[ONOS-6465] gRPC Protocol and controller
Change-Id: I0ae997f234ce95a78db2db1917f2cbbe3696ccfd
diff --git a/protocols/grpc/api/src/main/java/org/onosproject/grpc/api/GrpcServiceId.java b/protocols/grpc/api/src/main/java/org/onosproject/grpc/api/GrpcServiceId.java
new file mode 100644
index 0000000..203ade6
--- /dev/null
+++ b/protocols/grpc/api/src/main/java/org/onosproject/grpc/api/GrpcServiceId.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2017-present 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.grpc.api;
+
+import com.google.common.annotations.Beta;
+import org.onlab.util.Identifier;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * gRPCService identifier suitable as an external key.
+ * <p>
+ * This class is immutable.</p>
+ */
+@Beta
+public final class GrpcServiceId extends Identifier<String> {
+
+ private final GrpcChannelId channelId;
+
+ private final String serviceName;
+
+ /**
+ * Instantiates a new gRPC Service id.
+ *
+ * @param channelId the channel id
+ * @param serviceName the name of the service on that channel
+ */
+ private GrpcServiceId(GrpcChannelId channelId, String serviceName) {
+ super(channelId.toString() + ":" + serviceName);
+ checkNotNull(channelId, "channel id must not be null");
+ checkNotNull(serviceName, "service name must not be null");
+ checkArgument(!serviceName.isEmpty(), "service name must not be empty");
+ this.channelId = channelId;
+ this.serviceName = serviceName;
+ }
+
+ /**
+ * Returns the id of the channel that this service uses.
+ *
+ * @return the channel Id
+ */
+ public GrpcChannelId channelId() {
+ return channelId;
+ }
+
+ /**
+ * Returns the name of this service.
+ *
+ * @return the service name
+ */
+ public String serviceName() {
+ return serviceName;
+ }
+
+ /**
+ * Creates a gRPC Service identifier from the specified device id and
+ * service name provided.
+ *
+ * @param id channel id
+ * @param serviceName name of the service
+ * @return service name
+ */
+ public static GrpcServiceId of(GrpcChannelId id, String serviceName) {
+ return new GrpcServiceId(id, serviceName);
+ }
+}