Exemplo n.º 1
0
// Create a pipeline from a given script.
// tick:ignore
func CreatePipeline(script string, sourceEdge EdgeType, scope *tick.Scope, deadman DeadmanService) (*Pipeline, error) {
	p := &Pipeline{
		deadman: deadman,
	}
	var src Node
	switch sourceEdge {
	case StreamEdge:
		src = newSourceStreamNode()
		scope.Set("stream", src)
	case BatchEdge:
		src = newSourceBatchNode()
		scope.Set("batch", src)
	default:
		return nil, fmt.Errorf("source edge type must be either Stream or Batch not %s", sourceEdge)
	}
	p.addSource(src)

	err := tick.Evaluate(script, scope)
	if err != nil {
		return nil, err
	}
	if sourceEdge == StreamEdge && deadman.Global() {
		src.(*SourceStreamNode).Deadman(deadman.Threshold(), deadman.Interval())
	}
	return p, nil

}
Exemplo n.º 2
0
// Create a pipeline from a given script.
// tick:ignore
func CreatePipeline(script string, sourceEdge EdgeType, scope *tick.Scope) (*Pipeline, error) {
	var src Node
	switch sourceEdge {
	case StreamEdge:
		src = newStreamNode()
		scope.Set("stream", src)
	case BatchEdge:
		src = newSourceBatchNode()
		scope.Set("batch", src)
	default:
		return nil, fmt.Errorf("source edge type must be either Stream or Batch not %s", sourceEdge)
	}
	err := tick.Evaluate(script, scope)
	if err != nil {
		return nil, err
	}
	p := &Pipeline{Source: src}
	p.Walk(p.setID)
	return p, nil

}