GUI -- Refactored DeviceTableRow to use abstract super class.
- added type and chassis ID to table data

Change-Id: I5758bfb3f9dcd659325265d734ffe9aa7ae1b0ad
diff --git a/web/gui/src/main/java/org/onosproject/gui/AbstractTableRow.java b/web/gui/src/main/java/org/onosproject/gui/AbstractTableRow.java
new file mode 100644
index 0000000..7be7172
--- /dev/null
+++ b/web/gui/src/main/java/org/onosproject/gui/AbstractTableRow.java
@@ -0,0 +1,65 @@
+/*
+ * 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.gui;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import java.util.HashMap;
+import java.util.Map;
+
+
+/**
+ * Provides a partial implementation of {@link TableRow}.
+ */
+public abstract class AbstractTableRow implements TableRow {
+
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+
+    private final Map<String, String> data = new HashMap<>();
+
+    @Override
+    public String get(String key) {
+        return data.get(key);
+    }
+
+    @Override
+    public ObjectNode toJsonNode() {
+        ObjectNode result = MAPPER.createObjectNode();
+        for (String id : columnIds()) {
+            result.put(id, data.get(id));
+        }
+        return result;
+    }
+
+    /**
+     * Subclasses must provide the list of column IDs.
+     *
+     * @return array of column IDs
+     */
+    protected abstract String[] columnIds();
+
+    /**
+     * Add a column ID to value binding.
+     *
+     * @param id the column ID
+     * @param value the cell value
+     */
+    protected void add(String id, String value) {
+        data.put(id, value);
+    }
+}
diff --git a/web/gui/src/main/java/org/onosproject/gui/DeviceGuiResource.java b/web/gui/src/main/java/org/onosproject/gui/DeviceGuiResource.java
index 3128456..403b8c6 100644
--- a/web/gui/src/main/java/org/onosproject/gui/DeviceGuiResource.java
+++ b/web/gui/src/main/java/org/onosproject/gui/DeviceGuiResource.java
@@ -43,7 +43,7 @@
     private static final ObjectMapper MAPPER = new ObjectMapper();
 
 
-    // return list of devices
+    // return the list of devices in appropriate sorted order
     @GET
     @Produces("application/json")
     public Response getDevices(
diff --git a/web/gui/src/main/java/org/onosproject/gui/DeviceTableRow.java b/web/gui/src/main/java/org/onosproject/gui/DeviceTableRow.java
index ab13467..423657a 100644
--- a/web/gui/src/main/java/org/onosproject/gui/DeviceTableRow.java
+++ b/web/gui/src/main/java/org/onosproject/gui/DeviceTableRow.java
@@ -16,68 +16,58 @@
 
 package org.onosproject.gui;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.onosproject.net.Device;
 import org.onosproject.net.device.DeviceService;
 
-import java.util.HashMap;
-import java.util.Map;
-
-public class DeviceTableRow implements TableRow {
+/**
+ * TableRow implementation for {@link Device devices}.
+ */
+public class DeviceTableRow extends AbstractTableRow {
 
     private static final String ID = "id";
     private static final String AVAILABLE = "available";
     private static final String AVAILABLE_IID = "_iconid_available";
-    private static final String TYPE = "type";
+    private static final String TYPE_IID = "_iconid_type";
+    private static final String DEV_ICON_PREFIX = "devIcon_";
     private static final String ROLE = "role";
     private static final String MFR = "mfr";
     private static final String HW = "hw";
     private static final String SW = "sw";
     private static final String SERIAL = "serial";
     private static final String PROTOCOL = "protocol";
+    private static final String CHASSISID = "chassisid";
+
+    private static final String[] COL_IDS = {
+            ID, AVAILABLE, AVAILABLE_IID, TYPE_IID, ROLE,
+            MFR, HW, SW, SERIAL, PROTOCOL, CHASSISID
+    };
 
     private static final String ICON_ID_ONLINE = "deviceOnline";
     private static final String ICON_ID_OFFLINE = "deviceOffline";
 
-    private static final ObjectMapper MAPPER = new ObjectMapper();
-
-    private final Map<String, String> data = new HashMap<>();
-
     public DeviceTableRow(DeviceService service, Device d) {
         boolean available = service.isAvailable(d.id());
         String iconId = available ? ICON_ID_ONLINE : ICON_ID_OFFLINE;
 
-        data.put(ID, d.id().toString());
-        data.put(AVAILABLE, Boolean.toString(available));
-        data.put(AVAILABLE_IID, iconId);
-        data.put(TYPE, d.type().toString());
-        data.put(ROLE, service.getRole(d.id()).toString());
-        data.put(MFR, d.manufacturer());
-        data.put(HW, d.hwVersion());
-        data.put(SW, d.swVersion());
-        data.put(SERIAL, d.serialNumber());
-        data.put(PROTOCOL, d.annotations().value(PROTOCOL));
+        add(ID, d.id().toString());
+        add(AVAILABLE, Boolean.toString(available));
+        add(AVAILABLE_IID, iconId);
+        add(TYPE_IID, getTypeIconId(d));
+        add(ROLE, service.getRole(d.id()).toString());
+        add(MFR, d.manufacturer());
+        add(HW, d.hwVersion());
+        add(SW, d.swVersion());
+        add(SERIAL, d.serialNumber());
+        add(PROTOCOL, d.annotations().value(PROTOCOL));
+        add(CHASSISID, d.chassisId().toString());
+    }
+
+    private String getTypeIconId(Device d) {
+        return DEV_ICON_PREFIX + d.type().toString();
     }
 
     @Override
-    public String get(String key) {
-        return data.get(key);
-    }
-
-    @Override
-    public ObjectNode toJsonNode() {
-        ObjectNode result = MAPPER.createObjectNode();
-        result.put(ID, data.get(ID));
-        result.put(AVAILABLE, data.get(AVAILABLE));
-        result.put(AVAILABLE_IID, data.get(AVAILABLE_IID));
-        result.put(TYPE, data.get(TYPE));
-        result.put(ROLE, data.get(ROLE));
-        result.put(MFR, data.get(MFR));
-        result.put(HW, data.get(HW));
-        result.put(SW, data.get(SW));
-        result.put(SERIAL, data.get(SERIAL));
-        result.put(PROTOCOL, data.get(PROTOCOL));
-        return result;
+    protected String[] columnIds() {
+        return COL_IDS;
     }
 }
diff --git a/web/gui/src/main/java/org/onosproject/gui/RowComparator.java b/web/gui/src/main/java/org/onosproject/gui/RowComparator.java
index f14a660..7c79fc2 100644
--- a/web/gui/src/main/java/org/onosproject/gui/RowComparator.java
+++ b/web/gui/src/main/java/org/onosproject/gui/RowComparator.java
@@ -29,6 +29,13 @@
     private final String colId;
     private final Direction dir;
 
+    /**
+     * Constructs a comparator for table rows that uses the given
+     * column ID and direction.
+     *
+     * @param colId the column to sort on
+     * @param dir the direction to sort in
+     */
     public RowComparator(String colId, Direction dir) {
         if (colId == null || dir == null) {
             throw new NullPointerException("Null parameters not allowed");