm.hasTable()) {
      builder.setTable(ByteString.copyFrom(tablePerm.getTable()));
    }
    if (tablePerm.hasFamily()) {
      builder.setFamily(ByteString.copyFrom(tablePerm.getFamily()));
    }
    if (tablePerm.hasQualifier()) {
      builder.setQualifier(ByteString.copyFrom(tablePerm.getQualifier()));
    }
  }
  for (Permission.Action a : perm.getActions()) {
    builder.addAction(toPermissionAction(a));
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
/**
 * Convert a ListMultimap<String, TablePermission> where key is username
 * to a protobuf UserPermission
 *
 * @param perm the list of user and table permissions
 * @return the protobuf UserTablePermissions
 */
public static AccessControlProtos.UserTablePermissions toUserTablePermissions(
    ListMultimap<String, TablePermission> perm) {
  AccessControlProtos.UserTablePermissions.Builder builder =
                AccessControlProtos.UserTablePermissions.newBuilder();
  for (Map.Entry<String, Collection<TablePermission>> entry : perm.asMap().entrySet()) {
    AccessControlProtos.UserTablePermissions.UserPermissions.Builder userPermBuilder =
                AccessControlProtos.UserTablePermissions.UserPermissions.newBuilder();
    userPermBuilder.setUser(ByteString.copyFromUtf8(entry.getKey()));
    for (TablePermission tablePerm: entry.getValue()) {
      userPermBuilder.addPermissions(toPermission(tablePerm));
    }
    builder.addPermissions(userPermBuilder.build());
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
private static SnapshotDescription writeAclToSnapshotDescription(SnapshotDescription snapshot,
    Configuration conf) throws IOException {
  ListMultimap<String, TablePermission> perms =
      User.runAsLoginUser(new PrivilegedExceptionAction<ListMultimap<String, TablePermission>>() {
        @Override
        public ListMultimap<String, TablePermission> run() throws Exception {
          return AccessControlLists.getTablePermissions(conf,
            TableName.valueOf(snapshot.getTable()));
        }
      });
  return snapshot.toBuilder()
      .setUsersAndPermissions(ShadedAccessControlUtil.toUserTablePermissions(perms)).build();
}
 

import org.apache.hadoop.hbase.security.access.TablePermission; //导入依赖的package包/类
/**
 * Converts a Permission proto to a client TablePermission object.
 *
 * @param proto the protobuf Permission
 * @return the converted TablePermission
 */
public static TablePermission toTablePermission(AccessControlProtos.Permission proto) {
  List<Permission.Action> actions = toPermissionActions(proto.getActionList());

  byte[] qualifier = null;
  byte[] family = null;
  byte[] table = null;

  if (proto.hasTable()) table = proto.getTable().toByteArray();
  if (proto.hasFamily()) family = proto.getFamily().toByteArray();
  if (proto.hasQualifier()) qualifier = proto.getQualifier().toByteArray();

  return new TablePermission(table, family, qualifier,
      actions.toArray(new Permission.Action[actions.size()]));
}