public void Should_capture_all_of_the_nodes_involved()
{
var channel = new ConsumerChannel<int>(new SynchronousFiber(), x => { });
var filter = new FilterChannel<int>(new SynchronousFiber(), channel, x => true);
new ChannelVisitor().Visit(filter);
}
public void Should_capture_all_of_the_nodes_involved()
{
var channel = new ConsumerChannel <int>(new SynchronousFiber(), x => { });
var filter = new FilterChannel <int>(new SynchronousFiber(), channel, x => true);
new ChannelVisitor().Visit(filter);
}
protected override Channel <T> Visitor <T>(FilterChannel <T> channel)
{
_current = GetVertex(channel.GetHashCode(), () => "Filter", typeof(FilterChannel <T>), typeof(T));
if (_stack.Count > 0)
{
_edges.Add(new Edge(_stack.Peek(), _current, _current.TargetType.Name));
}
return(WithVertex(() => base.Visitor(channel)));
}
/* Use this method to do the calculations for a filter that can be based on one or more
* channels of available and accessible projects.
* begin: Start of the current time period.
* end: End of the current time period.
* data: Contains data of the preselected projects.
* result: The resulting double array with length matching the time period and sample rate.
*/
public override void Filter(DateTime begin, DateTime end, FilterChannel filter, DataProvider dataProvider, double[] result)
{
/* This dataset has the same length as the result array. */
var t1 = dataProvider.IN_MEMORY_TEST_ACCESSIBLE.T1.DATASET_1_s_mean;
for (int i = 0; i < result.Length; i++)
{
/* Example: Square each value. */
result[i] = Math.Pow(t1[i], 2);
/* Example: Add +1 to each value (to demonstrate how to use shared code). */
// result[i] = Shared.AddOne(result[i]);
}
}
public static Guid ToGuid(this FilterChannel filterChannel, CodeDefinition codeDefinition)
{
// With the filter extension, channels are produced dynamically, so there
// is no way to generate an ID once and store it somewhere. Therefore the
// ID must be generated each time the filter code is instantiated. To avoid
// having ever changing IDs, the ID is effectively a good hash code based
// on the project ID and channel name. In the end this means that the
// channel name determines the ID. And so renaming a channel means changing
// the ID.
var value = $"({codeDefinition.Id}) {filterChannel.ProjectId}/{filterChannel.ChannelName}";
var md5 = MD5.Create(); // compute hash is not thread safe!
var hash = md5.ComputeHash(Encoding.UTF8.GetBytes(value)); //
return(new Guid(hash));
}
public void Should_filter_out_unwanted_messages()
{
var update = new UserUpdate {LastActivity = DateTime.Now - 5.Minutes()};
Fiber fiber = new SynchronousFiber();
var future = new Future<UserUpdate>();
var filter = new FilterChannel<UserUpdate>(fiber, future, x => x.LastActivity > DateTime.Now);
Channel<UserUpdate> channel = new PublishSubscribeChannel<UserUpdate>(fiber, new[] {filter});
channel.Send(update);
Assert.IsFalse(future.WaitUntilCompleted(1.Seconds()));
}
public void Should_filter_out_unwanted_messages()
{
var update = new UserUpdate {
LastActivity = DateTime.Now - 5.Minutes()
};
Fiber fiber = new SynchronousFiber();
var future = new FutureChannel <UserUpdate>();
var filter = new FilterChannel <UserUpdate>(fiber, future, x => x.LastActivity > DateTime.Now);
Channel <UserUpdate> channel = new BroadcastChannel <UserUpdate>(new[] { filter });
channel.Send(update);
Assert.IsFalse(future.WaitUntilCompleted(1.Seconds()));
}
protected bool ShouldDisplay(FilterChannel channel, string msg)
{
Regex regexToUse = null;
// Convert to bool for XOR later. Whitelist = 0, Blacklist = 1
bool filterMode = Settings.FilterMode == Settings.FilterModeEnum.Blacklist ? true : false;
switch (channel)
{
case FilterChannel.Chat: regexToUse = Settings.ChatFilter; break;
case FilterChannel.Debug: regexToUse = Settings.DebugFilter; break;
}
if (regexToUse != null)
{
// IsMatch and white/blacklist result can be represented using XOR
// e.g. matched(true) ^ blacklist(true) => shouldn't log(false)
return(regexToUse.IsMatch(msg) ^ filterMode);
}
else
{
return(true);
}
}
protected virtual Channel <T> Visitor <T>(FilterChannel <T> channel)
{
Visit(channel.Output);
return(channel);
}
protected override Channel <T> Visitor <T>(FilterChannel <T> channel)
{
Trace.WriteLine("FilterChannel<{0}>".FormatWith(typeof(T).Name));
return(base.Visitor(channel));
}
public abstract void Filter(DateTime begin, DateTime end, FilterChannel filterChannel, Func <string, string, string, DateTime, DateTime, double[]> getData, double[] result);
/* Use this method to do the calculations for a filter */
public override void Filter(DateTime begin, DateTime end, FilterChannel filter, DataProvider dataProvider, double[] result)
{
}