Mercurial > hg > release > thermostat-0.15
view web/server/src/main/java/com/redhat/thermostat/web/server/KnownCategoryRegistry.java @ 1220:71b72b655b84
Implement check for which categories we allow to get registered.
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-August/007805.html
author | Severin Gehwolf <sgehwolf@redhat.com> |
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date | Tue, 06 Aug 2013 12:29:07 +0200 |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.web.server; import java.util.Collections; import java.util.HashSet; import java.util.ServiceLoader; import java.util.Set; import com.redhat.thermostat.storage.core.Category; import com.redhat.thermostat.storage.core.auth.CategoryRegistration; /** * Registers trusted category names. * * @see CategoryRegistration * @see Category */ final class KnownCategoryRegistry { private static final ServiceLoader<CategoryRegistration> TRUSTED_CATEGORIES = ServiceLoader .load(CategoryRegistration.class); private final Set<String> trustedCategories; KnownCategoryRegistry() { this(TRUSTED_CATEGORIES); } KnownCategoryRegistry(Iterable<CategoryRegistration> registrations) { trustedCategories = new HashSet<>(); for (CategoryRegistration reg: registrations) { Set<String> currentRegs = reg.getCategoryNames(); if (currentRegs.contains(null)) { String msg = "null name not allowed!"; throw new IllegalStateException(msg); } trustedCategories.addAll(currentRegs); } } Set<String> getRegisteredCategoryNames() { // return a read-only view of registered category names. return Collections.unmodifiableSet(trustedCategories); } }