gosora/common/counters/agents.go

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package counters
import (
"database/sql"
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"sync/atomic"
c "github.com/Azareal/Gosora/common"
qgen "github.com/Azareal/Gosora/query_gen"
"github.com/pkg/errors"
)
var AgentViewCounter *DefaultAgentViewCounter
type DefaultAgentViewCounter struct {
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buckets []int64 //[AgentID]count
insert *sql.Stmt
}
func NewDefaultAgentViewCounter(acc *qgen.Accumulator) (*DefaultAgentViewCounter, error) {
co := &DefaultAgentViewCounter{
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buckets: make([]int64, len(agentMapEnum)),
insert: acc.Insert("viewchunks_agents").Columns("count,createdAt,browser").Fields("?,UTC_TIMESTAMP(),?").Prepare(),
}
c.Tasks.FifteenMin.Add(co.Tick)
//c.Tasks.Sec.Add(co.Tick)
c.Tasks.Shutdown.Add(co.Tick)
return co, acc.FirstError()
}
func (co *DefaultAgentViewCounter) Tick() error {
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for id, _ := range co.buckets {
count := atomic.SwapInt64(&co.buckets[id], 0)
e := co.insertChunk(count, id) // TODO: Bulk insert for speed?
if e != nil {
return errors.Wrap(errors.WithStack(e), "agent counter")
}
}
return nil
}
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func (co *DefaultAgentViewCounter) insertChunk(count int64, agent int) error {
if count == 0 {
return nil
}
agentName := reverseAgentMapEnum[agent]
c.DebugLogf("Inserting a vchunk with a count of %d for agent %s (%d)", count, agentName, agent)
_, e := co.insert.Exec(count, agentName)
return e
}
func (co *DefaultAgentViewCounter) Bump(agent int) {
// TODO: Test this check
c.DebugDetail("buckets ", agent, ": ", co.buckets[agent])
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if len(co.buckets) <= agent || agent < 0 {
return
}
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atomic.AddInt64(&co.buckets[agent], 1)
}