/** * Copyright 2004-2016 Riccardo Solmi. All rights reserved. * This file is part of the Whole Platform. * * The Whole Platform is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * The Whole Platform is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>. */ package org.whole.lang.reflect; import java.util.Collection; import java.util.HashSet; /** * @author Riccardo Solmi */ public class NullLanguageRequestHandler implements ILanguageRequestHandler { public static NullLanguageRequestHandler instance = new NullLanguageRequestHandler(); protected NullLanguageRequestHandler() { } public int getPriority() { return Integer.MIN_VALUE; } public void addLanguageRequestHandler(ILanguageRequestHandler handler) { if (handler != this) throw new IllegalStateException(); } public ILanguageRequestHandler removeLanguageRequestHandler(ILanguageRequestHandler handler) { return this; } public Collection<String> getLanguagesURIs(Collection<String> collection) { if (collection == null) return new HashSet<String>(); else return collection; } public Collection<String> getLanguagesNames(Collection<String> collection) { if (collection == null) return new HashSet<String>(); else return collection; } public boolean containsLanguage(String languageURI) { return false; } public boolean deployLanguage(String languageURI) { return false; } public boolean undeployLanguage(String languageURI) { return false; } }