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import (
"fmt"
"github.com/pkg/errors"
"io"
"log"
"sync"
)
type Job struct {
// Function to call on Collect. This is the function
// that will (1) update the state of this job, (2)
// do the actual importing, (3) write to the Job-internal
// log and eventually (4) finish either with success
// or in failure.
collectfunc func(self *Job, c *Collector) error
// Global lock for all following members.
mu sync.Mutex
// Unique identifier of this job.
id JobId
// The state the job is currently in.
state JobState
// When state is set to Failed, contains the reason
// for this failure.
failure error
// Recorded logs for this job.
logged concurrentbuffer
}
// Return the unique identifier of this job.
func (bj *Job) Id() JobId {
bj.mu.Lock()
defer bj.mu.Unlock()
return bj.id
}
// Return the current state of this job.
func (bj *Job) State() JobState {
bj.mu.Lock()
defer bj.mu.Unlock()
return bj.state
}
// When State is Failed, return the error that caused
// the failure. When State is not failed, this method
// always returns nil.
func (bj *Job) Error() error {
bj.mu.Lock()
defer bj.mu.Unlock()
return bj.failure
}
// This is a synchronous operation that might take a long
// time. Instead of invoking Collect directly, you should
// create a Collector and Submit this job to it.
func (bj *Job) Collect(c *Collector) error {
if bj.collectfunc == nil {
return errors.New("collectfunc not set on Job")
}
bj.collectfunc(bj, c)
return nil
}
// Write to the log associated with this Job. The log message
// will be output with the standard logger as well as recorded
// to the buffer accessible with Job.Logs().
func (bj *Job) Log(v ...interface{}) {
log.Output(2, fmt.Sprint(v...))
}
// Write a formatted string to the log associated with this
// Job. The log message will be output with the standard
// logger as well as recorded to the buffer accessible with
// Job.Logs().
func (bj *Job) Logf(format string, v ...interface{}) {
log.Output(2, fmt.Sprintf(format, v...))
}
// Return the log stream of this job.
func (bj *Job) Logs() io.Reader {
panic("not yet implemented")