package com.genersoft.iot.vmp.gb28181.task.impl; 
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import com.genersoft.iot.vmp.conf.DynamicTask; 
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import com.genersoft.iot.vmp.gb28181.bean.Device; 
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import com.genersoft.iot.vmp.gb28181.task.ISubscribeTask; 
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import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommander; 
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import gov.nist.javax.sip.message.SIPRequest; 
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import org.slf4j.Logger; 
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import org.slf4j.LoggerFactory; 
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import org.springframework.scheduling.annotation.Async; 
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor; 
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import javax.sip.*; 
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import javax.sip.header.ToHeader; 
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import java.text.ParseException; 
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import java.util.Timer; 
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import java.util.TimerTask; 
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/** 
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 * 目录订阅任务 
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 * @author lin 
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 */ 
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public class CatalogSubscribeTask implements ISubscribeTask { 
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    private final Logger logger = LoggerFactory.getLogger(CatalogSubscribeTask.class); 
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    private Device device; 
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    private final ISIPCommander sipCommander; 
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    private SIPRequest request; 
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    private DynamicTask dynamicTask; 
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    private String taskKey = "catalog-subscribe-timeout"; 
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    public CatalogSubscribeTask(Device device, ISIPCommander sipCommander, DynamicTask dynamicTask) { 
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        this.device = device; 
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        this.sipCommander = sipCommander; 
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        this.dynamicTask = dynamicTask; 
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    } 
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    @Override 
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    public void run() { 
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        if (dynamicTask.get(taskKey) != null) { 
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            dynamicTask.stop(taskKey); 
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        } 
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        SIPRequest sipRequest = null; 
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        try { 
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            sipRequest = sipCommander.catalogSubscribe(device, request, eventResult -> { 
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                ResponseEvent event = (ResponseEvent) eventResult.event; 
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                // 成功 
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                logger.info("[目录订阅]成功: {}", device.getDeviceId()); 
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                ToHeader toHeader = (ToHeader)event.getResponse().getHeader(ToHeader.NAME); 
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                try { 
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                    this.request.getToHeader().setTag(toHeader.getTag()); 
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                } catch (ParseException e) { 
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                    logger.info("[目录订阅]成功: 但为request设置ToTag失败"); 
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                    this.request = null; 
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                } 
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            },eventResult -> { 
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                this.request = null; 
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                // 失败 
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                logger.warn("[目录订阅]失败,信令发送失败: {}-{} ", device.getDeviceId(), eventResult.msg); 
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                dynamicTask.startDelay(taskKey, CatalogSubscribeTask.this, 2000); 
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            }); 
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        } catch (InvalidArgumentException | SipException | ParseException e) { 
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            logger.error("[命令发送失败] 目录订阅: {}", e.getMessage()); 
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        } 
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        if (sipRequest != null) { 
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            this.request = sipRequest; 
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        } 
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    } 
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    @Override 
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    public void stop() { 
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        /** 
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         * dialog 的各个状态 
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         * EARLY-> Early state状态-初始请求发送以后,收到了一个临时响应消息 
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         * CONFIRMED-> Confirmed Dialog状态-已确认 
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         * COMPLETED-> Completed Dialog状态-已完成 
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         * TERMINATED-> Terminated Dialog状态-终止 
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         */ 
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        logger.info("取消目录订阅时dialog状态为{}", DialogState.CONFIRMED); 
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        if (dynamicTask.get(taskKey) != null) { 
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            dynamicTask.stop(taskKey); 
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        } 
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        device.setSubscribeCycleForCatalog(0); 
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        try { 
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            sipCommander.catalogSubscribe(device, request, eventResult -> { 
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                ResponseEvent event = (ResponseEvent) eventResult.event; 
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                if (event.getResponse().getRawContent() != null) { 
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                    // 成功 
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                    logger.info("[取消目录订阅订阅]成功: {}", device.getDeviceId()); 
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                }else { 
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                    // 成功 
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                    logger.info("[取消目录订阅订阅]成功: {}", device.getDeviceId()); 
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                } 
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            },eventResult -> { 
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                // 失败 
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                logger.warn("[取消目录订阅订阅]失败,信令发送失败: {}-{} ", device.getDeviceId(), eventResult.msg); 
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            }); 
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        } catch (InvalidArgumentException | SipException | ParseException e) { 
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            logger.error("[命令发送失败] 取消目录订阅订阅: {}", e.getMessage()); 
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        } 
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    } 
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} 
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