Adding GUI for displaying the DHCP Mappings. DHCP REST API disabled.

Change-Id: I59f4600e3efd3e53f3ebcb5d4ced7381625529c4
diff --git a/onos-app-dhcpserver/pom.xml b/onos-app-dhcpserver/pom.xml
index 4797108..de84083 100644
--- a/onos-app-dhcpserver/pom.xml
+++ b/onos-app-dhcpserver/pom.xml
@@ -117,6 +117,7 @@
 
     <build>
         <plugins>
+            <!-- FIXME this breaks the UI
             <plugin>
                 <groupId>org.apache.felix</groupId>
                 <artifactId>maven-bundle-plugin</artifactId>
@@ -155,6 +156,7 @@
                     </instructions>
                 </configuration>
             </plugin>
+            -->
         </plugins>
     </build>
 
diff --git a/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DHCPUi.java b/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DHCPUi.java
new file mode 100644
index 0000000..a8cf50a
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DHCPUi.java
@@ -0,0 +1,73 @@
+/*
+ * 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.dhcpserver.impl;
+
+import com.google.common.collect.ImmutableList;
+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.apache.felix.scr.annotations.Service;
+import org.onosproject.ui.UiExtension;
+import org.onosproject.ui.UiExtensionService;
+import org.onosproject.ui.UiMessageHandlerFactory;
+import org.onosproject.ui.UiView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+import static org.onosproject.ui.UiView.Category.NETWORK;
+
+/**
+ * Mechanism to stream data to the GUI.
+ */
+@Component(immediate = true, enabled = true)
+@Service(value = DHCPUi.class)
+public class DHCPUi {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+    private static final ClassLoader CL = DHCPUi.class.getClassLoader();
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected UiExtensionService uiExtensionService;
+
+    private final UiMessageHandlerFactory messageHandlerFactory =
+            () -> ImmutableList.of(new DhcpViewMessageHandler());
+
+    private final List<UiView> views = ImmutableList.of(
+            new UiView(NETWORK, "dhcp", "DHCP Server")
+    );
+
+    private final UiExtension uiExtension =
+            new UiExtension.Builder(CL, views)
+                    .messageHandlerFactory(messageHandlerFactory)
+                    .build();
+
+    @Activate
+    protected void activate() {
+        uiExtensionService.register(uiExtension);
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        uiExtensionService.unregister(uiExtension);
+        log.info("Stopped");
+    }
+
+}
\ No newline at end of file
diff --git a/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DhcpViewMessageHandler.java b/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DhcpViewMessageHandler.java
new file mode 100644
index 0000000..ee5a224
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/java/org/onosproject/dhcpserver/impl/DhcpViewMessageHandler.java
@@ -0,0 +1,86 @@
+/*
+ * 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.dhcpserver.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableSet;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.MacAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcpserver.DHCPService;
+import org.onosproject.ui.RequestHandler;
+import org.onosproject.ui.UiMessageHandler;
+import org.onosproject.ui.table.TableModel;
+import org.onosproject.ui.table.TableRequestHandler;
+
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * DHCPViewMessageHandler class implementation.
+ */
+public class DhcpViewMessageHandler extends UiMessageHandler {
+
+    private static final String DHCP_DATA_REQ = "dhcpDataRequest";
+    private static final String DHCP_DATA_RESP = "dhcpDataResponse";
+    private static final String DHCP = "dhcps";
+
+    private static final String MAC = "mac";
+    private static final String IP = "ip";
+
+    private static final String[] COL_IDS = {
+            MAC, IP
+    };
+
+    @Override
+    protected Collection<RequestHandler> createRequestHandlers() {
+        return ImmutableSet.of(
+                new DataRequestHandler()
+        );
+    }
+
+    private final class DataRequestHandler extends TableRequestHandler {
+
+        private DataRequestHandler() {
+            super(DHCP_DATA_REQ, DHCP_DATA_RESP, DHCP);
+        }
+
+        @Override
+        protected String defaultColumnId() {
+            return MAC;
+        }
+
+        @Override
+        protected String[] getColumnIds() {
+            return COL_IDS;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            DHCPService dhcpService = AbstractShellCommand.get(DHCPService.class);
+            Map<MacAddress, Ip4Address> allocationMap = dhcpService.listMapping();
+
+            for (Map.Entry<MacAddress, Ip4Address> entry : allocationMap.entrySet()) {
+                populateRow(tm.addRow(), entry);
+            }
+        }
+
+        private void populateRow(TableModel.Row row, Map.Entry<MacAddress, Ip4Address> entry) {
+            row.cell(MAC, entry.getKey())
+                    .cell(IP, entry.getValue());
+        }
+    }
+}
diff --git a/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.css b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.css
new file mode 100644
index 0000000..e0a2931
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.css
@@ -0,0 +1,27 @@
+/*
+ * 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.
+ */
+
+/*
+ ONOS GUI -- DHCP Server -- CSS file
+ */
+
+#ov-dhcp h2 {
+    display: inline-block;
+}
+
+#ov-dhcp div.ctrl-btns {
+    width: 45px;
+}
diff --git a/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.html b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.html
new file mode 100644
index 0000000..09f67e0
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.html
@@ -0,0 +1,45 @@
+<!-- DHCP Server partial HTML -->
+<div id="ov-dhcp">
+  <div class="tabular-header">
+    <h2>DHCP Mappings ({{tableData.length}} total)</h2>
+    <div class="ctrl-btns">
+      <div class="refresh" ng-class="{active: autoRefresh}"
+           icon icon-size="36" icon-id="refresh"
+           tooltip tt-msg="autoRefreshTip"
+           ng-click="toggleRefresh()"></div>
+    </div>
+  </div>
+
+  <div class="summary-list" onos-table-resize>
+    <div ng-show="loading" class="loading-wheel"
+         icon icon-id="loading" icon-size="75"></div>
+
+    <div class="table-header" onos-sortable-header>
+      <table>
+        <tr>
+          <td colId="mac" sortable>MAC Address</td>
+          <td colId="ip" sortable>IP Address</td>
+        </tr>
+      </table>
+    </div>
+
+    <div class="table-body">
+      <table onos-flash-changes id-prop="mac">
+        <tr ng-if="!tableData.length" class="no-data">
+          <td colspan="2">
+            No mappings found
+          </td>
+        </tr>
+
+        <tr ng-repeat="dhcp in tableData track by $index"
+            ng-click="selectCallback($event, dhcp)"
+            ng-repeat-complete row-id="{{dhcp.mac}}">
+          <td>{{dhcp.mac}}</td>
+          <td>{{dhcp.ip}}</td>
+        </tr>
+      </table>
+    </div>
+
+  </div>
+
+</div>
diff --git a/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.js b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.js
new file mode 100644
index 0000000..061d0de
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/resources/app/view/dhcp/dhcp.js
@@ -0,0 +1,51 @@
+/*
+ * 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.
+ */
+
+/*
+ ONOS GUI -- DHCP Server View Module
+ */
+
+(function () {
+    'use strict';
+
+    // injected refs
+    var $log, $scope;
+
+    angular.module('ovDhcp', [])
+        .controller('OvDhcpCtrl',
+        ['$log', '$scope', 'TableBuilderService',
+
+            function (_$log_, _$scope_, tbs) {
+                $log = _$log_;
+                $scope = _$scope_;
+
+                function selCb($event, row) {
+                    $log.debug('Got a click on:', row);
+                }
+
+                tbs.buildTable({
+                    scope: $scope,
+                    tag: 'dhcp',
+                    selCb: selCb
+                });
+
+                $scope.$on('$destroy', function () {
+                    $log.debug('OvDhcpCtrl has been destroyed');
+                });
+
+                $log.log('OvDhcpCtrl has been created');
+            }]);
+}());
\ No newline at end of file
diff --git a/onos-app-dhcpserver/src/main/resources/css.html b/onos-app-dhcpserver/src/main/resources/css.html
new file mode 100644
index 0000000..d02ad44
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/resources/css.html
@@ -0,0 +1 @@
+<link rel="stylesheet" href="app/view/dhcp/dhcp.css">
\ No newline at end of file
diff --git a/onos-app-dhcpserver/src/main/resources/js.html b/onos-app-dhcpserver/src/main/resources/js.html
new file mode 100644
index 0000000..d37b576
--- /dev/null
+++ b/onos-app-dhcpserver/src/main/resources/js.html
@@ -0,0 +1 @@
+<script src="app/view/dhcp/dhcp.js"></script>
\ No newline at end of file