1 files changed, 169 insertions, 0 deletions
diff --git a/plugins/jobs/pipeline.go b/plugins/jobs/pipeline.go
new file mode 100644
index 00000000..58b76e33
--- /dev/null
+++ b/plugins/jobs/pipeline.go
@@ -0,0 +1,169 @@
+package jobs
+
+import (
+	"fmt"
+	"time"
+)
+
+// Pipelines is list of Pipeline.
+type Pipelines []*Pipeline
+
+func initPipelines(pipes map[string]*Pipeline) (Pipelines, error) {
+	out := make(Pipelines, 0)
+
+	for name, pipe := range pipes {
+		if pipe.Broker() == "" {
+			return nil, fmt.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 Pipeline(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 Pipeline(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
+}