public void TestFlow()
{
// top-k for 3
var spec = new CountMinSketchSpec();
spec.HashesSpec = TestCountMinSketchStateHashes.DefaultSpec;
spec.TopkSpec = 3;
spec.Agent = new CountMinSketchAgentStringUTF16();
var state = CountMinSketchState.MakeState(spec);
UpdateAssert(state, "a", "a=1");
UpdateAssert(state, "b", "a=1,b=1");
UpdateAssert(state, "a", "a=2,b=1");
UpdateAssert(state, "c", "a=2,b=1,c=1");
UpdateAssert(state, "d", "a=2,b=1,c=1");
UpdateAssert(state, "c", "a=2,b=1,c=2");
UpdateAssert(state, "a", "a=3,b=1,c=2");
UpdateAssert(state, "d", "a=3,d=2,c=2");
UpdateAssert(state, "e", "a=3,d=2,c=2");
UpdateAssert(state, "e", "a=3,d=2,c=2");
UpdateAssert(state, "e", "a=3,e=3,c=2");
UpdateAssert(state, "d", "a=3,e=3,d=3");
UpdateAssert(state, "c", "a=3,e=3,d=3");
UpdateAssert(state, "c", "a=3,e=3,c=4");
}
public static CountMinSketchState MakeState(CountMinSketchSpec spec)
{
var hashes = CountMinSketchStateHashes.MakeState(spec.HashesSpec);
CountMinSketchStateTopk topk = null;
if (spec.TopkSpec != null && spec.TopkSpec > 0) {
topk = new CountMinSketchStateTopk(spec.TopkSpec.Value);
}
return new CountMinSketchState(hashes, topk);
}