Exemplo n.º 1
0
 public List<Book> GetBooks(string searchQuery, Bookenum tempAttributes)
 {
     try
     {
         return controller.GetBookFromXmlParser(searchQuery, tempAttributes);
     }
     catch (Exception e)
     {
         Console.Write(e.StackTrace);
         return null;
     }
 }
Exemplo n.º 2
0
 /// <summary>
 /// Returns a list of books from the XmlParser class.
 /// </summary>
 /// <param name="searchQuery"></param>
 /// <param name="tempAttributes"></param>
 /// <returns></returns>
 public List<Book> GetBookFromXmlParser(string searchQuery, Bookenum tempAttributes)
 {
     return xmlParser.ParseXml(searchQuery, tempAttributes);
 }
Exemplo n.º 3
0
        /// <summary>
        /// This method takes the inparameters searchQuery and tempAttributes to find the correct books and return
        /// them in a list of books.
        /// To search the xml-file an XmlTestReader is used. It locates the xml-file
        /// and reads it into a dataset.
        /// 
        /// The method then loops through the table and rows of the dataset to find the right match from the searchQuery.
        /// The method uses a switch case statement to check which attributes of the book the user has choosen to search for.
        /// Depending on the inparameter of the attribute, which is found in the enum bookAttributes, the method choose a case.
        /// The case finds the row of the dataset where the field equals the attribute.
        /// 
        /// Thereafter it checks the value of the field, and if it contains the searchQuery for a match.
        /// For the user to be able to search independent of capital or lower case letters the searchQuery and the
        /// value of the matched field both uses the native method ToUpper() to match the searchresult with the query.
        /// If it's a match the temporary bookobject get's the attributes of the matched field and attribute.
        /// 
        /// The temporary book is finally added to the list of books and the switch break and the method returns the list.
        /// </summary>
        /// <param name="searchQuery"></param>
        /// <param name="tempAttributes"></param>
        /// <returns></returns>
        public List<Book> ParseXml(string searchQuery, Bookenum tempAttributes)
        {
            searchQuery = searchQuery.ToUpper();
            List<Book> listOfBooks = new List<Book>();
            XmlTextReader xmlReader = new XmlTextReader(libApp.Server.MapPath("~/XML/books.xml"));

            DataSet dataSet = new DataSet();
            dataSet.ReadXml(xmlReader);

            foreach (DataTable table in dataSet.Tables)
            {
                foreach (DataRow row in table.Rows)
                {
                    Book tempBook = new Book();
                    switch (tempAttributes)
                    {

                        case Bookenum.Author:
                            if (row.Field<String>("author").ToUpper().Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Description:
                            if (row.Field<String>("description").ToUpper().Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Genre:
                            if (row.Field<String>("genre").ToUpper().Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Id:
                            if (row.Field<String>("id").Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Price:
                            if (row.Field<String>("price").Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Publishdate:
                            if (row.Field<String>("publish_date").Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;

                        case Bookenum.Title:
                            if (row.Field<String>("title").ToUpper().Contains(searchQuery))
                            {
                                tempBook.Title = row.Field<String>("title");
                                tempBook.Author = row.Field<String>("author");
                                tempBook.Description = row.Field<String>("description");
                                tempBook.Genre = row.Field<String>("genre");
                                tempBook.Publish_date = row.Field<String>("publish_date");
                                tempBook.Id = row.Field<String>("id");

                                //Changing to us culture so the price can be parsed correctly to decimal.
                                System.Globalization.CultureInfo usCulture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");

                                String tempString = row.Field<String>("price");
                                decimal d = Decimal.Parse(tempString, usCulture);
                                tempBook.Price = d;

                                listOfBooks.Add(tempBook);
                            }
                            break;
                    }
                }
            }
            return listOfBooks;
        }