ProtobufUtil.java 文件源码-java代码片段

ProtobufUtil.java 文件源码

java

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项目：ditb 作者:

/**
 * Convert a ListMultimap&lt;String, TablePermission&gt; 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();
}