using System;
using MediaService.Objects;
namespace MediaService.Data.Accessors {
public interface ISongDataAccessor: IDataAccessor {
Song[] GetSongs();
Song[] GetQueue();
Song[] GetMostPlayed(Int32 numberOfSongs);
Song[] GetMostPopular(Int32 numberOfSongs);
} /* ISongDataAccessor */
} /* MediaService.Data.Accessors */
using System;
using MediaService.Data.Accessors;
namespace MediaService.Data.Factory {
internal class SongFactory: Factory {
internal static ISongDataAccessor Create() {
return Factory.Create(Accessor.Song) as ISongDataAccessor;
} /* Create */
} /* SongFactory */
} /* MediaService.Data */
using System;
using System.Reflection;
using MediaService.Configuration;
using MediaService.Data.Accessors;
using Microsoft.Practices.EnterpriseLibrary.Configuration;
namespace MediaService.Data.Factory {
internal enum Accessor {
Song
} /* Accessor */
internal class Factory {
internal static IDataAccessor Create(Accessor accessorType) {
DatabaseData configData = LoadConfiguration();
if (configData == null) {
throw new ApplicationException("Could not load configuration.");
}
String blockToLoad = String.Empty;
switch (accessorType) {
case Accessor.Song: blockToLoad = configData.SongDataAccessor; break;
}
if (blockToLoad == String.Empty) {
throw new ApplicationException(String.Format(
"Type entry not found for {0}.", accessorType.ToString()));
}
Int32 index = blockToLoad.IndexOf(",");
string typeToLoad = blockToLoad.Substring(0,index);
string assemblyToLoad = blockToLoad.Substring(typeToLoad.Length + 1,
blockToLoad.Length - typeToLoad.Length - 1);
return (IDataAccessor)Assembly.Load(
assemblyToLoad).CreateInstance(typeToLoad);
} /* Create */
private static DatabaseData LoadConfiguration() {
ConfigurationManager.ClearSingletonSectionCache("databaseConfiguration");
return ConfigurationManager.GetConfiguration(
"databaseConfiguration") as DatabaseData;
} /* LoadConfiguration */
} /* Factory */
} /* MediaService.Data.Factory */
using System;
using MediaService.Data.Accessors;
using MediaService.Data.Factory;
namespace MediaService.Data {
public class Dalc {
public static ISongDataAccessor Song {
get { return SongFactory.Create(); }
} /* Song */
} /* Dalc */
} /* MediaService.Data */
using MediaService.Objects;
using MediaService.Data;
using MediaService.Data.Accessors;
namespace MediaService.Web {
public class Media {
public Song[] GetSongs() {
return Dalc.Song.GetSongs();
} /* GetSongs */
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