ONOS-7251 - Initial implementation of fabric.p4 L2 broadcast feature.
Thrift client cherry-picked from the commit dd5792ac9ee38a702c3128a34224852b5c284687
Change-Id: I989f2b2074485a892195889a7c976b518510da88
diff --git a/drivers/bmv2/src/main/java/org/onosproject/drivers/bmv2/Bmv2DeviceHandshaker.java b/drivers/bmv2/src/main/java/org/onosproject/drivers/bmv2/Bmv2DeviceHandshaker.java
new file mode 100644
index 0000000..efb7b77
--- /dev/null
+++ b/drivers/bmv2/src/main/java/org/onosproject/drivers/bmv2/Bmv2DeviceHandshaker.java
@@ -0,0 +1,95 @@
+/*
+ * 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 org.onosproject.drivers.bmv2;
+
+import org.onosproject.drivers.bmv2.api.Bmv2PreController;
+import org.onosproject.drivers.p4runtime.P4RuntimeHandshaker;
+import org.onosproject.net.DeviceId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.CompletableFuture;
+
+public class Bmv2DeviceHandshaker extends P4RuntimeHandshaker {
+
+ public static final String THRIFT_SERVER_ADDRESS_KEY = "bmv2-thrift_ip";
+ public static final String THRIFT_SERVER_PORT_KEY = "bmv2-thrift_port";
+ protected final Logger log = LoggerFactory.getLogger(getClass());
+
+ @Override
+ public CompletableFuture<Boolean> connect() {
+ //connect to both GRPC and Thrift servers in parallel
+ CompletableFuture<Boolean> futureP4Runtime = super.connect();
+ CompletableFuture<Boolean> futureBmv2Pre = connectToBmv2Pre();
+ //combine futures and asses the overall result by using P4Runtime connection status
+ return futureP4Runtime.thenCombine(futureBmv2Pre,
+ (p4RuntimeConnected, bmv2PreConnected) -> p4RuntimeConnected);
+ }
+
+ @Override
+ public CompletableFuture<Boolean> disconnect() {
+ //disconnect from both GRPC and Thrift servers in parallel
+ CompletableFuture<Boolean> futureP4Runtime = super.disconnect();
+ CompletableFuture<Boolean> futureBmv2Pre = disconnectFromBmv2Pre();
+ //combine futures and asses the overall result by using P4Runtime disconnection status
+ return futureP4Runtime.thenCombine(futureBmv2Pre,
+ (p4RuntimeDisconnected, bmv2PreDisconnected) -> p4RuntimeDisconnected);
+ }
+
+ private CompletableFuture<Boolean> connectToBmv2Pre() {
+ return CompletableFuture.supplyAsync(this::createPreClient);
+ }
+
+ private CompletableFuture<Boolean> disconnectFromBmv2Pre() {
+ return CompletableFuture.supplyAsync(() -> {
+ removePreClient();
+ return true;
+ });
+ }
+
+ /**
+ * Creates a BMv2 PRE client for this device.
+ *
+ * @return true if successful; false otherwise
+ */
+ private boolean createPreClient() {
+ DeviceId deviceId = handler().data().deviceId();
+
+ String serverAddress = data().value(THRIFT_SERVER_ADDRESS_KEY);
+ String serverPortString = data().value(THRIFT_SERVER_PORT_KEY);
+
+ if (serverAddress == null || serverPortString == null) {
+ log.warn("Unable to create PRE client for {}, missing driver data key (required is {}, and {})",
+ deviceId, THRIFT_SERVER_ADDRESS_KEY, THRIFT_SERVER_PORT_KEY);
+ return false;
+ }
+ Bmv2PreController bmv2PreController = handler().get(Bmv2PreController.class);
+ try {
+ return bmv2PreController.createPreClient(deviceId,
+ serverAddress,
+ Integer.parseUnsignedInt(serverPortString));
+ } catch (RuntimeException e) {
+ log.warn("Unable to create BMv2 PRE client for {} due to {}", deviceId, e.toString());
+ return false;
+ }
+ }
+
+ private void removePreClient() {
+ DeviceId deviceId = handler().data().deviceId();
+ handler().get(Bmv2PreController.class).removePreClient(deviceId);
+ }
+}