/// <summary>
/// Модульные тесты будут применять эту статическую версию
/// </summary>
/// <param name="target"></param>
/// <param name="outgoingData"></param>
public static void SerializeTheQuery(object target, Stream stream)
{
// получение запроса
IQueryable query = target as IQueryable;
if (query == null)
{
Error(stream, "Query visualizer invoked on non-IQueryable target.");
return;
}
//получение сведений о поставщике
Type tQueryImpl = query.GetType();
FieldInfo fiContext = tQueryImpl.GetField("context", BindingFlags.NonPublic | BindingFlags.Instance);
if (fiContext == null)
{
Error(stream, "Query field 'context' not found in type " + tQueryImpl.ToString() + ".");
return;
}
Object objProvider = fiContext.GetValue(query);
if (objProvider == null)
{
Error(stream, "Query field 'context' returned null.");
return;
}
System.Data.Linq.DataContext dataContext = objProvider as System.Data.Linq.DataContext;
if (dataContext == null)
{
Error(stream, "Query is not against a DataContext.");
return;
}
//вызов визуализатора для сериализации сведений о запросе
Visualizer.StreamQueryInfo(dataContext, query, stream);
}
/// <summary>
/// 单元测试将使用此静态版本
/// </summary>
/// <param name="target"></param>
/// <param name="outgoingData"></param>
public static void SerializeTheQuery(object target, Stream stream)
{
// 获取查询
IQueryable query = target as IQueryable;
if (query == null)
{
Error(stream, "Query visualizer invoked on non-IQueryable target.");
return;
}
//获取提供程序
Type tQueryImpl = query.GetType();
FieldInfo fiContext = tQueryImpl.GetField("context", BindingFlags.NonPublic | BindingFlags.Instance);
if (fiContext == null)
{
Error(stream, "Query field 'context' not found in type " + tQueryImpl.ToString() + ".");
return;
}
Object objProvider = fiContext.GetValue(query);
if (objProvider == null)
{
Error(stream, "Query field 'context' returned null.");
return;
}
System.Data.Linq.DataContext dataContext = objProvider as System.Data.Linq.DataContext;
if (dataContext == null)
{
Error(stream, "Query is not against a DataContext.");
return;
}
//调用可视化工具以序列化查询信息
Visualizer.StreamQueryInfo(dataContext, query, stream);
}
