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redis_executor_repository.go
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/
redis_executor_repository.go
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package database
import (
"fmt"
"time"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
"github.com/redis/go-redis/v9"
"github.com/armadaproject/armada/internal/common/armadacontext"
protoutil "github.com/armadaproject/armada/internal/common/proto"
"github.com/armadaproject/armada/internal/scheduler/schedulerobjects"
)
const (
executorsPrefix = "executors"
)
type RedisExecutorRepository struct {
db redis.UniversalClient
executorsKey string
}
func NewRedisExecutorRepository(db redis.UniversalClient, schedulerName string) *RedisExecutorRepository {
return &RedisExecutorRepository{
db: db,
executorsKey: fmt.Sprintf("%s_%s", executorsPrefix, schedulerName),
}
}
func (r *RedisExecutorRepository) GetExecutors(ctx *armadacontext.Context) ([]*schedulerobjects.Executor, error) {
result, err := r.db.HGetAll(ctx, r.executorsKey).Result()
if err != nil {
return nil, errors.Wrap(err, "Error retrieving executors from redis")
}
executors := make([]*schedulerobjects.Executor, len(result))
i := 0
for _, v := range result {
executor, err := protoutil.Unmarshall([]byte(v), &schedulerobjects.Executor{})
if err != nil {
return nil, err
}
executors[i] = executor
i++
}
return executors, nil
}
func (r *RedisExecutorRepository) GetLastUpdateTimes(_ *armadacontext.Context) (map[string]time.Time, error) {
// We could implement this in a very inefficient way, but I don't believe it's needed so panic for now
panic("GetLastUpdateTimes is not implemented")
}
func (r *RedisExecutorRepository) StoreExecutor(ctx *armadacontext.Context, executor *schedulerobjects.Executor) error {
data, err := proto.Marshal(executor)
if err != nil {
return errors.Wrap(err, "Error marshalling executor proto")
}
pipe := r.db.TxPipeline()
pipe.HSet(ctx, r.executorsKey, executor.Id, data)
_, err = pipe.Exec(ctx)
if err != nil {
return errors.Wrap(err, "Error storing executor in redis")
}
return nil
}