/**
* Trim the topology definition for storing into state manager. This is because the user generated
* spouts and bolts might be huge.
*
* @return trimmed topology
*/
public TopologyAPI.Topology trimTopology(TopologyAPI.Topology topology) {
// create a copy of the topology physical plan
TopologyAPI.Topology.Builder builder = TopologyAPI.Topology.newBuilder().mergeFrom(topology);
// clear the state of user spout java objects - which can be potentially huge
for (TopologyAPI.Spout.Builder spout : builder.getSpoutsBuilderList()) {
spout.getCompBuilder().clearJavaObject();
}
// clear the state of user spout java objects - which can be potentially huge
for (TopologyAPI.Bolt.Builder bolt : builder.getBoltsBuilderList()) {
bolt.getCompBuilder().clearJavaObject();
}
return builder.build();
}
public void dump(TopologyAPI.Topology.Builder bldr) {
TopologyAPI.Spout.Builder spoutBldr = TopologyAPI.Spout.newBuilder();
TopologyAPI.Component.Builder compBldr = TopologyAPI.Component.newBuilder();
super.dump(compBldr);
spoutBldr.setComp(compBldr);
Map<String, TopologyAPI.StreamSchema.Builder> outs = output.getFieldsDeclaration();
for (Map.Entry<String, TopologyAPI.StreamSchema.Builder> entry : outs.entrySet()) {
TopologyAPI.OutputStream.Builder obldr = TopologyAPI.OutputStream.newBuilder();
TopologyAPI.StreamId.Builder sbldr = TopologyAPI.StreamId.newBuilder();
sbldr.setId(entry.getKey());
sbldr.setComponentName(getName());
obldr.setStream(sbldr);
obldr.setSchema(entry.getValue());
spoutBldr.addOutputs(obldr);
}
bldr.addSpouts(spoutBldr);
}