[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/AbstractOpenFlowSwitchTest.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitchTest.java
new file mode 100644
index 0000000..16989da
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/AbstractOpenFlowSwitchTest.java
@@ -0,0 +1,123 @@
+/*
+ * 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.junit.Before;
+import org.junit.Test;
+import org.projectfloodlight.openflow.protocol.OFMessage;
+import org.jboss.netty.channel.Channel;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Future;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+
+/**
+ * Tests for packet processing in the abstract openflow switch class.
+ */
+public class AbstractOpenFlowSwitchTest {
+
+    OpenFlowSwitchImpl ofSwitch;
+    TestExecutorService executorService;
+
+    /**
+     * Mock executor service that tracks submits.
+     */
+    static class TestExecutorService extends ExecutorServiceAdapter {
+        private List<OFMessage> submittedMessages = new ArrayList<>();
+
+        List<OFMessage> submittedMessages() {
+            return submittedMessages;
+        }
+
+        @Override
+        public Future<?> submit(Runnable task) {
+            AbstractOpenFlowSwitch.OFMessageHandler handler =
+                    (AbstractOpenFlowSwitch.OFMessageHandler) task;
+            submittedMessages.add(handler.msg);
+            return null;
+        }
+    }
+
+    /**
+     * Sets up switches to use as data.
+     */
+    @Before
+    public void setUp() {
+        ofSwitch = new OpenFlowSwitchImpl();
+
+        executorService = new TestExecutorService();
+        ofSwitch.executorMsgs = executorService;
+        Channel channel = new ChannelAdapter();
+        ofSwitch.setChannel(channel);
+    }
+
+    /**
+     * Tests a packet out operation.
+     */
+    @Test
+    public void testPacketOut() {
+        OFMessage ofPacketOut = new MockOfPacketOut();
+        ofSwitch.sendMsg(ofPacketOut);
+        assertThat(executorService.submittedMessages(), hasSize(1));
+        assertThat(executorService.submittedMessages().get(0), is(ofPacketOut));
+    }
+
+    /**
+     * Tests a flow mod operation.
+     */
+    @Test
+    public void testFlowMod() {
+        OFMessage ofFlowMod = new MockOfFlowMod();
+        ofSwitch.sendMsg(ofFlowMod);
+        assertThat(executorService.submittedMessages(), hasSize(1));
+        assertThat(executorService.submittedMessages().get(0), is(ofFlowMod));
+    }
+
+    /**
+     * Tests a stats request operation.
+     */
+    @Test
+    public void testStatsRequest() {
+        OFMessage ofStatsRequest = new MockOfStatsRequest();
+        ofSwitch.sendMsg(ofStatsRequest);
+        assertThat(executorService.submittedMessages(), hasSize(1));
+        assertThat(executorService.submittedMessages().get(0), is(ofStatsRequest));
+    }
+
+    protected class OpenFlowSwitchImpl extends AbstractOpenFlowSwitch {
+
+        @Override
+        public Boolean supportNxRole() {
+            return null;
+        }
+
+        @Override
+        public void startDriverHandshake() {
+        }
+
+        @Override
+        public boolean isDriverHandshakeComplete() {
+            return false;
+        }
+
+        @Override
+        public void processDriverHandshakeMessage(OFMessage m) {
+        }
+    }
+}
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java
new file mode 100644
index 0000000..d4d9191
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2014-2015 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 java.net.SocketAddress;
+
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelConfig;
+import org.jboss.netty.channel.ChannelFactory;
+import org.jboss.netty.channel.ChannelFuture;
+import org.jboss.netty.channel.ChannelPipeline;
+
+/**
+ * Adapter for testing against a netty channel.
+ */
+public class ChannelAdapter implements Channel {
+    @Override
+    public Integer getId() {
+        return null;
+    }
+
+    @Override
+    public ChannelFactory getFactory() {
+        return null;
+    }
+
+    @Override
+    public Channel getParent() {
+        return null;
+    }
+
+    @Override
+    public ChannelConfig getConfig() {
+        return null;
+    }
+
+    @Override
+    public ChannelPipeline getPipeline() {
+        return null;
+    }
+
+    @Override
+    public boolean isOpen() {
+        return false;
+    }
+
+    @Override
+    public boolean isBound() {
+        return false;
+    }
+
+    @Override
+    public boolean isConnected() {
+        return false;
+    }
+
+    @Override
+    public SocketAddress getLocalAddress() {
+        return null;
+    }
+
+    @Override
+    public SocketAddress getRemoteAddress() {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture write(Object o) {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture write(Object o, SocketAddress socketAddress) {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture bind(SocketAddress socketAddress) {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture connect(SocketAddress socketAddress) {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture disconnect() {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture unbind() {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture close() {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture getCloseFuture() {
+        return null;
+    }
+
+    @Override
+    public int getInterestOps() {
+        return 0;
+    }
+
+    @Override
+    public boolean isReadable() {
+        return false;
+    }
+
+    @Override
+    public boolean isWritable() {
+        return false;
+    }
+
+    @Override
+    public ChannelFuture setInterestOps(int i) {
+        return null;
+    }
+
+    @Override
+    public ChannelFuture setReadable(boolean b) {
+        return null;
+    }
+
+    @Override
+    public Object getAttachment() {
+        return null;
+    }
+
+    @Override
+    public void setAttachment(Object o) {
+
+    }
+
+    @Override
+    public int compareTo(Channel o) {
+        return 0;
+    }
+}
\ No newline at end of file
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ExecutorServiceAdapter.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ExecutorServiceAdapter.java
new file mode 100644
index 0000000..d1f41c5
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ExecutorServiceAdapter.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2014-2015 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 java.util.Collection;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+/**
+ * Test harness adapter for the ExecutorService.
+ */
+public class ExecutorServiceAdapter  implements ExecutorService {
+    @Override
+    public void shutdown() {
+
+    }
+
+    @Override
+    public List<Runnable> shutdownNow() {
+        return null;
+    }
+
+    @Override
+    public boolean isShutdown() {
+        return false;
+    }
+
+    @Override
+    public boolean isTerminated() {
+        return false;
+    }
+
+    @Override
+    public boolean awaitTermination(long timeout, TimeUnit unit)
+            throws InterruptedException {
+        return false;
+    }
+
+    @Override
+    public <T> Future<T> submit(Callable<T> task) {
+        return null;
+    }
+
+    @Override
+    public <T> Future<T> submit(Runnable task, T result) {
+        return null;
+    }
+
+    @Override
+    public Future<?> submit(Runnable task) {
+        return null;
+    }
+
+    @Override
+    public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)
+            throws InterruptedException {
+        return null;
+    }
+
+    @Override
+    public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
+            throws InterruptedException {
+        return null;
+    }
+
+    @Override
+    public <T> T invokeAny(Collection<? extends Callable<T>> tasks) throws InterruptedException, ExecutionException {
+        return null;
+    }
+
+    @Override
+    public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
+            throws InterruptedException, ExecutionException, TimeoutException {
+        return null;
+    }
+
+    @Override
+    public void execute(Runnable command) {
+
+    }
+}
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;
+    }
+}
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfPacketOut.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfPacketOut.java
new file mode 100644
index 0000000..f825707
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfPacketOut.java
@@ -0,0 +1,59 @@
+/*
+ * 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.OFPacketOut;
+import org.projectfloodlight.openflow.protocol.OFType;
+import org.projectfloodlight.openflow.protocol.action.OFAction;
+import org.projectfloodlight.openflow.types.OFBufferId;
+import org.projectfloodlight.openflow.types.OFPort;
+
+import java.util.List;
+
+/**
+ * Mock of the Open Flow packet out message.
+ */
+public class MockOfPacketOut extends OfMessageAdapter implements OFPacketOut {
+
+    public MockOfPacketOut() {
+        super(OFType.PACKET_OUT);
+    }
+
+    @Override
+    public OFBufferId getBufferId() {
+        return null;
+    }
+
+    @Override
+    public OFPort getInPort() {
+        return null;
+    }
+
+    @Override
+    public List<OFAction> getActions() {
+        return null;
+    }
+
+    @Override
+    public byte[] getData() {
+        return new byte[0];
+    }
+
+    @Override
+    public OFPacketOut.Builder createBuilder() {
+        return null;
+    }
+}
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfStatsRequest.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfStatsRequest.java
new file mode 100644
index 0000000..7213702
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/MockOfStatsRequest.java
@@ -0,0 +1,50 @@
+/*
+ * 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.OFStatsRequest;
+import org.projectfloodlight.openflow.protocol.OFStatsType;
+import org.projectfloodlight.openflow.protocol.OFType;
+import org.projectfloodlight.openflow.protocol.OFStatsReplyFlags;
+
+import java.util.Set;
+
+/**
+ * Mock of the Open Flow stats request message.
+ */
+public class MockOfStatsRequest extends OfMessageAdapter implements OFStatsRequest {
+
+    public MockOfStatsRequest() {
+        super(OFType.STATS_REQUEST);
+    }
+
+    @Override
+    public OFStatsType getStatsType() {
+        return null;
+    }
+
+    @Override
+    public Set<OFStatsReplyFlags> getFlags() {
+        return null;
+    }
+
+    @Override
+    public OFStatsRequest.Builder createBuilder() {
+        return null;
+    }
+}
diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/OfMessageAdapter.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/OfMessageAdapter.java
new file mode 100644
index 0000000..114cc93
--- /dev/null
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/OfMessageAdapter.java
@@ -0,0 +1,62 @@
+/*
+ * 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.jboss.netty.buffer.ChannelBuffer;
+import org.projectfloodlight.openflow.protocol.OFMessage;
+import org.projectfloodlight.openflow.protocol.OFType;
+import org.projectfloodlight.openflow.protocol.OFVersion;
+
+import com.google.common.hash.PrimitiveSink;
+
+/**
+ * Adapter for testing against an OpenFlow message.
+ */
+public class OfMessageAdapter implements OFMessage {
+    OFType type;
+
+    private OfMessageAdapter() {}
+
+    public OfMessageAdapter(OFType type) {
+        this.type = type;
+    }
+
+    @Override
+    public OFType getType() {
+        return type;
+    }
+
+    @Override
+    public OFVersion getVersion() {
+        return null;
+    }
+
+    @Override
+    public long getXid() {
+        return 0;
+    }
+
+    @Override
+    public void writeTo(ChannelBuffer channelBuffer) { }
+
+    @Override
+    public Builder createBuilder() {
+        return null;
+    }
+
+    @Override
+    public void putTo(PrimitiveSink sink) { }
+}