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/*
* Mobius Software LTD
* Copyright 2019, Mobius Software LTD and individual contributors
* by the @authors tag.
*
* This program is free software: you can redistribute it and/or modify
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see
*/
package org.restcomm.protocols.ss7.map.primitives;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import org.restcomm.protocols.ss7.map.api.primitives.Time;
import com.mobius.software.telco.protocols.ss7.asn.primitives.ASNOctetString;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
/**
*
* @author Lasith Waruna Perera
* @author yulianoifa
*
*/
public class TimeImpl extends ASNOctetString implements Time {
private static final long msbZero = 2085978496000L;
private static final long msbOne = -2208988800000L;
public TimeImpl() {
super("Time",4,4,false);
}
public TimeImpl(int year, int month, int day, int hour, int minute, int second) {
super(translate(year, month, day, hour, minute, second),"Time",4,4,false);
}
public static ByteBuf translate(int year, int month, int day, int hour, int minute, int second) {
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.set(year, month - 1, day, hour, minute, second);
long ntpTime = getNtpTime(cal.getTimeInMillis());
ByteBuf buf=Unpooled.buffer(4);
buf.writeBytes(longToBytes(ntpTime));
return buf;
}
public int getYear() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.YEAR);
}
public int getMonth() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.MONTH) + 1;
}
public int getDay() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.DATE);
}
public int getHour() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.HOUR_OF_DAY);
}
public int getMinute() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.MINUTE);
}
public int getSecond() {
long time = bytesToLong(getValue());
time = getTime(time);
Date d = new Date(time);
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(d);
return cal.get(Calendar.SECOND);
}
private static long getNtpTime(long time) {
boolean isMSBSet = time < msbZero;
long timeWithMills;
if (isMSBSet) {
timeWithMills = time - msbOne;
} else {
timeWithMills = time - msbZero;
}
long seconds = timeWithMills / 1000;
if (isMSBSet) {
seconds |= 0x80000000L;
}
return seconds;
}
public static long getTime(long ntpTime) {
long msb = ntpTime & 0x80000000L;
if (msb == 0) {
return msbZero + (ntpTime * 1000);
} else {
return msbOne + (ntpTime * 1000);
}
}
public static ByteBuf longToBytes(long x) {
ByteBuf buffer = Unpooled.buffer(8);
buffer.writeLong(x);
buffer.skipBytes(4);
return buffer.readSlice(4);
}
public static long bytesToLong(ByteBuf value) {
return value.readUnsignedInt();
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Time");
sb.append(" [");
if (getValue() != null) {
sb.append("year=");
sb.append(this.getYear());
sb.append(", month=");
sb.append(this.getMonth());
sb.append(", day=");
sb.append(this.getDay());
sb.append(", hour=");
sb.append(this.getHour());
sb.append(", minite=");
sb.append(this.getMinute());
sb.append(", second=");
sb.append(this.getSecond());
}
sb.append("]");
return sb.toString();
}
}
