[AETHER-1295][AETHER-1294] First stab to the TOST APIs framework
and to the DROP policies.

Patch includes also some CLI commands. REST APIs will be implemented
in a separate review. Other review will follow to implement the logic
of the REDIRECT policies

Change-Id: I34aa3da700c5a16682196e4dd8db9c4757d609c4
diff --git a/impl/src/main/java/org/onosproject/segmentrouting/policy/api/TrafficMatchData.java b/impl/src/main/java/org/onosproject/segmentrouting/policy/api/TrafficMatchData.java
new file mode 100644
index 0000000..3932b4c
--- /dev/null
+++ b/impl/src/main/java/org/onosproject/segmentrouting/policy/api/TrafficMatchData.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2021-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.segmentrouting.policy.api;
+
+import java.util.List;
+
+/**
+ * Traffic match data retrieved from the system.
+ */
+public final class TrafficMatchData {
+    // We want to provide access to the traffic match data as well as
+    // the traffic match operations in the system and their status
+    private final TrafficMatchState trafficMatchState;
+    private final TrafficMatch trafficMatch;
+    private final List<String> operations;
+
+
+    public TrafficMatchData(TrafficMatchState tState, TrafficMatch tMatch, List<String> ops) {
+        trafficMatch = tMatch;
+        trafficMatchState = tState;
+        operations = ops;
+    }
+
+    /**
+     * Returns the current state of the traffic match.
+     *
+     * @return the traffic match state
+     */
+    public TrafficMatchState trafficMatchState() {
+        return trafficMatchState;
+    }
+
+
+    /**
+     * Returns the traffic match associated.
+     *
+     * @return the traffic match
+     */
+    public TrafficMatch trafficMatch() {
+        return trafficMatch;
+    }
+
+    /**
+     * Returns the operations in the system in form of strings.
+     *
+     * @return the operations
+     */
+    public List<String> operations() {
+        return operations;
+    }
+}