public void TestStringStream_Observed_Mapped_Copy()
{
ReplaySubject <string> subject = new ReplaySubject <string>();
Stream <string> stream = new Stream <string>(subject.AsObservable());
subject.OnNext("1");
subject.OnNext("2");
subject.OnNext("3");
subject.OnNext("4");
subject.OnNext("5");
stream.Read();
stream.Read();
stream.Read();
stream.SetOffset(3);
// Add first mapping
IStream <string> mappedStream1 = stream.Map(s => "map1_" + s);
// Add second mapping
IStream <string> mappedStream2 = mappedStream1.Map(s => "map2_" + s);
// Add fanout
IStream <string> output = mappedStream2.Copy();
// read fanout and check all mappings are called
string result = output.Read();
Assert.AreEqual("map2_map1_4", result);
}
public void TestStringStream_Observed_Replay_Mapped_Copy_InterruptedSupply()
{
ReplaySubject <string> subject = new ReplaySubject <string>();
Stream <string> stream = new Stream <string>(subject.AsObservable());
int mappingsHit = 0;
IStream <string> mappedStream = stream.Map(s =>
{
Debug.WriteLine("mapping " + s);
mappingsHit++;
return("m" + s);
});
IStream <string> copyStream = mappedStream.Copy();
for (int i = 0; i < 100; i++)
{
subject.OnNext(i.ToString());
}
for (int i = 0; i < 50; i++)
{
Assert.AreEqual("m" + i, copyStream.Read());
}
Assert.AreEqual(50, mappingsHit);
for (int i = 100; i < 200; i++)
{
subject.OnNext(i.ToString());
}
for (int i = 50; i < 200; i++)
{
Assert.AreEqual("m" + i, copyStream.Read());
}
Assert.AreEqual(200, mappingsHit);
Assert.AreEqual(200, copyStream.Count());
}
public void TestStringStream_Observed_Replay_Mapped_Copy()
{
ReplaySubject <string> subject = new ReplaySubject <string>();
Stream <string> stream = new Stream <string>(subject.AsObservable());
IStream <int[]> mappedStream = stream.Map(s => new int[int.Parse(s)]);
IStream <int[]> copyStream = mappedStream.Copy();
subject.OnNext("1");
Assert.IsTrue(new int[1].SequenceEqual(copyStream.Read()));
subject.OnNext("2");
Assert.IsTrue(new int[2].SequenceEqual(copyStream.Read()));
Assert.AreEqual(2, copyStream.Count());
}
public void TestStringStream_Yielding_Mapped_Copy()
{
string[] source = { "1", "2", "3", "4", "5" };
Stream <string> stream = new Stream <string>(GetDataSourceYielding(source));
stream.Read();
stream.Read();
stream.Read();
stream.SetOffset(3);
// Add first mapping
IStream <string> mappedStream1 = stream.Map(s => "map1_" + s);
// Add second mapping
IStream <string> mappedStream2 = mappedStream1.Map(s => "map2_" + s);
// Add fanout
IStream <string> output = mappedStream2.Copy();
// read fanout and check all mappings are called
string result = output.Read();
Assert.AreEqual("map2_map1_4", result);
}
/// <summary>
/// Returns the encoded output stream of the underlying <see cref="IStream{T}"/>'s encoder.
/// </summary>
/// <returns>the encoded output stream.</returns>
public IStream <int[]> GetOutputStream()
{
if (IsTerminal())
{
throw new InvalidOperationException("Stream is already \"terminal\" (operated upon or empty)");
}
MultiEncoder encoder = (MultiEncoder)GetEncoder();
if (encoder == null)
{
throw new InvalidOperationException("setLocalParameters(Parameters) must be called before calling this method.");
}
// Protect outputStream formation and creation of "fan out" also make sure
// that no other thread is trying to update the fan out lists
IStream <int[]> retVal = null;
try
{
System.Threading.Monitor.Enter(_criticalAccessLock);
string[] fieldNames = GetFieldNames();
FieldMetaType[] fieldTypes = GetFieldTypes();
if (outputStream == null)
{
if (!indexFieldMap.Any())
{
for (int i = 0; i < fieldNames.Length; i++)
{
indexFieldMap.Add(fieldNames[i], i);
}
}
// NOTE: The "inputMap" here is a special local implementation
// of the "Map" interface, overridden so that we can access
// the keys directly (without hashing). This map is only used
// for this use case so it is ok to use this optimization as
// a convenience.
if (inputMap == null)
{
inputMap = new InputMap(this);
inputMap.fTypes = fieldTypes;
}
bool isParallel = @delegate.GetInputStream().IsParallel();
output = new List <int[]>();
IMetaStream inputStream = @delegate.GetInputStream();
IStream <int[]> mappedInputStream = ((IMetaStream <string[]>)inputStream).Map(i =>
{
//Debug.WriteLine(">> Calling HTM Sensor mapping");
string[] arr = i;
inputMap.arr = arr;
return(Input(arr, fieldNames, fieldTypes, output, isParallel));
});
outputStream = mappedInputStream;
//mainIterator = outputStream.GetEnumerator();
}
//LinkedList<int[]> l = new LinkedList<int[]>();
//fanOuts.Add(l);
//ObjectStreamCopier copy = new ObjectStreamCopier(this, l);
//Copy copy = new Copy(this, l);
//copy.Reset();
//retVal = new Stream<int[]>(l, copy, outputStream.GetStreamState());
retVal = outputStream.Copy();
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
System.Threading.Monitor.Exit(_criticalAccessLock);
}
return(retVal);
}
public FilterchainOutput Copy()
{
return(new FilterchainOutput(Owner, Stream.Copy()));
}
