private IKStream <K, V>[] DoBranch(string named = null, params Func <K, V, bool>[] predicates)
{
var namedInternal = new Named(named);
if (predicates.Length == 0)
{
throw new ArgumentException("branch() requires at least one predicate");
}
String branchName = namedInternal.OrElseGenerateWithPrefix(this.builder, BRANCH_NAME);
String[] childNames = new String[predicates.Length];
for (int i = 0; i < predicates.Length; i++)
{
childNames[i] = namedInternal.SuffixWithOrElseGet($"predicate-{i}", this.builder, BRANCHCHILD_NAME);
}
ProcessorParameters <K, V> processorParameters = new ProcessorParameters <K, V>(new KStreamBranch <K, V>(predicates, childNames), branchName);
ProcessorGraphNode <K, V> branchNode = new ProcessorGraphNode <K, V>(branchName, processorParameters);
this.builder.AddGraphNode(node, branchNode);
IKStream <K, V>[] branchChildren = new IKStream <K, V> [predicates.Length];
for (int i = 0; i < predicates.Length; i++)
{
ProcessorParameters <K, V> innerProcessorParameters = new ProcessorParameters <K, V>(new PassThrough <K, V>(), childNames[i]);
ProcessorGraphNode <K, V> branchChildNode = new ProcessorGraphNode <K, V>(childNames[i], innerProcessorParameters);
builder.AddGraphNode(branchNode, branchChildNode);
branchChildren[i] = new KStream <K, V>(childNames[i], this.keySerdes, this.valueSerdes, setSourceNodes, branchChildNode, builder);
}
return(branchChildren);
}
public KStream <K, VR> Join <K, V, V0, VR>(
KStream <K, V> joinLeft,
KStream <K, V0> joinRight,
IValueJoiner <V, V0, VR> joiner,
JoinWindowOptions windows,
Joined <K, V, V0> joined)
{
var named = new Named(joined.Name);
var joinThisSuffix = rightOuter ? "-outer-this-join" : "-this-join";
var joinOtherSuffix = leftOuter ? "-outer-other-join" : "-other-join";
var thisWindowStreamProcessorName = named.SuffixWithOrElseGet("-this-windowed", builder, KStream.WINDOWED_NAME);
var otherWindowStreamProcessorName = named.SuffixWithOrElseGet("-other-windowed", builder, KStream.WINDOWED_NAME);
var joinThisGeneratedName = rightOuter ? builder.NewProcessorName(KStream.OUTERTHIS_NAME) : builder.NewProcessorName(KStream.JOINTHIS_NAME);
var joinOtherGeneratedName = leftOuter ? builder.NewProcessorName(KStream.OUTEROTHER_NAME) : builder.NewProcessorName(KStream.JOINOTHER_NAME);
var joinThisName = named.SuffixWithOrElseGet(joinThisSuffix, joinThisGeneratedName);
var joinOtherName = named.SuffixWithOrElseGet(joinOtherSuffix, joinOtherGeneratedName);
var joinMergeName = named.SuffixWithOrElseGet("-merge", builder, KStream.MERGE_NAME);
StreamGraphNode thisStreamsGraphNode = joinLeft.Node;
StreamGraphNode otherStreamsGraphNode = joinRight.Node;
var userProvidedBaseStoreName = joined.Name; // TODO : renamed, and create a StreamJoined DTO
// TODO TO FINISH
return(null);
}
internal KStream <K, V> Stream <K, V>(string topic, ConsumedInternal <K, V> consumed)
{
var name = new Named(consumed.Named).OrElseGenerateWithPrefix(this, KStream.SOURCE_NAME);
var node = new StreamSourceNode <K, V>(topic, name, consumed);
this.AddGraphNode(root, node);
KStream <K, V> stream = new KStream <K, V>(name, consumed.KeySerdes, consumed.ValueSerdes, new List <string> {
name
}, node, this);
return(stream);
}
private string Repartition(StoreBuilder storeBuilder)
{
if (repartitionRequired)
{
(string sourceName, RepartitionNode <K, V> repartNode) = KStream <K, V> .CreateRepartitionSource(grouped.Named ?? storeBuilder.Name, grouped.Key, grouped.Value, builder);
if (repartitionNode == null || grouped.Named == null)
{
repartitionNode = repartNode;
}
builder.AddGraphNode(node, repartitionNode);
node = repartitionNode;
return(sourceName);
}
return(name);
}
public KStream <K, VR> Join <K, V, V0, VR>(
KStream <K, V> joinLeft,
KStream <K, V0> joinRight,
IValueJoiner <V, V0, VR> joiner,
JoinWindowOptions windows,
StreamJoinProps <K, V, V0> joined)
{
var named = new Named(joined.Name);
var joinLeftSuffix = rightOuter ? "-outer-this-join" : "-this-join";
var joinRightSuffix = leftOuter ? "-outer-other-join" : "-other-join";
var leftWindowStreamProcessorName = named.SuffixWithOrElseGet("-this-windowed", builder, KStream.WINDOWED_NAME);
var rightWindowStreamProcessorName = named.SuffixWithOrElseGet("-other-windowed", builder, KStream.WINDOWED_NAME);
var joinLeftGeneratedName = rightOuter ? builder.NewProcessorName(KStream.OUTERTHIS_NAME) : builder.NewProcessorName(KStream.JOINTHIS_NAME);
var joinRightGeneratedName = leftOuter ? builder.NewProcessorName(KStream.OUTEROTHER_NAME) : builder.NewProcessorName(KStream.JOINOTHER_NAME);
var joinLeftName = named.SuffixWithOrElseGet(joinLeftSuffix, joinLeftGeneratedName);
var joinRightName = named.SuffixWithOrElseGet(joinRightSuffix, joinRightGeneratedName);
var joinMergeName = named.SuffixWithOrElseGet("-merge", builder, KStream.MERGE_NAME);
StreamGraphNode leftStreamsGraphNode = joinLeft.Node;
StreamGraphNode rightStreamsGraphNode = joinRight.Node;
var userProvidedBaseStoreName = joined.StoreName;
var leftStoreSupplier = joined.LeftStoreSupplier;
var rightStoreSupplier = joined.RightStoreSupplier;
StoreBuilder <WindowStore <K, V> > leftWindowStore;
StoreBuilder <WindowStore <K, V0> > rightWindowStore;
AssertUniqueStoreNames(leftStoreSupplier, rightStoreSupplier);
if (leftStoreSupplier == null)
{
var thisJoinStoreName = userProvidedBaseStoreName == null ? joinLeftGeneratedName : userProvidedBaseStoreName + joinLeftSuffix;
leftWindowStore = JoinWindowStoreBuilder(thisJoinStoreName, windows, joined.KeySerdes, joined.LeftValueSerdes);
}
else
{
AssertWindowSettings(leftStoreSupplier, windows);
leftWindowStore = Stores.WindowStoreBuilder(leftStoreSupplier, joined.KeySerdes, joined.LeftValueSerdes);
}
if (rightStoreSupplier == null)
{
var otherJoinStoreName = userProvidedBaseStoreName == null ? joinRightGeneratedName : userProvidedBaseStoreName + joinRightSuffix;
rightWindowStore = JoinWindowStoreBuilder(otherJoinStoreName, windows, joined.KeySerdes, joined.RightValueSerdes);
}
else
{
AssertWindowSettings(rightStoreSupplier, windows);
rightWindowStore = Stores.WindowStoreBuilder(rightStoreSupplier, joined.KeySerdes, joined.RightValueSerdes);
}
var leftStream = new KStreamJoinWindow <K, V>(leftWindowStore.Name);
var leftStreamParams = new ProcessorParameters <K, V>(leftStream, leftWindowStreamProcessorName);
var leftNode = new ProcessorGraphNode <K, V>(leftWindowStreamProcessorName, leftStreamParams);
builder.AddGraphNode(leftStreamsGraphNode, leftNode);
var rightStream = new KStreamJoinWindow <K, V0>(rightWindowStore.Name);
var rightStreamParams = new ProcessorParameters <K, V0>(rightStream, rightWindowStreamProcessorName);
var rightNode = new ProcessorGraphNode <K, V0>(rightWindowStreamProcessorName, rightStreamParams);
builder.AddGraphNode(rightStreamsGraphNode, rightNode);
var joinL = new KStreamKStreamJoin <K, V, V0, VR>(joinLeftName, rightWindowStore.Name, windows.beforeMs, windows.afterMs, joiner, leftOuter);
var joinLParams = new ProcessorParameters <K, V>(joinL, joinLeftName);
var joinR = new KStreamKStreamJoin <K, V0, V, VR>(joinRightName, leftWindowStore.Name, windows.beforeMs, windows.afterMs, joiner.Reverse(), rightOuter);
var joinRParams = new ProcessorParameters <K, V0>(joinR, joinRightName);
var merge = new PassThrough <K, VR>();
var mergeParams = new ProcessorParameters <K, VR>(merge, joinMergeName);
var joinNode = new StreamStreamJoinNode <K, V, V0, VR>(
joinMergeName,
joiner,
joinLParams,
joinRParams,
mergeParams,
leftStreamParams,
rightStreamParams,
leftWindowStore,
rightWindowStore,
joined);
builder.AddGraphNode(new List <StreamGraphNode> {
leftStreamsGraphNode, rightStreamsGraphNode
}, joinNode);
ISet <string> allSourceNodes = new HashSet <string>(joinLeft.SetSourceNodes);
allSourceNodes.AddRange(joinRight.SetSourceNodes);
return(new KStream <K, VR>(
joinMergeName,
joined.KeySerdes,
null,
allSourceNodes.ToList(),
joinNode,
builder));
}