[ODTN] Add read/create/delete ConnectivityService RPC

- RPC: get service interface point
- RPC: get connectivity service list
- RPC: get connectivity service detail
- RPC: create connectivity service
- RPC: delete connectivity service

- Filter method of TAPI resolver for both Node / NEP
- Change condition for sip to odtn-port-type
- Use odtn-port-type in path-computation mock
- Create CEP at topology discovery

- Add sample path calculator
- Add connection-id based path selection

Change-Id: I2f08aacb3dd14b6b3c59a64a349e50abb495f70b
diff --git a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiCepRefHandler.java b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiCepRefHandler.java
new file mode 100644
index 0000000..38acd75
--- /dev/null
+++ b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiCepRefHandler.java
@@ -0,0 +1,67 @@
+/*
+ * 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.odtn.utils.tapi;
+
+import org.onosproject.yang.gen.v1.tapicommon.rev20180307.tapicommon.Uuid;
+import org.onosproject.yang.gen.v1.tapiconnectivity.rev20180307.tapiconnectivity.ceplist.ConnectionEndPoint;
+import org.onosproject.yang.gen.v1.tapiconnectivity.rev20180307.tapiconnectivity.connection.DefaultConnectionEndPoint;
+import org.onosproject.yang.gen.v1.tapiconnectivity.rev20180307.tapiconnectivity.connectionendpoint.ParentNodeEdgePoint;
+import org.onosproject.yang.model.ModelObjectId;
+
+/**
+ * Utility class to deal with TAPI CepRef with DCS.
+ */
+public final class TapiCepRefHandler extends TapiObjectHandler<DefaultConnectionEndPoint> {
+
+    private TapiCepRefHandler() {
+        obj = new DefaultConnectionEndPoint();
+    }
+
+    public static TapiCepRefHandler create() {
+        return new TapiCepRefHandler();
+    }
+
+    @Override
+    protected Uuid getIdDetail() {
+        return (Uuid) obj.connectionEndPointId();
+    }
+
+    @Override
+    protected void setIdDetail(Uuid uuid) {}
+
+    @Override
+    public ModelObjectId getParentModelObjectId() {
+        return null;
+    }
+
+    public TapiCepRefHandler setCep(TapiCepRef cepRef) {
+        obj.topologyId(cepRef.getTopologyId());
+        obj.nodeId(cepRef.getNodeId());
+        obj.ownedNodeEdgePointId(cepRef.getNepId());
+        obj.connectionEndPointId(cepRef.getCepId());
+        return this;
+    }
+
+    public TapiCepRefHandler setCep(ConnectionEndPoint cep) {
+        obj.connectionEndPointId(cep.uuid());
+        ParentNodeEdgePoint parentNep = cep.parentNodeEdgePoint().get(0);
+        obj.topologyId(parentNep.topologyId());
+        obj.nodeId(parentNep.nodeId());
+        obj.ownedNodeEdgePointId(parentNep.ownedNodeEdgePointId());
+        return this;
+    }
+}