private bool IfEqual(Car c1, CarSearch c2)
{
if (c1.brand != c2.brand && c2.brand != "")
{
return(false);
}
if (c1.model != c2.model && c2.model != "")
{
return(false);
}
if (c1.color != c2.color && c2.color != "")
{
return(false);
}
if (Convert.ToDouble(c1.volume) < c2.lowVolume || Convert.ToDouble(c1.volume) > c2.highVolume)
{
return(false);
}
if (Convert.ToInt32(c1.year) < c2.lowYear || Convert.ToInt32(c1.year) > c2.highYear)
{
return(false);
}
if (Convert.ToInt32(c1.price) < c2.lowPrice || Convert.ToInt32(c1.price) > c2.highPrice)
{
return(false);
}
return(true);
}
public List <Car> Search(CarSearch c)
{
List <Car> result = new List <Car>();
var reader = new XmlTextReader(path);
string currBrand = "";
while (reader.Read())
{
if (reader.Name == "brand")
{
if (reader.HasAttributes)
{
reader.MoveToNextAttribute();
if (reader.Name.Equals("Brand"))
{
currBrand = reader.Value;
}
}
}
if (reader.Name == "car")
{
if (reader.HasAttributes)
{
Car current = new Car();
current.brand = currBrand;
while (reader.MoveToNextAttribute())
{
if (reader.Name == "model")
{
current.model = reader.Value;
}
if (reader.Name == "year")
{
current.year = reader.Value;
}
if (reader.Name == "volume")
{
current.volume = reader.Value;
}
if (reader.Name == "price")
{
current.price = reader.Value;
}
if (reader.Name == "color")
{
current.color = reader.Value;
}
}
if (IfEqual(current, c))
{
result.Add(current);
}
}
}
}
reader.Close();
return(result);
}
public List <Car> Search(CarSearch c)
{
List <Car> result = new List <Car>();
XDocument doc = XDocument.Load(path);
var cars = from obj in doc.Descendants("car")
select new
{
brand = (string)obj.Parent.Attribute("Brand"),
model = (string)obj.Attribute("model"),
year = (string)obj.Attribute("year"),
volume = (string)obj.Attribute("volume"),
price = (string)obj.Attribute("price"),
color = (string)obj.Attribute("color")
};
foreach (var current in cars)
{
Car car = new Car();
car.brand = current.brand;
car.model = current.model;
car.year = current.year;
car.volume = current.volume;
car.price = current.price;
car.color = current.color;
if (IfEqual(car, c))
{
result.Add(car);
}
}
return(result);
}
public List <Car> Search(CarSearch c)
{
string currentBrand;
List <Car> result = new List <Car>();
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlElement root = doc.DocumentElement;
foreach (XmlNode n in root.ChildNodes)
{
foreach (XmlNode a in n.ChildNodes)
{
Car current = new Car();
currentBrand = n.Attributes[0].Value;
if (currentBrand != c.brand && c.brand != "")
{
break;
}
else
{
current.brand = currentBrand;
foreach (XmlAttribute attribu in a.Attributes)
{
if (attribu.Name == "model")
{
current.model = attribu.InnerText;
}
if (attribu.Name == "year")
{
current.year = attribu.InnerText;
}
if (attribu.Name == "volume")
{
current.volume = attribu.InnerText;
}
if (attribu.Name == "price")
{
current.price = attribu.InnerText;
}
if (attribu.Name == "color")
{
current.color = attribu.InnerText;
}
}
if (IfEqual(current, c))
{
result.Add(current);
}
}
}
}
return(result);
}
private CarSearch FindParams()
{
CarSearch car = new CarSearch();
if (BrandCheck.Checked)
{
car.brand = Brand.Text;
}
if (ModelCheck.Checked)
{
car.model = Model.Text;
}
if (ColorCheck.Checked)
{
car.color = Color.Text;
}
if (PriceCheck.Checked)
{
if (LowerPrice.Text != "")
{
car.lowPrice = Convert.ToInt32(LowerPrice.Text);
}
if (HigherPrice.Text != "")
{
car.highPrice = Convert.ToInt32(HigherPrice.Text);
}
}
if (VolumeCheck.Checked)
{
if (LowerVolume.Text != "")
{
car.lowVolume = Convert.ToDouble(LowerVolume.Text);
}
if (HigherVolume.Text != "")
{
car.highVolume = Convert.ToDouble(HigherVolume.Text);
}
}
if (YearCheck.Checked)
{
if (LowerYear.Text != "")
{
car.lowYear = Convert.ToInt32(LowerYear.Text);
}
if (HigherYear.Text != "")
{
car.highYear = Convert.ToInt32(HigherYear.Text);
}
}
return(car);
}
private void Find_Click(object sender, EventArgs e)
{
IStrategy strategy = new DOM(path);
CarSearch c = FindParams();
if (Dom.Checked == true)
{
strategy = new DOM(path);
}
if (Sax.Checked == true)
{
strategy = new SAX(path);
}
if (Linq.Checked == true)
{
strategy = new LINQtoXML(path);
}
list = strategy.Search(c);
PrintInfo(list);
CreateXML();
}