Begun data module

core/data/registry/sinks.go

@@ -0,0 +1,33 @@
+package registry
+
+import (
+	"fmt"
+	"sync"
+
+	"gitlab.michelsen.id/phillmichelsen/tessera/core/data"
+)
+
+type SinkFactory func(string) (data.Sink, error)
+
+type Sinks struct {
+	mu sync.RWMutex
+	m  map[string]SinkFactory
+}
+
+func NewSinks() *Sinks { return &Sinks{m: make(map[string]SinkFactory)} }
+
+func (r *Sinks) Register(name string, f SinkFactory) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	r.m[name] = f
+}
+
+func (r *Sinks) New(name string, params string) (data.Sink, error) {
+	r.mu.RLock()
+	f, ok := r.m[name]
+	r.mu.RUnlock()
+	if !ok {
+		return nil, fmt.Errorf("unknown sink: %s", name)
+	}
+	return f(params)
+}