source/objects/calendarobject/CalendarObject.cpp

   1 #include "CalendarObject.h"
   2 #include "../../common/file.h"
   3
   4 using namespace std;
   5
   6 CalendarObjectLoadResult CalendarObject::LoadFile(std::string LoadFilename){
   7
   8         // Check if the file exists and return
   9         // CALENDAROBJECTLOAD_CANNOTOPEN if not.
  10
  11         if (!FileExists(LoadFilename)){
  12                 return CALENDAROBJECTLOAD_MISSING;
  13         }
  14
  15         ifstream FileStream;
  16         string ReceivedStringData = "";
  17
  18         FileStream.open(LoadFilename, ifstream::in);
  19
  20         if (FileStream.rdstate() & ifstream::failbit){
  21                 return CALENDAROBJECTLOAD_CANNOTOPEN;
  22         }
  23
  24         if (FileStream.rdstate() & ifstream::badbit){
  25                 return CALENDAROBJECTLOAD_CANNOTOPEN;
  26         }
  27
  28         // Read the data into a string.
  29
  30         char *BufferRead = new char[256];
  31
  32         while (!FileStream.eof()){
  33
  34                 FileStream.getline(BufferRead, 256);
  35                 ReceivedStringData.append(BufferRead);
  36                 ReceivedStringData.append("\n");
  37
  38         }
  39
  40         delete[] BufferRead;
  41
  42         CalendarObjectLoadResult StringProcResult = CALENDAROBJECTLOAD_UNITTESTFAIL;
  43
  44         StringProcResult = LoadString(&ReceivedStringData);
  45
  46         return StringProcResult;
  47
  48 }
  49
  50 CalendarObjectLoadResult CalendarObject::LoadString(std::string *LoadStringData){
  51
  52         bool NewLine = false;
  53         bool SkipMode = false;
  54         bool ColonFound = false;
  55         char BufferChar = 0;
  56         int StringDataSize = LoadStringData->size();
  57         int SeekCount = 0;
  58         string PropertyName;
  59         string PropertyValue;
  60
  61         while (SeekCount < StringDataSize){
  62
  63                 // Check if character is blank or a tab and is the first character
  64                 // on a new line.
  65
  66                 if (((*LoadStringData)[SeekCount] == ' ' ||
  67                         (*LoadStringData)[SeekCount] == '\t')
  68                         && NewLine == true){
  69
  70                         // Character is on a new line and it is a space or
  71                         // tab. Ignore this character as it is not part
  72                         // of the value.
  73
  74                         NewLine = false;
  75
  76                 } else if (NewLine == true){
  77
  78                         // Character is on a new line but not a space or
  79                         // tab so check if the colon has been found
  80                         // and add the property name and value to
  81                         // the lists.
  82
  83                         if (ColonFound == true){
  84                                 ObjectName.insert(ObjectName.end(), PropertyName);
  85                                 ObjectData.insert(ObjectData.end(), PropertyValue);
  86                         }
  87
  88                         ColonFound = false;
  89                         NewLine = false;
  90                         PropertyName.clear();
  91                         PropertyValue.clear();
  92
  93                         BufferChar = (*LoadStringData)[SeekCount];
  94                         PropertyName += BufferChar;
  95
  96                 } else if ((*LoadStringData)[SeekCount] == '\n'){
  97
  98                         // Character is the new line character so mark
  99                         // the NewLine boolean as true.
 100
 101                         NewLine = true;
 102
 103                 } else if ((*LoadStringData)[SeekCount] == ':'){
 104
 105                         // Character is the colon. Set the colon
 106                         // found boolen to true.
 107
 108                         ColonFound = true;
 109
 110                 } else {
 111
 112                         // Character is not part of a new line and is not
 113                         // the new line character itself.
 114
 115                         BufferChar = (*LoadStringData)[SeekCount];
 116
 117                         if (ColonFound == false){
 118                                 PropertyName += BufferChar;
 119                         } else {
 120                                 PropertyValue += BufferChar;
 121                         }
 122
 123                 }
 124
 125                 SeekCount++;
 126
 127         }
 128
 129         // Finish off processing any data that wasn't processed
 130         // when the end of the string was reached.
 131
 132         if (ColonFound == true &&
 133                 PropertyName.size() > 0 &&
 134                 PropertyValue.size() > 0){
 135
 136                 ObjectName.insert(ObjectName.end(), PropertyName);
 137                 ObjectData.insert(ObjectData.end(), PropertyValue);
 138
 139         }
 140
 141         // Check that the object contains valid data.
 142
 143         CalendarObjectLoadResult StringProcResult = CALENDAROBJECTLOAD_UNITTESTFAIL;
 144         CalendarObjectValidResult BaseDataResult = ValidBaseObject();
 145         CalendarObjectValidResult EventDataResult = ValidObject();
 146
 147         if (BaseDataResult != CALENDAROBJECTVALID_OK ||
 148                 EventDataResult != CALENDAROBJECTVALID_OK){
 149
 150                 StringProcResult = CALENDAROBJECTLOAD_INVALIDFORMAT;
 151
 152         } else {
 153
 154                 StringProcResult = CALENDAROBJECTLOAD_OK;
 155
 156         }
 157
 158         return StringProcResult;
 159
 160 }
 161
 162 CalendarObjectValidResult CalendarObject::ValidBaseObject(){
 163
 164         bool ValidBegin = false;
 165         bool ValidVersion = false;
 166         bool ValidEnd = false;
 167         int SeekCount = 0;
 168
 169         // Check that the first line contains BEGIN:VCALENDAR
 170         // and it only appears once.
 171
 172         for (vector<string>::iterator iter = ObjectName.begin();
 173                 iter != ObjectName.end(); iter++){
 174
 175                 if (ObjectName[SeekCount] == "BEGIN" &&
 176                         ObjectData[SeekCount] == "VCALENDAR"){
 177
 178                         if (ValidBegin == false){
 179                                 ValidBegin = true;
 180                         } else {
 181                                 return CALENDAROBJECTVALID_INVALIDFORMAT;
 182                         }
 183
 184                 }
 185
 186                 SeekCount++;
 187
 188         }
 189
 190         SeekCount = 0;
 191
 192         // Check that the last line contains END:VCALENDAR
 193         // and it only appears once.
 194
 195         for (vector<string>::iterator iter = ObjectName.begin();
 196                 iter != ObjectName.end(); iter++){
 197
 198                 if (ObjectName[SeekCount] == "END" &&
 199                         ObjectData[SeekCount] == "VCALENDAR"){
 200
 201                         if (ValidEnd == false){
 202                                 ValidEnd = true;
 203                         } else {
 204                                 return CALENDAROBJECTVALID_INVALIDFORMAT;
 205                         }
 206
 207                 }
 208
 209                 SeekCount++;
 210
 211         }
 212
 213         SeekCount = 0;
 214
 215         // Check that the VERSION value contains 2.0 and that
 216         // it only appears once.
 217
 218         for (vector<string>::iterator iter = ObjectName.begin();
 219                 iter != ObjectName.end(); iter++){
 220
 221                 if (ObjectName[SeekCount] == "VERSION" &&
 222                         ObjectData[SeekCount] == "2.0"){
 223
 224                         if (ValidVersion == false){
 225                                 ValidVersion = true;
 226                         } else {
 227                                 return CALENDAROBJECTVALID_INVALIDFORMAT;
 228                         }
 229
 230                 }
 231
 232                 SeekCount++;
 233
 234         }
 235
 236         if (ValidBegin == true &&
 237                 ValidEnd == true &&
 238                 ValidVersion == true){
 239
 240                 return CALENDAROBJECTVALID_OK;
 241
 242         } else {
 243
 244                 return CALENDAROBJECTVALID_INVALIDFORMAT;
 245
 246         }
 247
 248 }