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package org.glowroot.shaded.javax.mail.internet;
import java.util.Vector;
import java.util.StringTokenizer;
import java.util.Locale;
import org.glowroot.shaded.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) {
this.newsgroup = newsgroup;
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());
for (int i = 1; i < addresses.length; i++)
s.append(",").append(((NewsAddress)addresses[i]).toString());
return s.toString();
}
/**
* Parse the given comma separated sequence of newsgroup 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, ",");
Vector nglist = new Vector();
while (st.hasMoreTokens()) {
String ng = st.nextToken();
nglist.addElement(new NewsAddress(ng));
}
int size = nglist.size();
NewsAddress[] na = new NewsAddress[size];
if (size > 0)
nglist.copyInto(na);
return na;
}
}