/// <summary>
/// Handles DELETE http method
/// </summary>
/// <param name="context">Context of incoming http request</param>
private void DeleteHandler(HttpContext context)
{
try
{
ReviewList.Delete(Int32.Parse(context.Request.RawUrl.Split('/').
Last()));
context.Response.Write("200: Review Deleted.");
}
catch (ArgumentNullException)
{
context.Response.StatusCode = 400;
context.Response.Write("Error: Input values are missing.");
}
catch (ArgumentException err)
{
context.Response.StatusCode = 404;
context.Response.Write("Error: " + err.Message);
}
catch (FormatException err)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: " + err.Message);
}
catch (Exception)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: Server had a problem. Please try "
+ "again later.");
}
}
/// <summary>
/// Handles GET http method
/// </summary>
/// <param name="context">Context of incoming http request</param>
private void GetHandler(HttpContext context)
{
try
{
if (context.Request.RawUrl.Split('/').Last() == RESOURCE_URL)
{
context.Response.Write(JsonConvert.SerializeObject(
ReviewList.ReadAll(), Formatting.Indented, new
JsonSerializerSettings
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
}));
}
else
{
context.Response.Write(JsonConvert.SerializeObject(
ReviewList.Read(Int32.Parse(context.Request.RawUrl.
Split('/').Last())), Formatting.Indented, new
JsonSerializerSettings
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
}));
}
}
catch (ArgumentNullException)
{
context.Response.StatusCode = 400;
context.Response.Write("Error: Input values are missing.");
}
catch (ArgumentException err)
{
context.Response.StatusCode = 404;
context.Response.Write("Error: " + err.Message);
}
catch (FormatException err)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: " + err.Message);
}
catch (Exception)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: Server had a problem. Please try "
+ " again later.");
}
}
/// <summary>
/// Deletes an specific song and all its reviews
/// </summary>
/// <param name="songId">Id of specific song to delete</param>
public static void Delete(int songId)
{
Song song = songs.Find(s => s.SongId == songId);
if (song != null)
{
foreach (Review review in song.Reviews)
{
ReviewList.ReadAll().Remove(review);
}
songs.Remove(song);
}
else
{
throw new ArgumentException("Resource not found.");
}
}
/// <summary>
/// Handles PUT http method
/// </summary>
/// <param name="context">Context of incoming http request</param>
private void PutHandler(HttpContext context)
{
try
{
string queryString = new StreamReader(context.Request.
InputStream).ReadToEnd();
string text = HttpUtility.ParseQueryString(queryString).
Get("text");
Review review = new Review(Int32.Parse(context.Request.RawUrl.
Split('/').Last()), text);
ReviewList.Update(Int32.Parse(context.Request.RawUrl.Split('/').
Last()), review);
context.Response.Write("200: Review Updated.");
}
catch (ArgumentNullException)
{
context.Response.StatusCode = 400;
context.Response.Write("Error: Input values are missing.");
}
catch (ArgumentException err)
{
context.Response.StatusCode = 404;
context.Response.Write("Error: " + err.Message);
}
catch (FormatException err)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: " + err.Message);
}
catch (Exception)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: Server had a problem. Please try "
+ "again later.");
}
}
/// <summary>
/// Handles POST http method
/// </summary>
/// <param name="context">Context of incoming http request</param>
private void PostHandler(HttpContext context)
{
try
{
string queryString = new StreamReader(context.Request.
InputStream).ReadToEnd();
string songId = HttpUtility.ParseQueryString(queryString).
Get("songId");
string text = HttpUtility.ParseQueryString(queryString).
Get("text");
Review review = new Review(ReviewList.GenerateId(), text);
ReviewList.Create(review, Int32.Parse(songId));
context.Response.Write("200: Review Created.");
}
catch (ArgumentNullException)
{
context.Response.StatusCode = 400;
context.Response.Write("Error: Input values are missing.");
}
catch (ArgumentException err)
{
context.Response.StatusCode = 404;
context.Response.Write("Error: " + err.Message);
}
catch (FormatException err)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: " + err.Message);
}
catch (Exception)
{
context.Response.StatusCode = 500;
context.Response.Write("Error: Server had a problem. Please try "
+ "again later.");
}
}
