EntitiesValidator.java

/**
 * generated by Xtext
 */
package org.example.entities.validation;

import com.google.common.base.Objects;
import java.util.HashSet;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.xtext.validation.Check;
import org.eclipse.xtext.xbase.lib.CollectionLiterals;
import org.example.entities.entities.Attribute;
import org.example.entities.entities.EntitiesPackage;
import org.example.entities.entities.Entity;
import org.example.entities.validation.AbstractEntitiesValidator;

/**
 * Custom validation rules.
 * 
 * see http://www.eclipse.org/Xtext/documentation.html#validation
 */
@SuppressWarnings("all")
public class EntitiesValidator extends AbstractEntitiesValidator {
  public final static String HIERARCHY_CYCLE = "org.example.entities.HierarchyCycle";
  
  public final static String INVALID_ENTITY_NAME = "org.example.entities.InvalidEntityName";
  
  public final static String INVALID_ATTRIBUTE_NAME = "org.example.entities.InvalidAttributeName";
  
  @Check
  public void checkNoCycleInEntityHierarchy(final Entity entity) {
    Entity _superType = entity.getSuperType();
    boolean _equals = Objects.equal(_superType, null);
    if (_equals) {
      return;
    }
    final HashSet<Entity> visitedEntities = CollectionLiterals.<Entity>newHashSet();
    visitedEntities.add(entity);
    Entity current = entity.getSuperType();
    while ((!Objects.equal(current, null))) {
      {
        boolean _contains = visitedEntities.contains(current);
        if (_contains) {
          String _name = current.getName();
          String _plus = ("cycle in hierarchy of entity \'" + _name);
          String _plus_1 = (_plus + "\'");
          EReference _entity_SuperType = EntitiesPackage.eINSTANCE.getEntity_SuperType();
          Entity _superType_1 = current.getSuperType();
          String _name_1 = _superType_1.getName();
          this.error(_plus_1, _entity_SuperType, 
            EntitiesValidator.HIERARCHY_CYCLE, _name_1);
          return;
        }
        visitedEntities.add(current);
        Entity _superType_2 = current.getSuperType();
        current = _superType_2;
      }
    }
  }
  
  @Check
  public void checkEntityNameStartsWithCapital(final Entity entity) {
    String _name = entity.getName();
    char _charAt = _name.charAt(0);
    boolean _isLowerCase = Character.isLowerCase(_charAt);
    if (_isLowerCase) {
      EAttribute _entity_Name = EntitiesPackage.eINSTANCE.getEntity_Name();
      String _name_1 = entity.getName();
      this.warning("Entity name should start with a capital", _entity_Name, 
        EntitiesValidator.INVALID_ENTITY_NAME, _name_1);
    }
  }
  
  @Check
  public void checkAttributeNameStartsWithLowercase(final Attribute attr) {
    String _name = attr.getName();
    char _charAt = _name.charAt(0);
    boolean _isUpperCase = Character.isUpperCase(_charAt);
    if (_isUpperCase) {
      EAttribute _attribute_Name = EntitiesPackage.eINSTANCE.getAttribute_Name();
      String _name_1 = attr.getName();
      this.warning("Attribute name should start with a lowercase", _attribute_Name, 
        EntitiesValidator.INVALID_ATTRIBUTE_NAME, _name_1);
    }
  }
}