Exemplo n.º 1
0
func (r *reader) SuperGet(key []byte) (*SuperRow, error) {
	if r.cf == "" {
		return nil, errors.New("No column family specified")
	}

	cp := r.buildColumnParent()
	sp := r.buildPredicate()
	var ret thrift.TMap
	var keys thrift.TList = thrift.NewTList(thrift.BINARY, 0) // size appears to be ignored in the thrift lib
	keys.Push(key)
	err := r.pool.run(func(c *connection) (*cassandra.InvalidRequestException, *cassandra.UnavailableException, *cassandra.TimedOutException, error) {
		var ire *cassandra.InvalidRequestException
		var ue *cassandra.UnavailableException
		var te *cassandra.TimedOutException
		var err error

		ret, ire, ue, te, err = c.client.MultigetSlice(keys, cp, sp, cassandra.ConsistencyLevel(r.consistencyLevel))
		return ire, ue, te, err
	})

	if err != nil {
		return nil, err
	}

	return rowFromTMapColumns(key, ret), nil
}
Exemplo n.º 2
0
func (w *writer) addWriter(cf string, key []byte) *cassandra.Mutation {
	tm := cassandra.NewMutation()
	var cfMuts thrift.TMap
	im, exists := w.writers.Get(key)
	if !exists {
		cfMuts = thrift.NewTMap(thrift.STRING, thrift.LIST, 1)
		w.writers.Set(key, cfMuts)
	} else {
		cfMuts = im.(thrift.TMap)
	}
	var mutList thrift.TList
	im, exists = cfMuts.Get(cf)
	if !exists {
		mutList = thrift.NewTList(thrift.STRUCT, 1)
		cfMuts.Set(cf, mutList)
	} else {
		mutList = im.(thrift.TList)
	}
	mutList.Push(tm)
	return tm
}