GUI -- Added applications view.
Fixed table.js column width computation.
Fixed app.xml files to leave out ONOS from description.

Change-Id: Icfe323e63c7965dd8c3a268421ea58065c5c8236
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
new file mode 100644
index 0000000..800b57d
--- /dev/null
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
@@ -0,0 +1,106 @@
+/*
+ * 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.impl;
+
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableSet;
+import org.onosproject.app.ApplicationService;
+import org.onosproject.app.ApplicationState;
+import org.onosproject.core.Application;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static org.onosproject.app.ApplicationState.ACTIVE;
+
+/**
+ * Message handler for application view related messages.
+ */
+public class ApplicationViewMessageHandler extends AbstractTabularViewMessageHandler {
+
+    /**
+     * Creates a new message handler for the application messages.
+     */
+    protected ApplicationViewMessageHandler() {
+        super(ImmutableSet.of("appDataRequest"));
+    }
+
+    @Override
+    public void process(ObjectNode message) {
+        ObjectNode payload = payload(message);
+        String sortCol = string(payload, "sortCol", "id");
+        String sortDir = string(payload, "sortDir", "asc");
+
+        ApplicationService service = get(ApplicationService.class);
+        TableRow[] rows = generateTableRows(service);
+        RowComparator rc =
+                new RowComparator(sortCol, RowComparator.direction(sortDir));
+        Arrays.sort(rows, rc);
+        ArrayNode applications = generateArrayNode(rows);
+        ObjectNode rootNode = mapper.createObjectNode();
+        rootNode.set("applications", applications);
+
+        connection().sendMessage("appDataResponse", 0, rootNode);
+    }
+
+    private TableRow[] generateTableRows(ApplicationService service) {
+        List<TableRow> list = service.getApplications().stream()
+                .map(application -> new ApplicationTableRow(service, application))
+                .collect(Collectors.toList());
+        return list.toArray(new TableRow[list.size()]);
+    }
+
+    /**
+     * TableRow implementation for {@link org.onosproject.core.Application applications}.
+     */
+    private static class ApplicationTableRow extends AbstractTableRow {
+
+        private static final String STATE = "state";
+        private static final String STATE_IID = "_iconid_state";
+        private static final String ID = "id";
+        private static final String VERSION = "version";
+        private static final String ORIGIN = "origin";
+        private static final String DESC = "desc";
+
+        private static final String[] COL_IDS = {
+                STATE, STATE_IID, ID, VERSION, ORIGIN, DESC
+        };
+
+        private static final String ICON_ID_ACTIVE = "appActive";
+        private static final String ICON_ID_INACTIVE = "appInactive";
+
+
+        public ApplicationTableRow(ApplicationService service, Application app) {
+            ApplicationState state = service.getState(app.id());
+            String iconId = state == ACTIVE ? ICON_ID_ACTIVE : ICON_ID_INACTIVE;
+
+            add(STATE, state.toString());
+            add(STATE_IID, iconId);
+            add(ID, app.id().name());
+            add(VERSION, app.version().toString());
+            add(ORIGIN, app.origin());
+            add(DESC, app.description());
+        }
+
+        @Override
+        protected String[] columnIds() {
+            return COL_IDS;
+        }
+    }
+
+}
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java b/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
index 73f7b8e..f0541f6 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
@@ -59,12 +59,14 @@
         List<UiView> coreViews = of(new UiView("topo", "Topology View"),
                                     new UiView("device", "Devices"),
                                     new UiView("host", "Hosts"),
+                                    new UiView("app", "Applications"),
                                     new UiView("sample", "Sample"));
         UiMessageHandlerFactory messageHandlerFactory =
                 () -> ImmutableList.of(
                         new TopologyViewMessageHandler(),
                         new DeviceViewMessageHandler(),
-                        new HostViewMessageHandler()
+                        new HostViewMessageHandler(),
+                        new ApplicationViewMessageHandler()
                 );
         return new UiExtension(coreViews, messageHandlerFactory, "core",
                                UiExtensionManager.class.getClassLoader());