diff --git a/apps/newoptical/src/main/java/org/onosproject/newoptical/api/OpticalPathService.java b/apps/newoptical/src/main/java/org/onosproject/newoptical/api/OpticalPathService.java
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+++ b/apps/newoptical/src/main/java/org/onosproject/newoptical/api/OpticalPathService.java
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+/*
+ * Copyright 2016 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.newoptical.api;
+
+import com.google.common.annotations.Beta;
+import org.onlab.util.Bandwidth;
+import org.onosproject.event.ListenerService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Link;
+import org.onosproject.net.Path;
+
+import java.time.Duration;
+import java.util.List;
+
+/**
+ * Service to setup optical domain connectivity.
+ */
+@Beta
+public interface OpticalPathService extends ListenerService<OpticalPathEvent, OpticalPathListener> {
+
+    /**
+     * Calculates optical path between connect points and sets up connectivity.
+     *
+     * @param ingress   ingress port
+     * @param egress    egress port
+     * @param bandwidth required bandwidth. No bandwidth is assured if null.
+     * @param latency   required latency. No latency is assured if null.
+     * @return ID of created connectivity if successful. null otherwise.
+     */
+    OpticalConnectivityId setupConnectivity(ConnectPoint ingress, ConnectPoint egress,
+                                            Bandwidth bandwidth, Duration latency);
+
+    /**
+     * Sets up connectivity along given optical path.
+     *
+     * @param path      path along which connectivity will be set up
+     * @param bandwidth required bandwidth. No bandwidth is assured if null.
+     * @param latency   required latency. No latency is assured if null.
+     * @return true if successful. false otherwise.
+     */
+    OpticalConnectivityId setupPath(Path path, Bandwidth bandwidth, Duration latency);
+
+    /**
+     * Removes connectivity with given ID.
+     *
+     * @param id ID of connectivity
+     * @return true if succeed. false if failed.
+     */
+    boolean removeConnectivity(OpticalConnectivityId id);
+
+    /**
+     * Returns path assigned to given ID.
+     * @param id ID of connectivity
+     * @return list of link that compose a path. null if ID is invalid.
+     */
+    List<Link> getPath(OpticalConnectivityId id);
+}