Exemple #1
0
  /**
   * 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();
  }
Exemple #2
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  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);
  }