调整上级观看消息的发送

648540858

2024-05-29 764d04b497356ba6bcbb75fd42b51eca750f7223

 src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java

@@ -5,28 +5,26 @@
import com.genersoft.iot.vmp.conf.UserSetting;

import com.genersoft.iot.vmp.gb28181.event.EventPublisher;

import com.genersoft.iot.vmp.gb28181.session.AudioBroadcastManager;

import com.genersoft.iot.vmp.gb28181.event.subscribe.catalog.CatalogEvent;

import com.genersoft.iot.vmp.gb28181.session.AudioBroadcastManager;

import com.genersoft.iot.vmp.gb28181.session.SSRCFactory;

import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;

import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;

import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommanderForPlatform;

import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;

import com.genersoft.iot.vmp.media.bean.MediaServer;

import com.genersoft.iot.vmp.media.bean.ResultForOnPublish;

import com.genersoft.iot.vmp.media.event.hook.HookSubscribe;

import com.genersoft.iot.vmp.media.event.media.*;

import com.genersoft.iot.vmp.media.event.mediaServer.MediaSendRtpStoppedEvent;

import com.genersoft.iot.vmp.media.service.IMediaServerService;

import com.genersoft.iot.vmp.media.bean.MediaServer;

import com.genersoft.iot.vmp.media.zlm.dto.ZLMServerConfig;

import com.genersoft.iot.vmp.media.zlm.dto.hook.*;

import com.genersoft.iot.vmp.media.zlm.event.HookZlmServerKeepaliveEvent;

import com.genersoft.iot.vmp.media.zlm.event.HookZlmServerStartEvent;

import com.genersoft.iot.vmp.service.*;

import com.genersoft.iot.vmp.service.bean.SSRCInfo;

import com.genersoft.iot.vmp.service.redisMsg.IRedisRpcService;

import com.genersoft.iot.vmp.storager.IRedisCatchStorage;

import com.genersoft.iot.vmp.storager.IVideoManagerStorage;

import com.genersoft.iot.vmp.utils.MediaServerUtils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;

@@ -38,7 +36,6 @@
import org.springframework.web.bind.annotation.*;



import javax.servlet.http.HttpServletRequest;

import java.util.HashMap;

import java.util.Map;



/**

@@ -152,7 +149,7 @@
    @PostMapping(value = "/on_play", produces = "application/json;charset=UTF-8")

    public HookResult onPlay(@RequestBody OnPlayHookParam param) {



        Map<String, String> paramMap = urlParamToMap(param.getParams());

        Map<String, String> paramMap = MediaServerUtils.urlParamToMap(param.getParams());

        // 对于播放流进行鉴权

        boolean authenticateResult = mediaService.authenticatePlay(param.getApp(), param.getStream(), paramMap.get("callId"));

        if (!authenticateResult) {

@@ -180,54 +177,6 @@
        if (mediaServer == null) {

            return new HookResultForOnPublish(0, "success");

        }

        // 推流鉴权的处理

        if (!"rtp".equals(param.getApp())) {

            StreamProxyItem stream = streamProxyService.getStreamProxyByAppAndStream(param.getApp(), param.getStream());

            if (stream != null) {

                HookResultForOnPublish result = HookResultForOnPublish.SUCCESS();

                result.setEnable_audio(stream.isEnableAudio());

                result.setEnable_mp4(stream.isEnableMp4());

                return result;

            }

            if (userSetting.getPushAuthority()) {

                // 推流鉴权

                if (param.getParams() == null) {

                    logger.info("推流鉴权失败： 缺少必要参数：sign=md5(user表的pushKey)");

                    return new HookResultForOnPublish(401, "Unauthorized");

                }

                Map<String, String> paramMap = urlParamToMap(param.getParams());

                String sign = paramMap.get("sign");

                if (sign == null) {

                    logger.info("推流鉴权失败： 缺少必要参数：sign=md5(user表的pushKey)");

                    return new HookResultForOnPublish(401, "Unauthorized");

                }

                // 推流自定义播放鉴权码

                String callId = paramMap.get("callId");

                // 鉴权配置

                boolean hasAuthority = userService.checkPushAuthority(callId, sign);

                if (!hasAuthority) {

                    logger.info("推流鉴权失败： sign 无权限: callId={}. sign={}", callId, sign);

                    return new HookResultForOnPublish(401, "Unauthorized");

                }

                StreamAuthorityInfo streamAuthorityInfo = StreamAuthorityInfo.getInstanceByHook(param);

                streamAuthorityInfo.setCallId(callId);

                streamAuthorityInfo.setSign(sign);

                // 鉴权通过

                redisCatchStorage.updateStreamAuthorityInfo(param.getApp(), param.getStream(), streamAuthorityInfo);

            }

        } else {

            zlmMediaListManager.sendStreamEvent(param.getApp(), param.getStream(), param.getMediaServerId());

        }





        HookResultForOnPublish result = HookResultForOnPublish.SUCCESS();

        result.setEnable_audio(true);

        taskExecutor.execute(() -> {

            ZlmHttpHookSubscribe.Event subscribe = this.subscribe.sendNotify(HookType.on_publish, json);

            if (subscribe != null) {

                subscribe.response(mediaInfo, param);

            }

        });



        ResultForOnPublish resultForOnPublish = mediaService.authenticatePublish(mediaServer, param.getApp(), param.getStream(), param.getParams());

        if (resultForOnPublish != null) {

@@ -253,231 +202,23 @@
        if (mediaServer == null) {

            return HookResult.SUCCESS();

        }



        if (param.isRegist()) {

            logger.info("[ZLM HOOK] 流注册, {}->{}->{}/{}", param.getMediaServerId(), param.getSchema(), param.getApp(), param.getStream());

            MediaArrivalEvent mediaArrivalEvent = MediaArrivalEvent.getInstance(this, param, mediaServer);

            applicationEventPublisher.publishEvent(mediaArrivalEvent);

        } else {

            logger.info("[ZLM HOOK] 流注销, {}->{}->{}/{}", param.getMediaServerId(), param.getSchema(), param.getApp(), param.getStream());

            MediaDepartureEvent mediaDepartureEvent = MediaDepartureEvent.getInstance(this, param, mediaServer);

            applicationEventPublisher.publishEvent(mediaDepartureEvent);

        if (!ObjectUtils.isEmpty(mediaServer.getTranscodeSuffix())

                && !"null".equalsIgnoreCase(mediaServer.getTranscodeSuffix())

                && param.getStream().endsWith(mediaServer.getTranscodeSuffix())  ) {

            return HookResult.SUCCESS();

        }

        if (param.getSchema().equalsIgnoreCase("rtsp")) {

            if (param.isRegist()) {

                logger.info("[ZLM HOOK] 流注册, {}->{}->{}/{}", param.getMediaServerId(), param.getSchema(), param.getApp(), param.getStream());

                MediaArrivalEvent mediaArrivalEvent = MediaArrivalEvent.getInstance(this, param, mediaServer);

                applicationEventPublisher.publishEvent(mediaArrivalEvent);

            } else {

                logger.info("[ZLM HOOK] 流注销, {}->{}->{}/{}", param.getMediaServerId(), param.getSchema(), param.getApp(), param.getStream());

                MediaDepartureEvent mediaDepartureEvent = MediaDepartureEvent.getInstance(this, param, mediaServer);

                applicationEventPublisher.publishEvent(mediaDepartureEvent);

            }

        }



        JSONObject json = (JSONObject) JSON.toJSON(param);

        taskExecutor.execute(() -> {

            ZlmHttpHookSubscribe.Event subscribe = this.subscribe.sendNotify(HookType.on_stream_changed, json);

            MediaServerItem mediaInfo = mediaServerService.getOne(param.getMediaServerId());

            if (mediaInfo == null) {

                logger.info("[ZLM HOOK] 流变化未找到ZLM, {}", param.getMediaServerId());

                return;

            }

            if (subscribe != null) {

                subscribe.response(mediaInfo, param);

            }



            List<OnStreamChangedHookParam.MediaTrack> tracks = param.getTracks();

            // TODO 重构此处逻辑

            if (param.isRegist()) {

                // 处理流注册的鉴权信息， 流注销这里不再删除鉴权信息，下次来了新的鉴权信息会对就的进行覆盖

                if (param.getOriginType() == OriginType.RTMP_PUSH.ordinal()

                        || param.getOriginType() == OriginType.RTSP_PUSH.ordinal()

                        || param.getOriginType() == OriginType.RTC_PUSH.ordinal()) {

                    StreamAuthorityInfo streamAuthorityInfo = redisCatchStorage.getStreamAuthorityInfo(param.getApp(), param.getStream());

                    if (streamAuthorityInfo == null) {

                        streamAuthorityInfo = StreamAuthorityInfo.getInstanceByHook(param);

                    } else {

                        streamAuthorityInfo.setOriginType(param.getOriginType());

                        streamAuthorityInfo.setOriginTypeStr(param.getOriginTypeStr());

                    }

                    redisCatchStorage.updateStreamAuthorityInfo(param.getApp(), param.getStream(), streamAuthorityInfo);

                }

            }

            if ("rtsp".equals(param.getSchema())) {

                logger.info("流变化：注册->{}, app->{}, stream->{}", param.isRegist(), param.getApp(), param.getStream());

                if (param.isRegist()) {

                    mediaServerService.addCount(param.getMediaServerId());

                } else {

                    mediaServerService.removeCount(param.getMediaServerId());

                }



                int updateStatusResult = streamProxyService.updateStatus(param.isRegist(), param.getApp(), param.getStream());

                if (updateStatusResult > 0) {



                }



                if ("rtp".equals(param.getApp()) && !param.isRegist()) {

                    InviteInfo inviteInfo = inviteStreamService.getInviteInfoByStream(null, param.getStream());

                    if (inviteInfo != null && (inviteInfo.getType() == InviteSessionType.PLAY || inviteInfo.getType() == InviteSessionType.PLAYBACK)) {

                        inviteStreamService.removeInviteInfo(inviteInfo);

                        storager.stopPlay(inviteInfo.getDeviceId(), inviteInfo.getChannelId());

                    }

                } else if ("broadcast".equals(param.getApp())) {

                    // 语音对讲推流  stream需要满足格式deviceId_channelId

                    if (param.getStream().indexOf("_") > 0) {

                        String[] streamArray = param.getStream().split("_");

                        if (streamArray.length == 2) {

                            String deviceId = streamArray[0];

                            String channelId = streamArray[1];

                            Device device = deviceService.getDevice(deviceId);

                            if (device != null) {

                                if (param.isRegist()) {

                                    if (audioBroadcastManager.exit(deviceId, channelId)) {

                                        playService.stopAudioBroadcast(deviceId, channelId);

                                    }

                                    // 开启语音对讲通道

                                    try {

                                        playService.audioBroadcastCmd(device, channelId, mediaInfo, param.getApp(), param.getStream(), 60, false, (msg) -> {

                                            logger.info("[语音对讲] 通道建立成功, device: {}, channel: {}", deviceId, channelId);

                                        });

                                    } catch (InvalidArgumentException | ParseException | SipException e) {

                                        logger.error("[命令发送失败] 语音对讲: {}", e.getMessage());

                                    }

                                } else {

                                    // 流注销

                                    playService.stopAudioBroadcast(deviceId, channelId);

                                }

                            } else {

                                logger.info("[语音对讲] 未找到设备：{}", deviceId);

                            }

                        }

                    }

                } else if ("talk".equals(param.getApp())) {

                    // 语音对讲推流  stream需要满足格式deviceId_channelId

                    if (param.getStream().indexOf("_") > 0) {

                        String[] streamArray = param.getStream().split("_");

                        if (streamArray.length == 2) {

                            String deviceId = streamArray[0];

                            String channelId = streamArray[1];

                            Device device = deviceService.getDevice(deviceId);

                            if (device != null) {

                                if (param.isRegist()) {

                                    if (audioBroadcastManager.exit(deviceId, channelId)) {

                                        playService.stopAudioBroadcast(deviceId, channelId);

                                    }

                                    // 开启语音对讲通道

                                    playService.talkCmd(device, channelId, mediaInfo, param.getStream(), (msg) -> {

                                        logger.info("[语音对讲] 通道建立成功, device: {}, channel: {}", deviceId, channelId);

                                    });

                                } else {

                                    // 流注销

                                    playService.stopTalk(device, channelId, param.isRegist());

                                }

                            } else {

                                logger.info("[语音对讲] 未找到设备：{}", deviceId);

                            }

                        }

                    }



                } else {

                    if (!"rtp".equals(param.getApp())) {

                        String type = OriginType.values()[param.getOriginType()].getType();

                        if (param.isRegist()) {

                            StreamAuthorityInfo streamAuthorityInfo = redisCatchStorage.getStreamAuthorityInfo(

                                    param.getApp(), param.getStream());

                            String callId = null;

                            if (streamAuthorityInfo != null) {

                                callId = streamAuthorityInfo.getCallId();

                            }

                            StreamInfo streamInfoByAppAndStream = mediaService.getStreamInfoByAppAndStream(mediaInfo,

                                    param.getApp(), param.getStream(), tracks, callId);

                            param.setStreamInfo(new StreamContent(streamInfoByAppAndStream));

                            redisCatchStorage.addStream(mediaInfo, type, param.getApp(), param.getStream(), param);

                            if (param.getOriginType() == OriginType.RTSP_PUSH.ordinal()

                                    || param.getOriginType() == OriginType.RTMP_PUSH.ordinal()

                                    || param.getOriginType() == OriginType.RTC_PUSH.ordinal()) {

                                param.setSeverId(userSetting.getServerId());

                                zlmMediaListManager.addPush(param);



                                // 冗余数据，自己系统中自用

                                redisCatchStorage.addPushListItem(param.getApp(), param.getStream(), param);

                            }

                        } else {

                            // 兼容流注销时类型从redis记录获取

                            OnStreamChangedHookParam onStreamChangedHookParam = redisCatchStorage.getStreamInfo(

                                    param.getApp(), param.getStream(), param.getMediaServerId());

                            if (onStreamChangedHookParam != null) {

                                type = OriginType.values()[onStreamChangedHookParam.getOriginType()].getType();

                                redisCatchStorage.removeStream(mediaInfo.getId(), type, param.getApp(), param.getStream());

                                if ("PUSH".equalsIgnoreCase(type)) {

                                    // 冗余数据，自己系统中自用

                                    redisCatchStorage.removePushListItem(param.getApp(), param.getStream(), param.getMediaServerId());

                                }

                            }

                            GbStream gbStream = storager.getGbStream(param.getApp(), param.getStream());

                            if (gbStream != null) {

//                           eventPublisher.catalogEventPublishForStream(null, gbStream, CatalogEvent.OFF);

                            }

                            zlmMediaListManager.removeMedia(param.getApp(), param.getStream());

                        }

                        GbStream gbStream = storager.getGbStream(param.getApp(), param.getStream());

                        if (gbStream != null) {

                            if (userSetting.isUsePushingAsStatus()) {

                                eventPublisher.catalogEventPublishForStream(null, gbStream, param.isRegist() ? CatalogEvent.ON : CatalogEvent.OFF);

                            }

                        }

                        if (type != null) {

                            // 发送流变化redis消息

                            JSONObject jsonObject = new JSONObject();

                            jsonObject.put("serverId", userSetting.getServerId());

                            jsonObject.put("app", param.getApp());

                            jsonObject.put("stream", param.getStream());

                            jsonObject.put("register", param.isRegist());

                            jsonObject.put("mediaServerId", param.getMediaServerId());

                            redisCatchStorage.sendStreamChangeMsg(type, jsonObject);

                        }

                    }

                }

                if (!param.isRegist()) {

                    List<SendRtpItem> sendRtpItems = redisCatchStorage.querySendRTPServerByStream(param.getStream());

                    if (!sendRtpItems.isEmpty()) {

                        for (SendRtpItem sendRtpItem : sendRtpItems) {

                            if (sendRtpItem == null) {

                                continue;

                            }



                            if (sendRtpItem.getApp().equals(param.getApp())) {

                                logger.info(sendRtpItem.toString());

                                if (userSetting.getServerId().equals(sendRtpItem.getServerId())) {

                                    MessageForPushChannel messageForPushChannel = MessageForPushChannel.getInstance(0,

                                            sendRtpItem.getApp(), sendRtpItem.getStream(), sendRtpItem.getChannelId(),

                                            sendRtpItem.getPlatformId(), null, userSetting.getServerId(), param.getMediaServerId());

                                    // 通知其他wvp停止发流

                                    redisCatchStorage.sendPushStreamClose(messageForPushChannel);

                                }else {

                                    String platformId = sendRtpItem.getPlatformId();

                                    ParentPlatform platform = storager.queryParentPlatByServerGBId(platformId);

                                    Device device = deviceService.getDevice(platformId);



                                    try {

                                        if (platform != null) {

                                            commanderFroPlatform.streamByeCmd(platform, sendRtpItem);

                                            redisCatchStorage.deleteSendRTPServer(platformId, sendRtpItem.getChannelId(),

                                                    sendRtpItem.getCallId(), sendRtpItem.getStream());

                                        } else {

                                            cmder.streamByeCmd(device, sendRtpItem.getChannelId(), param.getStream(), sendRtpItem.getCallId());

                                            if (sendRtpItem.getPlayType().equals(InviteStreamType.BROADCAST)

                                                    || sendRtpItem.getPlayType().equals(InviteStreamType.TALK)) {

                                                AudioBroadcastCatch audioBroadcastCatch = audioBroadcastManager.get(sendRtpItem.getDeviceId(), sendRtpItem.getChannelId());

                                                if (audioBroadcastCatch != null) {

                                                    // 来自上级平台的停止对讲

                                                    logger.info("[停止对讲] 来自上级，平台：{}, 通道：{}", sendRtpItem.getDeviceId(), sendRtpItem.getChannelId());

                                                    audioBroadcastManager.del(sendRtpItem.getDeviceId(), sendRtpItem.getChannelId());

                                                }

                                            }

                                        }

                                    } catch (SipException | InvalidArgumentException | ParseException |

                                             SsrcTransactionNotFoundException e) {

                                        logger.error("[命令发送失败] 发送BYE: {}", e.getMessage());

                                    }

                                }



                            }

                        }

                    }

                }

            }

        });

        return HookResult.SUCCESS();

    }



@@ -490,66 +231,23 @@


        logger.info("[ZLM HOOK]流无人观看：{}->{}->{}/{}", param.getMediaServerId(), param.getSchema(),

                param.getApp(), param.getStream());

        JSONObject ret = new JSONObject();

        ret.put("code", 0);

        // 国标类型的流

        if ("rtp".equals(param.getApp())) {

            ret.put("close", userSetting.getStreamOnDemand());

            // 国标流， 点播/录像回放/录像下载

            InviteInfo inviteInfo = inviteStreamService.getInviteInfoByStream(null, param.getStream());

            // 点播

            if (inviteInfo != null) {

                // 录像下载

                if (inviteInfo.getType() == InviteSessionType.DOWNLOAD) {

                    ret.put("close", false);

                    return ret;

                }

                // 收到无人观看说明流也没有在往上级推送

                if (redisCatchStorage.isChannelSendingRTP(inviteInfo.getChannelId())) {

                    List<SendRtpItem> sendRtpItems = redisCatchStorage.querySendRTPServerByChannelId(

                            inviteInfo.getChannelId());

                    if (!sendRtpItems.isEmpty()) {

                        for (SendRtpItem sendRtpItem : sendRtpItems) {

                            ParentPlatform parentPlatform = storager.queryParentPlatByServerGBId(sendRtpItem.getPlatformId());

                            try {

                                commanderFroPlatform.streamByeCmd(parentPlatform, sendRtpItem.getCallId());

                            } catch (SipException | InvalidArgumentException | ParseException e) {

                                logger.error("[命令发送失败] 国标级联 发送BYE: {}", e.getMessage());

                            }

                            redisCatchStorage.deleteSendRTPServer(parentPlatform.getServerGBId(), sendRtpItem.getChannelId(),

                                    sendRtpItem.getCallId(), sendRtpItem.getStream());

                            if (InviteStreamType.PUSH == sendRtpItem.getPlayType()) {

                                MessageForPushChannel messageForPushChannel = MessageForPushChannel.getInstance(0,

                                        sendRtpItem.getApp(), sendRtpItem.getStream(), sendRtpItem.getChannelId(),

                                        sendRtpItem.getPlatformId(), parentPlatform.getName(), userSetting.getServerId(), sendRtpItem.getMediaServerId());

                                messageForPushChannel.setPlatFormIndex(parentPlatform.getId());

                                redisCatchStorage.sendPlatformStopPlayMsg(messageForPushChannel);

                            }

                        }

                    }

                }

                Device device = deviceService.getDevice(inviteInfo.getDeviceId());

                if (device != null) {

                    try {

                        // 多查询一次防止已经被处理了

                        InviteInfo info = inviteStreamService.getInviteInfo(inviteInfo.getType(),

                                inviteInfo.getDeviceId(), inviteInfo.getChannelId(), inviteInfo.getStream());

                        if (info != null) {

                            cmder.streamByeCmd(device, inviteInfo.getChannelId(),

                                    inviteInfo.getStream(), null);

                        } else {

                            logger.info("[无人观看] 未找到设备的点播信息： {}， 流：{}", inviteInfo.getDeviceId(), param.getStream());

                        }

                    } catch (InvalidArgumentException | ParseException | SipException |

                             SsrcTransactionNotFoundException e) {

                        logger.error("[无人观看]点播， 发送BYE失败 {}", e.getMessage());

                    }

                } else {

                    logger.info("[无人观看] 未找到设备： {}，流：{}", inviteInfo.getDeviceId(), param.getStream());

                }



        MediaServer mediaInfo = mediaServerService.getOne(param.getMediaServerId());

        if (mediaInfo == null) {

            JSONObject ret = new JSONObject();

            ret.put("code", 0);

            return ret;

        }

        if (!ObjectUtils.isEmpty(mediaInfo.getTranscodeSuffix())

                && !"null".equalsIgnoreCase(mediaInfo.getTranscodeSuffix())

                && param.getStream().endsWith(mediaInfo.getTranscodeSuffix())  ) {

            param.setStream(param.getStream().substring(0, param.getStream().lastIndexOf(mediaInfo.getTranscodeSuffix()) -1 ));

        }



        JSONObject ret = new JSONObject();

        boolean close = mediaService.closeStreamOnNoneReader(param.getMediaServerId(), param.getApp(), param.getStream(), param.getSchema());

        ret.put("code", close);

        ret.put("code", 0);

        ret.put("close", close);

        return ret;

    }



@@ -609,22 +307,16 @@
        if (!"rtp".equals(param.getApp())) {

            return HookResult.SUCCESS();

        }

        taskExecutor.execute(() -> {

            List<SendRtpItem> sendRtpItems = redisCatchStorage.querySendRTPServerByStream(param.getStream());

            if (sendRtpItems.size() > 0) {

                for (SendRtpItem sendRtpItem : sendRtpItems) {

                    ParentPlatform parentPlatform = storager.queryParentPlatByServerGBId(sendRtpItem.getPlatformId());

                    ssrcFactory.releaseSsrc(sendRtpItem.getMediaServerId(), sendRtpItem.getSsrc());

                    try {

                        commanderFroPlatform.streamByeCmd(parentPlatform, sendRtpItem.getCallId());

                    } catch (SipException | InvalidArgumentException | ParseException e) {

                        logger.error("[命令发送失败] 国标级联 发送BYE: {}", e.getMessage());

                    }

                    redisCatchStorage.deleteSendRTPServer(parentPlatform.getServerGBId(), sendRtpItem.getChannelId(),

                            sendRtpItem.getCallId(), sendRtpItem.getStream());

                }

        try {

            MediaSendRtpStoppedEvent event = new MediaSendRtpStoppedEvent(this);

            MediaServer mediaServerItem = mediaServerService.getOne(param.getMediaServerId());

            if (mediaServerItem != null) {

                event.setMediaServer(mediaServerItem);

                applicationEventPublisher.publishEvent(event);

            }

        });

        }catch (Exception e) {

            logger.info("[ZLM-HOOK-rtp发送关闭] 发送通知失败 ", e);

        }



        return HookResult.SUCCESS();

    }

@@ -673,23 +365,5 @@
        }



        return HookResult.SUCCESS();

    }



    private Map<String, String> urlParamToMap(String params) {

        HashMap<String, String> map = new HashMap<>();

        if (ObjectUtils.isEmpty(params)) {

            return map;

        }

        String[] paramsArray = params.split("&");

        if (paramsArray.length == 0) {

            return map;

        }

        for (String param : paramsArray) {

            String[] paramArray = param.split("=");

            if (paramArray.length == 2) {

                map.put(paramArray[0], paramArray[1]);

            }

        }

        return map;

    }

}