/// <summary>
/// Executes & profiles the execution of the specified <see cref="IDbCommand"/>.
/// </summary>
/// <param name="executeType">The <see cref="DbExecuteType"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> to be executed & profiled.</param>
/// <param name="execute">
/// The execute handler,
/// which should return the <see cref="IDataReader"/> instance if it is an ExecuteReader operation.
/// If it is not ExecuteReader, it should return null.
/// </param>
/// <param name="tags">The tags of the <see cref="DbTiming"/> which will be created internally.</param>
public virtual void ExecuteDbCommand(DbExecuteType executeType, IDbCommand command, Func <IDataReader> execute, TagCollection tags)
{
if (execute == null)
{
return;
}
if (command == null)
{
execute();
return;
}
var dbTiming = new DbTiming(_profiler, executeType, command)
{
Tags = tags
};
var dataReader = execute();
if (dataReader == null)
{
// if not executing reader, stop the sql timing right after execute()
dbTiming.Stop();
return;
}
dbTiming.FirstFetch();
var reader = dataReader as ProfiledDbDataReader ??
new ProfiledDbDataReader(dataReader, this);
_inProgressDataReaders[reader] = dbTiming;
}
/// <summary>
/// Executes & profiles the execution of the specified <see cref="IDbCommand"/>.
/// </summary>
/// <param name="executeType">The <see cref="DbExecuteType"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> to be executed & profiled.</param>
/// <param name="execute">
/// The execute handler,
/// which should return the <see cref="DbDataReader"/> instance if it is an ExecuteReader operation.
/// </param>
/// <param name="tags">The tags of the <see cref="DbTiming"/> which will be created internally.</param>
public virtual Task <DbDataReader> ExecuteDbDataReaderCommandAsync(DbExecuteType executeType, IDbCommand command, Func <Task <DbDataReader> > execute, TagCollection tags)
{
if (command == null)
{
return(execute());
}
var dbTiming = new DbTiming(_profiler, executeType, command)
{
Tags = tags
};
return(execute().ContinueWith <DbDataReader>(r =>
{
var dataReader = r.Result;
if (dataReader == null)
{
// if not executing reader, stop the sql timing right after execute()
dbTiming.Stop();
return null;
}
dbTiming.FirstFetch();
var reader = dataReader as ProfiledDbDataReader ??
new ProfiledDbDataReader(dataReader, this);
_inProgressDataReaders[reader] = dbTiming;
return reader;
}));
}
/// <summary>
/// Executes & profiles the execution of the specified <see cref="IDbCommand"/>.
/// </summary>
/// <param name="executeType">The <see cref="DbExecuteType"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> to be executed & profiled.</param>
/// <param name="execute">
/// The execute handler
/// </param>
/// <param name="tags">The tags of the <see cref="DbTiming"/> which will be created internally.</param>
public virtual async Task <object> ExecuteCommandAsync(DbExecuteType executeType, IDbCommand command, Func <Task <object> > execute, TagCollection tags)
{
if (command == null)
{
return(execute());
}
var dbTiming = new DbTiming(_profiler, executeType, command)
{
Tags = tags
};
var result = await execute();
var dataReader = result as DbDataReader;
if (dataReader == null)
{
// if not executing reader, stop the sql timing right after execute()
dbTiming.Stop();
return(result);
}
dbTiming.FirstFetch();
var reader = dataReader as ProfiledDbDataReader ??
new ProfiledDbDataReader(dataReader, this);
_inProgressDataReaders[reader] = dbTiming;
return(reader);
}
public void TestDbTiming()
{
var stepId = Guid.NewGuid();
ProfilingSession.ProfilingSessionContainer.CurrentSessionStepId = stepId;
var profilerDurationMilliseconds = 10;
var mockProfiler = new Mock<IProfiler>();
mockProfiler.Setup(profiler => profiler.DurationMilliseconds).Returns(() => profilerDurationMilliseconds++);
var executeType = DbExecuteType.Reader;
var commandString = "test sql";
var mockParameters = new Mock<IDataParameterCollection>();
mockParameters.Setup(p => p.GetEnumerator()).Returns(new IDataParameter[0].GetEnumerator());
var mockCommand = new Mock<IDbCommand>();
mockCommand.Setup(cmd => cmd.CommandText).Returns(commandString);
mockCommand.Setup(cmd => cmd.Parameters).Returns(mockParameters.Object);
var target = new DbTiming(mockProfiler.Object, executeType, mockCommand.Object);
target.FirstFetch();
var profilerAddCustomTimingCalled = false;
mockProfiler.Setup(profiler => profiler.AddCustomTiming(It.IsAny<DbTiming>()))
.Callback<CustomTiming>(a =>
{
Assert.AreEqual(target, a);
profilerAddCustomTimingCalled = true;
});
target.Stop();
Assert.AreNotEqual(default(Guid), target.Id);
Assert.AreEqual(stepId, target.ParentId);
Assert.AreEqual(executeType, target.DbExecuteType);
Assert.AreEqual(commandString, target.Name);
Assert.IsTrue(target.Parameters != null);
Assert.AreEqual(10, target.StartMilliseconds);
Assert.AreEqual(1, target.OutputStartMilliseconds);
Assert.AreEqual(2, target.DurationMilliseconds);
Assert.IsTrue(profilerAddCustomTimingCalled);
// when firstFetchDurationMilliseconds is not set and stoppped is called,
// the value of firstFetchDurationMilliseconds should be copied from durationmilliseconds
target.OutputStartMilliseconds = null;
target.Stop();
Assert.AreEqual(target.DurationMilliseconds, target.OutputStartMilliseconds);
}
/// <summary>
/// Executes & profiles the execution of the specified <see cref="IDbCommand"/>.
/// </summary>
/// <param name="executeType">The <see cref="DbExecuteType"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> to be executed & profiled.</param>
/// <param name="execute">
/// The execute handler,
/// which should return the <see cref="IDataReader"/> instance if it is an ExecuteReader operation.
/// If it is not ExecuteReader, it should return null.
/// </param>
/// <param name="tags">The tags of the <see cref="DbTiming"/> which will be created internally.</param>
public virtual void ExecuteDbCommand(DbExecuteType executeType, IDbCommand command, Func<IDataReader> execute, IEnumerable<string> tags)
{
if (execute == null)
{
return;
}
if (command == null)
{
execute();
return;
}
var dbTiming = new DbTiming(_profiler, executeType, command);
if (tags != null && tags.Any())
{
dbTiming.Tags = new TagCollection(tags);
}
var dataReader = execute();
if (dataReader == null)
{
// if not executing reader, stop the sql timing right after execute()
dbTiming.Stop();
return;
}
dbTiming.FirstFetch();
var reader = dataReader as ProfiledDbDataReader ??
new ProfiledDbDataReader(dataReader, this);
_inProgressDataReaders[reader] = dbTiming;
}