minor formatting changes

Change-Id: I361955b820489793ffb8f6b9b9ff24d429e1dd99
diff --git a/core/api/src/main/java/org/onosproject/net/AnnotationKeys.java b/core/api/src/main/java/org/onosproject/net/AnnotationKeys.java
index 4949bc4..8c5fb79 100644
--- a/core/api/src/main/java/org/onosproject/net/AnnotationKeys.java
+++ b/core/api/src/main/java/org/onosproject/net/AnnotationKeys.java
@@ -25,8 +25,10 @@
  */
 public final class AnnotationKeys {
 
+
     // Prohibit instantiation
-    private AnnotationKeys() {}
+    private AnnotationKeys() {
+    }
 
     /**
      * Annotation key for instance name.
@@ -125,12 +127,22 @@
     public static final String OWNER = "owner";
 
     /**
+     * Annotation key for the channel id.
+     */
+    public static final String CHANNEL_ID = "channelId";
+
+    /**
+     * Annotation key for the management address.
+     */
+    public static final String MANAGEMENT_ADDRESS = "managementAddress";
+
+    /**
      * Returns the value annotated object for the specified annotation key.
      * The annotated value is expected to be String that can be parsed as double.
      * If parsing fails, the returned value will be 1.0.
      *
      * @param annotated annotated object whose annotated value is obtained
-     * @param key key of annotation
+     * @param key       key of annotation
      * @return double value of annotated object for the specified key
      */
     public static double getAnnotatedValue(Annotated annotated, String key) {
diff --git a/core/api/src/main/java/org/onosproject/net/config/basics/BasicDeviceConfig.java b/core/api/src/main/java/org/onosproject/net/config/basics/BasicDeviceConfig.java
index fd8bfa3..afde9a9 100644
--- a/core/api/src/main/java/org/onosproject/net/config/basics/BasicDeviceConfig.java
+++ b/core/api/src/main/java/org/onosproject/net/config/basics/BasicDeviceConfig.java
@@ -25,6 +25,7 @@
 
     public static final String TYPE = "type";
     public static final String DRIVER = "driver";
+    public static final String MANAGEMENT_ADDRESS = "managementAddress";
 
     /**
      * Returns the device type.
@@ -64,6 +65,25 @@
         return (BasicElementConfig) setOrClear(DRIVER, driverName);
     }
 
+    /**
+     * Returns the device management ip (ip:port).
+     *
+     * @return device management address (ip:port) or null if not set
+     */
+    public String managementAddress() {
+        return get(MANAGEMENT_ADDRESS, null);
+    }
+
+    /**
+     * Sets the driver name.
+     *
+     * @param managementAddress new device management address (ip:port); null to clear
+     * @return self
+     */
+    public BasicElementConfig managementAddress(String managementAddress) {
+        return (BasicElementConfig) setOrClear(MANAGEMENT_ADDRESS, managementAddress);
+    }
+
     // TODO: device port meta-data to be configured via BasicPortsConfig
     // TODO: device credentials/keys
 
diff --git a/core/net/src/main/java/org/onosproject/net/device/impl/BasicDeviceOperator.java b/core/net/src/main/java/org/onosproject/net/device/impl/BasicDeviceOperator.java
index 7900d18..fa90eb6 100644
--- a/core/net/src/main/java/org/onosproject/net/device/impl/BasicDeviceOperator.java
+++ b/core/net/src/main/java/org/onosproject/net/device/impl/BasicDeviceOperator.java
@@ -15,21 +15,21 @@
  */
 package org.onosproject.net.device.impl;
 
-import static org.slf4j.LoggerFactory.getLogger;
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import org.onosproject.net.config.ConfigOperator;
-import org.onosproject.net.config.basics.BasicDeviceConfig;
 import org.onosproject.net.AnnotationKeys;
 import org.onosproject.net.DefaultAnnotations;
 import org.onosproject.net.Device;
 import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.config.ConfigOperator;
+import org.onosproject.net.config.basics.BasicDeviceConfig;
 import org.onosproject.net.device.DefaultDeviceDescription;
 import org.onosproject.net.device.DeviceDescription;
 import org.slf4j.Logger;
 
 import java.util.Objects;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Implementations of merge policies for various sources of device configuration
  * information. This includes applications, provides, and network configurations.
@@ -46,7 +46,7 @@
      * Generates a DeviceDescription containing fields from a DeviceDescription and
      * a DeviceConfig.
      *
-     * @param bdc the device config entity from network config
+     * @param bdc   the device config entity from network config
      * @param descr a DeviceDescription
      * @return DeviceDescription based on both sources
      */
@@ -70,7 +70,7 @@
      * Generates an annotation from an existing annotation and DeviceConfig.
      *
      * @param bdc the device config entity from network config
-     * @param an the annotation
+     * @param an  the annotation
      * @return annotation combining both sources
      */
     public static SparseAnnotations combine(BasicDeviceConfig bdc, SparseAnnotations an) {
@@ -93,6 +93,9 @@
         if (bdc.owner() != null) {
             newBuilder.set(AnnotationKeys.OWNER, bdc.owner());
         }
+        if (bdc.managementAddress() != null) {
+            newBuilder.set(AnnotationKeys.MANAGEMENT_ADDRESS, bdc.managementAddress());
+        }
         DefaultAnnotations newAnnotations = newBuilder.build();
         return DefaultAnnotations.union(an, newAnnotations);
     }
diff --git a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
index 2108ba4..4fa961f 100644
--- a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
+++ b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
@@ -323,8 +323,9 @@
             ChassisId cId = new ChassisId(dpid.value());
 
             SparseAnnotations annotations = DefaultAnnotations.builder()
-                    .set("protocol", sw.factory().getVersion().toString())
-                    .set("channelId", sw.channelId())
+                    .set(AnnotationKeys.PROTOCOL, sw.factory().getVersion().toString())
+                    .set(AnnotationKeys.CHANNEL_ID, sw.channelId())
+                    .set(AnnotationKeys.MANAGEMENT_ADDRESS, sw.channelId().split(":")[0])
                     .build();
 
             DeviceDescription description =