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