/// <summary>
/// Finds a book by tag.
/// </summary>
/// <param name="parameter"></param>
/// <returns>Book</returns>
public Book FindBookByTag(IFinder parameter)
{
if (parameter == null)
{
throw new ArgumentNullException();
}
return(parameter.FindBook());
}
/// <summary>
/// Find book by given criteria.
/// </summary>
/// <param name="finder">Criteria for finding.</param>
public Book FindBookByTag(IFinder finder)
{
if (ReferenceEquals(finder, null))
{
throw new ArgumentException($"{nameof(finder)} is null.");
}
foreach (Book book in bookList)
{
if (finder.FindBook(book))
{
return(book);
}
}
return(null);
}
/// <summary>
/// Searches for a book by tag.
/// </summary>
/// <param name="parameter"></param>
/// <returns></returns>
public Book FindBookByTag(IFinder parameter)
{
try
{
if (parameter == null)
{
throw new ArgumentNullException(nameof(parameter));
}
}
catch (ArgumentNullException exception)
{
_logger.Error(exception.Message);
}
return(parameter.FindBook());
}
