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package pipeline
import (
"time"
"github.com/spiral/errors"
)
// Pipelines is list of Pipeline.
type Pipelines []*Pipeline
func InitPipelines(pipes map[string]*Pipeline) (Pipelines, error) {
const op = errors.Op("pipeline_init")
out := make(Pipelines, 0)
for name, pipe := range pipes {
if pipe.Broker() == "" {
return nil, errors.E(op, errors.Errorf("found the pipeline without defined broker"))
}
p := pipe.With("name", name)
out = append(out, &p)
}
return out, nil
}
// Reverse returns pipelines in reversed order.
func (ps Pipelines) Reverse() Pipelines {
out := make(Pipelines, len(ps))
for i, p := range ps {
out[len(ps)-i-1] = p
}
return out
}
// Broker return pipelines associated with specific broker.
func (ps Pipelines) Broker(broker string) Pipelines {
out := make(Pipelines, 0)
for _, p := range ps {
if p.Broker() != broker {
continue
}
out = append(out, p)
}
return out
}
// Names returns only pipelines with specified names.
func (ps Pipelines) Names(only ...string) Pipelines {
out := make(Pipelines, 0)
for _, name := range only {
for _, p := range ps {
if p.Name() == name {
out = append(out, p)
}
}
}
return out
}
// Get returns pipeline by it'svc name.
func (ps Pipelines) Get(name string) *Pipeline {
// possibly optimize
for _, p := range ps {
if p.Name() == name {
return p
}
}
return nil
}
// Pipeline defines pipeline options.
type Pipeline map[string]interface{}
// With pipeline value. Immutable.
func (p Pipeline) With(name string, value interface{}) Pipeline {
out := make(map[string]interface{})
for k, v := range p {
out[k] = v
}
out[name] = value
return out
}
// Name returns pipeline name.
func (p Pipeline) Name() string {
return p.String("name", "")
}
// Broker associated with the pipeline.
func (p Pipeline) Broker() string {
return p.String("broker", "")
}
// Has checks if value presented in pipeline.
func (p Pipeline) Has(name string) bool {
if _, ok := p[name]; ok {
return true
}
return false
}
// Map must return nested map value or empty config.
func (p Pipeline) Map(name string) Pipeline {
out := make(map[string]interface{})
if value, ok := p[name]; ok {
if m, ok := value.(map[string]interface{}); ok {
for k, v := range m {
out[k] = v
}
}
}
return out
}
// Bool must return option value as string or return default value.
func (p Pipeline) Bool(name string, d bool) bool {
if value, ok := p[name]; ok {
if b, ok := value.(bool); ok {
return b
}
}
return d
}
// String must return option value as string or return default value.
func (p Pipeline) String(name string, d string) string {
if value, ok := p[name]; ok {
if str, ok := value.(string); ok {
return str
}
}
return d
}
// Integer must return option value as string or return default value.
func (p Pipeline) Integer(name string, d int) int {
if value, ok := p[name]; ok {
if str, ok := value.(int); ok {
return str
}
}
return d
}
// Duration must return option value as time.Duration (seconds) or return default value.
func (p Pipeline) Duration(name string, d time.Duration) time.Duration {
if value, ok := p[name]; ok {
if str, ok := value.(int); ok {
return time.Second * time.Duration(str)
}
}
return d
}
|
