public void Load(string service, string method, string query, CacheObjectType type)
{
Log.Debug($"Loading cache data for {service}::{method} of type {type}");
// if the cache already exists do not generate it again!
if (this.Exists(service, method) == true)
{
return;
}
try
{
MySqlConnection connection = null;
MySqlDataReader reader = Database.Query(ref connection, query);
PyDataType cacheObject = null;
using (connection)
using (reader)
{
switch (type)
{
case CacheObjectType.Rowset:
cacheObject = Rowset.FromMySqlDataReader(reader);
break;
case CacheObjectType.CRowset:
cacheObject = CRowset.FromMySqlDataReader(reader);
break;
case CacheObjectType.TupleSet:
cacheObject = TupleSet.FromMySqlDataReader(reader);
break;
case CacheObjectType.PackedRowList:
cacheObject = PyPackedRowList.FromMySqlDataReader(reader);
break;
case CacheObjectType.IntIntDict:
cacheObject = IntIntDictionary.FromMySqlDataReader(reader);
break;
case CacheObjectType.IndexRowset:
cacheObject = IndexRowset.FromMySqlDataReader(reader, 0);
break;
}
StoreCall(service, method, cacheObject, DateTime.UtcNow.ToFileTimeUtc());
}
}
catch (Exception)
{
Log.Error($"Cannot generate cache data for {service}::{method}");
throw;
}
}
/// <summary>
/// Helper method that queries the cached object and converts it to the proper type to be stored
/// </summary>
/// <param name="query">The query to run</param>
/// <param name="type">The type of object to store</param>
/// <returns>The final object to be used by the cache</returns>
private PyDataType QueryCacheObject(string query, CacheObjectType type)
{
MySqlConnection connection = null;
MySqlDataReader reader = Database.Query(ref connection, query);
using (connection)
using (reader)
{
return(type switch
{
CacheObjectType.Rowset => Rowset.FromMySqlDataReader(Database, reader),
CacheObjectType.CRowset => CRowset.FromMySqlDataReader(Database, reader),
CacheObjectType.TupleSet => TupleSet.FromMySqlDataReader(Database, reader),
CacheObjectType.PackedRowList => PyPackedRowList.FromMySqlDataReader(Database, reader),
CacheObjectType.IntIntDict => IntIntDictionary.FromMySqlDataReader(reader),
CacheObjectType.IndexRowset => IndexRowset.FromMySqlDataReader(Database, reader, 0),
_ => null
});
/// <summary>
/// Runs one prepared query with the given values as parameters and returns a IntIntDictionary representing the result
/// </summary>
/// <param name="query">The prepared query</param>
/// <returns>The Rowset object representing the result</returns>
public PyDataType PrepareIntIntDictionary(string query)
{
try
{
MySqlConnection connection = null;
// create the correct command
MySqlCommand command = this.PrepareQuery(ref connection, query);
MySqlDataReader reader = command.ExecuteReader();
using (connection)
using (reader)
{
// run the prepared statement
return(IntIntDictionary.FromMySqlDataReader(reader));
}
}
catch (Exception e)
{
Log.Error($"MySQL error: {e.Message}");
throw;
}
}