/// <summary>
/// Executa a consulta.
/// </summary>
/// <returns>Resultado na forma de um vetor de <see cref="QueryResult"/></returns>
public IEnumerable <IQueryResult> Execute(IQueryDataSource dataSource)
{
dataSource.Require("dataSource").NotNull();
return(dataSource.Execute(CreateQueryInfos()));
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="dataSource">Fonte de dados</param>
public SqlSourceContext(IQueryDataSource dataSource)
{
dataSource.Require("dataSource").NotNull();
_dataSource = dataSource;
}
/// <summary>
/// Executa a consulta.
/// </summary>
/// <returns>Resultado na forma de um vetor de <see cref="QueryResult"/></returns>
public IEnumerable <IQueryResult> Execute()
{
_dataSource.Require("_dataSource").NotNull();
QueryInfo[] info = CreateQueryInfos();
IEnumerable <IQueryResult> result = null;
try
{
result = _dataSource.Execute(info);
}
catch (Exception ex)
{
for (int i = 0; i < _queries.Count; i++)
{
QueryCallBackWrapper callback;
if (_callbacks.TryGetValue(i, out callback))
{
callback.ExecuteFailedCallBack(this, info[i], new QueryFailedInfo(QueryFailedReason.Error, ex.Message.GetFormatter(), ex));
}
}
throw;
}
for (int i = 0; i < _queries.Count; i++)
{
_queries[i].Parameters = info[i].Parameters;
}
if (_callbacks.Where(f => f.Value != null).Any())
{
var result2 = new List <IQueryResult>();
try
{
var position = 0;
var processed = 0;
using (var resultEnumerator = result.GetEnumerator())
{
for (processed = 0; processed < _queries.Count && resultEnumerator.MoveNext(); processed++)
{
for (position = 0; position < info.Length; position++)
{
if (info[position].Id == resultEnumerator.Current.Id)
{
break;
}
}
QueryCallBackWrapper callback;
if (_callbacks.TryGetValue(position, out callback))
{
var queryResult = resultEnumerator.Current;
callback.ExecuteCallBack(this, info[position], queryResult);
result2.Add(new QueryResult());
}
else
{
using (var recordEnumerator = resultEnumerator.Current.GetEnumerator())
{
if (recordEnumerator.MoveNext())
{
var records = new List <Record>();
records.Add(recordEnumerator.Current);
while (recordEnumerator.MoveNext())
{
records.Add(recordEnumerator.Current);
}
result2.Add(new QueryResult(records[0].Descriptor, records, _queries[position]));
}
else
{
result2.Add(new QueryResult());
}
}
}
}
if (processed < _queries.Count)
{
throw new QueryException(ResourceMessageFormatter.Create(() => Properties.Resources.MultiQueryable_MultiQueryableExecuteErrorProcess).Format());
}
}
}
finally
{
if (result is IDisposable)
{
if (!(result is IDisposableState) || !((IDisposableState)result).IsDisposed)
{
((IDisposable)result).Dispose();
}
}
}
result = result2;
}
return(result);
}