//=====================================================================================
// Parsing Heandler Section:
// Current Section is parsing XML and JSON objects
//=====================================================================================
/// <summary>
/// Parse XML object
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
private async Task parseByXMLDocument(string param)
{
// build search string
string xmlUrl = "http://www.omdbapi.com/?s=" + param + "&r=xml";
logger.Information("Creating new object based on XML format. Link: {0}", xmlUrl);
XmlDocument doc = new XmlDocument();
doc.Load(xmlUrl);
XmlNodeList MovieNodeList = doc.SelectNodes("/root/result");
// check if xml file return anything
if (MovieNodeList != null)
{
// pasre the xml object
foreach (XmlNode node in MovieNodeList)
{
var Movie = new Movie();
Movie.Title = node.Attributes.GetNamedItem("Title").Value;
Movie.Year = node.Attributes.GetNamedItem("Year").Value;
Movie.imdbID = node.Attributes.GetNamedItem("imdbID").Value;
Movie.Type = node.Attributes.GetNamedItem("Type").Value;
if (node.Attributes["Poster"] != null)
{
Movie.Poster = node.Attributes.GetNamedItem("Poster").Value;
}
db.Movies.Add(Movie);
await db.SaveChangesAsync();
var queueMessage = new CloudQueueMessage(Movie.MovieId.ToString());
await imagesQueue.AddMessageAsync(queueMessage);
logger.Information("Created queue message for MovieId {0}", Movie.MovieId);
}
}
else
{
logger.Error("Not valid request for XML object. Link: {0}", xmlUrl);
}
}
/// <summary>
/// parseByJSONDocument Function:
/// Parse JSON object
/// </summary>
/// <param name="temp"></param>
/// <returns></returns>
private async Task parseByJSONDocument(string temp)
{
// build search string
string jsonUrl = "http://www.omdbapi.com/?s=" + temp + "&r=json";
logger.Information("Creating new object based on JSON format. Link: {0}", jsonUrl);
// make web request to retrive json objects
WebRequest request = WebRequest.Create(jsonUrl);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
// check for valid repsonce
if ((response.StatusCode == HttpStatusCode.OK))
{
string json;
using (var sr = new StreamReader(response.GetResponseStream()))
{
json = sr.ReadToEnd();
}
dynamic sData = Newtonsoft.Json.JsonConvert.DeserializeObject(json);
// JObject sData = JObject.Parse(json);
foreach (var item in sData["Search"])
{
string title = (string)item["Title"];
string year = (string)item["Year"];
string imdbID = (string)item["imdbID"];
string type = (string)item["Type"];
string poster = (string)item["Poster"];
Movie movie = new Movie();
movie.Title = title;
movie.Year = year;
movie.imdbID = imdbID;
movie.Type = type;
movie.Poster = poster;
db.Movies.Add(movie);
await db.SaveChangesAsync();
var queueMessage = new CloudQueueMessage(movie.MovieId.ToString());
await imagesQueue.AddMessageAsync(queueMessage);
logger.Information("Created queue message for MovieId {0}", movie.MovieId);
}
}
else
{
logger.Error("Not valid request for JSON object. Link: {0}", jsonUrl);
}
}
//=====================================================================================
// Blob Deleting Section:
// Current Section takes care of deleting the blobs instance if image exists
//=====================================================================================
/// <summary>
/// DeleteMovieBlobsAsync Fucntion:
/// delete blob from the storage
/// </summary>
/// <param name="movie"></param>
/// <returns></returns>
private async Task DeleteMovieBlobsAsync(Movie movie)
{
if (!string.IsNullOrWhiteSpace(movie.Poster) && (movie.Poster !="N/A"))
{
Uri blobUri = new Uri(movie.Poster);
await DeleteMovieBlobAsync(blobUri);
}
if (!string.IsNullOrWhiteSpace(movie.Poster) && (movie.Poster !="N/A"))
if (!string.IsNullOrWhiteSpace(movie.Thumbnail))
{
Uri blobUri = new Uri(movie.Thumbnail);
await DeleteMovieBlobAsync(blobUri);
}
}