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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.bluetooth.mapclient;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public final class ObexTime {
private Date mDate;
public ObexTime(String time) {
/*
* Match OBEX time string: YYYYMMDDTHHMMSS with optional UTF offset +/-hhmm
*
* Matched groups are numberes as follows:
*
* YYYY MM DD T HH MM SS + hh mm
* ^^^^ ^^ ^^ ^^ ^^ ^^ ^ ^^ ^^
* 1 2 3 4 5 6 8 9 10
* |---7---|
*
* All groups are guaranteed to be numeric so conversion will always succeed (except group 8
* which is either + or -)
*/
Pattern p = Pattern.compile(
"(\\d{4})(\\d{2})(\\d{2})T(\\d{2})(\\d{2})(\\d{2})(([+-])(\\d{2})(\\d{2})" + ")?");
Matcher m = p.matcher(time);
if (m.matches()) {
/*
* MAP spec says to default to "Local Time basis" for a message listing timestamp. We'll
* use the system default timezone and assume it knows best what our local timezone is.
* The builder defaults to the default locale and timezone if none is provided.
*/
Calendar.Builder builder = new Calendar.Builder();
/* Note that Calendar months are zero-based */
builder.setDate(Integer.parseInt(m.group(1)), /* year */
Integer.parseInt(m.group(2)) - 1, /* month */
Integer.parseInt(m.group(3))); /* day of month */
/* Note the MAP timestamp doesn't have milliseconds and we're explicitly setting to 0 */
builder.setTimeOfDay(Integer.parseInt(m.group(4)), /* hours */
Integer.parseInt(m.group(5)), /* minutes */
Integer.parseInt(m.group(6)), /* seconds */
0); /* milliseconds */
/*
* If 7th group is matched then we're no longer using "Local Time basis" and instead
* have a UTC based timestamp and offset information included
*/
if (m.group(7) != null) {
int ohh = Integer.parseInt(m.group(9));
int omm = Integer.parseInt(m.group(10));
/* time zone offset is specified in miliseconds */
int offset = (ohh * 60 + omm) * 60 * 1000;
if (m.group(8).equals("-")) {
offset = -offset;
}
TimeZone tz = TimeZone.getTimeZone("UTC");
tz.setRawOffset(offset);
builder.setTimeZone(tz);
}
mDate = builder.build().getTime();
}
}
public ObexTime(Date date) {
mDate = date;
}
public Date getTime() {
return mDate;
}
@Override
public String toString() {
if (mDate == null) {
return null;
}
Calendar cal = Calendar.getInstance();
cal.setTime(mDate);
/* note that months are numbered stating from 0 */
return String.format(Locale.US, "%04d%02d%02dT%02d%02d%02d", cal.get(Calendar.YEAR),
cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DATE), cal.get(Calendar.HOUR_OF_DAY),
cal.get(Calendar.MINUTE), cal.get(Calendar.SECOND));
}
}
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