SIPSender.java
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package com.genersoft.iot.vmp.gb28181.transmit;
import com.genersoft.iot.vmp.gb28181.SipLayer;
import com.genersoft.iot.vmp.gb28181.event.SipSubscribe;
import com.genersoft.iot.vmp.gb28181.utils.SipUtils;
import com.genersoft.iot.vmp.utils.GitUtil;
import gov.nist.javax.sip.SipProviderImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import javax.sip.SipException;
import javax.sip.header.CallIdHeader;
import javax.sip.header.UserAgentHeader;
import javax.sip.header.ViaHeader;
import javax.sip.message.Message;
import javax.sip.message.Request;
import javax.sip.message.Response;
import java.text.ParseException;
/**
* 发送SIP消息
* @author lin
*/
@Component
public class SIPSender {
private final Logger logger = LoggerFactory.getLogger(SIPSender.class);
@Autowired
private SipLayer sipLayer;
@Autowired
private GitUtil gitUtil;
@Autowired
private SipSubscribe sipSubscribe;
public void transmitRequest(String ip, Message message) throws SipException, ParseException {
transmitRequest(ip, message, null, null);
}
public void transmitRequest(String ip, Message message, SipSubscribe.Event errorEvent) throws SipException, ParseException {
transmitRequest(ip, message, errorEvent, null);
}
public void transmitRequest(String ip, Message message, SipSubscribe.Event errorEvent, SipSubscribe.Event okEvent) throws SipException, ParseException {
try {
ViaHeader viaHeader = (ViaHeader)message.getHeader(ViaHeader.NAME);
String transport = "UDP";
if (viaHeader == null) {
logger.warn("[消息头缺失]： ViaHeader， 使用默认的UDP方式处理数据");
}else {
transport = viaHeader.getTransport();
}
if (message.getHeader(UserAgentHeader.NAME) == null) {
try {
message.addHeader(SipUtils.createUserAgentHeader(sipLayer.getSipFactory(), gitUtil));
} catch (ParseException e) {
logger.error("添加UserAgentHeader失败", e);
}
}
CallIdHeader callIdHeader = (CallIdHeader) message.getHeader(CallIdHeader.NAME);
// 添加错误订阅
if (errorEvent != null) {
sipSubscribe.addErrorSubscribe(callIdHeader.getCallId(), (eventResult -> {
errorEvent.response(eventResult);
sipSubscribe.removeErrorSubscribe(eventResult.callId);
sipSubscribe.removeOkSubscribe(eventResult.callId);
}));
}
// 添加订阅
if (okEvent != null) {
sipSubscribe.addOkSubscribe(callIdHeader.getCallId(), eventResult -> {
okEvent.response(eventResult);
sipSubscribe.removeOkSubscribe(eventResult.callId);
sipSubscribe.removeErrorSubscribe(eventResult.callId);
});
}
if ("TCP".equals(transport)) {
SipProviderImpl tcpSipProvider = sipLayer.getTcpSipProvider(ip);
if (tcpSipProvider == null) {
logger.error("[发送信息失败] 未找到tcp://{}的监听信息", ip);
return;
}
if (message instanceof Request) {
tcpSipProvider.sendRequest((Request)message);
}else if (message instanceof Response) {
tcpSipProvider.sendResponse((Response)message);
}
} else if ("UDP".equals(transport)) {
SipProviderImpl sipProvider = sipLayer.getUdpSipProvider(ip);
if (sipProvider == null) {
logger.error("[发送信息失败] 未找到udp://{}的监听信息", ip);
return;
}
if (message instanceof Request) {
sipProvider.sendRequest((Request)message);
}else if (message instanceof Response) {
sipProvider.sendResponse((Response)message);
}
}
} finally {
// logger.info("[SEND]:SUCCESS:{}", message);
}
}
public CallIdHeader getNewCallIdHeader(String ip, String transport){
if (ObjectUtils.isEmpty(transport)) {
return sipLayer.getUdpSipProvider().getNewCallId();
}
SipProviderImpl sipProvider;
if (ObjectUtils.isEmpty(ip)) {
sipProvider = transport.equalsIgnoreCase("TCP") ? sipLayer.getTcpSipProvider()
: sipLayer.getUdpSipProvider();
}else {
sipProvider = transport.equalsIgnoreCase("TCP") ? sipLayer.getTcpSipProvider(ip)
: sipLayer.getUdpSipProvider(ip);
}
if (sipProvider == null) {
sipProvider = sipLayer.getUdpSipProvider();
}
if (sipProvider != null) {
return sipProvider.getNewCallId();
}else {
logger.warn("[新建CallIdHeader失败]， ip={}, transport={}", ip, transport);
return null;
}
}
}