/// <summary>
/// Găsește valoarea intersecției unui termen fuzzy cu valoarea unei proprietăți a unui serviciu (ce poate fi fuzzy sau crisp).
/// </summary>
/// <param name="service">Serviciul de care aparține proprietatea</param>
/// <param name="property">Proprietatea a cărei valoare se va folosi pentru intersecție</param>
/// <param name="shape">Termenul care se intersectează cu valoarea proprietății</param>
/// <returns>Valoarea intersecției celor 2 termeni</returns>
public static double intersect(Service service, Property property, Term shape)
{
try {
bool isLowerBetter = shape.start > shape.end || property.start > property.end;
double start2 = isLowerBetter ? shape.end : shape.start;
double left2 = isLowerBetter ? shape.right : shape.left;
double right2 = isLowerBetter ? shape.left : shape.right;
double end2 = isLowerBetter ? shape.start : shape.end;
if (service.isFuzzy(property)) {
Term term = service.getFuzzyValue(property);
if (term == null) {
return double.NaN;
}
double result = intersectLinesY(term.start, term.left, 0.0, 1.0, start2, left2, 0.0, 1.0);
result = Math.Max(result, intersectLinesY(term.left, term.right, 1.0, 1.0, start2, left2, 0.0, 1.0));
result = Math.Max(result, intersectLinesY(term.right, term.end, 1.0, 0.0, start2, left2, 0.0, 1.0));
result = Math.Max(result, intersectLinesY(term.start, term.left, 0.0, 1.0, left2, right2, 1.0, 1.0));
result = Math.Max(result, intersectLinesY(term.left, term.right, 1.0, 1.0, left2, right2, 1.0, 1.0));
result = Math.Max(result, intersectLinesY(term.right, term.end, 1.0, 0.0, left2, right2, 1.0, 1.0));
result = Math.Max(result, intersectLinesY(term.start, term.left, 0.0, 1.0, right2, end2, 1.0, 0.0));
result = Math.Max(result, intersectLinesY(term.left, term.right, 1.0, 1.0, right2, end2, 1.0, 0.0));
return Math.Max(result, intersectLinesY(term.right, term.end, 1.0, 0.0, right2, end2, 1.0, 0.0));
}
else {
double crispValue = service.getCrispValue(property);
if (double.IsNaN(crispValue)) {
return double.NaN;
}
if (crispValue > start2 && crispValue < left2) {
return (crispValue - start2) / (left2 - start2);
}
else {
if (crispValue >= left2 && crispValue <= right2) {
return 1.0;
}
else {
if (crispValue > right2 && crispValue < end2) {
return (crispValue - end2) / (right2 - end2);
}
else {
return 0.0;
}
}
}
}
}
catch (Exception) {
return double.NaN;
}
}
/// <summary>
/// Returnează toate proprietățile unui serviciu într-o formă afișabilă.
/// </summary>
/// <param name="service">Serviciul a cărui proprietăți se caută</param>
/// <returns>Proprietățile, fiecare sub formă de string lizibil</returns>
public string[] getPrintableProperties(Service service)
{
try {
if (service.functionality != null) {
Property[] properties = service.functionality.properties;
string[] result = new string[properties.Length];
for (int i = 0; i < result.Length; ++i) {
result[i] = properties[i].name + " [" + (service.isFuzzy(properties[i]) ? "fuzzy:" + service.getFuzzyValue(properties[i]).name : "crisp:" + service.getCrispValue(properties[i])) + "]";
}
return result;
}
else {
return service.getAllNamesAndValues();
}
}
catch (Exception) {
return new string[0];
}
}