topology-grapher.generator

{:topology <the application id for this topology, i.e. its consumer group name> :id <a unique UUID for this topology, deterministic from its name> :graphs <a list of all the stream graphs in the topology>}

Where each stream graph is:

{:type :stream :name <the name that kafka gives this stream> :id <a unique UUID for the stream, deterministic from the encosing topology and its stream name> :nodes <a list of all the nodes in the graph> :edges <a list of all the edges in the graph>}

... And edges and nodes are represented as:

{:id <a deterministic UUID for the node> :name <the name as assigned by kafka> :type <the type - processor, store, topic &c.>}

{:from <the :name of the node the edge comes from> :from-id <the :id of the node the edge comes from> :to <the :name of the node the edge goes to> :to-id <the :id of the node the edge goes to>}

All Ids are generated using v5 UUIDs, and are guaranteed globally unique where objects are distinct, and guaranteed globally equal where objects are the same.

Returns a map of all the streams within a topology. the passed in topology
object must have a `describe` method, meaning it is one of:
Kafka >= 1.1 : https://kafka.apache.org/21/javadoc/org/apache/kafka/streams/Topology.html
Kafka <  1.1 : https://kafka.apache.org/10/javadoc/org/apache/kafka/streams/processor/TopologyBuilder.html#internalTopologyBuilder
Both work the same regards the graphing.

The data reurned is in the form:

{:topology          <the application id for this topology, i.e. its consumer group name>
:id                <a unique UUID for this topology, deterministic from its name>
:graphs            <a list of all the stream graphs in the topology>}

Where each stream graph is:

{:type :stream
:name  <the name that kafka gives this stream>
:id    <a unique UUID for the stream, deterministic from the encosing topology and its stream name>
:nodes <a list of all the nodes in the graph>
:edges <a list of all the edges in the graph>}

... And edges and nodes are represented as:

{:id   <a deterministic UUID for the node>
:name <the name as assigned by kafka>
:type <the type - processor, store, topic &c.>}

{:from    <the :name of the node the edge comes from>
:from-id <the :id of the node the edge comes from>
:to      <the :name of the node the edge goes to>
:to-id   <the :id of the node the edge goes to>}

All Ids are generated using v5 UUIDs, and are guaranteed globally unique where objects are
distinct, and guaranteed globally equal where objects are the same.

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