package com.genersoft.iot.vmp.gb28181.transmit.request.impl;
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import javax.sip.Dialog;
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import javax.sip.InvalidArgumentException;
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import javax.sip.RequestEvent;
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import javax.sip.SipException;
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import javax.sip.message.Request;
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import com.genersoft.iot.vmp.gb28181.transmit.request.SIPRequestAbstractProcessor;
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import gov.nist.javax.sip.header.CSeq;
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/**
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* @Description:ACK请求处理器
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* @author: swwheihei
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* @date: 2020年5月3日 下午5:31:45
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*/
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public class AckRequestProcessor extends SIPRequestAbstractProcessor {
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/**
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* 处理 ACK请求
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*
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* @param evt
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*/
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@Override
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public void process(RequestEvent evt) {
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Request request = evt.getRequest();
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Dialog dialog = evt.getDialog();
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if (dialog == null) return;
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try {
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Request ackRequest = null;
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CSeq csReq = (CSeq) request.getHeader(CSeq.NAME);
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ackRequest = dialog.createAck(csReq.getSeqNumber());
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dialog.sendAck(ackRequest);
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System.out.println("send ack to callee:" + ackRequest.toString());
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} catch (SipException e) {
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e.printStackTrace();
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} catch (InvalidArgumentException e) {
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e.printStackTrace();
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}
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}
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}
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