001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.geronimo.javamail.store.imap.connection; 019 020 import java.text.FieldPosition; 021 import java.text.NumberFormat; 022 import java.text.ParsePosition; 023 import java.text.SimpleDateFormat; 024 import java.util.Calendar; 025 import java.util.Date; 026 import java.util.Locale; 027 028 /** 029 * Formats ths date as specified by 030 * draft-ietf-drums-msg-fmt-08 dated January 26, 2000 031 * which supercedes RFC822. 032 * <p/> 033 * <p/> 034 * The format used is <code>EEE, d MMM yyyy HH:mm:ss Z</code> and 035 * locale is always US-ASCII. 036 * 037 * @version $Rev: 594520 $ $Date: 2007-11-13 07:57:39 -0500 (Tue, 13 Nov 2007) $ 038 */ 039 public class IMAPDateFormat extends SimpleDateFormat { 040 public IMAPDateFormat() { 041 super("dd-MMM-yyyy HH:mm:ss Z", Locale.US); 042 } 043 public StringBuffer format(Date date, StringBuffer buffer, FieldPosition position) { 044 StringBuffer result = super.format(date, buffer, position); 045 // The RFC 2060 requires that the day in the date be formatted with either 2 digits 046 // or one digit. Our format specifies 2 digits, which pads with leading 047 // zeros. We need to check for this and whack it if it's there 048 if (result.charAt(0) == '0') { 049 result.deleteCharAt(0); 050 } 051 return result; 052 } 053 054 /** 055 * The calendar cannot be set 056 * @param calendar 057 * @throws UnsupportedOperationException 058 */ 059 public void setCalendar(Calendar calendar) { 060 throw new UnsupportedOperationException(); 061 } 062 063 /** 064 * The format cannot be set 065 * @param format 066 * @throws UnsupportedOperationException 067 */ 068 public void setNumberFormat(NumberFormat format) { 069 throw new UnsupportedOperationException(); 070 } 071 } 072