/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. 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.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [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 com.sun.mail.imap.protocol;
import java.util.Date;
import java.util.TimeZone;
import java.util.Locale;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.text.FieldPosition;
import javax.mail.internet.MailDateFormat;
import com.sun.mail.iap.*;
/**
* This class
*
* @author John Mani
*/
public class INTERNALDATE implements Item {
static final char[] name =
{'I','N','T','E','R','N','A','L','D','A','T','E'};
public int msgno;
protected Date date;
/*
* Used to parse dates only. The parse method is thread safe
* so we only need to create a single object for use by all
* instances. We depend on the fact that the MailDateFormat
* class will parse dates in INTERNALDATE format as well as
* dates in RFC 822 format.
*/
private static MailDateFormat mailDateFormat = new MailDateFormat();
/**
* Constructor
*/
public INTERNALDATE(FetchResponse r) throws ParsingException {
msgno = r.getNumber();
r.skipSpaces();
String s = r.readString();
if (s == null)
throw new ParsingException("INTERNALDATE is NIL");
try {
date = mailDateFormat.parse(s);
} catch (ParseException pex) {
throw new ParsingException("INTERNALDATE parse error");
}
}
public Date getDate() {
return date;
}
// INTERNALDATE formatter
private static SimpleDateFormat df =
// Need Locale.US, the "MMM" field can produce unexpected values
// in non US locales !
new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss ", Locale.US);
/**
* Format given Date object into INTERNALDATE string
*/
public static String format(Date d) {
/*
* SimpleDateFormat objects aren't thread safe, so rather
* than create a separate such object for each request,
* we create one object and synchronize its use here
* so that only one thread is using it at a time. This
* trades off some potential concurrency for speed in the
* common case.
*
* This method is only used when formatting the date in a
* message that's being appended to a folder.
*/
StringBuffer sb = new StringBuffer();
synchronized (df) {
df.format(d, sb, new FieldPosition(0));
}
// compute timezone offset string
// XXX - Yes, I know this is deprecated
int rawOffsetInMins = -d.getTimezoneOffset();
/*
* XXX - in JavaMail 1.4 / J2SE 1.4, possibly replace above with:
*
TimeZone tz = TimeZone.getDefault();
int offset = tz.getOffset(d); // get offset from GMT
int rawOffsetInMins = offset / 60 / 1000; // offset from GMT in mins
*/
if (rawOffsetInMins < 0) {
sb.append('-');
rawOffsetInMins = (-rawOffsetInMins);
} else
sb.append('+');
int offsetInHrs = rawOffsetInMins / 60;
int offsetInMins = rawOffsetInMins % 60;
sb.append(Character.forDigit((offsetInHrs/10), 10));
sb.append(Character.forDigit((offsetInHrs%10), 10));
sb.append(Character.forDigit((offsetInMins/10), 10));
sb.append(Character.forDigit((offsetInMins%10), 10));
return sb.toString();
}
}