src/iooper.h

   1 /** @file */
   2 ////////////////////////////////////////////////////////////////////////////////////////
   3 //
   4 //    This file is part of Boost Statechart Viewer.
   5 //
   6 //    Boost Statechart Viewer is free software: you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation, either version 3 of the License, or
   9 //    (at your option) any later version.
  10 //
  11 //    Boost Statechart Viewer is distributed in the hope that it will be useful,
  12 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //    GNU General Public License for more details.
  15 //
  16 //    You should have received a copy of the GNU General Public License
  17 //    along with Boost Statechart Viewer.  If not, see <http://www.gnu.org/licenses/>.
  18 //
  19 ////////////////////////////////////////////////////////////////////////////////////////
  20
  21 #include <fstream>
  22 #include <list>
  23 #include <string>
  24
  25 #include "stringoper.h"
  26
  27 using namespace std;
  28
  29 /**
  30 * This class provides saving information about state machine to a specified output file. It saves states and transitions and also it creates the transition table.
  31 */
  32 class IO_operations
  33 {
  34         list<string> transitions; /** list of transitions */
  35         list<string> states; /** list of states */
  36         list<string> events; /** list of events */
  37         string outputFilename;
  38         string name_of_machine;
  39         string name_of_first_state;
  40         string *table; /** transition table. It is being allocated when starting the creation of output file. */
  41         int nState;
  42         int cols, rows;
  43         /** This function finds place in the transition table to put a transition there. */
  44         int find_place(string model, int type)
  45         {
  46                 if(type == 1)
  47                 {
  48                         for(int i = 3;i<cols;i++)
  49                         {
  50                                 if(model.compare(0,model.size(),table[i])==0) return i;
  51                         }
  52                 }
  53                 else
  54                 {
  55                         for(int i = 1;i<rows;i++)
  56                         if(model.compare(0,model.size(),table[i*cols+2])==0) return i;
  57                 }
  58                 return -1;
  59         }
  60         public:
  61         IO_operations() {} /** Implicit constructor */
  62         /** Constructor that fill in all private variables in this class */
  63         IO_operations( const string outputFile, const string FSM_name, const string firstState, const list<string> trans, const list<string> state, const list<string> ev )
  64         {
  65                 outputFilename = outputFile;
  66                 name_of_machine = FSM_name;
  67                 name_of_first_state = firstState;
  68                 transitions = trans;
  69                 states = state;
  70                 events = ev;
  71         }
  72
  73         ~IO_operations() /** destructor. It deallocates the transition table.*/
  74         {
  75                 delete [] table;
  76         }
  77
  78         void setEvents(list<string> events) /** Set list of events to an attribute */
  79         {
  80                 this->events = events;
  81         }
  82
  83         void setTransitions(list<string> transitions) /** Set list of transitions to an attribute */
  84         {
  85                 this->transitions = transitions;
  86         }
  87
  88         void setStates(list<string> states) /** Set list of states to an attribute */
  89         {
  90                 this->states = states;
  91         }
  92
  93         void setNameOfStateMachine(string name_of_FSM) /** Set name of FSM to an attribute */
  94         {
  95                 name_of_machine = name_of_FSM;
  96         }
  97
  98         void setNameOfFirstState(string first_state) /** Set name of start state to an attribute */
  99         {
 100                 name_of_first_state = first_state;
 101         }
 102
 103         void setOutputFilename(string outputFilename) /** Set name of an output file to an attribute */
 104         {
 105                 this->outputFilename = outputFilename;
 106         }
 107
 108         bool test_start(const string *sState, const string state, const int num)
 109         {
 110                 for(int i = 0; i<num;i++)
 111                 {
 112                         if (state.compare(0,sState[i].length(), sState[i])==0 && sState[i].length()==state.length()) return true;
 113                 }
 114                 return false;
 115         }
 116
 117         bool write_states(ofstream& filestr) /** This method write states to the output file and also to transition table. */
 118         {
 119                 int pos1, pos2, cnt, subs, num_start, orto = 0;
 120                 nState = 1;
 121                 string context, state, ctx, *sState, str;
 122                 list<string> nstates = states;
 123                 context = name_of_machine;
 124                 table[0] = "S";
 125                 table[1] = "Context";
 126                 table[2] = "State";
 127                 cnt = count(name_of_first_state,',');
 128                 sState = new string [cnt+1];
 129                 str = name_of_first_state;
 130                 if(cnt>0) str = get_params(str);
 131                 num_start = cnt+1;
 132                 for(int i = 0;i<=cnt;i++)
 133                 {
 134                         if(i == cnt) sState[i] = str;
 135                         else
 136                         {
 137                                 sState[i] = str.substr(0,str.find(','));
 138                                 str = str.substr(str.find(',')+1);
 139                         }
 140                 }
 141                 for(list<string>::iterator i = nstates.begin();i!=nstates.end();i++) // write all states in the context of the automaton
 142                 {
 143                         state = *i;
 144                         cnt = count(state,',');
 145                         if(count(state,'>')==1) //ortho states
 146                         {
 147                                 orto = 1;
 148                                 if(cnt>1)cnt = 2;
 149                         }
 150                         if(cnt==1)
 151                         {
 152                                 pos1 = state.find(",");
 153                                 if(orto == 1) ctx = cut_namespaces(cut_namespaces(state.substr(pos1+1),1));
 154                                 else ctx = cut_namespaces(state.substr(pos1+1));
 155                                 if(ctx.compare(0,context.length(),context)==0 && context.length()==ctx.length())
 156                                 {
 157                                         str = cut_namespaces(state.substr(0,pos1));
 158                                         if(test_start(sState,str,num_start))
 159                                         {
 160                                                 filestr<<str<<" [peripheries=2];\n";
 161                                                 table[cols*nState] = "*";
 162                                         }
 163                                         else filestr<<str<<"\n";
 164                                         table[cols*nState+2] = str;
 165                                         table[cols*nState+1] = context;
 166                                         nState+=1;
 167                                         nstates.erase(i);
 168                                         i--;
 169                                 }
 170                         }
 171                         if(cnt==2) //ORTHO OK
 172                         {
 173                                 pos1 = state.find(",");
 174                                 pos2 = state.substr(pos1+1).find(",")+pos1+1;
 175                                 ctx = cut_namespaces(state.substr(pos1+1,pos2-pos1-1));
 176                                 cout<<ctx<<endl;
 177                                 if(ctx.compare(0,context.length(),context)==0 && context.length()==ctx.length())
 178                                 {
 179                                         str = cut_namespaces(state.substr(0,pos1));
 180                                         if(test_start(sState,str,num_start))
 181                                         {
 182                                                 filestr<<str<<" [peripheries=2];\n";
 183                                                 table[cols*nState] = "*";
 184                                         }
 185                                         else filestr<<str<<"\n";
 186                                         table[cols*nState+2] = str;
 187                                         table[cols*nState+1] = context;
 188                                         nState+=1;
 189                                 }
 190                         }
 191                 }
 192                 delete [] sState;
 193                 subs = 0;
 194                 while(!nstates.empty()) // substates ?
 195                 {
 196                         state = nstates.front();
 197                         filestr<<"subgraph cluster"<<subs<<" {\n";
 198                         pos1 = state.find(",");
 199                         pos2 = state.substr(pos1+1).find(",")+pos1+1;
 200                         if(pos1 == pos2) return false;
 201                         context = cut_namespaces(state.substr(0,pos1));
 202                         filestr<<"label=\""<<context<<"\";\n";
 203                         cnt = count(state.substr(pos2+1),',');
 204                         sState = new string [cnt+1];
 205                         str = state.substr(pos2+1);
 206                         if(cnt>0) str = get_params(str);
 207                         num_start = cnt+1;
 208                         for(int i = 0;i<=cnt;i++)
 209                         {
 210                                 if(i == cnt) sState[i] = str;
 211                                 else
 212                                 {
 213                                         sState[i] = str.substr(0,str.find(','));
 214                                         str = str.substr(str.find(',')+1);
 215                                 }
 216                         }
 217                         nstates.pop_front();
 218                         for(list<string>::iterator i = nstates.begin();i!=nstates.end();i++)
 219                         {
 220                                 state = *i;
 221                                 cnt = count(state,',');
 222                                 if(count(state,'>')==1) //ortho states
 223                                 {
 224                                         orto = 1;
 225                                         if(cnt>1)cnt = 2;
 226                                 }
 227                                 if(cnt==1)
 228                                 {
 229                                         pos1 = state.find(",");
 230                                         if(orto == 1) ctx = cut_namespaces(cut_namespaces(state.substr(pos1+1),1));
 231                                         else ctx = cut_namespaces(state.substr(pos1+1));
 232                                         if(ctx.compare(0,context.length(),context)==0 && context.length()==ctx.length())
 233                                         {
 234                                                 str = cut_namespaces(state.substr(0,pos1));
 235                                                 if(test_start(sState,str,num_start))
 236                                                 {
 237                                                         filestr<<str<<" [peripheries=2];\n";
 238                                                         table[cols*nState]="*";
 239                                                 }
 240                                                 else filestr<<str<<"\n";
 241                                                 table[cols*nState+2] = str;
 242                                                 table[cols*nState+1] = context;
 243                                                 nState+=1;
 244                                                 nstates.erase(i);
 245                                                 i--;
 246                                         }
 247                                 }
 248                                 if(cnt==2)
 249                                 {
 250                                         pos1 = state.find(",");
 251                                         pos2 = state.rfind(",");
 252                                         ctx = cut_namespaces(state.substr(pos1+1,pos2-pos1-1));
 253                                         if(ctx.compare(0,context.length(),context)==0 && context.length()==ctx.length())
 254                                         {
 255                                                 str = cut_namespaces(state.substr(0,pos1));
 256                                                 if(test_start(sState,str,num_start))
 257                                                 {
 258                                                         filestr<<str<<" [peripheries=2];\n";
 259                                                         table[cols*nState]="*";
 260                                                 }
 261                                                 else filestr<<str<<"\n";
 262                                                 table[cols*nState+2] = str;
 263                                                 table[cols*nState+1] = context;
 264                                                 nState+=1;
 265                                         }
 266                                 }
 267                         }
 268                         filestr<<"}\n";
 269                         subs+=1;
 270                         delete [] sState;
 271                 }
 272                 return true;
 273         }
 274
 275         void write_transitions(ofstream& filestr) /** Write transitions to the output file nad the transition table. */
 276         {
 277                 int pos1, pos2;
 278                 string params, state, event, dest;
 279                 for(list<string>::iterator i = transitions.begin();i!=transitions.end();i++) // write all transitions
 280                 {
 281                         params = *i;
 282                         if(count(params,',')==2)
 283                         {
 284                                 pos1 = params.find(",");
 285                                 state = cut_namespaces(params.substr(0,pos1));
 286                                 filestr<<state<<"->";
 287                                 pos2 = params.rfind(",");
 288                                 dest = cut_namespaces(params.substr(pos2+1));
 289                                 filestr<<dest;
 290                                 event = cut_namespaces(params.substr(pos1+1,pos2-pos1-1));
 291                                 filestr<<"[label=\""<<event<<"\"];\n";
 292                                 table[find_place(state,2)*cols+find_place(event,1)]=dest;
 293                         }
 294                 }
 295                 return;
 296         }
 297
 298         void fill_table_with_events() /** Fill the first row of the transition table with events. */
 299         {
 300                 int j = 3;
 301                 for(list<string>::iterator i = events.begin();i!=events.end();i++)
 302                 {
 303                         table[j] = *i;
 304                         j++;
 305                 }
 306         }
 307
 308         void save_to_file() /** Create output file stream and write there the name of state machine. It controls the whole process of writing into output files. */
 309         {
 310                 if(!name_of_first_state.empty())
 311                 {
 312                         ofstream filestr(outputFilename.c_str());
 313                         filestr<<"digraph "<< name_of_machine<< " {\n";
 314                         cols = events.size()+3;
 315                         rows = states.size()+1;
 316                         table = new string [cols*rows];
 317                         fill_table_with_events();
 318                         if(!write_states(filestr))
 319                         {
 320                                 cerr<<"Error during writing states.\n";
 321                                 filestr<<"}";
 322                                 filestr.close();
 323                                 return;
 324                         }
 325                         write_transitions(filestr);
 326                         filestr<<"}";
 327                         filestr.close();
 328                         // call write_reactions();
 329                         print_table();
 330                 }
 331                 else cout<<"No state machine was found. So no output file was created.\n";
 332                 return;
 333         }
 334
 335         void print_table() /** This function prints the transition table. At first it counts the size of all columns. */
 336         {
 337                 cout<<"\nTRANSITION TABLE\n";
 338                 unsigned * len = new unsigned[cols];
 339                 len[0] = 1;
 340                 string line = "-|---|-";
 341                 for(int i = 1; i<cols; i++)
 342                 {
 343                         len[i] = 0;
 344                         for(int j = 0;j<rows;j++)
 345                         {
 346                                 if(len[i]<table[j*cols+i].length()) len[i] = table[j*cols+i].length();
 347                         }
 348                         for(unsigned k = 0; k<len[i]; k++)
 349                         {
 350                                 line.append("-");
 351                         }
 352                         line.append("-|-");
 353                 }
 354                 cout<<line<<"\n";
 355                 for(int i = 0; i<rows; i++)
 356                 {
 357                         cout<<" | ";
 358                         for(int j = 0;j<cols;j++)
 359                         {
 360                                 cout.width(len[j]);
 361                                 cout<<left<<table[i*cols+j]<<" | ";
 362                         }
 363                         cout<<"\n";
 364                         cout<<line<<"\n";
 365                 }
 366                 delete [] len;
 367         }
 368
 369         void print_stats() /** Print short statistics about the state machine */
 370         {
 371                 cout<<"\n"<<"Statistics: \n";
 372                 cout<<"Number of states: "<<states.size()<<"\n";
 373                 cout<<"Number of events: "<<events.size()<<"\n";
 374                 cout<<"Number of transitions: "<<transitions.size()<<"\n\n";
 375                 return;
 376         }
 377
 378 };