| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you under the Apache License, Version 2.0 (the * |
| * "License"); you may not use this file except in compliance * |
| * with the License. You may obtain a copy of the License at * |
| * * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
| * KIND, either express or implied. See the License for the * |
| * specific language governing permissions and limitations * |
| * under the License. * |
| ****************************************************************/ |
| |
| package org.apache.james.mime4j.dom.address; |
| |
| import java.io.Serializable; |
| import java.util.AbstractList; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * An immutable, random-access list of Strings (that are supposedly domain names |
| * or domain literals). |
| */ |
| public final class DomainList extends AbstractList<String> implements Serializable { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final List<String> domains; |
| |
| /** |
| * @param domains |
| * A List that contains only String objects. |
| * @param dontCopy |
| * true iff it is not possible for the addresses list to be |
| * modified by someone else. |
| */ |
| public DomainList(List<String> domains, boolean dontCopy) { |
| if (domains != null) { |
| this.domains = dontCopy ? domains : new ArrayList<String>(domains); |
| } else { |
| this.domains = Collections.emptyList(); |
| } |
| } |
| |
| /** |
| * @param domains |
| * A List that contains only String objects. |
| */ |
| public DomainList(List<String> domains) { |
| this(domains, false); |
| } |
| |
| /** |
| * @param domains |
| * A List that contains only String objects. |
| */ |
| public DomainList(String... domains) { |
| if (domains != null) { |
| this.domains = Arrays.asList(domains); |
| } else { |
| this.domains = Collections.emptyList(); |
| } |
| } |
| /** |
| * The number of elements in this list. |
| */ |
| @Override |
| public int size() { |
| return domains.size(); |
| } |
| |
| /** |
| * Gets the domain name or domain literal at the specified index. |
| * |
| * @throws IndexOutOfBoundsException |
| * If index is < 0 or >= size(). |
| */ |
| @Override |
| public String get(int index) { |
| return domains.get(index); |
| } |
| |
| /** |
| * Returns the list of domains formatted as a route string (not including |
| * the trailing ':'). |
| */ |
| public String toRouteString() { |
| StringBuilder sb = new StringBuilder(); |
| |
| for (String domain : domains) { |
| if (sb.length() > 0) { |
| sb.append(','); |
| } |
| |
| sb.append("@"); |
| sb.append(domain); |
| } |
| |
| return sb.toString(); |
| } |
| |
| @Override |
| public String toString() { |
| return toRouteString(); |
| } |
| |
| } |