| /* |
| * Copyright (c) 2015 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.cdo.common.model; |
| |
| import org.eclipse.emf.ecore.EAttribute; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * @author Eike Stepper |
| * @since 4.5 |
| */ |
| public enum CDOFeatureType |
| { |
| NONE |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| return false; |
| } |
| }, |
| |
| ALL |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| return true; |
| } |
| }, |
| |
| ATTRIBUTE |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| return feature instanceof EAttribute; |
| } |
| }, |
| |
| REFERENCE |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| return feature instanceof EReference; |
| } |
| }, |
| |
| CONTAINER |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| if (feature instanceof EReference) |
| { |
| EReference reference = (EReference)feature; |
| return reference.isContainer(); |
| } |
| |
| return false; |
| } |
| }, |
| |
| CONTAINMENT |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| if (feature instanceof EReference) |
| { |
| EReference reference = (EReference)feature; |
| return reference.isContainment(); |
| } |
| |
| return false; |
| } |
| }, |
| |
| XREF |
| { |
| @Override |
| public boolean matches(EStructuralFeature feature) |
| { |
| if (feature instanceof EReference) |
| { |
| EReference reference = (EReference)feature; |
| return !reference.isContainer() && !reference.isContainment(); |
| } |
| |
| return false; |
| } |
| }; |
| |
| public abstract boolean matches(EStructuralFeature feature); |
| |
| public static boolean matchesCombination(EStructuralFeature feature, Collection<CDOFeatureType> featureTypes) |
| { |
| if (featureTypes != null) |
| { |
| for (CDOFeatureType featureType : featureTypes) |
| { |
| if (featureType.matches(feature)) |
| { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| public static CDOFeatureType read(String str) |
| { |
| if (str != null) |
| { |
| str = str.trim().toUpperCase(); |
| |
| try |
| { |
| return valueOf(str); |
| } |
| catch (Exception ex) |
| { |
| //$FALL-THROUGH$ |
| } |
| } |
| |
| return NONE; |
| } |
| |
| public static Set<CDOFeatureType> readCombination(String str) |
| { |
| if (str != null) |
| { |
| str = str.replace(' ', '|').replace(',', '|').replace(';', '|'); |
| |
| Set<CDOFeatureType> result = new HashSet<CDOFeatureType>(); |
| |
| for (String token : str.split("\\|")) |
| { |
| CDOFeatureType featureType = read(token); |
| if (featureType != NONE) |
| { |
| result.add(featureType); |
| } |
| } |
| |
| return result; |
| } |
| |
| return Collections.emptySet(); |
| } |
| |
| public static String writeCombination(Collection<CDOFeatureType> featureTypes) |
| { |
| if (featureTypes != null) |
| { |
| if (!(featureTypes instanceof Set)) |
| { |
| featureTypes = new HashSet<CDOFeatureType>(featureTypes); |
| } |
| |
| if (featureTypes.contains(ALL)) |
| { |
| return ALL.toString(); |
| } |
| |
| if (featureTypes.contains(REFERENCE)) |
| { |
| featureTypes.remove(CONTAINER); |
| featureTypes.remove(CONTAINMENT); |
| featureTypes.remove(XREF); |
| } |
| |
| featureTypes.remove(NONE); |
| |
| List<CDOFeatureType> list = new ArrayList<CDOFeatureType>(featureTypes); |
| Collections.sort(list); |
| |
| StringBuilder result = new StringBuilder(); |
| for (CDOFeatureType featureType : list) |
| { |
| if (result.length() != 0) |
| { |
| result.append("|"); |
| } |
| |
| result.append(featureType); |
| } |
| |
| return result.toString(); |
| } |
| |
| return ""; |
| } |
| } |