// SetVars sets up the environment for InsertStatement to call it's Run function
func (i *InsertStatement) SetVars(s *ponyExpress.StoreFront) chan<- string {
// Set the #series at 1 to start
i.series = 1
// Num series is the product of the cardinality of the tags
for _, tmpl := range i.Templates[0:i.TagCount] {
i.series *= tmpl.numSeries()
}
// make stringers from the templates
i.stringers = i.Templates.Init(i.series)
// Set the time function, keeps track of 'time' of the points being created
i.time = i.Timestamp.Time(s.StartDate, i.series, s.Precision)
// Set a commune on the StoreFront
s.Lock()
comCh := s.SetCommune(i.Name)
s.Unlock()
// Set the tracer
i.Tracer = ponyExpress.NewTracer(i.tags())
return comCh
}
// Run statisfies the Statement Interface
func (i *QueryStatement) Run(s *ponyExpress.StoreFront) {
// Set the tracer
i.Tracer = ponyExpress.NewTracer(i.tags())
vals := make(map[string]interface{})
var point models.Point
runtime := time.Now()
for j := 0; j < i.Count; j++ {
// If the query is a simple query, send it.
if len(i.Args) == 0 {
b := []byte(i.TemplateString)
// Make the package
p := ponyExpress.NewPackage(ponyExpress.Query, b, i.StatementID, i.Tracer)
// Increment the tracer
i.Tracer.Add(1)
// Send the package
s.SendPackage(p)
} else {
// Otherwise cherry pick field values from the commune?
// TODO: Currently the program lock up here if s.GetPoint
// cannot return a value, which can happen.
// Seee insert.go
s.Lock()
point = s.GetPoint(i.Name, s.Precision)
s.Unlock()
setMapValues(vals, point)
// Set the template string with args from the commune
b := []byte(fmt.Sprintf(i.TemplateString, setArgs(vals, i.Args)...))
// Make the package
p := ponyExpress.NewPackage(ponyExpress.Query, b, i.StatementID, i.Tracer)
// Increment the tracer
i.Tracer.Add(1)
// Send the package
s.SendPackage(p)
}
}
// Wait for all operations to finish
i.Tracer.Wait()
// Stop time timer
i.runtime = time.Since(runtime)
}
// Run statisfies the Statement Interface
func (i *SetStatement) Run(s *ponyExpress.StoreFront) {
// Set the Tracer
i.Tracer = ponyExpress.NewTracer(make(map[string]string))
// Create a new Directive
d := ponyExpress.NewDirective(strings.ToLower(i.Var), strings.ToLower(i.Value), i.Tracer)
switch d.Property {
// Needs to be set on both StoreFront and ponyExpress
// Set the write percison for points generated
case "precision":
s.Precision = d.Value
// Increment the tracer
i.Tracer.Add(1)
s.SendDirective(d)
// Lives on StoreFront
// Set the date for the first point entered into the database
case "startdate":
s.Lock()
s.StartDate = d.Value
s.Unlock()
// Lives on StoreFront
// Set the BatchSize for writes
case "batchsize":
s.Lock()
s.BatchSize = parseInt(d.Value)
s.Unlock()
// Lives on StoreFront
// Reset the ResultsClient to have a new address
case "resultsaddress":
s.Lock()
s.SetResultsClient(influx.HTTPConfig{Addr: fmt.Sprintf("http://%v/", d.Value)})
s.Unlock()
// TODO: Make TestName actually change the reporting DB
// Lives on StoreFront
// Set the TestName that controls reporting DB
case "testname":
s.Lock()
s.TestName = d.Value
s.Unlock()
// All other variables live on ponyExpress
default:
// Increment the tracer
i.Tracer.Add(1)
s.SendDirective(d)
}
i.Tracer.Wait()
}