Re: Java--Passing selector arguments to EZGraph

[Marcus G. Daniels]

>>>>> "TW" == Tom Wainwright <address@hidden> writes:

TW> I need to use a method with an argument in an EZGraph call, and
TW> can't quite see how to do it in Java.  The idea is to have EZGraph
TW> call a method with a string argument used to select a particular
TW> data series from several options. 

Paul Johnson recently added a setUnsignedArg method that can be used
for most things (directly or indirectly).  It's in the current
javaswarm.dll/swarm.jar files at
ftp://ftp.swarm.org/pub/swarm/binaries/w32/latest.

Here's an example:

import swarm.Globals;
import swarm.simtoolsgui.GUISwarmImpl;
import swarm.defobj.Zone;
import swarm.activity.Activity;
import swarm.objectbase.Swarm;
import swarm.activity.Schedule;
import swarm.activity.ScheduleImpl;
import swarm.analysis.EZGraphImpl;
import swarm.analysis.EZGraph;
import swarm.analysis.EZSequence;
import swarm.Selector;
import java.util.LinkedList;
import java.util.List;

public class TestEZGraph extends GUISwarmImpl {
  EZSequence sequence, averagingSequence;
  

  class Agent {
    double value;

    Agent (double value) {
      this.value = value;
    }

    void newValue () {
      value = Globals.env.uniformDblRand.getDoubleWithMin$withMax (.1, 1);
    }

    public double getAgentValue (int scale) {
      return value * scale;
    }
  }
 
  List list;
  Schedule schedule;
  EZGraph ezgraph;
  Agent standaloneAgent;

  TestEZGraph (Zone aZone) {
    super (aZone);
  }
  
  void addValueToList () {
    double v = Globals.env.uniformDblRand.getDoubleWithMin$withMax (.1, 1);

    list.add (new Agent (v));
  }

  public void step () {
    standaloneAgent.newValue ();
    addValueToList ();
    sequence.setUnsignedArg (Globals.env.getCurrentTime ());
    averagingSequence.setUnsignedArg (Globals.env.getCurrentTime () - 20);

    ezgraph.step ();
    getActionCache ().doTkEvents ();
  }

  public Object buildObjects () {
    super.buildObjects ();

    list = new LinkedList ();
    addValueToList ();

    standaloneAgent = new Agent (1.0);

    ezgraph = new EZGraphImpl (getZone (), "setUnsignedArg Demo",
                               "t", "prob.",
                               "ezgraph");
    try { 
      Selector sel = new Selector (Agent.class,
                                   "getAgentValue",
                                   false);
      
      sequence = 
        ezgraph.createSequence$withFeedFrom$andSelector ("standalone",
                                                         standaloneAgent,
                                                         sel);
      averagingSequence =
        ezgraph.createAverageSequence$withFeedFrom$andSelector ("av(list)",
                                                                list,
                                                                sel);
    } catch (Exception e) {
      e.printStackTrace (System.err);
      System.exit (1);
    }
    return this;
  }

  public Object buildActions () {
    super.buildActions ();
   
    schedule = new ScheduleImpl (getZone (), 1);

    try {
      Selector sel = new Selector (getClass (), "step", false);

      schedule.at$createActionTo$message (0, this, sel);
    } catch (Exception e) {
      e.printStackTrace (System.err);
      System.exit (1);
    }
    return this;
  }
  
  public Activity activateIn (Swarm swarmContext) {
    super.activateIn (swarmContext);

    schedule.activateIn (this);
    return getActivity ();
  }
  

  static void main (String []args) {
    Globals.env.initSwarm ("TestEZGraph", "0.0", "address@hidden", args);

    TestEZGraph ezgraphTest = new TestEZGraph (Globals.env.globalZone);

    ezgraphTest.buildObjects ();
    ezgraphTest.buildActions ();
    ezgraphTest.activateIn (null);

    ezgraphTest.go ();
  }
}

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