proxy: NewAppConns takes a NewTMSPClient func

proxy/client.go

@@ -0,0 +1,43 @@
+package proxy
+
+import (
+	"fmt"
+	"sync"
+
+	tmspcli "github.com/tendermint/tmsp/client"
+	"github.com/tendermint/tmsp/example/dummy"
+	nilapp "github.com/tendermint/tmsp/example/nil"
+)
+
+// Function type to get a connected tmsp client
+// Allows consumers to provide their own in-proc apps,
+// or to implement alternate address schemes and transports
+type NewTMSPClient func(addr, transport string) (tmspcli.Client, error)
+
+// Get a connected tmsp client.
+// Offers some default in-proc apps, else socket/grpc.
+func NewTMSPClientDefault(addr, transport string) (tmspcli.Client, error) {
+	var client tmspcli.Client
+
+	// use local app (for testing)
+	// TODO: local proxy app conn
+	switch addr {
+	case "nilapp":
+		app := nilapp.NewNilApplication()
+		mtx := new(sync.Mutex) // TODO
+		client = tmspcli.NewLocalClient(mtx, app)
+	case "dummy":
+		app := dummy.NewDummyApplication()
+		mtx := new(sync.Mutex) // TODO
+		client = tmspcli.NewLocalClient(mtx, app)
+	default:
+		// Run forever in a loop
+		mustConnect := false
+		remoteApp, err := tmspcli.NewClient(addr, transport, mustConnect)
+		if err != nil {
+			return nil, fmt.Errorf("Failed to connect to proxy for mempool: %v", err)
+		}
+		client = remoteApp
+	}
+	return client, nil
+}