sp_MSpeerapplytopologyinfo (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

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Definition:

sys.sp_MSpeerapplytopologyinfo(int @request_id
, nvarchar @originator
, nvarchar @originator_db
, nvarchar @response_srvr
, nvarchar @response_db
, xml @connection_info
, int @response_srvr_version
, int @response_originator_id
, int @response_conflict_retention)

MetaData:

 create procedure sys.sp_MSpeerapplytopologyinfo  
(  
    @request_id        int,  
    @originator        sysname,  
    @originator_db    sysname,  
    @response_srvr    sysname,  
    @response_db        sysname,  
    @connection_info    XML = NULL,  
    @response_srvr_version    int,  
    @response_originator_id int,  
    @response_conflict_retention int  
)  
as  
begin  
    set nocount on      
      
    declare @retcode int  
      
    --  security check for subscriber  
    exec @retcode = sys.sp_MSreplcheck_subscribe   
       if @@error <> 0 or @retcode <> 0   
       begin  
           return 1  
       end  
  
    --  we will exit in either of these conditions since this means we  
    --  are not at the correct node and we should treat this as a noop  
    --  the conditions are as follows:  
    --     1. Any of the user provided information is NULL  
    --     2. We are not on the originator server  
    --     3. (NOT USED) The originator and reponse_srvr are the same  
    --   
    --  section 1   
    if @request_id is NULL  
        or @originator is NULL  
        or @originator_db is NULL  
        or @response_srvr is NULL  
        or @response_db is NULL  
        --  section 2  
        or UPPER(@originator) <> UPPER(publishingservername())  
        or @originator_db <> db_name()  
        --  we do not need the 3rd condition since we want topology from the originator as well  
        -- --  section 3  
        -- or (UPPER(@originator) = UPPER(@response_srvr)  
        --     and @originator_db = @response_db)  
    begin  
        return 0  
    end  
      
    begin transaction tr_sp_MSpeerapplytopologyinfo  
    save transaction tr_sp_MSpeerapplytopologyinfo  
  
    if @response_originator_id = 0   
    begin  
        select @response_originator_id = NULL  
        select @response_conflict_retention = NULL  
    end  
      
    update MSpeer_topologyresponse  
        set received_date = getdate(),  
            connection_info = @connection_info,  
            peer_version = @response_srvr_version,  
            originator_id = @response_originator_id,  
            peer_conflict_retention = @response_conflict_retention  
        where request_id = @request_id  
            and peer = @response_srvr  
            and peer_db = @response_db  
    if @@error <> 0  
    begin  
        --  The procedure sys.MSpeer_topologyresponse failed to UPDATE the resource MSpeer_topologyresponse Server error =  0.  
        raiserror (21499, 16, -1, 'sys.sp_MSpeerapplytopologyinfo', 'UPDATE', 'MSpeer_topologyresponse.', @@error)  
        goto FAILURE  
    end  
  
    -- update the peer node version inside MSpeer_lsns  
    if @response_srvr_version is not null  
    begin  
        update MSpeer_lsns  
        set originator_version = @response_srvr_version  
        where originator = @response_srvr   
            and originator_db = @response_db  
            and originator_publication = (select  publication from MSpeer_topologyrequest where id = @request_id)  
            and originator_version <> @response_srvr_version  
    end  
      
    commit transaction tr_sp_MSpeerapplytopologyinfo  
  
    return 0  
FAILURE:  
    rollback transaction tr_sp_MSpeerapplytopologyinfo  
    commit transaction   
      
    return 1  
end