javax.mail.internet.NewsAddress Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2016 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/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 packager/legal/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.internet;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import java.util.Locale;
import javax.mail.*;
/**
* This class models an RFC1036 newsgroup address.
*
* @author Bill Shannon
* @author John Mani
*/
public class NewsAddress extends Address {
protected String newsgroup;
protected String host; // may be null
private static final long serialVersionUID = -4203797299824684143L;
/**
* Default constructor.
*/
public NewsAddress() { }
/**
* Construct a NewsAddress with the given newsgroup.
*
* @param newsgroup the newsgroup
*/
public NewsAddress(String newsgroup) {
this(newsgroup, null);
}
/**
* Construct a NewsAddress with the given newsgroup and host.
*
* @param newsgroup the newsgroup
* @param host the host
*/
public NewsAddress(String newsgroup, String host) {
// XXX - this method should throw an exception so we can report
// illegal addresses, but for now just remove whitespace
this.newsgroup = newsgroup.replaceAll("\\s+", "");
this.host = host;
}
/**
* Return the type of this address. The type of a NewsAddress
* is "news".
*/
public String getType() {
return "news";
}
/**
* Set the newsgroup.
*
* @param newsgroup the newsgroup
*/
public void setNewsgroup(String newsgroup) {
this.newsgroup = newsgroup;
}
/**
* Get the newsgroup.
*
* @return newsgroup
*/
public String getNewsgroup() {
return newsgroup;
}
/**
* Set the host.
*
* @param host the host
*/
public void setHost(String host) {
this.host = host;
}
/**
* Get the host.
*
* @return host
*/
public String getHost() {
return host;
}
/**
* Convert this address into a RFC 1036 address.
*
* @return newsgroup
*/
public String toString() {
return newsgroup;
}
/**
* The equality operator.
*/
public boolean equals(Object a) {
if (!(a instanceof NewsAddress))
return false;
NewsAddress s = (NewsAddress)a;
return ((newsgroup == null && s.newsgroup == null) ||
(newsgroup != null && newsgroup.equals(s.newsgroup))) &&
((host == null && s.host == null) ||
(host != null && s.host != null && host.equalsIgnoreCase(s.host)));
}
/**
* Compute a hash code for the address.
*/
public int hashCode() {
int hash = 0;
if (newsgroup != null)
hash += newsgroup.hashCode();
if (host != null)
hash += host.toLowerCase(Locale.ENGLISH).hashCode();
return hash;
}
/**
* Convert the given array of NewsAddress objects into
* a comma separated sequence of address strings. The
* resulting string contains only US-ASCII characters, and
* hence is mail-safe.
*
* @param addresses array of NewsAddress objects
* @exception ClassCastException if any address object in the
* given array is not a NewsAddress objects. Note
* that this is a RuntimeException.
* @return comma separated address strings
*/
public static String toString(Address[] addresses) {
if (addresses == null || addresses.length == 0)
return null;
StringBuffer s =
new StringBuffer(((NewsAddress)addresses[0]).toString());
int used = s.length();
for (int i = 1; i < addresses.length; i++) {
s.append(",");
used++;
String ng = ((NewsAddress)addresses[i]).toString();
if (used + ng.length() > 76) {
s.append("\r\n\t");
used = 8;
}
s.append(ng);
used += ng.length();
}
return s.toString();
}
/**
* Parse the given comma separated sequence of newsgroups into
* NewsAddress objects.
*
* @param newsgroups comma separated newsgroup string
* @return array of NewsAddress objects
* @exception AddressException if the parse failed
*/
public static NewsAddress[] parse(String newsgroups)
throws AddressException {
// XXX - verify format of newsgroup name?
StringTokenizer st = new StringTokenizer(newsgroups, ",");
List nglist = new ArrayList();
while (st.hasMoreTokens()) {
String ng = st.nextToken();
nglist.add(new NewsAddress(ng));
}
return nglist.toArray(new NewsAddress[nglist.size()]);
}
}