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package org.etsi.mts.tdl.graphical.sirius.actions;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.sirius.tools.api.ui.IExternalJavaAction;
import org.eclipse.ui.statushandlers.StatusManager;
import org.eclipse.xtext.nodemodel.INode;
import org.eclipse.xtext.parser.IParseResult;
import org.eclipse.xtext.resource.IResourceFactory;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.resource.XtextResourceSet;
import org.etsi.mts.tdl.Assertion;
import org.etsi.mts.tdl.Assignment;
import org.etsi.mts.tdl.Block;
import org.etsi.mts.tdl.BoundedLoopBehaviour;
import org.etsi.mts.tdl.DataUse;
import org.etsi.mts.tdl.LocalExpression;
import org.etsi.mts.tdl.MemberAssignment;
import org.etsi.mts.tdl.Message;
import org.etsi.mts.tdl.PeriodicBehaviour;
import org.etsi.mts.tdl.StaticDataUse;
import org.etsi.mts.tdl.TimeConstraint;
import org.etsi.mts.tdl.TimeOperation;
import org.etsi.mts.tdl.TimerStart;
import org.etsi.mts.tdl.tdlFactory;
import org.etsi.mts.tdl.tdlPackage;
import org.etsi.mts.tdl.graphical.labels.DataStandaloneSetup;
import org.etsi.mts.tdl.graphical.labels.parser.RuleBasedDataParser;
import org.etsi.mts.tdl.graphical.viewpoint.Activator;
import com.google.inject.Injector;
public class ParseAction implements IExternalJavaAction {
@Override
public void execute(Collection<? extends EObject> selections, Map<String, Object> parameters) {
EObject element = (EObject) parameters.get("element");
String newValue = (String) parameters.get("newValue");
try {
DataUse value = (DataUse) parse(element.eResource().getURI(), newValue, "DataUse");
if (value != null) {
EClass type = element.eClass();
List<LocalExpression> localExpressions = null;
switch (type.getClassifierID()) {
case tdlPackage.MEMBER_ASSIGNMENT:
((MemberAssignment)element).setMemberSpec((StaticDataUse) value);
break;
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case tdlPackage.MESSAGE:
((Message)element).setArgument(value);
break;
case tdlPackage.BLOCK:
localExpressions = ((Block)element).getGuard();
case tdlPackage.BOUNDED_LOOP_BEHAVIOUR:
if (element instanceof BoundedLoopBehaviour)
localExpressions = ((BoundedLoopBehaviour) element).getNumIteration();
case tdlPackage.PERIODIC_BEHAVIOUR:
if (element instanceof PeriodicBehaviour)
localExpressions = ((PeriodicBehaviour) element).getPeriod();
LocalExpression localExp;
if (localExpressions.isEmpty())
localExpressions.add(localExp = tdlFactory.eINSTANCE.createLocalExpression());
else
localExp = localExpressions.get(0);
localExp.setExpression(value);
break;
case tdlPackage.WAIT:
case tdlPackage.QUIESCENCE:
((TimeOperation)element).setPeriod(value);
break;
case tdlPackage.TIMER_START:
((TimerStart)element).setPeriod(value);
break;
case tdlPackage.TIME_CONSTRAINT:
((TimeConstraint)element).setTimeConstraintExpression(value);
break;
case tdlPackage.ASSIGNMENT:
((Assignment)element).setExpression(value);
break;
case tdlPackage.ASSERTION:
((Assertion)element).setCondition(value);
break;
}
}
} catch (IOException e) {
StatusManager.getManager().handle(new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getMessage()));
}
}
@Override
public boolean canExecute(Collection<? extends EObject> selections) {
return true;
}
private EObject parse(URI uri, String text, String rule) throws IOException {
Injector xtextInjector = new DataStandaloneSetup().createInjectorAndDoEMFRegistration();
IResourceFactory resourceFactory = xtextInjector.getInstance(IResourceFactory.class);
XtextResourceSet rs = xtextInjector.getInstance(XtextResourceSet.class);
rs.setClasspathURIContext(getClass());
XtextResource xr = (XtextResource)resourceFactory.createResource(URI.createURI(uri.toString()));
rs.getResources().add(xr);
RuleBasedDataParser parser = (RuleBasedDataParser)xr.getParser();
parser.setDefaultRuleName(rule);
xr.reparse(text);
List<EObject> contents = xr.getContents();
if (contents.isEmpty()) {
IParseResult result = xr.getParseResult();
StringBuilder errorMessage = new StringBuilder();
for (INode err: result.getSyntaxErrors()) {
errorMessage.append(err.getSyntaxErrorMessage().getMessage());
errorMessage.append(System.getProperty("line.separator"));
}
StatusManager.getManager().handle(new Status(IStatus.ERROR, Activator.PLUGIN_ID, errorMessage.toString()),
StatusManager.SHOW);
return null;
}
//Resolve cross references using linker
EObject element = contents.get(0);
EcoreUtil.resolveAll(xr);
EObject resolved = contents.get(0);
if (!resolved.eClass().isInstance(element))
//If linker replaced root element, resolve the new element
EcoreUtil.resolveAll(xr);
return resolved;
}
}