Mercurial > hg > release > thermostat-1.2
view web/server/src/main/java/com/redhat/thermostat/web/server/CategoryManager.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | 967ff19b0416 |
children |
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/* * Copyright 2012-2015 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.HashMap; import java.util.Map; import java.util.Objects; import java.util.UUID; import com.redhat.thermostat.storage.core.Category; import com.redhat.thermostat.storage.model.Pojo; import com.redhat.thermostat.web.common.SharedStateId; class CategoryManager { private final Map<CategoryIdentifier, SharedStateId> categoryIds; private final Map<SharedStateId, Category<?>> categories; private int categoryIdCounter = 0; CategoryManager() { categories = new HashMap<>(); categoryIds = new HashMap<>(); } // Testing only CategoryManager(int initialValue) { this(); categoryIdCounter = initialValue; } synchronized <T extends Pojo> SharedStateId putCategory(UUID serverNonce, Category<T> category, CategoryIdentifier catId) { if (categoryIds.containsKey(Objects.requireNonNull(catId))) { return categoryIds.get(catId); } else { // add new category Objects.requireNonNull(category); Objects.requireNonNull(serverNonce); SharedStateId newId = new SharedStateId(categoryIdCounter, serverNonce); categoryIdCounter++; // This really should not happen, but if it does fail early. if (categoryIdCounter == Integer.MAX_VALUE) { throw new IllegalStateException("Too many categories!"); } categoryIds.put(catId, newId); categories.put(newId, category); return newId; } } synchronized SharedStateId getCategoryId(CategoryIdentifier key) { return categoryIds.get(Objects.requireNonNull(key)); } @SuppressWarnings("unchecked") synchronized <T extends Pojo> Category<T> getCategory(SharedStateId id) { return (Category<T>)categories.get(Objects.requireNonNull(id)); } static class CategoryIdentifier { private final String categoryName; private final String dataClassName; CategoryIdentifier(String categoryName, String dataClassName) { this.categoryName = categoryName; this.dataClassName = dataClassName; } @Override public boolean equals(Object other) { if (other == null || CategoryIdentifier.class != other.getClass()) { return false; } CategoryIdentifier o = (CategoryIdentifier)other; return Objects.equals(categoryName, o.categoryName) && Objects.equals(dataClassName, o.dataClassName); } @Override public int hashCode() { return Objects.hash(categoryName, dataClassName); } } }