/** Constructor.
* @param algo The Algorithm_t to use
* @param da_result The result automaton
* @param limit Limit the number of states in the result automaton?
* @param detailed_states Generate detailed descriptions?
* @param stutter_information Information about which symbols may be stuttered
*/
public StutteredConvertor(SafraAlgorithm algo, DRA da_result, int limit, bool detailed_states, StutterSensitivenessInformation stutter_information)
{
_da_result = da_result;
_limit = limit;
_algo = algo;
_detailed_states = detailed_states;
_stutter_information = stutter_information;
//added by ly
_state_mapper = new StateMapper <TreeWithAcceptance, DA_State>();
_unprocessed = new Stack <KeyValuePair <TreeWithAcceptance, DA_State> >();
}
/**
* Perform the stuttered conversion.
* Throws LimitReachedException if a limit is set (>0) and
* there are more states in the generated DRA than the limit.
* @param algo the underlying algorithm to be used
* @param da_result the DRA where the result is stored
* (has to have same APSet as the nba)
* @param limit a limit for the number of states (0 disables the limit).
*/
public void convert(SafraAlgorithm algo, DA da_result, int limit)
{
StutteredConvertor conv = new StutteredConvertor(algo, da_result as DRA, limit, _detailed_states, _stutter_information);
conv.convert();
}
//=0
/**
* Convert the NBA to a DRA using Safra's algorithm
* @param nba the NBA
* @param dra_result the result DRA
* @param limit limit for the size of the DRA
*/
public void convert_safra(NBA nba, DRA dra_result, int limit)
{
SafraAlgorithm safras_algo = new SafraAlgorithm(nba, _options);
if (!_options.opt_rename)
{
NBA2DA nba2da = new NBA2DA(_detailed_states);
nba2da.convert(safras_algo, dra_result, limit);
}
else
{
//typedef typename SafrasAlgorithm<NBA_t>::result_t result_t;
//typedef typename SafrasAlgorithm<NBA_t>::state_t key_t;
//<safra_t,DRA_t, StateMapperFuzzy<result_t, key_t, typename DRA_t::state_type, SafraTreeCandidateMatcher> >
NBA2DA nba2da_fuzzy = new NBA2DA(_detailed_states);
nba2da_fuzzy.convert(safras_algo, dra_result, limit);
}
}
//=0
/**
* Convert the NBA to a DRA using Safra's algorithm, using stuttering
* @param nba the NBA
* @param dra_result the result DRA
* @param limit limit for the size of the DRA
*/
//template < typename NBA_t, typename DRA_t >
void convert_safra_stuttered(NBA nba, DRA dra_result, int limit)
{
SafraAlgorithm safras_algo = new SafraAlgorithm(nba, _options);
StutteredNBA2DA nba2dra_stuttered = new StutteredNBA2DA(_detailed_states, _stutter_information);
nba2dra_stuttered.convert(safras_algo, dra_result, limit);
}
/**
* Generate a DA using the Algorithm
* Throws LimitReachedException if a limit is set (>0) and
* there are more states in the generated DA than the limit.
* @param algo the algorithm
* @param da_result the DA where the result is stored
* (has to have same APSet as the nba)
* @param limit a limit for the number of states (0 disables the limit).
*/
public void convert(SafraAlgorithm algo, DRA da_result, int limit)
{
/** The hash map from DA_State to StateInterface */
StateMapper<StateInterface, DA_State> state_mapper = new StateMapper<StateInterface, DA_State>();
APSet ap_set = da_result.getAPSet();////////////************where dose this dra have ap_set?
if (algo.checkEmpty())
{
da_result.constructEmpty();
return;
}
//typedef typename DA_t::state_type da_state_t;
//typedef typename Algorithm_t::state_t algo_state_t;
//typedef typename Algorithm_t::result_t algo_result_t;
//* Creates new acceptance pairs according to da_result's acceptance.
algo.prepareAcceptance(da_result.acceptance());////*********don't understand well
StateInterface start = algo.getStartState();
DA_State start_state = da_result.newState();/////************?? what is in this newState?
start.generateAcceptance(start_state.acceptance());
if (_detailed_states)
{
start_state.setDescription(start.toHTML());
}
state_mapper.add(start, start_state);
da_result.setStartState(start_state);
//typedef std::pair<algo_state_t, da_state_t*> unprocessed_value;
Stack<KeyValuePair<StateInterface, DA_State>> unprocessed = new Stack<KeyValuePair<StateInterface, DA_State>>();
unprocessed.Push(new KeyValuePair<StateInterface, DA_State>(start, start_state));
while (unprocessed.Count > 0)
{
KeyValuePair<StateInterface, DA_State> top = unprocessed.Pop();
//unprocessed.pop();
StateInterface cur = top.Key;//safratreeNode
DA_State from = top.Value;//DA_state
//for (APSet::element_iterator it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)
for (int it_elem = ap_set.all_elements_begin(); it_elem != ap_set.all_elements_end(); ++it_elem)///from 0 to 2^ap_set.size
{
APElement elem = new APElement(it_elem);/////////set simpleBitset = it_elem
ResultStateInterface<SafraTree> result = algo.delta(cur as SafraTree, elem);/////get a new safraTree through elem
DA_State to = state_mapper.find(result.getState());
if (to == null)////////////////result is not in state mapper.
{
to = da_result.newState();
result.getState().generateAcceptance(to.acceptance());
if (_detailed_states)
{
to.setDescription(result.getState().toHTML());
}
state_mapper.add(result.getState(), to);
unprocessed.Push(new KeyValuePair<StateInterface, DA_State>(result.getState(), to));
}
from.edges().set(elem, to);//////////////add this edge.
if (limit != 0 && da_result.size() > limit)
{
throw new LimitReachedException("");
}
}
}
}
