org.eclipse.osbp.xtext.menu/xtend-gen/org/eclipse/osbp/xtext/menu/validation/MenuDslValidator.java

/**
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * 
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License 2.0
 *  which accompanies this distribution, and is available at
 *  https://www.eclipse.org/legal/epl-2.0/
 * 
 *  SPDX-License-Identifier: EPL-2.0
 * 
 *  Contributors:
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 * 
 *  This copyright notice shows up in the generated Java code
 */
package org.eclipse.osbp.xtext.menu.validation;

import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;
import org.eclipse.emf.common.util.EList;
import org.eclipse.osbp.xtext.menu.MenuCategory;
import org.eclipse.osbp.xtext.menu.MenuDslPackage;
import org.eclipse.osbp.xtext.menu.MenuTree;
import org.eclipse.osbp.xtext.menu.validation.AbstractMenuDslValidator;
import org.eclipse.xtext.validation.Check;

/**
 * Custom validation rules.
 * 
 * see http://www.eclipse.org/Xtext/documentation.html#validation
 */
@SuppressWarnings("all")
public class MenuDslValidator extends AbstractMenuDslValidator {
  private Set<MenuTree> findDuplicates(final Collection<MenuTree> list) {
    LinkedHashSet<MenuTree> duplicates = new LinkedHashSet<MenuTree>();
    HashSet<String> uniques = new HashSet<String>();
    for (final MenuTree tree : list) {
      boolean _add = uniques.add(tree.getName());
      boolean _not = (!_add);
      if (_not) {
        duplicates.add(tree);
      }
    }
    return duplicates;
  }
  
  @Check
  public void checkMenuTreeDuplicates(final MenuCategory menu) {
    Set<MenuTree> duplicates = this.findDuplicates(menu.getTrees());
    int idx = 0;
    EList<MenuTree> _trees = menu.getTrees();
    for (final MenuTree menuTree : _trees) {
      {
        boolean _contains = duplicates.contains(menuTree);
        if (_contains) {
          this.error("Duplicated menu tree names are not allowed in a menu category definition", MenuDslPackage.Literals.MENU_CATEGORY__TREES, idx);
        }
        idx++;
      }
    }
  }
}