private void processMsg(byte[] msgbyte) {
// 得到主题
HeaderItem hi = HeaderItem.fetchHeaderItem(msgbyte);
String strtop = hi.getContentStr();
// System.out.println("recved header="+strtop);
if (!msgTopic.isMatch(strtop)) {
return;
}
byte[] tmpbytes = HeaderItem.cutHeaderItem(msgbyte, hi);
// 得到唯一id
hi = HeaderItem.fetchHeaderItem(tmpbytes);
String tmpid = hi.getContentStr();
// System.out.println("recved id="+tmpid);
Hashtable tmph = (Hashtable) idMsgBuf.get(tmpid);
if (tmph == null) {
tmph = new Hashtable();
idMsgBuf.put(tmpid, tmph);
}
tmpbytes = HeaderItem.cutHeaderItem(tmpbytes, hi);
// 得到顺序号
hi = HeaderItem.fetchHeaderItem(tmpbytes);
tmpbytes = HeaderItem.cutHeaderItem(tmpbytes, hi);
String strord = hi.getContentStr();
// System.out.println("recved order id="+strord);
tmph.put(strord, tmpbytes);
// System.out.println("recved ="+new String(tmpbytes));
int d = strord.indexOf('_');
int pknum = Integer.parseInt(strord.substring(0, d));
if (tmph.size() == pknum) { // 一个主题的信息收齐，通知顶层
int s = callBack.size();
byte[] tmprecv = merge(tmph);
// System.out.println ("Recving-----"+strtop+"["+tmprecv.length+"]") ;
if (DEBUG) {
log("UdpBase Recved<<----[" + strtop + "][" + tmprecv.length + "]");
}
for (int k = 0; k < s; k++) {
((UDPBaseCallback) callBack.elementAt(k)).OnMsg(this, strtop, tmprecv);
}
idMsgBuf.remove(tmpid);
}
}
/** 用广播方式发送一条消息 */
public void send(String topic, byte[] infobuf)
throws
UDPBaseException { // System.out.println ("Sending-----["+topic+"]["+infobuf.length+"]") ;
// log.log("Sending-----["+topic+"]["+infobuf.length+"]") ;
if (bInitNull) {
return;
}
if (DEBUG) {
log("UdpBase Sending--->>[" + topic + "][" + infobuf.length + "]");
}
if (topic.length() > 150) {
throw new UDPBaseException("Topic is too long!!");
}
if (infobuf == null || infobuf.length == 0) {
throw new UDPBaseException("Info to be send cannot null!");
}
try {
String tmpid = getOneID();
// System.out.println ("ONE ID="+tmpid) ;
int bs = infobuf.length / MAX_PACKET_LENGTH;
int sy = infobuf.length % MAX_PACKET_LENGTH;
int pknum = bs + (sy == 0 ? 0 : 1);
DatagramPacket packet = null;
HeaderItem topicHeader = new HeaderItem(topic);
HeaderItem idHeader = new HeaderItem(tmpid);
byte[] tmpb = null;
for (int i = 0; i < bs; i++) {
// if (i>0)//循环发送信息每次发送间加间隔，以提高发送成功率
Thread.sleep(LOOP_SEND_INTERVAL);
// 增加顺序头
HeaderItem orderHeader = new HeaderItem("" + pknum + "_" + i);
tmpb =
HeaderItem.appendHeaderItem(
infobuf, i * MAX_PACKET_LENGTH, MAX_PACKET_LENGTH, orderHeader);
// 增加唯一id
tmpb = HeaderItem.appendHeaderItem(tmpb, idHeader);
// 增加主题头
tmpb = HeaderItem.appendHeaderItem(tmpb, topicHeader);
packet = new DatagramPacket(tmpb, 0, tmpb.length, group, RECV_PORT);
// System.out.println("send package");
sendSocket.send(packet);
}
if (sy > 0) {
Thread.sleep(LOOP_SEND_INTERVAL);
// 增加顺序头
HeaderItem orderHeader = new HeaderItem("" + pknum + "_" + bs);
tmpb = HeaderItem.appendHeaderItem(infobuf, bs * MAX_PACKET_LENGTH, sy, orderHeader);
// 增加唯一id
tmpb = HeaderItem.appendHeaderItem(tmpb, idHeader);
// 增加主题头
tmpb = HeaderItem.appendHeaderItem(tmpb, topicHeader);
packet = new DatagramPacket(tmpb, 0, tmpb.length, group, RECV_PORT);
// System.out.println("send.."+new String(tmpb));
sendSocket.send(packet);
}
} catch (Exception e) {
e.printStackTrace();
throw new UDPBaseException("UDPBase send() error=\n" + e.toString());
}
}