SISTEMA MULTI-AGENTE COMPOSTO POR VÁRIOS AGENTES QUE COMUNICAM ATRAVÉS DUMA CENTRAL Exemplo de Resolução

Transcription

1 SISTEMA MULTI-AGENTE COMPOSTO POR VÁRIOS AGENTES QUE COMUNICAM ATRAVÉS DUMA CENTRAL Exemplo de Resolução % %% ======== switchboard_demo ========= % % load the tcp library and the agent toolkit files, % start the tcp software and the agent toolkit :- ensure_loaded library'\agent\agload', agent_load_files. :- ensure_loaded library'\agent\agutil' %for trace mode %:- ensure_loaded systemagutil %for trace mode - v.3240 :- ensure_loaded library'\tcp\txtwin' %dialog utils %:- ensure_loaded systemtxtwin %dialog utils - v.3240 % start the switchboard agent that opens connections with all the agents % present in the environment :- initialization go. :- dynamic broadcastfailed/1. go :- agent_reset, switch_initializeparams, EventHandlers, agent_create Params, Me, agent_initialize, agent_declare handlers, EventHandlers, init_window, agent_post_event switch_start, _, agutil_trace0.1 % agent_start. % initialize the test agent switch_initialize Params, Handlers :- Params = [nameswitchboard, port3000], Handlers = [incoming_msg, cannot_send, cannot_connect, switch_event_handler, switch_event_handler, switch_event_handler,

2 connection_accepted, switch_comms, connection_closed, switch_event_handler, send_msg, switch_event_handler, switch_start, switch_start_handler, switch_stop, switch_stop_handler ]. init_window :- switch_dlg, window_handlerswitch, switch_win_handler switch_dlg :- _S1 = [ws_sysmenu,ws_caption, dlg_ownedbydesktop,ws_thickframe, ws_minimizebox,ws_popup], _S2 = [ws_child,ws_visible,ss_right], _S3 = [ws_child,ws_visible,ss_left], _S4 = [ ws_child, ws_visible, ws_tabstop, ws_border, es_left ], _S5 = [ ws_child,ws_visible, ws_tabstop,ws_border, es_left ], _S6 = [ws_child,ws_visible,ws_tabstop, bs_pushbutton ], _S7 = [ws_child,ws_visible, ws_tabstop,ws_border, es_left,es_readonly], _S8 = [ws_child,ws_visible, ws_tabstop,ws_border, es_left,es_multiline, ws_hscroll,ws_vscroll ], _S9 = [ws_child,ws_visible,ws_tabstop,ws_border,es_left], wcreate switch,dialog,`switchboard`,620, 20, 400, 250, 16'80cb0000, wccreate switch,4, edit, ``, 10, 10, 330, 20, _S7, wccreate switch,1, edit, ``, 10, 40, 375, 175, _S8, show_dialogswitch, wfocusswitch, true. switch_win_handlerswitch, 'msg_close', Data, Result:- agent_post_event urgent, switch_stop, _, wcloseswitch true % ---- switch event handlers ---- switch_start_handler switch_start, _ :- switch_introduce, retractallagent_presented_,_,_ true

3 switch_stop_handler switch_stop, Params :- write '~M~JStopping..', ttyflush, agent_post_event agent_stop, _ switch_event_handler incoming_msg, MesNo,Channel :- one agent_incoming MesNo, Channel, Msg, _, writewswitch, `~M~JMsg No`:MesNo - `Message`:Msg, ttyflush, retractall agent_incomingmesno,_,_,_, agutil_msg2term Msg, Term, E, msg_handlerterm, Channel switch_event_handler send_msg, Channel, Msg :- writewswitch, `~M~JSending..`, ttyflush, agent_send Channel, Msg, writewswitch, `~M~JSent!`, ttyflush. switch_event_handler connection_closed, Channel :- nl, write `CONNECTION LOST on Channel`: Channel ~> Msg, writew switch, Msg, agent_presentedname,_,channel, nl, write `Agent`: Name, tab1, write`is gone!` ~> Msg1, writew switch, Msg1, retractagent_presentedname,_,channel switch_introduce:- agent_id_det ID, namen, protocolproto, hosth, portp, targettarget, urlu, full_namef, datafile, nl, tab3, write'introducing switch:', nl, nl, tab5, write 'ID ': ID, nl, tab5, write 'Name ': N, nl, tab5, write 'Protocol ': Proto, nl, tab5, write 'Host ': H, nl, tab5, write 'Port ': P, nl, tab5, write 'Target ': Target, nl, tab5, write 'URL ': U, nl, tab5, write 'Full Name ': F, nl, tab5, write 'Data File ': File, nl ~> Msg, writew switch, Msg % message handlers

4 msg_handlermsgmsgmsg,destino, Channel :- testedestino, Msg, Channel testedestino, Msg, Channel :- write`received ` : Msg, write` for agent ` : Destino, write`on Channel`:Channel ~> Msg_string, wtextswitch, 4, Msg_string, agent_presented_,destino,c, write`retrieved Agent_registered`: Destino, write` - `: C, write`~m~j` ~> Str, writewswitch, Str, agent_presented_,origem,channel, write`msgfrom`, writeorigem, write`,`, writemsg, write`` ~> Msg1, agent_post_eventsend_msg, C, Msg1, writewswitch, Msg1 nl, writewswitch,`destino desconhecido ou agente não registado`, agent_post_eventsend_msg, Channel, `Destino errado ou agente não registado` % -- detecta se a msg está a ser enviada a um agente nao registado. msg_handlermsgpresentname, Port, Channel :- write`agent `, writename, write` on port`, writeport, write` presented through Channel`, writechannel ~> Msg_string, wtextswitch, 4, Msg_string, assertagent_presentedname,port,channel, writewswitch, Name, writewswitch, Port, writewswitch,channel, ttyflush. msg_handlermsgbroadcastmsg, Destino, Channel :- broadcastmsg, Destino, Channel msg_handlermsg,_ :- write`received general msg `, writemsg ~> Msg_string, wtextswitch, 4, Msg_string broadcastmsg, Termo, Channel :- listtermo, splitlisttermo, Msg Termo = all, forallagent_presentedn,p,c, C \= Channel,

5 write`msgfrom`, agent_presented_,p1,channel, writep1, write`,`, writemsg, write`` ~> Msg1, agent_post_eventsend_msg, C, Msg1 true write`parâmetro desconhecido`, cleanbroadcastfacts, write`received msg to broadcast: `, writemsg ~> Str, wtextswitch, 4, Str splitlist[],_ splitlistlist, Msg :- List = [N Rest], agent_presented_,n,ch, agent_post_eventsend_msg, Ch, Msg assertbroadcastfailedn, splitlistrest, Msg cleanbroadcastfacts :- broadcastfailed_, retractallbroadcastfailed_ true

6 % %% ========= agente1_demo ========== % /* +Host +Port */ : The name of the computer where the agent/program is running. atom or string : The port number of the program/agent to connect to. integer % load the tcp library and the agent toolkit files, % start the tcp software and the agent toolkit :- ensure_loadedlibrary'\agent\agload', agent_load_files. :- ensure_loaded library'\agent\agutil' :- ensure_loaded library'\tcp\txtwin' %dialog utils go :- agent_reset, agente1_initialize Params, EventHandlers, interface, agent_create Params, Me, agent_initialize, agent_declare handlers, EventHandlers, agutil_trace0.1 % agent_start. interface :- wcreatedia,dialog,`agente 1`,30,400,400,225,16'80c80000, wcreatedia,1,button,`call`,10,150,80,32,16' , wcreatedia,2,button,`&cancel`,210,150,80,32,16' , wcreatedia,3,button,`connect`,300,150,80,32,16' , wccreatedia,101,edit,``,10,10,380,30, [ws_child,ws_visible,ws_border,es_left], wccreatedia,100, static, ``, 10, 60, 380,20, [ws_child,ws_visible,ss_left,ws_border], wcreatedia,4,listbox,``,10,90,110,60,16'50a1000a, wcreatedia,7,button,`call All`,110,150,80,32,16' , fill_lstbox, window_handlerdia,dia_handler,

7 show_dialogdia fill_lstbox :- forall agente_,nome, Destino, writenome, write` - `, writedestino ~> Linha, wlbxadddia,4,-1,linha agente1_initialize Params, Handlers :- Params = [nameagente1, port1000], Handlers = [cannot_send, agente1_msg_handler, cannot_connect, agente1_msg_handler, connection_closed, agente1_msg_handler, send_msg, agente1_msg_handler, incoming_msg, agente1_msg_handler, connected, agente1_msg_handler, start, start_handler, stop, stop_handler ]. % handle 'start' event start_handler start, Host,Port :- write `~M~JConnecting..`, ttyflush, agent_connect Host, Port, Channel, write '~M~JConnected to agent at'- Host:Port, nl, ttyflush. % handle 'cannot_connect' event agente1_msg_handler cannot_connect, Host,Port,E :- write`~m~jcannot connect to `:Host:Port, write` because `, E == -1 -> write'the connection request timed out' write'of error':e, nl, ttyflush, wtext dia, 100, `Waiting 10 seconds...`, try_later10, Host, Port try_laterinterval, H, P :- tcp_now Now, Goal = try_againh,p, tcp_time_plus Now, Interval, Then, tcp_next_timer TimerID, tcp_create_timer_callback Then, Goal, TimerID try_againh,p :- wtext dia, 100, `Trying to connect...`, agent_post_event start, H,P % handle 'connection_closed' event agente1_msg_handler connection_closed, _ :- write`~m~jconnection closed` % send a message

8 agente1_msg_handler send_msg, Destino,Msg :- agent_connected_,channel,_, test1channel, Destino, Msg test1channel, Destino, Msg :- % write`msg`, writemsg, write`,`, % writedestino, write``~> Message, agent_send Channel, Msg % handle 'cannot_send' event agente1_msg_handler cannot_send, Channel :- write `~M~JCannot send message..`, fail. % handle 'incoming_msg' event agente1_msg_handler incoming_msg, MesNo,Channel :- one agent_incoming MesNo, Channel, Msg, _, write `Msg No`:MesNo - `Message`:Msg ~> MsgString, ttyflush, retractall agent_incomingmesno,_,_,_, wtextdia,100, MsgString % quando se confirma a ligação, efectuar a apresentação do agente agente1_msg_handler connected, X :- writewdia, `~M~JPresenting..`, ttyflush, agent_connected_,channel,_, agent_id_det_,namen,_,_,portp,_,_,_,_, agent_send Channel, msgpresentn,p % stop the agente1 agent stop_handler stop, Params :- write '~M~JStopping..', ttyflush, agent_post_event agent_stop, _ % Contacts agente1,agente2,1100 agente2,agente3,1200 agente3,agente4,1300 agente4,agente5,1400 listat[1,agente2,1100,2,agente3,1200,3,agente4,1300,4,agente5,1400] % dialog handlers dia_handler dia,1, msg_button, _, _ :- teststringx,!, X = 1, wtextdia, 100, `Sending message`, create_msgs true.

9 dia_handler dia,2, msg_button, _, cancel :- agent_post_event agent_stop, _ dia_handler dia,3, msg_button, _, _ :- wtextdia, 100, `Connecting`, agent_post_event start, `antonio-silva`,3000 dia_handler dia,7, msg_button, _, _ :- wtextdia,101,msg, Message = msgbroadcastmsg,all, agent_post_eventsend_msg,destino, Message dia_handler dia, msg_close, _, _ :- wclosedia create_msgs :- listatlt, test_lbxmlt, [], Lista, lengthlista, Len, Len = 0, wtextdia,100, `Nenhum destino seleccionado!` Len = 1, sendonelista sendmanylista % %% predicados de processamento das listas de destinos % teste_listboxpos :- listatlista, teste_lbxlista,pos teste_lbx[i Resto], Pos :- I = P,_,_, P1 is P - 1, wlbxsel dia,4, P1, S, S = 1 -> Pos is P teste_lbxresto, Pos testmtobsent, Res :- listatlista, test_lbxmlista, [], Res test_lbxm[],tobsent, Res:- Res = ToBsent. test_lbxm[i Rest], ToBsent, Res :- I = P,_,_, P1 is P - 1, wlbxsel dia,4, P1, S, S = 1, NewL = [P1 ToBsent]

10 NewL = ToBsent, test_lbxmrest,newl, Res sendonelista :- Lista = [Pos], Pos1 is Pos + 1, agentepos1, _, Destino, wtextdia,101, Msg, Message = msgmsgmsg,destino, agent_post_eventsend_msg,destino, Message sendmanylista :- wtextdia,101,msg, sendmanylista, [], List2Bsent, Message = msgbroadcastmsg,list2bsent, agent_post_eventsend_msg,destino, Message sendmany[], L, Lista :- Lista = L. sendmany[h T], L, Lista :- Pos is H + 1, agentepos, _, Destino, L1 = [Destino L], sendmanyt, L1, Lista % Validação do texto da mensagem teststringx :- wtextdia,101,str, Str = ``, wtextdia, 100,`--- Qual a mensagem a enviar? ---`, X = 0 X = 1 Novembro de 2003, António Silva