refine the stat api, support query specified stream.

@@ -470,40 +470,37 @@ int SrsGoApiStreams::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r)
     int ret = ERROR_SUCCESS;
     SrsStatistic* stat = SrsStatistic::instance();
     std::stringstream ss;
-
-    if (r->is_http_delete()) {
-        // path: {pattern}{stream_id}
-        // e.g. /api/v1/streams/100     pattern= /api/v1/streams/, stream_id=100
-        string sid = r->path().substr((int)entry->pattern.length());
-        if (sid.empty()) {
-            ret = ERROR_REQUEST_DATA;
-            srs_error("invalid param, stream_id=%s. ret=%d", sid.c_str(), ret);
-
-            ss << SRS_JOBJECT_START
-                   << SRS_JFIELD_ERROR(ret)
-               << SRS_JOBJECT_END;
-
-            return srs_http_response_json(w, ss.str());
-        }
-
-        int stream_id = ::atoi(sid.c_str());
-        SrsStatisticStream* stream = stat->find_stream(stream_id);
-        if (stream == NULL) {
-            ret = ERROR_RTMP_STREAM_NOT_FOUND;
-            srs_error("stream stream_id=%s not found. ret=%d", sid.c_str(), ret);
-
-            ss << SRS_JOBJECT_START
-                   << SRS_JFIELD_ERROR(ret)
-               << SRS_JOBJECT_END;
-
-            return srs_http_response_json(w, ss.str());
+    
+    // path: {pattern}{stream_id}
+    // e.g. /api/v1/streams/100     pattern= /api/v1/streams/, stream_id=100
+    int sid = -1;
+    if (true) {
+        string stream_id = r->path().substr((int)entry->pattern.length());
+        if (!stream_id.empty()) {
+            sid = ::atoi(stream_id.c_str());
         }
+    }
+    
+    SrsStatisticStream* stream = NULL;
+    if (sid >= 0 && (stream = stat->find_stream(sid)) == NULL) {
+        ret = ERROR_RTMP_STREAM_NOT_FOUND;
+        srs_error("stream stream_id=%d not found. ret=%d", sid, ret);
+        
+        ss << SRS_JOBJECT_START
+                << SRS_JFIELD_ERROR(ret)
+            << SRS_JOBJECT_END;
+        
+        return srs_http_response_json(w, ss.str());
+    }
 
+    if (r->is_http_delete()) {
+        srs_assert(stream);
+        
         SrsSource* source = SrsSource::fetch(stream->vhost->vhost, stream->app, stream->stream);
         if (source) {
             source->set_expired();
             srs_warn("disconnent stream=%d successfully. vhost=%s, app=%s, stream=%s.", 
-                stream_id, stream->vhost->vhost.c_str(), stream->app.c_str(), stream->stream.c_str());
+                sid, stream->vhost->vhost.c_str(), stream->app.c_str(), stream->stream.c_str());
         } else {
             ret = ERROR_SOURCE_NOT_FOUND;
         }
@@ -513,18 +510,31 @@ int SrsGoApiStreams::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r)
            << SRS_JOBJECT_END;
 
         return srs_http_response_json(w, ss.str());
-    } else {
+    } else if (r->is_http_get()) {
         std::stringstream data;
-        int ret = stat->dumps_streams(data);
         
-        ss << SRS_JOBJECT_START
-               << SRS_JFIELD_ERROR(ret) << SRS_JFIELD_CONT
-               << SRS_JFIELD_ORG("server", stat->server_id()) << SRS_JFIELD_CONT
-               << SRS_JFIELD_ORG("streams", data.str())
-           << SRS_JOBJECT_END;
+        if (!stream) {
+            ret = stat->dumps_streams(data);
+            
+            ss << SRS_JOBJECT_START
+                    << SRS_JFIELD_ERROR(ret) << SRS_JFIELD_CONT
+                    << SRS_JFIELD_ORG("server", stat->server_id()) << SRS_JFIELD_CONT
+                    << SRS_JFIELD_ORG("streams", data.str())
+                << SRS_JOBJECT_END;
+        } else {
+            ret = stream->dumps(data);
+            
+            ss << SRS_JOBJECT_START
+                    << SRS_JFIELD_ERROR(ret) << SRS_JFIELD_CONT
+                    << SRS_JFIELD_ORG("server", stat->server_id()) << SRS_JFIELD_CONT
+                    << SRS_JFIELD_ORG("stream", data.str())
+                << SRS_JOBJECT_END;
+        }
         
         return srs_http_response_json(w, ss.str());
     }
+    
+    return ret;
 }
 
 SrsGoApiError::SrsGoApiError()

@@ -47,6 +47,8 @@ SrsStatisticVhost::SrsStatisticVhost()
     
     kbps = new SrsKbps();
     kbps->set_io(NULL, NULL);
+    
+    nb_clients = 0;
 }
 
 SrsStatisticVhost::~SrsStatisticVhost()
@@ -54,6 +56,31 @@ SrsStatisticVhost::~SrsStatisticVhost()
     srs_freep(kbps);
 }
 
+int SrsStatisticVhost::dumps(stringstream& ss)
+{
+    int ret = ERROR_SUCCESS;
+    
+    // dumps the config of vhost.
+    bool hls_enabled = _srs_config->get_hls_enabled(vhost);
+    
+    ss << SRS_JOBJECT_START
+            << SRS_JFIELD_ORG("id", id) << SRS_JFIELD_CONT
+            << SRS_JFIELD_STR("name", vhost) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("cleints", nb_clients) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("send_bytes", kbps->get_send_bytes()) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("recv_bytes", kbps->get_recv_bytes()) << SRS_JFIELD_CONT
+            << SRS_JFIELD_NAME("hls") << SRS_JOBJECT_START
+                << SRS_JFIELD_BOOL("enabled", hls_enabled);
+    if (hls_enabled) {
+        ss                                                  << SRS_JFIELD_CONT;
+        ss      << SRS_JFIELD_ORG("fragment", _srs_config->get_hls_fragment(vhost));
+    }
+    ss      << SRS_JOBJECT_END
+        << SRS_JOBJECT_END;
+    
+    return ret;
+}
+
 SrsStatisticStream::SrsStatisticStream()
 {
     id = srs_generate_id();
@@ -73,6 +100,8 @@ SrsStatisticStream::SrsStatisticStream()
     
     kbps = new SrsKbps();
     kbps->set_io(NULL, NULL);
+    
+    nb_clients = 0;
 }
 
 SrsStatisticStream::~SrsStatisticStream()
@@ -80,6 +109,48 @@ SrsStatisticStream::~SrsStatisticStream()
     srs_freep(kbps);
 }
 
+int SrsStatisticStream::dumps(stringstream& ss)
+{
+    int ret = ERROR_SUCCESS;
+    
+    ss << SRS_JOBJECT_START
+            << SRS_JFIELD_ORG("id", id) << SRS_JFIELD_CONT
+            << SRS_JFIELD_STR("name", stream) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("vhost", vhost->id) << SRS_JFIELD_CONT
+            << SRS_JFIELD_STR("app", app) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("clients", nb_clients) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("send_bytes", kbps->get_send_bytes()) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("recv_bytes", kbps->get_recv_bytes()) << SRS_JFIELD_CONT
+            << SRS_JFIELD_ORG("live_ms", srs_get_system_time_ms()) << SRS_JFIELD_CONT
+            << SRS_JFIELD_STR("status", status) << SRS_JFIELD_CONT;
+    
+    if (!has_video) {
+        ss  << SRS_JFIELD_NULL("video") << SRS_JFIELD_CONT;
+    } else {
+        ss  << SRS_JFIELD_NAME("video") << SRS_JOBJECT_START
+                << SRS_JFIELD_STR("codec", srs_codec_video2str(vcodec)) << SRS_JFIELD_CONT
+                << SRS_JFIELD_STR("profile", srs_codec_avc_profile2str(avc_profile)) << SRS_JFIELD_CONT
+                << SRS_JFIELD_ORG("level", srs_codec_avc_level2str(avc_level))
+                << SRS_JOBJECT_END
+            << SRS_JFIELD_CONT;
+    }
+    
+    if (!has_audio) {
+        ss  << SRS_JFIELD_NULL("audio");
+    } else {
+        ss  << SRS_JFIELD_NAME("audio") << SRS_JOBJECT_START
+                << SRS_JFIELD_STR("codec", srs_codec_audio2str(acodec)) << SRS_JFIELD_CONT
+                << SRS_JFIELD_ORG("sample_rate", (int)flv_sample_rates[asample_rate]) << SRS_JFIELD_CONT
+                << SRS_JFIELD_ORG("channel", (int)asound_type + 1) << SRS_JFIELD_CONT
+                << SRS_JFIELD_STR("profile", srs_codec_aac_object2str(aac_object))
+            << SRS_JOBJECT_END;
+    }
+    
+    ss << SRS_JOBJECT_END;
+    
+    return ret;
+}
+
 void SrsStatisticStream::publish()
 {
     status = STATISTIC_STREAM_STATUS_PUBLISHING;
@@ -215,6 +286,10 @@ int SrsStatistic::on_client(int id, SrsRequest* req)
     } else {
         client = clients[id];
     }
+    
+    // got client.
+    stream->nb_clients++;
+    vhost->nb_clients++;
 
     return ret;
 }
@@ -222,12 +297,19 @@ int SrsStatistic::on_client(int id, SrsRequest* req)
 void SrsStatistic::on_disconnect(int id)
 {
     std::map<int, SrsStatisticClient*>::iterator it;
-    it = clients.find(id);
-    if (it != clients.end()) {
-        SrsStatisticClient* client = it->second;
-        srs_freep(client);
-        clients.erase(it);
+    if ((it = clients.find(id)) == clients.end()) {
+        return;
     }
+
+    SrsStatisticClient* client = it->second;
+    SrsStatisticStream* stream = client->stream;
+    SrsStatisticVhost* vhost = stream->vhost;
+    
+    srs_freep(client);
+    clients.erase(it);
+    
+    stream->nb_clients--;
+    vhost->nb_clients--;
 }
 
 void SrsStatistic::kbps_add_delta(SrsConnection* conn)
@@ -286,26 +368,14 @@ int SrsStatistic::dumps_vhosts(stringstream& ss)
     std::map<std::string, SrsStatisticVhost*>::iterator it;
     for (it = vhosts.begin(); it != vhosts.end(); it++) {
         SrsStatisticVhost* vhost = it->second;
+        
         if (it != vhosts.begin()) {
             ss << SRS_JFIELD_CONT;
         }
         
-        // dumps the config of vhost.
-        bool hls_enabled = _srs_config->get_hls_enabled(vhost->vhost);
-
-        ss << SRS_JOBJECT_START
-                << SRS_JFIELD_ORG("id", vhost->id) << SRS_JFIELD_CONT
-                << SRS_JFIELD_STR("name", vhost->vhost) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("send_bytes", vhost->kbps->get_send_bytes()) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("recv_bytes", vhost->kbps->get_recv_bytes()) << SRS_JFIELD_CONT
-                << SRS_JFIELD_NAME("hls") << SRS_JOBJECT_START
-                    << SRS_JFIELD_BOOL("enabled", hls_enabled);
-        if (hls_enabled) {
-            ss                                                  << SRS_JFIELD_CONT;
-            ss      << SRS_JFIELD_ORG("fragment", _srs_config->get_hls_fragment(vhost->vhost));
+        if ((ret = vhost->dumps(ss)) != ERROR_SUCCESS) {
+            return ret;
         }
-        ss      << SRS_JOBJECT_END
-            << SRS_JOBJECT_END;
     }
     ss << SRS_JARRAY_END;
 
@@ -320,55 +390,14 @@ int SrsStatistic::dumps_streams(stringstream& ss)
     std::map<std::string, SrsStatisticStream*>::iterator it;
     for (it = streams.begin(); it != streams.end(); it++) {
         SrsStatisticStream* stream = it->second;
+        
         if (it != streams.begin()) {
             ss << SRS_JFIELD_CONT;
         }
 
-        int client_num = 0;
-        std::map<int, SrsStatisticClient*>::iterator it_client;
-        for (it_client = clients.begin(); it_client != clients.end(); it_client++) {
-            SrsStatisticClient* client = it_client->second;
-            if (client->stream == stream) {
-                client_num++;
-            }
+        if ((ret = stream->dumps(ss)) != ERROR_SUCCESS) {
+            return ret;
         }
-
-        ss << SRS_JOBJECT_START
-                << SRS_JFIELD_ORG("id", stream->id) << SRS_JFIELD_CONT
-                << SRS_JFIELD_STR("name", stream->stream) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("vhost", stream->vhost->id) << SRS_JFIELD_CONT
-                << SRS_JFIELD_STR("app", stream->app) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("clients", client_num) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("send_bytes", stream->kbps->get_send_bytes()) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("recv_bytes", stream->kbps->get_recv_bytes()) << SRS_JFIELD_CONT
-                << SRS_JFIELD_ORG("live_ms", srs_get_system_time_ms()) << SRS_JFIELD_CONT
-                << SRS_JFIELD_STR("status", stream->status) << SRS_JFIELD_CONT;
-        
-        if (!stream->has_video) {
-            ss  << SRS_JFIELD_NULL("video") << SRS_JFIELD_CONT;
-        } else {
-            ss  << SRS_JFIELD_NAME("video")
-                    << SRS_JOBJECT_START
-                        << SRS_JFIELD_STR("codec", srs_codec_video2str(stream->vcodec)) << SRS_JFIELD_CONT
-                        << SRS_JFIELD_STR("profile", srs_codec_avc_profile2str(stream->avc_profile)) << SRS_JFIELD_CONT
-                        << SRS_JFIELD_ORG("level", srs_codec_avc_level2str(stream->avc_level))
-                    << SRS_JOBJECT_END
-                << SRS_JFIELD_CONT;
-        }
-                
-        if (!stream->has_audio) {
-            ss  << SRS_JFIELD_NULL("audio");
-        } else {
-            ss  << SRS_JFIELD_NAME("audio")
-                    << SRS_JOBJECT_START
-                        << SRS_JFIELD_STR("codec", srs_codec_audio2str(stream->acodec)) << SRS_JFIELD_CONT
-                        << SRS_JFIELD_ORG("sample_rate", (int)flv_sample_rates[stream->asample_rate]) << SRS_JFIELD_CONT
-                        << SRS_JFIELD_ORG("channel", (int)stream->asound_type + 1) << SRS_JFIELD_CONT
-                        << SRS_JFIELD_STR("profile", srs_codec_aac_object2str(stream->aac_object))
-                    << SRS_JOBJECT_END;
-        }
-        
-        ss << SRS_JOBJECT_END;
     }
     ss << SRS_JARRAY_END;
     

@@ -47,6 +47,7 @@ struct SrsStatisticVhost
 public:
     int64_t id;
     std::string vhost;
+    int nb_clients;
 public:
     /**
     * vhost total kbps.
@@ -55,6 +56,8 @@ public:
 public:
     SrsStatisticVhost();
     virtual ~SrsStatisticVhost();
+public:
+    virtual int dumps(std::stringstream& ss);
 };
 
 struct SrsStatisticStream
@@ -66,6 +69,7 @@ public:
     std::string stream;
     std::string url;
     std::string status;
+    int nb_clients;
 public:
     /**
     * stream total kbps.
@@ -94,6 +98,8 @@ public:
     SrsStatisticStream();
     virtual ~SrsStatisticStream();
 public:
+    virtual int dumps(std::stringstream& ss);
+public:
     /**
     * publish the stream.
     */