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Re: [Repast-interest] Running groovy projects programmatically
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From: Jonathan O. <xi...@gm...> - 2011-05-31 15:53:07
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Hi David,
Regarding the error you see in the ReLogo model, there was a bug based on a faulty assumption that's been fixed. It will be part of the next release but let me know if you'd like a workaround in the meantime.
Jonathan
On May 31, 2011, at 9:56 AM, David Makovoz wrote:
> 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;
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