/// <summary>
/// This method forward the call to the Update method with adding the single method number inside a single item int list
/// </summary>
/// <param name="type">Type of the mining entity</param>
/// <param name="methodList">List of methods to be executed</param>
/// <param name="miningState">Mining state to monitor the progress of the mining</param>
public void Update(MiningEntityType type, int methodNumber, MiningState miningState)
{
var list = new List <int>()
{
methodNumber
};
Update(type, list, miningState);
}
public void UpdateGenres(int methodNumber, MiningState miningState = null)
{
var list = new List <int>()
{
methodNumber
};
UpdateGenres(list, miningState);
}
/// <summary>
/// This method calls right update method based on the mining entity type
/// </summary>
/// <param name="type">Type of the mining entity</param>
/// <param name="methodList">List of methods to be executed</param>
/// <param name="miningState">Mining state to monitor the progress of the mining</param>
public void Update(MiningEntityType type, List <int> methodList, MiningState miningState)
{
switch (type)
{
case MiningEntityType.Books:
UpdateBooks(methodList, miningState);
break;
case MiningEntityType.Authors:
UpdateAuthors(methodList, miningState);
break;
case MiningEntityType.Genres:
UpdateGenres(methodList, miningState);
break;
case MiningEntityType.Characters:
UpdateCharacters(methodList, miningState);
break;
default:
throw new NotSupportedException(type.ToString());
}
}
/// <summary>
/// Method which takes IEnumerable with the data and calls the assigned line action on every line of the data.
/// The data needs to fit inside the line action.
/// This method is meant to be used when mining from web interface
/// </summary>
/// <param name="data">Enumerable with the data lines</param>
/// <param name="lineAction">Action which will be executed on each line</param>
/// <param name="miningState">Mining state of the operation from the MiningProxySingleton used to monitor the data mining</param>
protected void UpdateDatabase <T>(IEnumerable <T> data, LineAction <T> lineAction, MiningState miningState)
{
// fall back for deprecated commandline mining
if (miningState == null)
{
UpdateDatabase <T>(data, lineAction);
return;
}
try
{
// set the mining state
miningState.CurrentState = MiningStateType.RunningQueryingEndpoint;
var listData = data.ToList();
miningState.CurrentState = MiningStateType.Running;
var currentPosition = 0;
using (var db = new BookRecommenderContext())
{
// proccess each line using the line action and log changes to the mining state
foreach (var line in listData)
{
lineAction(line, db);
currentPosition++;
miningState.Message = String.Format("{0}/{1}",
currentPosition, listData.Count);
}
miningState.CurrentState = MiningStateType.RunningSavingToDatabase;
db.SaveChanges();
miningState.CurrentState = MiningStateType.Completed;
miningState.Message = DateTime.Now.ToString();
}
}
catch (Exception ex)
{
// If something went wrong, wait 10 sec and then try again
miningState.CurrentState = MiningStateType.Error;
miningState.Message = ex.Message;
}
}
/// <summary> /// Method which call the right updating the database with correct action and data pairs /// </summary> /// <param name="methodList">List of methods to be executed</param> /// <param name="miningState">Mining state to monitor the progress of the mining</param> public abstract void UpdateGenres(List <int> methodList, MiningState miningState = null);
/// <summary> /// Method which call the right updating the database with correct action and data pairs /// </summary> /// <param name="methodList">List of methods to be executed</param> /// <param name="miningState">Mining state to monitor the progress of the mining</param> public abstract void UpdateCharacters(List <int> methodList, MiningState miningState = null);
