public List<AlbumInfo_ReturnType> GetAlbumInformation(string albumName)
{
AlbumInfo_ReturnType albumRC = new AlbumInfo_ReturnType();
List<AlbumInfo_ReturnType> list = new List<AlbumInfo_ReturnType>();
try
{
ObjectCache cache = MemoryCache.Default;
if (!string.IsNullOrEmpty(albumName))
{
albumName = albumName.Trim();
albumRC.AlbumName = albumName;
}
else
throw new Exception(@"Missing AlbumName value.");
if (cache[albumName] != null && cache.Contains(albumName))
{
list = (List<AlbumInfo_ReturnType>)cache.Get(albumName);
}
else
{
list = manageAlbumInfo(albumName, "album");
if (list.Count > 0)
{
CacheItemPolicy cachePolicy = new CacheItemPolicy();
cachePolicy.AbsoluteExpiration = DateTime.Now.AddHours(1);
cache.Add(albumName, list, cachePolicy);
}
}
}
catch (Exception e)
{
albumRC.Status = -1;
albumRC.StatusDescription = @"Excetion::" + e.TargetSite + " - " + e.Message;
}
return list;
}
private static SongApplication_ReturnType manageSongRecord(string albumName, string songName, string songLength, string trackNumber, string genre, string tagName, string action, ref string songId, string albumId)
{
SongApplication_ReturnType dataRC = new SongApplication_ReturnType();
List<AlbumInfo_ReturnType> updateData = new List<AlbumInfo_ReturnType>();
AlbumInfo_ReturnType record = new AlbumInfo_ReturnType();
DataSet dataSet = new DataSet();
string connectDB = string.Empty;
Random rand = new Random(); //0 = SQL, 1 = XML
try
{
if (ConfigurationManager.AppSettings[@"connectionString"] != null)
connectDB = Convert.ToString(ConfigurationManager.AppSettings[@"connectionString"]);
ObjectCache updateCache = MemoryCache.Default;
if (action.Equals(@"update"))
{
if (rand.Next(2) == 0)
{
//sql
dataSet = SongApplicationDataAccess.GetDataSet(2, connectDB, albumId, songId, songName, songLength, trackNumber, genre);
dataRC.StatusDescription = "Update Song was successful.";
dataRC.Status = 0;
}
else
{
//xml
SongApplicationDataAccess.UpdateXMLSongInfo(songId, albumId, songName, songLength, trackNumber, genre, tagName);
dataRC.Status = 0;
dataRC.StatusDescription = "Update request was successful";
}
if (updateCache.Contains(albumName))
{
updateData = (List<AlbumInfo_ReturnType>)updateCache.Get(albumName);
if (updateData != null && updateData.Count > 0)
{
for (int i = 0; i < updateData.Count; i++)
{
if (updateData[i].SongId.ToString().Equals(songId) && updateData[i].AlbumId.ToString().Equals(albumId))
{
updateData[i].SongName = songName;
updateData[i].Length = songLength;
updateData[i].TrackNumber = trackNumber;
updateData[i].Genre = genre;
}
}
}
CacheItemPolicy cachePolicy = new CacheItemPolicy();
cachePolicy.AbsoluteExpiration = DateTime.Now.AddHours(1);
updateCache.Set(albumName, updateData, cachePolicy);
}
}
else if (action.Equals(@"insert"))
{
if (rand.Next(2) == 0)
{
//sql
dataSet = SongApplicationDataAccess.GetDataSet(1, connectDB, albumId, albumName, songName, songLength, trackNumber, genre);
if (dataSet != null && dataSet.Tables != null && dataSet.Tables.Count > 0 && dataSet.Tables[0].Rows != null && dataSet.Tables[0].Rows.Count > 0)
{
if (Convert.IsDBNull(dataSet.Tables[0].Rows[0][@"SongId"]) != null)
songId = Convert.IsDBNull(dataSet.Tables[0].Rows[0][@"SongId"]).ToString();
}
}
else
{
//xml
SongApplicationDataAccess.insertXMLSongInfo(albumName, albumId, songName, songLength, trackNumber, genre, tagName, ref songId);
if (string.IsNullOrEmpty(songId))
{
dataRC.StatusDescription = "Failed to insert record in XML Data source. This can be due to albumn record does not exsits.";
dataRC.Status = -1;
}
}
if (string.IsNullOrEmpty(songId))
{
dataRC.StatusDescription = "Failed to insert song.";
dataRC.Status = -1;
}
else
{
dataRC.StatusDescription = "Tnsert song request was succesful.";
dataRC.Status = 0;
if (updateCache.Contains(albumName))
{
updateData = (List<AlbumInfo_ReturnType>)updateCache.Get(albumName);
if (updateCache != null)
{
record.AlbumId = Convert.ToInt32(albumId);
record.AlbumName = albumName;
record.SongId = Convert.ToInt32(songId);
record.SongName = songName;
record.Length = songLength;
record.TrackNumber = trackNumber;
record.Genre = genre;
updateData.Add(record);
}
CacheItemPolicy cachePolicy = new CacheItemPolicy();
cachePolicy.AbsoluteExpiration = DateTime.Now.AddHours(1);
updateCache.Set(albumName, updateData, cachePolicy);
}
}
}
}
catch (Exception e)
{
dataRC.Status = -1;
dataRC.StatusDescription = @"Excetion::" + e.TargetSite + " - " + e.Message;
}
return dataRC;
}
private static List<AlbumInfo_ReturnType> manageAlbumInfo(string albumName, string tagName)
{
AlbumInfo_ReturnType dataRC = null;
DataTable data = new DataTable();
DataSet dataSet = new DataSet();
string artist = string.Empty;
string connectDB = string.Empty;
List<AlbumInfo_ReturnType> list = new List<AlbumInfo_ReturnType>();
try
{
if ((Convert.ToDateTime(ConfigurationManager.AppSettings[@"recentXMLDataSourceModify"].ToString()) - (Convert.ToDateTime(ConfigurationManager.AppSettings[@"recentSQLDataSourceModify"].ToString()))).TotalMinutes < 0)
{
//sql
if (ConfigurationManager.AppSettings[@"connectionString"] != null)
connectDB = Convert.ToString(ConfigurationManager.AppSettings[@"connectionString"]);
dataSet = SongApplicationDataAccess.GetDataSet(0, connectDB, albumName);
if (dataSet != null && dataSet.Tables != null && dataSet.Tables.Count > 0 && dataSet.Tables[0].Rows != null && dataSet.Tables[0].Rows.Count > 0)
{
data = dataSet.Tables[0];
}
}
else
{
data = SongApplicationDataAccess.GetXMLAlbumData(albumName, tagName, ref artist);
}
if (data != null && data.Rows.Count > 0)
{
for (int rec = 0; rec < data.Rows.Count; rec++)
{
dataRC = new AlbumInfo_ReturnType();
dataRC.AlbumId = (!Convert.IsDBNull(data.Rows[rec][@"albumId"])) ? Convert.ToInt32(data.Rows[rec][@"albumId"]) : 0;
dataRC.SongId = (!Convert.IsDBNull(data.Rows[rec][@"songId"])) ? Convert.ToInt32(data.Rows[rec][@"songId"]) : 0;
dataRC.AlbumName = (!Convert.IsDBNull(data.Rows[rec][@"albumName"])) ? Convert.ToString(data.Rows[rec][@"albumName"]) : string.Empty;
dataRC.Artist = (!Convert.IsDBNull(data.Rows[rec][@"artistName"])) ? Convert.ToString(data.Rows[rec][@"artistName"]) : string.Empty;
dataRC.SongName = (!Convert.IsDBNull(data.Rows[rec][@"songName"])) ? Convert.ToString(data.Rows[rec].ItemArray[data.Columns[@"songName"].Ordinal]) : string.Empty;
dataRC.Length = (!Convert.IsDBNull(data.Rows[rec][@"length"])) ? Convert.ToString(data.Rows[rec][@"length"]) : string.Empty;
dataRC.TrackNumber = (!Convert.IsDBNull(data.Rows[rec][@"trackNumber"])) ? Convert.ToString(data.Rows[rec][@"trackNumber"]) : string.Empty;
dataRC.Genre = (!Convert.IsDBNull(data.Rows[rec][@"genre"])) ? Convert.ToString(data.Rows[rec][@"genre"]) : string.Empty;
if(dataRC != null)
list.Add(dataRC);
}
dataRC.Status = 0;
}
else
{
dataRC.Status = 1;
dataRC.StatusDescription = @"No Records where found for album named - " + albumName;
}
}
catch (Exception e)
{
dataRC.Status = -1;
dataRC.StatusDescription = @"Excetion::" + e.TargetSite + " - " + e.Message;
list.Clear();
list.Add(dataRC);
}
return list;
}
