Java tutorial
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2017 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://oss.oracle.com/licenses/CDDL+GPL-1.1 * or LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package javax.mail; /** * This class represents a set of quotas for a given quota root. * Each quota root has a set of resources, represented by the * <code>Quota.Resource</code> class. Each resource has a name * (for example, "STORAGE"), a current usage, and a usage limit. * See RFC 2087. * * @since JavaMail 1.4 * @author Bill Shannon */ public class Quota { /** * An individual resource in a quota root. * * @since JavaMail 1.4 */ public static class Resource { /** The name of the resource. */ public String name; /** The current usage of the resource. */ public long usage; /** The usage limit for the resource. */ public long limit; /** * Construct a Resource object with the given name, * usage, and limit. * * @param name the resource name * @param usage the current usage of the resource * @param limit the usage limit for the resource */ public Resource(String name, long usage, long limit) { this.name = name; this.usage = usage; this.limit = limit; } } /** * The name of the quota root. */ public String quotaRoot; /** * The set of resources associated with this quota root. */ public Quota.Resource[] resources; /** * Create a Quota object for the named quotaroot with no associated * resources. * * @param quotaRoot the name of the quota root */ public Quota(String quotaRoot) { this.quotaRoot = quotaRoot; } /** * Set a resource limit for this quota root. * * @param name the name of the resource * @param limit the resource limit */ public void setResourceLimit(String name, long limit) { if (resources == null) { resources = new Quota.Resource[1]; resources[0] = new Quota.Resource(name, 0, limit); return; } for (int i = 0; i < resources.length; i++) { if (resources[i].name.equalsIgnoreCase(name)) { resources[i].limit = limit; return; } } Quota.Resource[] ra = new Quota.Resource[resources.length + 1]; System.arraycopy(resources, 0, ra, 0, resources.length); ra[ra.length - 1] = new Quota.Resource(name, 0, limit); resources = ra; } }