[Falcon][ONOS-3537] Implement control message collecting logic w/ unit test

Change-Id: Ic21d476a5ad92d7ef739fa3c13dcc06e5cbf7c56
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfFlowMod.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfFlowMod.java
new file mode 100644
index 0000000..f0b6c4b
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfFlowMod.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2015 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.openflow.controller.driver;
+
+
+import org.projectfloodlight.openflow.protocol.OFFlowMod;
+import org.projectfloodlight.openflow.protocol.OFFlowModCommand;
+import org.projectfloodlight.openflow.protocol.OFType;
+import org.projectfloodlight.openflow.protocol.OFFlowModFlags;
+import org.projectfloodlight.openflow.protocol.action.OFAction;
+import org.projectfloodlight.openflow.protocol.instruction.OFInstruction;
+import org.projectfloodlight.openflow.protocol.match.Match;
+import org.projectfloodlight.openflow.types.OFBufferId;
+import org.projectfloodlight.openflow.types.OFPort;
+import org.projectfloodlight.openflow.types.TableId;
+import org.projectfloodlight.openflow.types.U64;
+import org.projectfloodlight.openflow.types.OFGroup;
+
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Mock of the Open Flow flow mod message.
+ */
+public class MockOfFlowMod extends OfMessageAdapter implements OFFlowMod {
+
+    public MockOfFlowMod() {
+        super(OFType.FLOW_MOD);
+    }
+
+    @Override
+    public U64 getCookie() {
+        return null;
+    }
+
+    @Override
+    public U64 getCookieMask() throws UnsupportedOperationException {
+        return null;
+    }
+
+    @Override
+    public TableId getTableId() throws UnsupportedOperationException {
+        return null;
+    }
+
+    @Override
+    public OFFlowModCommand getCommand() {
+        return null;
+    }
+
+    @Override
+    public int getIdleTimeout() {
+        return 0;
+    }
+
+    @Override
+    public int getHardTimeout() {
+        return 0;
+    }
+
+    @Override
+    public int getPriority() {
+        return 0;
+    }
+
+    @Override
+    public OFBufferId getBufferId() {
+        return null;
+    }
+
+    @Override
+    public OFPort getOutPort() {
+        return null;
+    }
+
+    @Override
+    public OFGroup getOutGroup() throws UnsupportedOperationException {
+        return null;
+    }
+
+    @Override
+    public Set<OFFlowModFlags> getFlags() {
+        return null;
+    }
+
+    @Override
+    public Match getMatch() {
+        return null;
+    }
+
+    @Override
+    public List<OFInstruction> getInstructions() throws UnsupportedOperationException {
+        return null;
+    }
+
+    @Override
+    public List<OFAction> getActions() throws UnsupportedOperationException {
+        return null;
+    }
+
+    @Override
+    public OFFlowMod.Builder createBuilder() {
+        return null;
+    }
+}