/// <summary>
/// Prepares the statement if the <see cref="IQueryRequest"/> is not ad-hoc and caches it for reuse.asynchronously.
/// </summary>
/// <param name="originalRequest">The original query request.</param>
async Task PrepareStatementIfNotAdHocAsync(IQueryRequest originalRequest)
{
if (originalRequest.IsAdHoc)
{
return;
}
var statement = originalRequest.GetStatement();
if (statement == null)
{
statement = originalRequest.GetPreparedPayload().Text;
}
QueryPlan queryPlan;
if (_queryCache.TryGetValue(statement, out queryPlan))
{
originalRequest.Prepared(queryPlan);
}
else
{
var result = await PrepareAsync(originalRequest);
if (!result.Success)
{
return; //FIXME propagate the error somehow
}
queryPlan = result.Rows.First();
queryPlan.Text = originalRequest.GetStatement();
if (_queryCache.TryAdd(statement, queryPlan))
{
originalRequest.Prepared(queryPlan);
}
}
}
/// <summary>
/// Prepares the statement if the <see cref="IQueryRequest"/> is not ad-hoc and caches it for reuse.
/// </summary>
/// <param name="originalRequest">The original query request.</param>
void PrepareStatementIfNotAdHoc(IQueryRequest originalRequest)
{
if (originalRequest.IsAdHoc)
{
return;
}
var statement = originalRequest.GetStatement();
if (statement == null)
{
statement = originalRequest.GetPreparedPayload().Text;
}
QueryPlan queryPlan;
if (_queryCache.TryGetValue(statement, out queryPlan))
{
originalRequest.Prepared(queryPlan);
}
else
{
var result = Prepare(originalRequest);
//FIXME throw an exception?
if (!result.Success)
{
return;
}
queryPlan = result.Rows.First();
queryPlan.Text = originalRequest.GetStatement(); //the plan Text will be used if we reprepare it
if (_queryCache.TryAdd(statement, queryPlan))
{
originalRequest.Prepared(queryPlan);
}
}
}
