bundles/org.simantics.modeling/src/org/simantics/modeling/SCLAction.java

   1 package org.simantics.modeling;
   2
   3 import org.simantics.Simantics;
   4 import org.simantics.db.ReadGraph;
   5 import org.simantics.db.Resource;
   6 import org.simantics.db.common.request.ResourceRead;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.db.layer0.adapter.ActionFactory;
   9 import org.simantics.db.layer0.variable.Variable;
  10 import org.simantics.db.layer0.variable.Variables;
  11 import org.simantics.scl.runtime.function.Function1;
  12 import org.slf4j.Logger;
  13 import org.slf4j.LoggerFactory;
  14
  15 public class SCLAction implements ActionFactory {
  16
  17         private static final Logger LOGGER = LoggerFactory.getLogger(SCLAction.class);
  18
  19         final private Resource rule;
  20
  21     public SCLAction(ReadGraph graph, Resource rule) throws DatabaseException {
  22         this.rule = rule;
  23     }
  24
  25     static class RuleFunctionRequest extends ResourceRead<Function1<Resource,Object>> {
  26
  27                 protected RuleFunctionRequest(Resource rule) {
  28                         super(rule);
  29                 }
  30
  31                 @Override
  32                 public Function1<Resource, Object> perform(ReadGraph graph) throws DatabaseException {
  33                 Variable ruleVariable = Variables.getVariable(graph, resource);
  34                 ModelingResources MOD = ModelingResources.getInstance(graph);
  35                 return ruleVariable.getPossiblePropertyValue(graph, MOD.SCLAction_action);
  36                 }
  37
  38     }
  39
  40     public static class SCLActionRunnable implements Runnable {
  41
  42         public Resource rule;
  43         public Resource target;
  44
  45         public SCLActionRunnable(Resource rule, Resource target) {
  46                 this.rule = rule;
  47                 this.target = target;
  48         }
  49
  50                 @Override
  51                 public void run() {
  52                         Resource resource = (Resource)target;
  53                         Simantics.getSession().markUndoPoint();
  54                         try {
  55                                 Function1<Resource, Object> function = Simantics.getSession().syncRequest(new RuleFunctionRequest(rule));
  56                                 function.apply(resource);
  57                         } catch (DatabaseException e) {
  58                                 LOGGER.error("SCLActionRunnable failed to request/apply RuleFunction {}", rule, e);
  59                         }
  60                 }
  61
  62     }
  63
  64         @Override
  65         public Runnable create(final Object target) {
  66                 return new SCLActionRunnable(rule, (Resource)target);
  67         }
  68
  69 }