Creating a p4runtime default driver to avoid code duplication between bmv2 and barefoot drivers
Change-Id: Id7f16a284c65278ec1a9ec682da01ddf020343c8
diff --git a/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimeHandshaker.java b/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimeHandshaker.java
new file mode 100644
index 0000000..82a9b85
--- /dev/null
+++ b/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimeHandshaker.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2017-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 org.onosproject.drivers.p4runtime;
+
+import io.grpc.ManagedChannelBuilder;
+import io.grpc.netty.NettyChannelBuilder;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.MastershipRole;
+import org.onosproject.net.device.DeviceHandshaker;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.driver.DriverData;
+import org.onosproject.p4runtime.api.P4RuntimeController;
+import org.slf4j.Logger;
+
+import java.util.concurrent.CompletableFuture;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Implementation of DeviceHandshaker for BMv2.
+ */
+public class P4RuntimeHandshaker extends AbstractHandlerBehaviour
+ implements DeviceHandshaker {
+
+ private final Logger log = getLogger(getClass());
+
+ // TODO: consider abstract class with empty connect method and implementation into a protected one for reusability.
+
+ @Override
+ public CompletableFuture<Boolean> connect() {
+ return CompletableFuture.supplyAsync(this::doConnect);
+ }
+
+ private boolean doConnect() {
+
+ P4RuntimeController controller = handler().get(P4RuntimeController.class);
+
+ DeviceId deviceId = handler().data().deviceId();
+ // DeviceKeyService deviceKeyService = handler().get(DeviceKeyService.class);
+ DriverData data = data();
+
+ String serverAddr = data.value("p4runtime_ip");
+ int serverPort = Integer.valueOf(data.value("p4runtime_port"));
+ int p4DeviceId = Integer.valueOf(data.value("p4runtime_deviceId"));
+
+ ManagedChannelBuilder channelBuilder = NettyChannelBuilder
+ .forAddress(serverAddr, serverPort)
+ .usePlaintext(true);
+
+ if (!controller.createClient(deviceId, p4DeviceId, channelBuilder)) {
+ log.warn("Unable to create P4runtime client for {}", deviceId);
+ return false;
+ }
+
+ // TODO: gNMI handling
+
+ return true;
+ }
+
+ @Override
+ public CompletableFuture<Boolean> disconnect() {
+ return CompletableFuture.supplyAsync(() -> {
+ P4RuntimeController controller = handler().get(P4RuntimeController.class);
+ DeviceId deviceId = handler().data().deviceId();
+ controller.removeClient(deviceId);
+ return true;
+ });
+ }
+
+ @Override
+ public CompletableFuture<Boolean> isReachable() {
+ return CompletableFuture.supplyAsync(() -> {
+ P4RuntimeController controller = handler().get(P4RuntimeController.class);
+ DeviceId deviceId = handler().data().deviceId();
+ return controller.isReacheable(deviceId);
+ });
+ }
+
+ @Override
+ public CompletableFuture<MastershipRole> roleChanged(MastershipRole newRole) {
+ CompletableFuture<MastershipRole> result = new CompletableFuture<>();
+ log.warn("roleChanged not implemented");
+ result.complete(MastershipRole.MASTER);
+ // TODO.
+ return result;
+ }
+}