This commit consists of the following:
1) The kafka messaging proxy in Twisted python for adapters
2) Initial implementation and containerization of ponsim OLT adapter
and ponsim ONU adapter
3) Initial submission of request and response facade in both Twisted
python and Go Language
4) Initial implementation of device management and logical device management
in the Core
5) Update to the log module to allow dynamic setting of log level per
package using the gRPC API
6) Bug fixes and minor changes
Change-Id: Ia8f033da84cfd08275335bae9542802415e7bb0f
diff --git a/rw_core/core/core.go b/rw_core/core/core.go
new file mode 100644
index 0000000..f9e42ef
--- /dev/null
+++ b/rw_core/core/core.go
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package core
+
+import (
+ "context"
+ grpcserver "github.com/opencord/voltha-go/common/grpc"
+ "github.com/opencord/voltha-go/common/log"
+ "github.com/opencord/voltha-go/db/model"
+ "github.com/opencord/voltha-go/kafka"
+ "github.com/opencord/voltha-go/protos/voltha"
+ "github.com/opencord/voltha-go/rw_core/config"
+ "google.golang.org/grpc"
+ "reflect"
+)
+
+type Core struct {
+ instanceId string
+ deviceMgr *DeviceManager
+ logicalDeviceMgr *LogicalDeviceManager
+ grpcServer *grpcserver.GrpcServer
+ grpcNBIAPIHanfler *APIHandler
+ config *config.RWCoreFlags
+ kmp *kafka.KafkaMessagingProxy
+ clusterDataRoot *model.Root
+ localDataRoot *model.Root
+ clusterDataProxy *model.Proxy
+ localDataProxy *model.Proxy
+ exitChannel chan int
+}
+
+func init() {
+ log.AddPackage(log.JSON, log.WarnLevel, nil)
+}
+
+func NewCore(id string, cf *config.RWCoreFlags) *Core {
+ var core Core
+ core.instanceId = id
+ core.exitChannel = make(chan int, 1)
+ core.config = cf
+ // TODO: Setup the KV store
+ core.clusterDataRoot = model.NewRoot(&voltha.Voltha{}, nil, reflect.TypeOf(model.NonPersistedRevision{}))
+ core.localDataRoot = model.NewRoot(&voltha.CoreInstance{}, nil, reflect.TypeOf(model.NonPersistedRevision{}))
+ core.clusterDataProxy = core.clusterDataRoot.Node.GetProxy("/", false)
+ core.localDataProxy = core.localDataRoot.Node.GetProxy("/", false)
+ return &core
+}
+
+func (core *Core) Start(ctx context.Context) {
+ log.Info("starting-core")
+ core.startKafkaMessagingProxy(ctx)
+ log.Info("values", log.Fields{"kmp": core.kmp})
+ core.deviceMgr = NewDeviceManager(core.kmp, core.localDataProxy)
+ core.logicalDeviceMgr = NewLogicalDeviceManager(core.deviceMgr, core.kmp, core.localDataProxy)
+ core.registerAdapterRequestHandler(ctx, core.deviceMgr, core.logicalDeviceMgr, core.localDataProxy, core.clusterDataProxy)
+ go core.startDeviceManager(ctx)
+ go core.startLogicalDeviceManager(ctx)
+ go core.startGRPCService(ctx)
+
+ log.Info("core-started")
+}
+
+func (core *Core) Stop(ctx context.Context) {
+ log.Info("stopping-core")
+ core.exitChannel <- 1
+ log.Info("core-stopped")
+}
+
+//startGRPCService creates the grpc service handler, registers it to the grpc server
+// and starts the server
+func (core *Core) startGRPCService(ctx context.Context) {
+ // create an insecure gserver server
+ core.grpcServer = grpcserver.NewGrpcServer(core.config.GrpcHost, core.config.GrpcPort, nil, false)
+ log.Info("grpc-server-created")
+
+ core.grpcNBIAPIHanfler = NewAPIHandler(core.deviceMgr, core.logicalDeviceMgr, core.clusterDataProxy, core.localDataProxy)
+ // Create a function to register the core GRPC service with the GRPC server
+ f := func(gs *grpc.Server) {
+ voltha.RegisterVolthaServiceServer(
+ gs,
+ core.grpcNBIAPIHanfler,
+ )
+ }
+
+ core.grpcServer.AddService(f)
+ log.Info("grpc-service-added")
+
+ // Start the server
+ core.grpcServer.Start(context.Background())
+ log.Info("grpc-server-started")
+}
+
+func (core *Core) startKafkaMessagingProxy(ctx context.Context) error {
+ log.Infow("starting-kafka-messaging-proxy", log.Fields{"host": core.config.KafkaAdapterHost,
+ "port": core.config.KafkaAdapterPort, "topic": core.config.CoreTopic})
+ var err error
+ if core.kmp, err = kafka.NewKafkaMessagingProxy(
+ kafka.KafkaHost(core.config.KafkaAdapterHost),
+ kafka.KafkaPort(core.config.KafkaAdapterPort),
+ kafka.DefaultTopic(&kafka.Topic{Name: core.config.CoreTopic})); err != nil {
+ log.Errorw("fail-to-create-kafka-proxy", log.Fields{"error": err})
+ return err
+ }
+
+ if err = core.kmp.Start(); err != nil {
+ log.Fatalw("error-starting-messaging-proxy", log.Fields{"error": err})
+ return err
+ }
+
+ log.Info("kafka-messaging-proxy-created")
+ return nil
+}
+
+func (core *Core) registerAdapterRequestHandler(ctx context.Context, dMgr *DeviceManager, ldMgr *LogicalDeviceManager,
+ cdProxy *model.Proxy, ldProxy *model.Proxy) error {
+ requestProxy := NewAdapterRequestHandlerProxy(dMgr, ldMgr, cdProxy, ldProxy)
+ core.kmp.SubscribeWithTarget(kafka.Topic{Name: core.config.CoreTopic}, requestProxy)
+
+ log.Info("request-handler")
+ return nil
+}
+
+func (core *Core) startDeviceManager(ctx context.Context) {
+ // TODO: Interaction between the logicaldevicemanager and devicemanager should mostly occur via
+ // callbacks. For now, until the model is ready, devicemanager will keep a reference to the
+ // logicaldevicemanager to initiate the creation of logical devices
+ log.Info("starting-DeviceManager")
+ core.deviceMgr.Start(ctx, core.logicalDeviceMgr)
+ log.Info("started-DeviceManager")
+}
+
+func (core *Core) startLogicalDeviceManager(ctx context.Context) {
+ log.Info("starting-Logical-DeviceManager")
+ core.logicalDeviceMgr.Start(ctx)
+ log.Info("started-Logical-DeviceManager")
+}