func (cmd *MetaCommand) Exec(cl model.Cluster) error {
b, err := cl.Leader(cmd.Topic, int32(cmd.Partition))
if err != nil {
return err
}
res, err := proto.Metadata(cmd.Topic).Fetch(b)
if err != nil {
return err
}
fmt.Println(toJSON(res))
return nil
}
func (p *Payload) Produce(c model.Cluster) error {
leader, err := c.Leader(p.Topic, p.Partition)
if err != nil {
return err
}
if err := p.DoProduce(leader); err != nil {
if IsNotLeader(err) {
c.LeaderIsDown(p.Topic, p.Partition)
}
return err
}
return nil
}
func (o *OffsetByTime) Fetch(c model.Cluster) (int64, error) {
leader, err := c.Leader(o.Topic, o.Partition)
if err != nil {
return -1, err
}
offset, err := o.DoFetch(leader)
if err != nil {
if IsNotLeader(err) {
c.LeaderIsDown(o.Topic, o.Partition)
}
return -1, err
}
return offset, nil
}
func (m *Messages) Consume(c model.Cluster) (MessageSet, error) {
leader, err := c.Leader(m.Topic, m.Partition)
if err != nil {
return nil, err
}
ms, err := m.DoConsume(leader)
if err != nil {
if IsNotLeader(err) {
c.LeaderIsDown(m.Topic, m.Partition)
}
return nil, err
}
return ms, nil
}