Support prometheus and opentracing filter

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/couchbase/goutils v0.0.0-20180530154633-e865a1461c8a // indirect
 	github.com/elastic/go-elasticsearch/v6 v6.8.5
 	github.com/elazarl/go-bindata-assetfs v1.0.0
+	github.com/go-kit/kit v0.9.0
 	github.com/go-redis/redis v6.14.2+incompatible
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/gogo/protobuf v1.1.1
@@ -21,6 +22,7 @@ require (
 	github.com/ledisdb/ledisdb v0.0.0-20200510135210-d35789ec47e6
 	github.com/lib/pq v1.0.0
 	github.com/mattn/go-sqlite3 v2.0.3+incompatible
+	github.com/opentracing/opentracing-go v1.2.0
 	github.com/pelletier/go-toml v1.2.0 // indirect
 	github.com/prometheus/client_golang v1.7.0
 	github.com/shiena/ansicolor v0.0.0-20151119151921-a422bbe96644
@@ -29,7 +31,8 @@ require (
 	github.com/syndtr/goleveldb v0.0.0-20181127023241-353a9fca669c // indirect
 	github.com/wendal/errors v0.0.0-20130201093226-f66c77a7882b // indirect
 	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550
-	golang.org/x/tools v0.0.0-20200117065230-39095c1d176c
+	golang.org/x/net v0.0.0-20190620200207-3b0461eec859 // indirect
+	google.golang.org/grpc v1.31.0 // indirect
 	gopkg.in/yaml.v2 v2.2.8
 )
 

go.sum

@@ -1,3 +1,4 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Knetic/govaluate v3.0.0+incompatible h1:7o6+MAPhYTCF0+fdvoz1xDedhRb4f6s9Tn1Tt7/WTEg=
@@ -20,10 +21,13 @@ github.com/bradfitz/gomemcache v0.0.0-20180710155616-bc664df96737 h1:rRISKWyXfVx
 github.com/bradfitz/gomemcache v0.0.0-20180710155616-bc664df96737/go.mod h1:PmM6Mmwb0LSuEubjR8N7PtNe1KxZLtOUHtbeikc5h60=
 github.com/casbin/casbin v1.7.0 h1:PuzlE8w0JBg/DhIqnkF1Dewf3z+qmUZMVN07PonvVUQ=
 github.com/casbin/casbin v1.7.0/go.mod h1:c67qKN6Oum3UF5Q1+BByfFxkwKvhwW57ITjqwtzR1KE=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloudflare/golz4 v0.0.0-20150217214814-ef862a3cdc58 h1:F1EaeKL/ta07PY/k9Os/UFtwERei2/XzGemhpGnBKNg=
 github.com/cloudflare/golz4 v0.0.0-20150217214814-ef862a3cdc58/go.mod h1:EOBUe0h4xcZ5GoxqC5SDxFQ8gwyZPKQoEzownBlhI80=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/couchbase/go-couchbase v0.0.0-20200519150804-63f3cdb75e0d h1:OMrhQqj1QCyDT2sxHCDjE+k8aMdn2ngTCGG7g4wrdLo=
 github.com/couchbase/go-couchbase v0.0.0-20200519150804-63f3cdb75e0d/go.mod h1:TWI8EKQMs5u5jLKW/tsb9VwauIrMIxQG1r5fMsswK5U=
 github.com/couchbase/gomemcached v0.0.0-20200526233749-ec430f949808 h1:8s2l8TVUwMXl6tZMe3+hPCRJ25nQXiA3d1x622JtOqc=
@@ -41,25 +45,34 @@ github.com/elastic/go-elasticsearch/v6 v6.8.5 h1:U2HtkBseC1FNBmDr0TR2tKltL6FxoY+
 github.com/elastic/go-elasticsearch/v6 v6.8.5/go.mod h1:UwaDJsD3rWLM5rKNFzv9hgox93HoX8utj1kxD9aFUcI=
 github.com/elazarl/go-bindata-assetfs v1.0.0 h1:G/bYguwHIzWq9ZoyUQqrjTmJbbYn3j3CKKpKinvZLFk=
 github.com/elazarl/go-bindata-assetfs v1.0.0/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/glendc/gopher-json v0.0.0-20170414221815-dc4743023d0c/go.mod h1:Gja1A+xZ9BoviGJNA2E9vFkPjjsl+CoJxSXiQM1UXtw=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/kit v0.9.0 h1:wDJmvq38kDhkVxi50ni9ykkdUr1PKgqKOoi01fa0Mdk=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
+github.com/go-logfmt/logfmt v0.4.0 h1:MP4Eh7ZCb31lleYCFuwm0oe4/YGak+5l1vA2NOE80nA=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-redis/redis v6.14.2+incompatible h1:UE9pLhzmWf+xHNmZsoccjXosPicuiNaInPgym8nzfg0=
 github.com/go-redis/redis v6.14.2+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
 github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
 github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-yaml/yaml v0.0.0-20180328195020-5420a8b6744d h1:xy93KVe+KrIIwWDEAfQBdIfsiHJkepbYsDr+VY3g9/o=
 github.com/go-yaml/yaml v0.0.0-20180328195020-5420a8b6744d/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 github.com/gogo/protobuf v1.1.1 h1:72R+M5VuhED/KujmZVcIquuo8mBgX4oVda//DQb3PXo=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
@@ -72,6 +85,7 @@ github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pO
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/gomodule/redigo v2.0.0+incompatible h1:K/R+8tc58AaqLkqG2Ol3Qk+DR/TlNuhuh457pBFPtt0=
 github.com/gomodule/redigo v2.0.0+incompatible/go.mod h1:B4C85qUVwatsJoIUNIfCRsp7qO0iAmpGFZ4EELWSbC4=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
@@ -85,6 +99,7 @@ github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCV
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 h1:T+h1c/A9Gawja4Y9mFVWj2vyii2bbUNDw3kt9VxK2EY=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -110,11 +125,12 @@ github.com/onsi/ginkgo v1.12.0 h1:Iw5WCbBcaAAd0fpRb1c9r5YCylv4XDoCSigm1zLevwU=
 github.com/onsi/ginkgo v1.12.0/go.mod h1:oUhWkIvk5aDxtKvDDuw8gItl8pKl42LzjC9KZE0HfGg=
 github.com/onsi/gomega v1.7.1 h1:K0jcRCwNQM3vFGh1ppMtDh/+7ApJrjldlX8fA0jDTLQ=
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
+github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
+github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/pelletier/go-toml v1.0.1/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181zc=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/peterh/liner v1.0.1-0.20171122030339-3681c2a91233/go.mod h1:xIteQHvHuaLYG9IFj6mSxM0fCKrs34IrEQUhOYuGPHc=
-github.com/pingcap/tidb v2.0.11+incompatible/go.mod h1:I8C6jrPINP2rrVunTRd7C9fRRhQrtR43S1/CL5ix/yQ=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
@@ -127,6 +143,7 @@ github.com/prometheus/client_golang v1.7.0 h1:wCi7urQOGBsYcQROHqpUUX4ct84xp40t9R
 github.com/prometheus/client_golang v1.7.0/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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@@ -164,19 +181,28 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -189,10 +215,21 @@ golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1 h1:ogLJMz+qpzav7lGMh10LMvAkM
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20200117065230-39095c1d176c/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.31.0 h1:T7P4R73V3SSDPhH7WW7ATbfViLtmamH0DKrP3f9AuDI=
+google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -215,3 +252,5 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

metric/prometheus.go

@@ -27,6 +27,8 @@ import (
 	"github.com/astaxie/beego/logs"
 )
 
+// Deprecated: we will removed this function in 2.1.0
+// please use pkg/web/filter/prometheus#FilterChain
 func PrometheusMiddleWare(next http.Handler) http.Handler {
 	summaryVec := prometheus.NewSummaryVec(prometheus.SummaryOpts{
 		Name:      "beego",

pkg/web/doc.go

@@ -0,0 +1,16 @@
+// Copyright 2020 beego 
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// we will move all web related codes here
+package web

pkg/web/filter/opentracing/filter.go

@@ -0,0 +1,56 @@
+// Copyright 2020 beego 
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package opentracing
+
+import (
+	"github.com/opentracing/opentracing-go"
+
+	beego "github.com/astaxie/beego/pkg"
+	"github.com/astaxie/beego/pkg/context"
+)
+
+// FilterChainBuilder provides an extension point that we can support more configurations if necessary
+type FilterChainBuilder struct {
+	// CustomSpanFunc makes users to custom the span.
+	CustomSpanFunc func(span opentracing.Span, ctx *context.Context)
+}
+
+
+func (builder *FilterChainBuilder) FilterChain(next beego.FilterFunc) beego.FilterFunc {
+	// TODO, if we support multiple servers, this need to be changed
+	cr := beego.BeeApp.Handlers
+	return func(ctx *context.Context) {
+		span := opentracing.SpanFromContext(ctx.Request.Context())
+		spanCtx := ctx.Request.Context()
+		if span == nil {
+			operationName := ctx.Input.URL()
+			// it means that there is not any span, so we create a span as the root span.
+			route, found := cr.FindRouter(ctx)
+			if found {
+				operationName = route.GetPattern()
+			}
+			span, spanCtx = opentracing.StartSpanFromContext(spanCtx, operationName)
+		}
+		defer span.Finish()
+		next(ctx)
+		// if you think we need to do more things, feel free to create an issue to tell us
+		span.SetTag("status", ctx.Output.Status)
+		span.SetTag("method", ctx.Input.Method())
+		span.SetTag("route", ctx.Input.GetData("RouterPattern"))
+		if builder.CustomSpanFunc != nil {
+			builder.CustomSpanFunc(span, ctx)
+		}
+	}
+}

pkg/web/filter/opentracing/filter_test.go

@@ -0,0 +1,47 @@
+// Copyright 2020 beego 
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package opentracing
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/opentracing/opentracing-go"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/astaxie/beego/pkg/context"
+)
+
+func TestFilterChainBuilder_FilterChain(t *testing.T) {
+	builder := &FilterChainBuilder{
+		CustomSpanFunc: func(span opentracing.Span, ctx *context.Context) {
+			span.SetTag("aa", "bbb")
+		},
+	}
+
+	ctx := context.NewContext()
+	r, _ := http.NewRequest("GET", "/prometheus/user", nil)
+	w := httptest.NewRecorder()
+	ctx.Reset(w, r)
+	ctx.Input.SetData("RouterPattern", "my-route")
+
+	filterFunc := builder.FilterChain(func(ctx *context.Context) {
+		ctx.Input.SetData("opentracing", true)
+	})
+
+	filterFunc(ctx)
+	assert.True(t, ctx.Input.GetData("opentracing").(bool))
+}

pkg/web/filter/prometheus/filter.go

@@ -1,4 +1,4 @@
-// Copyright 2020 astaxie
+// Copyright 2020 beego 
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,22 +12,27 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package metric
+package prometheus
 
 import (
-	"net/http"
-	"reflect"
 	"strconv"
 	"strings"
 	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 
-	"github.com/astaxie/beego/pkg"
+	beego "github.com/astaxie/beego/pkg"
-	"github.com/astaxie/beego/pkg/logs"
+	"github.com/astaxie/beego/pkg/context"
 )
 
-func PrometheusMiddleWare(next http.Handler) http.Handler {
+// FilterChainBuilder is an extension point,
+// when we want to support some configuration,
+// please use this structure
+type FilterChainBuilder struct {
+}
+
+// FilterChain returns a FilterFunc. The filter will records some metrics
+func (builder *FilterChainBuilder) FilterChain(next beego.FilterFunc) beego.FilterFunc {
 	summaryVec := prometheus.NewSummaryVec(prometheus.SummaryOpts{
 		Name:      "beego",
 		Subsystem: "http_request",
@@ -43,12 +48,12 @@ func PrometheusMiddleWare(next http.Handler) http.Handler {
 
 	registerBuildInfo()
 
-	return http.HandlerFunc(func(writer http.ResponseWriter, q *http.Request) {
+	return func(ctx *context.Context) {
-		start := time.Now()
+		startTime := time.Now()
-		next.ServeHTTP(writer, q)
+		next(ctx)
-		end := time.Now()
+		endTime := time.Now()
-		go report(end.Sub(start), writer, q, summaryVec)
+		go report(endTime.Sub(startTime), ctx, summaryVec)
-	})
+	}
 }
 
 func registerBuildInfo() {
@@ -73,27 +78,9 @@ func registerBuildInfo() {
 	buildInfo.WithLabelValues().Set(1)
 }
 
-func report(dur time.Duration, writer http.ResponseWriter, q *http.Request, vec *prometheus.SummaryVec) {
+func report(dur time.Duration, ctx *context.Context, vec *prometheus.SummaryVec) {
-	ctrl := beego.BeeApp.Handlers
+	status := ctx.Output.Status
-	ctx := ctrl.GetContext()
+	ptn := ctx.Input.GetData("RouterPattern").(string)
-	ctx.Reset(writer, q)
-	defer ctrl.GiveBackContext(ctx)
-
-	// We cannot read the status code from q.Response.StatusCode
-	// since the http server does not set q.Response. So q.Response is nil
-	// Thus, we use reflection to read the status from writer whose concrete type is http.response
-	responseVal := reflect.ValueOf(writer).Elem()
-	field := responseVal.FieldByName("status")
-	status := -1
-	if field.IsValid() && field.Kind() == reflect.Int {
-		status = int(field.Int())
-	}
-	ptn := "UNKNOWN"
-	if rt, found := ctrl.FindRouter(ctx); found {
-		ptn = rt.GetPattern()
-	} else {
-		logs.Warn("we can not find the router info for this request, so request will be recorded as UNKNOWN: " + q.URL.String())
-	}
 	ms := dur / time.Millisecond
-	vec.WithLabelValues(ptn, q.Method, strconv.Itoa(status), strconv.Itoa(int(ms))).Observe(float64(ms))
+	vec.WithLabelValues(ptn, ctx.Input.Method(), strconv.Itoa(status), strconv.Itoa(int(ms))).Observe(float64(ms))
 }

pkg/web/filter/prometheus/filter_test.go

@@ -1,4 +1,4 @@
-// Copyright 2020 astaxie
+// Copyright 2020 beego 
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,31 +12,29 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package metric
+package prometheus
 
 import (
 	"net/http"
-	"net/url"
+	"net/http/httptest"
 	"testing"
-	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"github.com/stretchr/testify/assert"
 
 	"github.com/astaxie/beego/pkg/context"
 )
 
-func TestPrometheusMiddleWare(t *testing.T) {
+func TestFilterChain(t *testing.T) {
-	middleware := PrometheusMiddleWare(http.HandlerFunc(func(http.ResponseWriter, *http.Request) {}))
+	filter := (&FilterChainBuilder{}).FilterChain(func(ctx *context.Context) {
-	writer := &context.Response{}
+		// do nothing
-	request := &http.Request{
+		ctx.Input.SetData("invocation", true)
-		URL: &url.URL{
+	})
-			Host:    "localhost",
-			RawPath: "/a/b/c",
-		},
-		Method: "POST",
-	}
-	vec := prometheus.NewSummaryVec(prometheus.SummaryOpts{}, []string{"pattern", "method", "status", "duration"})
 
-	report(time.Second, writer, request, vec)
+	ctx := context.NewContext()
-	middleware.ServeHTTP(writer, request)
+	r, _ := http.NewRequest("GET", "/prometheus/user", nil)
+	w := httptest.NewRecorder()
+	ctx.Reset(w, r)
+	ctx.Input.SetData("RouterPattern", "my-route")
+	filter(ctx)
+	assert.True(t, ctx.Input.GetData("invocation").(bool))
 }