求移动CMPP2 MSGID生成和解码的算法

[nemo320]

这个算法是CMPP2.0中产生Msg_Id的算法。
算法如下：
采用64位（8字节）的整数：
（1） 时间（格式为MMDDHHMMSS，即月日时分秒）：bit64~bit39，
其中
bit64~bit61：月份的二进制表示；
bit60~bit56：日的二进制表示；
bit55~bit51：小时的二进制表示；
bit50~bit45：分的二进制表示；
bit44~bit39：秒的二进制表示；
（2） 短信网关代码：bit38~bit17，把短信网关的代码转换为整数填写到该字段中。
（3） 序列号：bit16~bit1，顺序增加，步长为1，循环使用。
各部分如不能填满，左补零，右对齐。

请高手解答

[火龙果被占用了]

现写了一个，可以参考一下：

public class Test {

    public static void main(String[] args) {
        CmppMessageId messageId = CmppMessageId.next(12345);
        System.out.println("long: " + messageId.getMessageId());
        System.out.println(" hex: " + messageId.getHexMessageId());
        System.out.println(messageId);
        System.out.println("-------------------");
        long id = messageId.getMessageId();
        CmppMessageId pa = CmppMessageId.parse(id);
        System.out.println(pa);
        System.out.println(pa.equals(messageId));
        System.out.println("-------------------");
        String hex = messageId.getHexMessageId();
        CmppMessageId pb = CmppMessageId.parse(hex);
        System.out.println(pb);
        System.out.println(pb.equals(messageId));
    }
}

import java.util.Calendar;
import java.util.concurrent.atomic.AtomicInteger;

public class CmppMessageId {

    private final static char[] HEX = "0123456789abcdef".toCharArray();

    private static AtomicInteger atomic = new AtomicInteger(0);

    private long messageId;

    private int month;
    private int day;
    private int hour;
    private int minute;
    private int second;
    private int gateway;
    private int sequence;

    private CmppMessageId() {
    }

    private CmppMessageId(int gateway) {
        this.gateway = gateway;
        this.sequence = atomic.getAndIncrement() & 0xff;
        timeSetting();
        messageIdSetting();
    }

    public static CmppMessageId next(int gateway) {
        return new CmppMessageId(gateway);
    }

    public static CmppMessageId parse(long messageId) {
        CmppMessageId cmppMessageId = new CmppMessageId();
        cmppMessageId.messageId = messageId;
        cmppMessageId.month     = (int)((messageId >>> 60) & 0xf);
        cmppMessageId.day       = (int)((messageId >>> 55) & 0x1f);
        cmppMessageId.hour      = (int)((messageId >>> 50) & 0x1f);;
        cmppMessageId.minute    = (int)((messageId >>> 44) & 0x3f);;
        cmppMessageId.second    = (int)((messageId >>> 38) & 0x3f);;
        cmppMessageId.gateway   = (int)((messageId >>> 16) & 0x3fffff);;
        cmppMessageId.sequence  = (int)(messageId & 0xff);;
        return cmppMessageId;
    }

    public static CmppMessageId parse(String hexMessageId) {
        return parse(Long.parseLong(hexMessageId, 16));
    }

    private void timeSetting() {
        Calendar current = Calendar.getInstance();
        this.month = current.get(Calendar.MONTH) + 1;
        this.day = current.get(Calendar.DATE);
        this.hour = current.get(Calendar.HOUR_OF_DAY);
        this.minute = current.get(Calendar.MINUTE);
        this.second = current.get(Calendar.SECOND);
    }

    private void messageIdSetting() {
        messageId |= (long)month << 60L;
        messageId |= (long)day << 55L;
        messageId |= (long)hour << 50L;
        messageId |= (long)minute << 44L;
        messageId |= (long)second << 38L;
        messageId |= (long)gateway << 16L;
        messageId |= (long)sequence & 0xffL;
    }

    public String getHexMessageId() {
        char[] chs = new char[16];
        chs[ 0] = HEX[(int)((messageId >>> 60) & 0xf)];
        chs[ 1] = HEX[(int)((messageId >>> 56) & 0xf)];
        chs[ 2] = HEX[(int)((messageId >>> 52) & 0xf)];
        chs[ 3] = HEX[(int)((messageId >>> 48) & 0xf)];
        chs[ 4] = HEX[(int)((messageId >>> 44) & 0xf)];
        chs[ 5] = HEX[(int)((messageId >>> 40) & 0xf)];
        chs[ 6] = HEX[(int)((messageId >>> 36) & 0xf)];
        chs[ 7] = HEX[(int)((messageId >>> 32) & 0xf)];
        chs[ 8] = HEX[(int)((messageId >>> 28) & 0xf)];
        chs[ 9] = HEX[(int)((messageId >>> 24) & 0xf)];
        chs[10] = HEX[(int)((messageId >>> 20) & 0xf)];
        chs[11] = HEX[(int)((messageId >>> 16) & 0xf)];
        chs[12] = HEX[(int)((messageId >>> 12) & 0xf)];
        chs[13] = HEX[(int)((messageId >>>  8) & 0xf)];
        chs[14] = HEX[(int)((messageId >>>  4) & 0xf)];
        chs[15] = HEX[(int)(messageId & 0xf)];
        return new String(chs);
    }

    public long getMessageId() {
        return messageId;
    }

    public int getMonth() {
        return month;
    }

    public int getDay() {
        return day;
    }

    public int getHour() {
        return hour;
    }

    public int getMinute() {
        return minute;
    }

    public int getSecond() {
        return second;
    }

    public int getGateway() {
        return gateway;
    }

    public int getSequence() {
        return sequence;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + day;
        result = prime * result + gateway;
        result = prime * result + hour;
        result = prime * result + (int) (messageId ^ (messageId >>> 32));
        result = prime * result + minute;
        result = prime * result + month;
        result = prime * result + second;
        result = prime * result + sequence;
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        CmppMessageId other = (CmppMessageId) obj;
        if (day != other.day)
            return false;
        if (gateway != other.gateway)
            return false;
        if (hour != other.hour)
            return false;
        if (messageId != other.messageId)
            return false;
        if (minute != other.minute)
            return false;
        if (month != other.month)
            return false;
        if (second != other.second)
            return false;
        if (sequence != other.sequence)
            return false;
        return true;
    }

    public String toString() {
        return "MessageId: " + getHexMessageId() +
               ", month: " + month +
               ", day: " + day +
               ", hour: " + hour +
               ", minute: " + minute +
               ", second: " + second +
               ", gateway: " + gateway +
               ", sequence: " + sequence;
    }
}