[Falcon] ONOS-3372 Link related Service on gRPC
Change-Id: Ib497d17cb3c0126086a1ce03a6f99ae344320448
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceContext.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceContext.java
index b419a34..2e0b282 100644
--- a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceContext.java
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceContext.java
@@ -23,6 +23,7 @@
import org.onosproject.incubator.rpc.RemoteServiceContext;
import org.onosproject.net.device.DeviceProviderRegistry;
+import org.onosproject.net.link.LinkProviderRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -49,6 +50,7 @@
public GrpcRemoteServiceContext(ManagedChannel channel) {
this.channel = checkNotNull(channel);
services.put(DeviceProviderRegistry.class, new DeviceProviderRegistryClientProxy(channel));
+ services.put(LinkProviderRegistry.class, new LinkProviderRegistryClientProxy(channel));
}
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
index 4f43fa6..a13b29c 100644
--- a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
@@ -21,6 +21,7 @@
import static org.onosproject.net.DeviceId.deviceId;
import java.io.IOException;
+import java.util.Map;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
@@ -47,11 +48,15 @@
import org.onosproject.grpc.Device.UpdatePorts;
import org.onosproject.grpc.DeviceProviderRegistryRpcGrpc;
import org.onosproject.grpc.DeviceProviderRegistryRpcGrpc.DeviceProviderRegistryRpc;
+import org.onosproject.grpc.LinkProviderServiceRpcGrpc;
import org.onosproject.net.DeviceId;
import org.onosproject.net.MastershipRole;
import org.onosproject.net.device.DeviceProvider;
import org.onosproject.net.device.DeviceProviderRegistry;
import org.onosproject.net.device.DeviceProviderService;
+import org.onosproject.net.link.LinkProvider;
+import org.onosproject.net.link.LinkProviderRegistry;
+import org.onosproject.net.link.LinkProviderService;
import org.onosproject.net.provider.ProviderId;
import org.osgi.service.component.ComponentContext;
import org.slf4j.Logger;
@@ -59,6 +64,7 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import io.grpc.Server;
@@ -68,13 +74,15 @@
// gRPC Server on Metro-side
// Translates request received on RPC channel, and calls corresponding Service on
// Metro-ONOS cluster.
+
+// Currently supports DeviceProviderRegistry, LinkProviderService
/**
* Server side implementation of gRPC based RemoteService.
*/
@Component(immediate = true)
public class GrpcRemoteServiceServer {
- private static final String RPC_PROVIDER_NAME = "org.onosproject.rpc.provider.grpc";
+ static final String RPC_PROVIDER_NAME = "org.onosproject.rpc.provider.grpc";
// TODO pick a number
public static final int DEFAULT_LISTEN_PORT = 11984;
@@ -84,6 +92,9 @@
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected DeviceProviderRegistry deviceProviderRegistry;
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected LinkProviderRegistry linkProviderRegistry;
+
@Property(name = "listenPort", intValue = DEFAULT_LISTEN_PORT,
label = "Port to listen on")
@@ -92,6 +103,11 @@
private Server server;
private final Set<DeviceProviderServerProxy> registeredProviders = Sets.newConcurrentHashSet();
+ // scheme -> ...
+ // updates must be guarded by synchronizing `this`
+ private final Map<String, LinkProviderService> linkProviderServices = Maps.newConcurrentMap();
+ private final Map<String, LinkProvider> linkProviders = Maps.newConcurrentMap();
+
@Activate
protected void activate(ComponentContext context) throws IOException {
modified(context);
@@ -100,6 +116,7 @@
try {
server = NettyServerBuilder.forPort(listenPort)
.addService(DeviceProviderRegistryRpcGrpc.bindService(new DeviceProviderRegistryServerProxy()))
+ .addService(LinkProviderServiceRpcGrpc.bindService(new LinkProviderServiceServerProxy(this)))
.build().start();
} catch (IOException e) {
log.error("Failed to start gRPC server", e);
@@ -117,6 +134,9 @@
server.shutdown();
// Should we wait for shutdown?
+
+ unregisterLinkProviders();
+
log.info("Stopped");
}
@@ -125,6 +145,40 @@
// TODO support dynamic reconfiguration and restarting server?
}
+ /**
+ * Registers {@link StubLinkProvider} for given ProviderId scheme.
+ *
+ * DO NOT DIRECTLY CALL THIS METHOD.
+ * Only expected to be called from {@link #getLinkProviderServiceFor(String)}.
+ *
+ * @param scheme ProviderId scheme.
+ * @return {@link LinkProviderService} registered.
+ */
+ private synchronized LinkProviderService registerStubLinkProvider(String scheme) {
+ StubLinkProvider provider = new StubLinkProvider(scheme);
+ linkProviders.put(scheme, provider);
+ return linkProviderRegistry.register(provider);
+ }
+
+ /**
+ * Unregisters all registered LinkProviders.
+ */
+ private synchronized void unregisterLinkProviders() {
+ linkProviders.values().forEach(linkProviderRegistry::unregister);
+ linkProviders.clear();
+ linkProviderServices.clear();
+ }
+
+ /**
+ * Gets or creates {@link LinkProviderService} registered for given ProviderId scheme.
+ *
+ * @param scheme ProviderId scheme.
+ * @return {@link LinkProviderService}
+ */
+ protected LinkProviderService getLinkProviderServiceFor(String scheme) {
+ return linkProviderServices.computeIfAbsent(scheme, this::registerStubLinkProvider);
+ }
+
// RPC Server-side code
// RPC session Factory
/**
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderRegistryClientProxy.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderRegistryClientProxy.java
new file mode 100644
index 0000000..fce94e7
--- /dev/null
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderRegistryClientProxy.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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 org.onosproject.incubator.rpc.grpc;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import org.onosproject.net.link.LinkProvider;
+import org.onosproject.net.link.LinkProviderRegistry;
+import org.onosproject.net.link.LinkProviderService;
+import org.onosproject.net.provider.AbstractProviderRegistry;
+
+import com.google.api.client.repackaged.com.google.common.annotations.Beta;
+
+import io.grpc.Channel;
+
+/**
+ * Proxy object to handle LinkProviderRegistry calls.
+ */
+@Beta
+public class LinkProviderRegistryClientProxy
+ extends AbstractProviderRegistry<LinkProvider, LinkProviderService>
+ implements LinkProviderRegistry {
+
+ private final Channel channel;
+
+ public LinkProviderRegistryClientProxy(Channel channel) {
+ this.channel = checkNotNull(channel);
+ }
+
+ @Override
+ protected LinkProviderService createProviderService(LinkProvider provider) {
+ return new LinkProviderServiceClientProxy(provider, channel);
+ }
+
+}
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceClientProxy.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceClientProxy.java
new file mode 100644
index 0000000..d0c8840
--- /dev/null
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceClientProxy.java
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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 org.onosproject.incubator.rpc.grpc;
+
+import static org.onosproject.incubator.rpc.grpc.GrpcDeviceUtils.asMap;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import org.onosproject.grpc.Link.LinkDetectedMsg;
+import org.onosproject.grpc.Link.LinkType;
+import org.onosproject.grpc.Link.LinkVanishedMsg;
+import org.onosproject.grpc.Link.Void;
+import org.onosproject.grpc.LinkProviderServiceRpcGrpc;
+import org.onosproject.grpc.LinkProviderServiceRpcGrpc.LinkProviderServiceRpcFutureStub;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link.Type;
+import org.onosproject.net.link.LinkDescription;
+import org.onosproject.net.link.LinkProvider;
+import org.onosproject.net.link.LinkProviderService;
+import org.onosproject.net.provider.AbstractProviderService;
+import org.onosproject.net.provider.ProviderId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.api.client.repackaged.com.google.common.annotations.Beta;
+import com.google.common.util.concurrent.ListenableFuture;
+
+import io.grpc.Channel;
+
+/**
+ * Proxy object to handle LinkProviderService calls.
+ *
+ * RPC wise, this will initiate a RPC call on each method invocation.
+ */
+@Beta
+class LinkProviderServiceClientProxy
+ extends AbstractProviderService<LinkProvider>
+ implements LinkProviderService {
+
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ private final Channel channel;
+
+ /**
+ * Constructs {@link LinkProviderServiceClientProxy}.
+ *
+ * @param provider {@link LinkProvider}. Only ProviderId scheme is used.
+ * @param channel channel to use to call RPC
+ */
+ protected LinkProviderServiceClientProxy(LinkProvider provider, Channel channel) {
+ super(provider);
+ this.channel = channel;
+ }
+
+ @Override
+ public void linkDetected(LinkDescription linkDescription) {
+ checkValidity();
+
+ LinkProviderServiceRpcFutureStub newStub = LinkProviderServiceRpcGrpc.newFutureStub(channel);
+ ListenableFuture<Void> future = newStub.linkDetected(detectMsg(provider().id(), linkDescription));
+
+ try {
+ // There's no need to wait, but just checking server
+ future.get(500, TimeUnit.MILLISECONDS);
+ } catch (InterruptedException e) {
+ log.error("linkDetected({}) failed", linkDescription, e);
+ invalidate();
+ Thread.currentThread().interrupt();
+ } catch (ExecutionException e) {
+ log.error("linkDetected({}) failed", linkDescription, e);
+ invalidate();
+ } catch (TimeoutException e) {
+ log.error("linkDetected({}) failed", linkDescription, e);
+ invalidate();
+ }
+ }
+
+ @Override
+ public void linkVanished(LinkDescription linkDescription) {
+ checkValidity();
+
+ LinkProviderServiceRpcFutureStub newStub = LinkProviderServiceRpcGrpc.newFutureStub(channel);
+ ListenableFuture<Void> future = newStub.linkVanished(vanishMsg(provider().id(), linkDescription));
+
+ try {
+ // There's no need to wait, but just checking server
+ future.get(500, TimeUnit.MILLISECONDS);
+ } catch (InterruptedException e) {
+ log.error("linkVanished({}) failed", linkDescription, e);
+ invalidate();
+ Thread.currentThread().interrupt();
+ } catch (ExecutionException e) {
+ log.error("linkVanished({}) failed", linkDescription, e);
+ invalidate();
+ } catch (TimeoutException e) {
+ log.error("linkVanished({}) failed", linkDescription, e);
+ invalidate();
+ }
+ }
+
+ @Override
+ public void linksVanished(ConnectPoint connectPoint) {
+ checkValidity();
+
+ LinkProviderServiceRpcFutureStub newStub = LinkProviderServiceRpcGrpc.newFutureStub(channel);
+ ListenableFuture<Void> future = newStub.linkVanished(vanishMsg(provider().id(), connectPoint));
+
+ try {
+ // There's no need to wait, but just checking server
+ future.get(500, TimeUnit.MILLISECONDS);
+ } catch (InterruptedException e) {
+ log.error("linksVanished({}) failed", connectPoint, e);
+ invalidate();
+ Thread.currentThread().interrupt();
+ } catch (ExecutionException e) {
+ log.error("linksVanished({}) failed", connectPoint, e);
+ invalidate();
+ } catch (TimeoutException e) {
+ log.error("linksVanished({}) failed", connectPoint, e);
+ invalidate();
+ }
+ }
+
+ @Override
+ public void linksVanished(DeviceId deviceId) {
+ checkValidity();
+
+ LinkProviderServiceRpcFutureStub newStub = LinkProviderServiceRpcGrpc.newFutureStub(channel);
+ ListenableFuture<Void> future = newStub.linkVanished(vanishMsg(provider().id(), deviceId));
+
+ try {
+ // There's no need to wait, but just checking server
+ future.get(500, TimeUnit.MILLISECONDS);
+ } catch (InterruptedException e) {
+ log.error("linksVanished({}) failed", deviceId, e);
+ invalidate();
+ Thread.currentThread().interrupt();
+ } catch (ExecutionException e) {
+ log.error("linksVanished({}) failed", deviceId, e);
+ invalidate();
+ } catch (TimeoutException e) {
+ log.error("linksVanished({}) failed", deviceId, e);
+ invalidate();
+ }
+ }
+
+ /**
+ * Builds {@link LinkDetectedMsg}.
+ *
+ * @param id ProviderId
+ * @param linkDescription {@link LinkDescription}
+ * @return {@link LinkDetectedMsg}
+ */
+ private LinkDetectedMsg detectMsg(ProviderId id,
+ LinkDescription linkDescription) {
+ LinkDetectedMsg.Builder builder = LinkDetectedMsg.newBuilder();
+ builder.setProviderId(id.scheme())
+ .setLinkDescription(builder.getLinkDescriptionBuilder()
+ .setSrc(translate(linkDescription.src()))
+ .setDst(translate(linkDescription.dst()))
+ .setType(translate(linkDescription.type()))
+ .putAllAnnotations(asMap(linkDescription.annotations()))
+ .build()
+ );
+ return builder.build();
+ }
+
+ /**
+ * Builds {@link LinkVanishedMsg}.
+ *
+ * @param id ProviderId
+ * @param linkDescription {@link LinkDescription}
+ * @return {@link LinkVanishedMsg}
+ */
+ private LinkVanishedMsg vanishMsg(ProviderId id,
+ LinkDescription linkDescription) {
+
+ LinkVanishedMsg.Builder builder = LinkVanishedMsg.newBuilder();
+ builder.setProviderId(id.scheme())
+ .setLinkDescription(builder.getLinkDescriptionBuilder()
+ .setSrc(translate(linkDescription.src()))
+ .setDst(translate(linkDescription.dst()))
+ .setType(translate(linkDescription.type()))
+ .putAllAnnotations(asMap(linkDescription.annotations()))
+ .build()
+ );
+ return builder.build();
+ }
+
+ /**
+ * Builds {@link LinkVanishedMsg}.
+ *
+ * @param id ProviderId
+ * @param connectPoint {@link ConnectPoint}
+ * @return {@link LinkVanishedMsg}
+ */
+ private LinkVanishedMsg vanishMsg(ProviderId id,
+ ConnectPoint connectPoint) {
+
+ LinkVanishedMsg.Builder builder = LinkVanishedMsg.newBuilder();
+ builder.setProviderId(id.scheme())
+ .setConnectPoint(translate(connectPoint));
+ return builder.build();
+ }
+
+ /**
+ * Builds {@link LinkVanishedMsg}.
+ *
+ * @param id ProviderId
+ * @param deviceId {@link DeviceId}
+ * @return {@link LinkVanishedMsg}
+ */
+ private LinkVanishedMsg vanishMsg(ProviderId id, DeviceId deviceId) {
+
+ LinkVanishedMsg.Builder builder = LinkVanishedMsg.newBuilder();
+ builder.setProviderId(id.scheme())
+ .setDeviceId(deviceId.toString());
+ return builder.build();
+ }
+
+ /**
+ * Translates ONOS object to gRPC message.
+ *
+ * @param type {@link Link.Type}
+ * @return gRPC LinkType
+ */
+ private LinkType translate(Type type) {
+ switch (type) {
+ case DIRECT:
+ return LinkType.DIRECT;
+ case EDGE:
+ return LinkType.EDGE;
+ case INDIRECT:
+ return LinkType.INDIRECT;
+ case OPTICAL:
+ return LinkType.OPTICAL;
+ case TUNNEL:
+ return LinkType.TUNNEL;
+ case VIRTUAL:
+ return LinkType.VIRTUAL;
+
+ default:
+ return LinkType.DIRECT;
+
+ }
+ }
+
+ /**
+ * Translates ONOS object to gRPC message.
+ *
+ * @param cp {@link ConnectPoint}
+ * @return gRPC ConnectPoint
+ */
+ private org.onosproject.grpc.Link.ConnectPoint translate(ConnectPoint cp) {
+ return org.onosproject.grpc.Link.ConnectPoint.newBuilder()
+ .setDeviceId(cp.deviceId().toString())
+ .setPortNumber(cp.port().toString())
+ .build();
+ }
+
+}
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceServerProxy.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceServerProxy.java
new file mode 100644
index 0000000..5f9c99c
--- /dev/null
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/LinkProviderServiceServerProxy.java
@@ -0,0 +1,184 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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 org.onosproject.incubator.rpc.grpc;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.net.DeviceId.deviceId;
+
+import org.onosproject.grpc.Link.LinkDetectedMsg;
+import org.onosproject.grpc.Link.LinkType;
+import org.onosproject.grpc.Link.LinkVanishedMsg;
+import org.onosproject.grpc.Link.Void;
+import org.onosproject.grpc.Link.ConnectPoint.ElementIdCase;
+import org.onosproject.grpc.LinkProviderServiceRpcGrpc.LinkProviderServiceRpc;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.link.DefaultLinkDescription;
+import org.onosproject.net.link.LinkDescription;
+import org.onosproject.net.link.LinkProviderService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.api.client.repackaged.com.google.common.annotations.Beta;
+
+import io.grpc.stub.StreamObserver;
+
+/**
+ * Server-side implementation of gRPC version of LinkProviderService.
+ */
+@Beta
+final class LinkProviderServiceServerProxy
+ implements LinkProviderServiceRpc {
+
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ private final GrpcRemoteServiceServer server;
+
+ LinkProviderServiceServerProxy(GrpcRemoteServiceServer server) {
+ this.server = checkNotNull(server);
+ }
+
+ /**
+ * Gets or creates {@link LinkProviderService} registered for given ProviderId scheme.
+ *
+ * @param scheme ProviderId scheme.
+ * @return {@link LinkProviderService}
+ */
+ private LinkProviderService getLinkProviderServiceFor(String scheme) {
+ return server.getLinkProviderServiceFor(scheme);
+ }
+
+ @Override
+ public void linkDetected(LinkDetectedMsg request,
+ StreamObserver<Void> responseObserver) {
+
+ try {
+ onLinkDetected(request, responseObserver);
+ // If onNext call was not mandatory, it can be removed.
+ responseObserver.onNext(Void.getDefaultInstance());
+ responseObserver.onCompleted();
+ } catch (Exception e) {
+ log.error("Exception caught", e);
+ responseObserver.onError(e);
+ }
+ }
+
+ private void onLinkDetected(LinkDetectedMsg request,
+ StreamObserver<Void> responseObserver) {
+ String scheme = request.getProviderId();
+
+ LinkProviderService linkProviderService = getLinkProviderServiceFor(scheme);
+
+ LinkDescription linkDescription = translate(request.getLinkDescription());
+ linkProviderService.linkDetected(linkDescription);
+ }
+
+ @Override
+ public void linkVanished(LinkVanishedMsg request,
+ StreamObserver<Void> responseObserver) {
+ try {
+ onLinksVanished(request, responseObserver);
+ // If onNext call was not mandatory, it can be removed.
+ responseObserver.onNext(Void.getDefaultInstance());
+ responseObserver.onCompleted();
+ } catch (Exception e) {
+ log.error("Exception caught", e);
+ responseObserver.onError(e);
+ }
+ }
+
+ private void onLinksVanished(LinkVanishedMsg request,
+ StreamObserver<Void> responseObserver) {
+ String scheme = request.getProviderId();
+ switch (request.getSubjectCase()) {
+ case CONNECT_POINT:
+ ConnectPoint cp = translate(request.getConnectPoint());
+ getLinkProviderServiceFor(scheme).linksVanished(cp);
+ break;
+ case DEVICE_ID:
+ DeviceId did = deviceId(request.getDeviceId());
+ getLinkProviderServiceFor(scheme).linksVanished(did);
+ break;
+ case LINK_DESCRIPTION:
+ LinkDescription desc = translate(request.getLinkDescription());
+ getLinkProviderServiceFor(scheme).linkVanished(desc);
+ break;
+ case SUBJECT_NOT_SET:
+ default:
+ // do nothing
+ break;
+ }
+ }
+
+ /**
+ * Translates gRPC message to corresponding ONOS object.
+ *
+ * @param connectPoint gRPC message.
+ * @return {@link ConnectPoint}
+ */
+ private ConnectPoint translate(org.onosproject.grpc.Link.ConnectPoint connectPoint) {
+ checkArgument(connectPoint.getElementIdCase() == ElementIdCase.DEVICE_ID,
+ "Only DeviceId supported.");
+ return new ConnectPoint(deviceId(connectPoint.getDeviceId()),
+ PortNumber.fromString(connectPoint.getPortNumber()));
+ }
+
+ /**
+ * Translates gRPC message to corresponding ONOS object.
+ *
+ * @param linkDescription gRPC message
+ * @return {@link LinkDescription}
+ */
+ private LinkDescription translate(org.onosproject.grpc.Link.LinkDescription linkDescription) {
+ ConnectPoint src = translate(linkDescription.getSrc());
+ ConnectPoint dst = translate(linkDescription.getDst());
+ Link.Type type = translate(linkDescription.getType());
+ SparseAnnotations annotations = GrpcDeviceUtils.asAnnotations(linkDescription.getAnnotations());
+ return new DefaultLinkDescription(src, dst, type, annotations);
+ }
+
+ /**
+ * Translates gRPC message to corresponding ONOS object.
+ *
+ * @param type gRPC message enum
+ * @return {@link Type}
+ */
+ private Link.Type translate(LinkType type) {
+ switch (type) {
+ case DIRECT:
+ return Link.Type.DIRECT;
+ case EDGE:
+ return Link.Type.EDGE;
+ case INDIRECT:
+ return Link.Type.INDIRECT;
+ case OPTICAL:
+ return Link.Type.INDIRECT;
+ case TUNNEL:
+ return Link.Type.TUNNEL;
+ case VIRTUAL:
+ return Link.Type.VIRTUAL;
+
+ case UNRECOGNIZED:
+ default:
+ return Link.Type.DIRECT;
+ }
+ }
+
+}
diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/StubLinkProvider.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/StubLinkProvider.java
new file mode 100644
index 0000000..427dc4d
--- /dev/null
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/StubLinkProvider.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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 org.onosproject.incubator.rpc.grpc;
+
+import org.onosproject.net.link.LinkProvider;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+
+import com.google.api.client.repackaged.com.google.common.annotations.Beta;
+import com.google.common.base.MoreObjects;
+
+/**
+ * Stub LinkProvider to be registered on Server-side.
+ */
+@Beta
+final class StubLinkProvider extends AbstractProvider implements LinkProvider {
+ protected StubLinkProvider(String scheme) {
+ super(new ProviderId(scheme, GrpcRemoteServiceServer.RPC_PROVIDER_NAME));
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(this)
+ .add("id", id())
+ .toString();
+ }
+}