func parseConsistency(s string) (c gocql.Consistency, err error) {
defer func() {
if r := recover(); r != nil {
err = &ErrInvalidConfig{
Message: "unknown consistency",
Value: s,
}
}
}()
c = gocql.ParseConsistency(s)
return c, err
}
// ParseConsistency wraps gocql.ParseConsistency to return an error
// instead of a panicing.
func parseConsistency(consistencyStr string) (consistency gocql.Consistency, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
err, ok = r.(error)
if !ok {
err = fmt.Errorf("Failed to parse consistency \"%s\": %v", consistencyStr, r)
}
}
}()
consistency = gocql.ParseConsistency(consistencyStr)
return consistency, nil
}
func newCassandraBackend(conf *Conf) IBackend {
// Connect to the cluster
cluster := gocql.NewCluster(conf.Cassandra.Hosts...)
cluster.Keyspace = conf.Cassandra.Keyspace
cluster.Consistency = gocql.ParseConsistency(conf.Cassandra.Consistency)
cluster.ProtoVersion = conf.Cassandra.ProtoVersion
session, err := cluster.CreateSession()
if err != nil {
log.Fatal(err)
}
return CassandraBackend{
session: session,
config: conf.Cassandra,
}
}