[plc4x] 02/02: - Started implementing discovery for KNX

[cd...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

cdutz pushed a commit to branch feature/plc4go
in repository https://gitbox.apache.org/repos/asf/plc4x.git

commit da01c447f60836dba0dafa18aaa4b2020a982d80
Author: Christofer Dutz <ch...@c-ware.de>
AuthorDate: Mon Nov 9 16:37:21 2020 +0100

    - Started implementing discovery for KNX
---
 plc4go/internal/plc4go/knxnetip/KnxNetIpDriver.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/plc4go/internal/plc4go/knxnetip/KnxNetIpDriver.go b/plc4go/internal/plc4go/knxnetip/KnxNetIpDriver.go
index 6ccdc84..7a30edc 100644
--- a/plc4go/internal/plc4go/knxnetip/KnxNetIpDriver.go
+++ b/plc4go/internal/plc4go/knxnetip/KnxNetIpDriver.go
@@ -56,6 +56,12 @@ func (m KnxNetIpDriver) CheckQuery(query string) error {
 }
 
 func (m KnxNetIpDriver) GetConnection(transportUrl url.URL, transports map[string]transports.Transport, options map[string][]string) <-chan plc4go.PlcConnectionConnectResult {
+    // If the host is set to "discover", use the KNX discovery mechanism
+    if transportUrl.Host == "-discover-" {
+        // Multicast address every KNX gateway is required to respond to.
+        transportUrl.Host =  "224.0.23.12"
+    }
+
     // Get an the transport specified in the url
     transport, ok := transports[transportUrl.Scheme]
     if !ok {