Add skeletal code for control message provider

Change-Id: I29e28ae268693f62631f2d70a5e6f74e482a4643

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onosproject</groupId>
+        <artifactId>onos-of-providers</artifactId>
+        <version>1.5.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>onos-of-provider-message</artifactId>
+    <packaging>bundle</packaging>
+
+    <description>ONOS OpenFlow control message provider</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-app-cpman-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>

+/*
+ * 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.provider.of.message.impl;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.cpman.message.ControlMessageProvider;
+import org.onosproject.cpman.message.ControlMessageProviderRegistry;
+import org.onosproject.cpman.message.ControlMessageProviderService;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+import org.slf4j.Logger;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Provider which uses an OpenFlow controller to collect control message.
+ */
+@Component(immediate = true)
+public class OpenFlowControlMessageProvider extends AbstractProvider
+        implements ControlMessageProvider {
+
+    private static final Logger LOG = getLogger(OpenFlowControlMessageProvider.class);
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ControlMessageProviderRegistry providerRegistry;
+
+    private ControlMessageProviderService providerService;
+
+    /**
+     * Creates a provider with the supplier identifier.
+     */
+    public OpenFlowControlMessageProvider() {
+        super(new ProviderId("of", "org.onosproject.provider.openflow"));
+    }
+
+    @Activate
+    protected void activate() {
+        providerService = providerRegistry.register(this);
+        LOG.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        providerRegistry.unregister(this);
+        providerService = null;
+        LOG.info("Stopped");
+    }
+}

+/*
+ * 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.
+ */
+/**
+ * Provider which uses an OpenFlow controller to collect control message.
+ */
+package org.onosproject.provider.of.message.impl;
\ No newline at end of file

+/*
+ * 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.provider.of.message.impl;
+
+/**
+ * OpenFlow control message provider test class.
+ */
+public class OpenFlowControlMessageProviderTest {
+}
\ No newline at end of file

@@ -39,6 +39,9 @@
         <module>meter</module>
         <module>base</module>
         <module>app</module>
+
+        <!-- optional -->
+        <module>message</module>
     </modules>
 
     <dependencies>