func CreateNewMongoGraph(addr string, options graph.OptionsDict) bool {
conn, err := mgo.Dial(addr)
if err != nil {
glog.Fatal("Error connecting: ", err)
return false
}
conn.SetSafe(&mgo.Safe{})
dbName := DefaultDBName
if val, ok := options.GetStringKey("database_name"); ok {
dbName = val
}
db := conn.DB(dbName)
indexOpts := mgo.Index{
Key: []string{"Sub"},
Unique: false,
DropDups: false,
Background: true,
Sparse: true,
}
db.C("triples").EnsureIndex(indexOpts)
indexOpts.Key = []string{"Pred"}
db.C("triples").EnsureIndex(indexOpts)
indexOpts.Key = []string{"Obj"}
db.C("triples").EnsureIndex(indexOpts)
indexOpts.Key = []string{"Provenance"}
db.C("triples").EnsureIndex(indexOpts)
return true
}
func NewTripleStore(addr string, options graph.OptionsDict) *TripleStore {
var ts TripleStore
conn, err := mgo.Dial(addr)
if err != nil {
glog.Fatal("Error connecting: ", err)
}
conn.SetSafe(&mgo.Safe{})
dbName := DefaultDBName
if val, ok := options.GetStringKey("database_name"); ok {
dbName = val
}
ts.db = conn.DB(dbName)
ts.session = conn
ts.hasher = sha1.New()
ts.idCache = NewIDLru(1 << 16)
return &ts
}