opts := levigo.NewOptions()

levigo.DestroyDatabase("test.ldb", opts)

// opts.SetCache(levigo.NewLRUCache(3<<30))

opts.SetCreateIfMissing(true)

db, err := levigo.Open("test.ldb", opts)

if err != nil {

t.Fatal(err)

}

ro := levigo.NewReadOptions()

wo := levigo.NewWriteOptions()

sub1 := sublevel.Sublevel(db, "input")

index := sublevel.Sublevel(db, "index")

job := sublevel.Sublevel(db, "job")

task := Trigger(sub1, job, func(key, value []byte) []byte {

if strings.HasPrefix(string(key), "Doc_") {

return key

}

return nil

}, func(key, value []byte) bool {

doc := make(map[string]string)

err := json.Unmarshal(value, &doc)

if err != nil {

t.Fatal(err)

}

index.Put(wo, []byte(doc["id"]), []byte(doc["number"]))

// Make sure that the next task invocation comes in concurrently to this one

time.Sleep(300 * time.Millisecond)

return true

})

sub1.Put(wo, []byte("foobar"), []byte("do-not-process"))

// Two put operations which will both trigger the task for the same taskKey.

sub1.Put(wo, []byte("Doc_1"), []byte("{\"id\":\"01234\", \"number\": \"42\"}"))

sub1.Put(wo, []byte("Doc_1"), []byte("{\"id\":\"01234\", \"number\": \"43\"}"))

val, err := sub1.Get(ro, []byte("Doc_1"))

if err != nil || string(val) != "{\"id\":\"01234\", \"number\": \"43\"}" {

t.Fatal(err, string(val))

}

time.Sleep(800 * time.Millisecond)

val, err = index.Get(ro, []byte("01234"))

if err != nil || string(val) != "43" {

t.Fatal(err, string(val))

}

task.Close()

ro.Close()

wo.Close()

db.Close()