[Repast-interest] Running groovy projects programmatically

[David M. <dav...@ya...>]

My goal is to run Repast model programmatically. To this end I use a class 
MPCRunner extends AbstractRunner;
with the following members:
private RunEnvironmentBuilder runEnvironmentBuilder;
protected Controller controller;
private Schedule schedule;
and the following basic functionalities: 
public void load(File scenarioDir)  {
BatchScenarioLoader loader = new BatchScenarioLoader(scenarioDir);
ControllerRegistry registry = loader.load(runEnvironmentBuilder);
controller.setControllerRegistry(registry);
controller.batchInitialize();
controller.runParameterSetters(loader.getParameters()); } 
public void runInitialize() {
             controller.runInitialize(null);
    schedule = (Schedule) RunState.getInstance().getScheduleRegistry()
.getModelSchedule();}
public void step() {
schedule.execute();}

Which are called in that order in the main program:
MPCRunner mpc = new MPCRunner(XmlCheckpoint.class);
mpc.load(file);
mpc.runInitialize();
mpc.step();

I have been working with the sample models that comes with Repast, there are 11 
java-based models, 1 groovy-based model and 1 Relogo (which also means groovy) 
model. 
I can successfully execute the above three steps for all the java-based models, 
but fail for both groovy-based models, FlowZombies and Zombies. 
Below I pasted the error stack traces.
There must be something I have to do differently with these models, isn't 
there? 
Thanks

David

Here are the error stack traces.  Note that both start essentially 
with MPCRunner.java:101, which is:    controller.runInitialize(null);
1. FlowZombies:
java.lang.NullPointerException
at 
repast.simphony.engine.controller.WatcherControllerAction.runInitialize(WatcherControllerAction.java:50)

at 
repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:179)

at 
repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:1)

at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:301)
at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:304)
at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:304)
at 
repast.simphony.util.collections.NaryTree.preOrderTraversal(NaryTree.java:297)
at 
repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:177)

at 
repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:335)

at repast.simphony.mpc.MPCRunner.runInitialize(MPCRunner.java:101) 
at repast.simphony.mpc.test.MPCTestMain.run(MPCTestMain.java:56)
at repast.simphony.mpc.test.MPCTestMain.main(MPCTestMain.java:43)

Here is WatcherControllerAction.java:50      for (Object obj : 
context.getContextListeners()) 
I debugged it, context = null;

2. Zombies:
java.lang.NullPointerException
at repast.simphony.relogo.factories.LinkFactory.<init>(LinkFactory.java:52)
at repast.simphony.relogo.factories.LinkFactory.<init>(LinkFactory.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at 
org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)

at 
org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)

at 
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:52)

at 
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190)

at 
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:198)

at zombies.context.SimBuilder.build(SimBuilder.groovy:32)
at 
repast.simphony.dataLoader.engine.ClassNameContextBuilder.build(ClassNameContextBuilder.java:41)

at 
repast.simphony.dataLoader.engine.DataLoaderControllerAction.runInitialize(DataLoaderControllerAction.java:48)

at 
repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:179)

at 
repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:1)

at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:301)
at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:304)
at 
repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:304)
at 
repast.simphony.util.collections.NaryTree.preOrderTraversal(NaryTree.java:297)
at 
repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:177)

at 
repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:335)

at repast.simphony.mpc.MPCRunner.runInitialize(MPCRunner.java:101)
at repast.simphony.mpc.test.MPCTestMain.run(MPCTestMain.java:57)
at repast.simphony.mpc.test.MPCTestMain.main(MPCTestMain.java:44)

Here is LinkFactory.java:51-52
this(dirLinkClass, undirLinkClass,
ReLogoImplementingClassesFinder.find(RSApplication.getRSApplicationInstance().getCurrentScenario(),BaseLink.class));

I debugged it:
RSApplication.getRSApplicationInstance() = null;