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package rba.tool.editor.validation
import com.google.common.collect.Maps
import com.google.inject.Inject
import java.util.Map
import org.eclipse.emf.ecore.EClass
import org.eclipse.emf.ecore.EObject
import org.eclipse.emf.ecore.EStructuralFeature
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.naming.QualifiedName
import org.eclipse.xtext.resource.IEObjectDescription
import org.eclipse.xtext.resource.IResourceDescriptionsProvider
import org.eclipse.xtext.resource.IResourceServiceProvider
import org.eclipse.xtext.service.OperationCanceledManager
import org.eclipse.xtext.util.CancelIndicator
import org.eclipse.xtext.util.SimpleAttributeResolver
import org.eclipse.xtext.validation.ValidationMessageAcceptor
import rba.core.RBACorePackage
import rba.tool.editor.messages.Messages
import rba.tool.editor.rbaEditorModel.RbaEditorModelPackage
import java.util.List
import java.util.Arrays
import rba.core.impl.ProjectImpl
class UniqueNameValidationHelper {
@Inject
private IResourceServiceProvider.Registry resourceServiceProviderRegistry = IResourceServiceProvider.Registry.INSTANCE;
@Inject
private IResourceDescriptionsProvider resourceDescriptionsProvider;
@Inject
private OperationCanceledManager operationCanceledManager = new OperationCanceledManager();
private static final List<String> RESTRICTED_NAMES = Arrays.asList(
"AnyAreasOfContent",
"AnyContentsOfArea",
"NullExpression"
);
private String NAMEDELEMENT_NAME_DUPLICATE = Messages.NAMEDELEMENT_NAME_DUPLICATE;
def public void checkUniqueNames(Resource resource, CancelIndicator cancelIndicator, ValidationMessageAcceptor acceptor) {
val resourceServiceProvider = resourceServiceProviderRegistry.getResourceServiceProvider(resource.getURI());
if(resourceServiceProvider === null) {
return;
}
val manager = resourceServiceProvider.getResourceDescriptionManager();
if(manager !== null) {
val description = manager.getResourceDescription(resource);
if(description !== null) {
val descriptions = description.getExportedObjects();
val currentIter = descriptions.iterator();
if(!currentIter.hasNext()) {
return;
}
val clusterToNames = Maps.newHashMap();
val containerManager = resourceServiceProvider.getContainerManager();
val resourceDescriptions = resourceDescriptionsProvider.getResourceDescriptions(resource.getResourceSet());
for (container : containerManager.getVisibleContainers(description, resourceDescriptions)) {
val siblingsResourceDescriptions = container.resourceDescriptions.filter(r|r.URI.toString !== description.URI.toString);
val siblingsObjectDescriptions = siblingsResourceDescriptions.map(srd|srd.exportedObjects.filter[obj|
obj.EClass !== RBACorePackage.Literals.TAG && obj.EClass !== RbaEditorModelPackage.Literals.CTAG
]).flatten;
for (siblingsObjectDescription : siblingsObjectDescriptions) {
initDescriptionForDuplicatedName(siblingsObjectDescription, clusterToNames, acceptor);
}
}
while(currentIter.hasNext()) {
val objectDescription = currentIter.next();
checkDescriptionForDuplicatedName(objectDescription, clusterToNames, acceptor);
operationCanceledManager.checkCanceled(cancelIndicator);
}
}
}
}
def protected void initDescriptionForDuplicatedName(IEObjectDescription description, Map<EClass, Map<QualifiedName, IEObjectDescription>> clusterTypeToName, ValidationMessageAcceptor acceptor) {
val object = description.getEObjectOrProxy();
val eClass = object.eClass();
val qualifiedName = description.getName();
val clusterType = getAssociatedClusterType(eClass);
if(clusterType === null) {
return;
}
val nameToDescription = clusterTypeToName.get(clusterType);
if(nameToDescription === null) {
val newNameToDescription = Maps.newHashMap();
newNameToDescription.put(qualifiedName, description);
clusterTypeToName.put(clusterType, newNameToDescription);
} else if(!nameToDescription.containsKey(qualifiedName)) {
nameToDescription.put(qualifiedName, description);
}
}
def protected void checkDescriptionForDuplicatedName(IEObjectDescription description, Map<EClass, Map<QualifiedName, IEObjectDescription>> clusterTypeToName, ValidationMessageAcceptor acceptor) {
val object = description.getEObjectOrProxy();
val eClass = object.eClass();
if(eClass === RBACorePackage.Literals.VARIABLE) {
return;
}
if(eClass === RBACorePackage.Literals.TAG || eClass === RbaEditorModelPackage.Literals.CTAG) {
return;
}
val qualifiedName = description.getName();
val clusterType = getAssociatedClusterType(eClass);
if(clusterType === null) {
return;
}
val nameToDescription = clusterTypeToName.get(clusterType);
if(nameToDescription === null) {
val newNameToDescription = Maps.newHashMap();
newNameToDescription.put(qualifiedName, description);
clusterTypeToName.put(clusterType, newNameToDescription);
} else {
if(nameToDescription.containsKey(qualifiedName)) {
val prevDescription = nameToDescription.get(qualifiedName);
if(prevDescription !== null && !(prevDescription.getEObjectOrProxy() instanceof ProjectImpl)) {
createDuplicateNameError(prevDescription, clusterType, acceptor);
nameToDescription.put(qualifiedName, null);
}
createDuplicateNameError(description, clusterType, acceptor);
} else if(isNamingRestricted(qualifiedName)){
createNamingRestrictionError(description, clusterType, acceptor, qualifiedName)
} else {
nameToDescription.put(qualifiedName, description);
}
}
}
def protected void createDuplicateNameError(IEObjectDescription description, EClass clusterType, ValidationMessageAcceptor acceptor) {
val object = description.getEObjectOrProxy();
if(object.eIsProxy) {
return;
}
val feature = getNameFeature(object);
acceptor.acceptError(getDuplicateNameErrorMessage(description), object, feature, ValidationMessageAcceptor.INSIGNIFICANT_INDEX, getErrorCode());
}
def String getDuplicateNameErrorMessage(IEObjectDescription description) {
val qualifiedName = description.getQualifiedName().toString();
val shortName = String.valueOf(if(qualifiedName !== null && qualifiedName !== "") qualifiedName else "<unnamed>");
return String.format(NAMEDELEMENT_NAME_DUPLICATE, shortName);
}
def protected boolean isContainerInformationHelpful(IEObjectDescription description, EObject container, String containerTypeLabel, EStructuralFeature containerNameFeature) {
return containerTypeLabel !== null && containerNameFeature !== null;
}
def protected boolean isContainerInformationHelpful(IEObjectDescription description, String shortName) {
return true;
}
def protected EObject getContainerForErrorMessage(EObject object) {
return object.eContainer();
}
def protected String getTypeLabel(EClass eClass) {
return eClass.getName();
}
def protected EStructuralFeature getNameFeature(EObject object) {
return SimpleAttributeResolver.NAME_RESOLVER.getAttribute(object);
}
def protected EClass getAssociatedClusterType(EClass eClass) {
val superTypes = eClass.getESuperTypes();
if(superTypes.isEmpty()) {
return null;
}
if(superTypes.contains(RBACorePackage.Literals.NAMED_ELEMENT)) {
return RBACorePackage.Literals.NAMED_ELEMENT;
}
return getAssociatedClusterType(superTypes.get(0));
}
def protected String getErrorCode() {
return null;
}
def protected boolean isNamingRestricted(QualifiedName qualifiedName){
if ( qualifiedName.getSegments().size() > 0 ) {
val i = qualifiedName.getSegments().size() - 1;
if( RESTRICTED_NAMES.contains(qualifiedName.getSegments().get(i).toString) ) {
return true;
}
}
return false;
}
def protected void createNamingRestrictionError(IEObjectDescription description, EClass clusterType,
ValidationMessageAcceptor acceptor, QualifiedName qualifiedName) {
val object = description.getEObjectOrProxy();
if (object.eIsProxy) {
return;
}
val feature = getNameFeature(object);
val errorMessage = String.format(Messages.NAME_RESTRICTION, object.eClass.name, qualifiedName.toString)
acceptor.acceptError(errorMessage, object, feature, ValidationMessageAcceptor.INSIGNIFICANT_INDEX,getErrorCode());
}
}
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