Add simple key value service
Change-Id: Ic04ddbd26b3111ff95d78f3046ace7fc69916219
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5baa59d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+db
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c17a7d8
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,46 @@
+module github.com/KorAP/Kalamar-Plugin-ExternalSale
+
+go 1.19
+
+require (
+ github.com/dgraph-io/badger/v3 v3.2103.5
+ github.com/gin-gonic/gin v1.8.1
+ github.com/stretchr/testify v1.7.1
+)
+
+require (
+ github.com/cespare/xxhash v1.1.0 // indirect
+ github.com/cespare/xxhash/v2 v2.1.1 // indirect
+ github.com/davecgh/go-spew v1.1.1 // indirect
+ github.com/dgraph-io/ristretto v0.1.1 // indirect
+ github.com/dustin/go-humanize v1.0.0 // indirect
+ github.com/gin-contrib/sse v0.1.0 // indirect
+ github.com/go-playground/locales v0.14.0 // indirect
+ github.com/go-playground/universal-translator v0.18.0 // indirect
+ github.com/go-playground/validator/v10 v10.10.0 // indirect
+ github.com/goccy/go-json v0.9.7 // indirect
+ github.com/gogo/protobuf v1.3.2 // indirect
+ github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
+ github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
+ github.com/golang/protobuf v1.5.0 // indirect
+ github.com/golang/snappy v0.0.3 // indirect
+ github.com/google/flatbuffers v1.12.1 // indirect
+ github.com/json-iterator/go v1.1.12 // indirect
+ github.com/klauspost/compress v1.12.3 // indirect
+ github.com/leodido/go-urn v1.2.1 // indirect
+ github.com/mattn/go-isatty v0.0.14 // indirect
+ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+ github.com/modern-go/reflect2 v1.0.2 // indirect
+ github.com/pelletier/go-toml/v2 v2.0.1 // indirect
+ github.com/pkg/errors v0.9.1 // indirect
+ github.com/pmezard/go-difflib v1.0.0 // indirect
+ github.com/ugorji/go/codec v1.2.7 // indirect
+ go.opencensus.io v0.22.5 // indirect
+ golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
+ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect
+ golang.org/x/sys v0.0.0-20221010170243-090e33056c14 // indirect
+ golang.org/x/text v0.3.6 // indirect
+ google.golang.org/protobuf v1.28.0 // indirect
+ gopkg.in/yaml.v2 v2.4.0 // indirect
+ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..3deb7ef
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,206 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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diff --git a/service.go b/service.go
new file mode 100644
index 0000000..ba009b8
--- /dev/null
+++ b/service.go
@@ -0,0 +1,80 @@
+package main
+
+import (
+ "log"
+ "net/http"
+
+ badger "github.com/dgraph-io/badger/v3"
+ "github.com/gin-gonic/gin"
+)
+
+var db *badger.DB
+
+func CheckSaleUrl(c *gin.Context) {
+
+ corpusID := c.Param("corpus_id")
+ docID := c.Param("doc_id")
+ textID := c.Param("text_id")
+
+ err := db.View(func(txn *badger.Txn) error {
+
+ item, err := txn.Get([]byte(corpusID + "/" + docID + "/" + textID))
+
+ if err != nil {
+ c.String(http.StatusNotFound, "No entry found")
+ }
+
+ err = item.Value(func(v []byte) error {
+ c.String(http.StatusOK, string(v))
+ return nil
+ })
+
+ if err != nil {
+ c.String(http.StatusNotFound, err.Error())
+ }
+
+ return nil
+ })
+
+ if err != nil {
+ c.String(http.StatusNotFound, err.Error())
+ }
+
+ c.String(http.StatusExpectationFailed, err.Error())
+}
+
+func add(corpusID, docID, textID string, url string) error {
+ err := db.Update(func(txn *badger.Txn) error {
+ err := txn.Set([]byte(corpusID+"/"+docID+"/"+textID), []byte(url))
+ return err
+ })
+ return err
+}
+
+func initDB(dir string) {
+ if db != nil {
+ return
+ }
+ var err error
+ db, err = badger.Open(badger.DefaultOptions(dir))
+ if err != nil {
+ log.Fatal(err)
+ }
+}
+
+func closeDB() {
+ db.Close()
+}
+
+func setupRouter() *gin.Engine {
+ r := gin.Default()
+ r.GET("/:corpus_id/:doc_id/:text_id", CheckSaleUrl)
+ return r
+}
+
+func main() {
+ initDB("db")
+ r := setupRouter()
+ r.Run(":8080")
+ defer closeDB()
+}
diff --git a/service_test.go b/service_test.go
new file mode 100644
index 0000000..a18c52e
--- /dev/null
+++ b/service_test.go
@@ -0,0 +1,35 @@
+package main
+
+import (
+ "net/http"
+ "net/http/httptest"
+ "testing"
+
+ "github.com/stretchr/testify/assert"
+)
+
+func TestPingRoute(t *testing.T) {
+
+ dir := t.TempDir()
+
+ initDB(dir)
+ defer closeDB()
+ router := setupRouter()
+
+ w := httptest.NewRecorder()
+ req, _ := http.NewRequest(http.MethodGet, "/s10/s10/s10", nil)
+
+ router.ServeHTTP(w, req)
+
+ assert.Equal(t, http.StatusNotFound, w.Code)
+ assert.Equal(t, "No entry found", w.Body.String())
+
+ assert.Nil(t, add("s11", "s12", "s13", "http://example.org"))
+
+ w = httptest.NewRecorder()
+ req, _ = http.NewRequest(http.MethodGet, "/s11/s12/s13", nil)
+
+ router.ServeHTTP(w, req)
+ assert.Equal(t, http.StatusOK, w.Code)
+ assert.Equal(t, "http://example.org", w.Body.String())
+}