GUI -- refactored all the table views (server side) to use the new TableModel method of data generation.

Change-Id: Ib8a188ad432ff335db6cff1e49e08dbaf039436b
diff --git a/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java b/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
index 5dd11a4..9f456b9 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
@@ -26,6 +26,7 @@
 /**
  * Provides a partial implementation of {@link TableRow}.
  */
+@Deprecated
 public abstract class AbstractTableRow implements TableRow {
 
     private static final ObjectMapper MAPPER = new ObjectMapper();
diff --git a/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java b/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
index 9859a65..86f25c1 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
@@ -21,6 +21,7 @@
 /**
  * Comparator for {@link TableRow}.
  */
+@Deprecated
 public class RowComparator implements Comparator<TableRow> {
     /** Designates the sort direction. */
     public enum Direction {
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableModel.java b/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
index 2c3ffc5..91e23be 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
@@ -46,8 +46,8 @@
  */
 public class TableModel {
 
-    private static final CellComparator DEF_CMP = new DefaultCellComparator();
-    private static final CellFormatter DEF_FMT = new DefaultCellFormatter();
+    private static final CellComparator DEF_CMP = DefaultCellComparator.INSTANCE;
+    private static final CellFormatter DEF_FMT = DefaultCellFormatter.INSTANCE;
 
     private final String[] columnIds;
     private final Set<String> idSet;
@@ -99,13 +99,16 @@
     }
 
     /**
-     * Returns the {@link TableRow} representation of the rows in this table.
+     * Returns the array of column IDs for this table model.
+     * <p>
+     * Implementation note: we are knowingly passing you a reference to
+     * our internal array to avoid copying. Don't mess with it. It's your
+     * table you'll break if you do!
      *
-     * @return formatted table rows
+     * @return the column identifiers
      */
-    // TODO: still need to decide if we need this
-    public TableRow[] getTableRows() {
-        return new TableRow[0];
+    public String[] getColumnIds() {
+        return columnIds;
     }
 
     /**
@@ -113,7 +116,6 @@
      *
      * @return raw table rows
      */
-    // TODO: still need to decide if we should expose this
     public Row[] getRows() {
         return rows.toArray(new Row[rows.size()]);
     }
@@ -264,9 +266,22 @@
          * @param columnId column identifier
          * @return formatted cell value
          */
-        public String getAsString(String columnId) {
+        String getAsString(String columnId) {
             return getFormatter(columnId).format(get(columnId));
         }
+
+        /**
+         * Returns the row as an array of formatted strings.
+         *
+         * @return the formatted row data
+         */
+        public String[] getAsFormattedStrings() {
+            List<String> formatted = new ArrayList<>(columnCount());
+            for (String c : columnIds) {
+                formatted.add(getAsString(c));
+            }
+            return formatted.toArray(new String[formatted.size()]);
+        }
     }
 
     private static final String DESC = "desc";
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java b/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
index f90c187..b8d4857 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
@@ -17,10 +17,9 @@
 package org.onosproject.ui.table;
 
 import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.ui.JsonUtils;
 import org.onosproject.ui.RequestHandler;
 
-import java.util.Arrays;
-
 /**
  * Message handler specifically for table views.
  */
@@ -47,29 +46,66 @@
 
     @Override
     public void process(long sid, ObjectNode payload) {
-        RowComparator rc = TableUtils.createRowComparator(payload, defaultColId());
-        TableRow[] rows = generateTableRows(payload);
-        Arrays.sort(rows, rc);
+        TableModel tm = createTableModel();
+        populateTable(tm, payload);
+
+        String sortCol = JsonUtils.string(payload, "sortCol", defaultColumnId());
+        String sortDir = JsonUtils.string(payload, "sortDir", "asc");
+        tm.sort(sortCol, TableModel.sortDir(sortDir));
+
         ObjectNode rootNode = MAPPER.createObjectNode();
-        rootNode.set(nodeName, TableUtils.generateArrayNode(rows));
+        rootNode.set(nodeName, TableUtils.generateArrayNode(tm));
         sendMessage(respType, 0, rootNode);
     }
 
     /**
-     * Returns the default column ID, when one is not supplied in the payload
-     * defining the column on which to sort. This implementation returns "id".
+     * Creates the table model (devoid of data) using {@link #getColumnIds()}
+     * to initialize it, ready to be populated.
+     * <p>
+     * This default implementation returns a table model with default
+     * formatters and comparators for all columns.
      *
-     * @return default sort column id
+     * @return an empty table model
      */
-    protected String defaultColId() {
+    protected TableModel createTableModel() {
+        return new TableModel(getColumnIds());
+    }
+
+    /**
+     * Returns the default column ID to be used when one is not supplied in
+     * the payload as the column on which to sort.
+     * <p>
+     * This default implementation returns "id".
+     *
+     * @return default sort column identifier
+     */
+    protected String defaultColumnId() {
         return "id";
     }
 
     /**
-     * Subclasses should generate table rows for their specific table instance.
+     * Subclasses should return the array of column IDs with which
+     * to initialize their table model.
      *
-     * @param payload provided in case custom parameters are present
-     * @return generated table rows
+     * @return the column IDs
      */
-    protected abstract TableRow[] generateTableRows(ObjectNode payload);
+    protected abstract String[] getColumnIds();
+
+    /**
+     * Subclasses should populate the table model by adding
+     * {@link TableModel.Row rows}.
+     * <pre>
+     *     tm.addRow()
+     *         .cell(COL_ONE, ...)
+     *         .cell(COL_TWO, ...)
+     *         ... ;
+     * </pre>
+     * The request payload is provided in case there are request filtering
+     * parameters (other than sort column and sort direction) that are required
+     * to generate the appropriate data.
+     *
+     * @param tm the table model
+     * @param payload request payload
+     */
+    protected abstract void populateTable(TableModel tm, ObjectNode payload);
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableRow.java b/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
index 4775687..1824be8 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
@@ -22,6 +22,7 @@
 /**
  * Defines a table row abstraction to support sortable tables on the GUI.
  */
+@Deprecated
 public interface TableRow {
 
     // TODO: Define TableCell interface and return that, rather than String
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java b/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
index 9f63cba..eb2dff7 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
@@ -16,10 +16,10 @@
 
 package org.onosproject.ui.table;
 
+import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.onosproject.ui.JsonUtils;
 
 /**
  * Provides static utility methods for dealing with tables.
@@ -32,46 +32,27 @@
     private TableUtils() { }
 
     /**
-     * Produces a JSON array node from the specified table rows.
+     * Generates a JSON array node from a table model.
      *
-     * @param rows table rows
-     * @return JSON array
+     * @param tm the table model
+     * @return the array node representation
      */
-    public static ArrayNode generateArrayNode(TableRow[] rows) {
+    public static ArrayNode generateArrayNode(TableModel tm) {
         ArrayNode array = MAPPER.createArrayNode();
-        for (TableRow r : rows) {
-            array.add(r.toJsonNode());
+        for (TableModel.Row r : tm.getRows()) {
+            array.add(toJsonNode(r, tm));
         }
         return array;
     }
 
-    /**
-     * Creates a row comparator for the given request. The ID of the column
-     * to sort on is the payload's "sortCol" property (defaults to "id").
-     * The direction for the sort is the payload's "sortDir" property
-     * (defaults to "asc").
-     *
-     * @param payload the event payload
-     * @return a row comparator
-     */
-    public static RowComparator createRowComparator(ObjectNode payload) {
-        return createRowComparator(payload, "id");
-    }
-
-    /**
-     * Creates a row comparator for the given request. The ID of the column to
-     * sort on is the payload's "sortCol" property (or the specified default).
-     * The direction for the sort is the payload's "sortDir" property
-     * (defaults to "asc").
-     *
-     * @param payload the event payload
-     * @param defColId the default column ID
-     * @return a row comparator
-     */
-    public static RowComparator createRowComparator(ObjectNode payload,
-                                                    String defColId) {
-        String sortCol = JsonUtils.string(payload, "sortCol", defColId);
-        String sortDir = JsonUtils.string(payload, "sortDir", "asc");
-        return new RowComparator(sortCol, RowComparator.direction(sortDir));
+    private static JsonNode toJsonNode(TableModel.Row row, TableModel tm) {
+        ObjectNode result = MAPPER.createObjectNode();
+        String[] keys = tm.getColumnIds();
+        String[] cells = row.getAsFormattedStrings();
+        int n = keys.length;
+        for (int i = 0; i < n; i++) {
+            result.put(keys[i], cells[i]);
+        }
+        return result;
     }
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java
new file mode 100644
index 0000000..f6ccf2c0
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * 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.ui.table.cell;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats an application identifier as "(app-id) : (app-name)".
+ */
+public class AppIdFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        ApplicationId appId = (ApplicationId) value;
+        return appId.id() + " : " + appId.name();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new AppIdFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java
new file mode 100644
index 0000000..18f7233
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * 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.ui.table.cell;
+
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats a connect point as "(element-id)/(port)".
+ */
+public class ConnectPointFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        ConnectPoint cp = (ConnectPoint) value;
+        return cp.elementId() + "/" + cp.port();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new ConnectPointFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
index 7846f89..fa49755 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
@@ -17,6 +17,8 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellComparator;
+
 /**
  * A default cell comparator. Implements a lexicographical compare function
  * (i.e. string sorting). Uses the objects' toString() method and then
@@ -24,8 +26,14 @@
  * are considered "smaller" than any non-null value.
  */
 public class DefaultCellComparator extends AbstractCellComparator {
+
     @Override
     protected int nonNullCompare(Object o1, Object o2) {
         return o1.toString().compareTo(o2.toString());
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new DefaultCellComparator();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
index c030236..5e4f5ba 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
@@ -17,12 +17,20 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellFormatter;
+
 /**
  * A default cell formatter. Uses the object's toString() method.
  */
 public class DefaultCellFormatter extends AbstractCellFormatter {
+
     @Override
     public String nonNullFormat(Object value) {
         return value.toString();
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new DefaultCellFormatter();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
index d4aaade..8104f48 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
@@ -17,12 +17,20 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellFormatter;
+
 /**
- * Formats integer values as hex strings.
+ * Formats integer values as hex strings with a "0x" prefix.
  */
 public class HexFormatter extends AbstractCellFormatter {
+
     @Override
     protected String nonNullFormat(Object value) {
         return "0x" + Integer.toHexString((Integer) value);
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new HexFormatter();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java
new file mode 100644
index 0000000..9d6024d
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * 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.ui.table.cell;
+
+import org.onosproject.net.HostLocation;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats a host location as "(device-id)/(port)".
+ */
+public class HostLocationFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        HostLocation loc = (HostLocation) value;
+        return loc.deviceId() + "/" + loc.port();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new HostLocationFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
index c399d53..ddd90eb 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
@@ -17,14 +17,22 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellComparator;
+
 /**
  * An integer-based cell comparator.
  * Note that null values are acceptable and are considered "smaller" than
  * any non-null value.
  */
 public class IntComparator extends AbstractCellComparator {
+
     @Override
     protected int nonNullCompare(Object o1, Object o2) {
         return ((int) o1) - ((int) o2);
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new IntComparator();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java
new file mode 100644
index 0000000..3234e50
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java
@@ -0,0 +1,39 @@
+/*
+ * 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.ui.table.cell;
+
+import org.onosproject.ui.table.CellComparator;
+
+/**
+ * A long-based cell comparator.
+ * Note that null values are acceptable and are considered "smaller" than
+ * any non-null value.
+ */
+public class LongComparator extends AbstractCellComparator {
+
+    @Override
+    protected int nonNullCompare(Object o1, Object o2) {
+        long diff = ((long) o1) - ((long) o2);
+        return diff == 0 ? 0 : (diff < 0 ? -1 : 1);
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new LongComparator();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java
new file mode 100644
index 0000000..e0aec9d
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java
@@ -0,0 +1,41 @@
+/*
+ * 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.ui.table.cell;
+
+import org.joda.time.DateTime;
+import org.joda.time.format.DateTimeFormat;
+import org.joda.time.format.DateTimeFormatter;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats time values using {@link DateTimeFormatter}.
+ */
+public class TimeFormatter extends AbstractCellFormatter {
+
+    private static final DateTimeFormatter DTF = DateTimeFormat.longTime();
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        return DTF.print((DateTime) value);
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new TimeFormatter();
+}