Added button for taking offline leniently

There is now an optional dependency to lenient
shutdown plugin, allowing admins to take slaves
offline leniently if the Lenient Shutdown Plugin
is already installed.

Change-Id: I6c55998900f2f4702b2b6dd91f048f026c332a6e

pom.xml

@@ -223,6 +223,12 @@
             <artifactId>windows-slaves</artifactId>
             <version>1.0</version>
         </dependency>
+        <dependency>
+            <groupId>com.sonymobile.jenkins.plugins.lenientshutdown</groupId>
+            <artifactId>lenientshutdown</artifactId>
+            <version>1.0.0</version>
+            <optional>true</optional>
+        </dependency>
 
     </dependencies>
 

src/main/java/com/sonyericsson/hudson/plugins/multislaveconfigplugin/NodeManageLink.java

@@ -24,6 +24,7 @@
 
 package com.sonyericsson.hudson.plugins.multislaveconfigplugin;
 
+import com.sonymobile.jenkins.plugins.lenientshutdown.PluginImpl;
 import hudson.Extension;
 import hudson.Functions;
 import hudson.Util;
@@ -784,6 +785,38 @@ public boolean takeOffline(String reason, StaplerRequest req, StaplerResponse rs
         return result;
     }
 
+    /**
+     * Requests the selected slaves to go offline leniently. Only possible if Lenient Shutdown Plugin is installed.
+     * @param rsp StaplerResponse.
+     * @param req StaplerRequest.
+     * @return false if no nodes were selected or something else goes wrong, otherwise true
+     */
+    @JavaScriptMethod
+    public boolean takeOfflineLeniently(StaplerRequest req, StaplerResponse rsp) {
+        // Throws exception on failure. This is handled at a higher level.
+        Hudson.getInstance().checkPermission(getRequiredPermission());
+        String currentSessionId = req.getSession().getId();
+        NodeList nodeList = getNodeList(currentSessionId);
+
+        boolean takenOffline = false;
+
+        if (isLenientShutdownPluginInstalled()) {
+            PluginImpl lenientShutdownInstance = PluginImpl.getInstance();
+
+            if (nodeList != null) {
+                takenOffline = true;
+                for (Node node : nodeList) {
+                    String nodeName = node.getNodeName();
+                    if (!lenientShutdownInstance.isNodeShuttingDown(nodeName)) {
+                        lenientShutdownInstance.setNodeOffline(node.toComputer());
+                    }
+                }
+            }
+        }
+
+        return takenOffline;
+    }
+
     /**
      * Connects (not forced) to selected slaves.
      * @param rsp StaplerResponse.
@@ -811,6 +844,14 @@ public boolean connectSlaves(StaplerRequest req, StaplerResponse rsp) {
         return result;
     }
 
+    /**
+     * Checks if Lenient Shutdown Plugin is installed.
+     * @return true if the plugin is installed, otherwise false
+     */
+    public static boolean isLenientShutdownPluginInstalled() {
+        return Jenkins.getInstance().getPlugin("lenientshutdown") != null;
+    }
+
     /**
      * Disconnects from selected slaves.
      * @param reason the reason for disconnecting

src/main/resources/com/sonyericsson/hudson/plugins/multislaveconfigplugin/NodeManageLink/manageoptions.jelly

@@ -1,7 +1,7 @@
 <!--
  *  The MIT License
  *
- *  Copyright 2014 Sony Mobile Communications AB. All rights reserved.
+ *  Copyright 2014 Sony Mobile Communications Inc. All rights reserved.
  *
  *  Permission is hereby granted, free of charge, to any person obtaining a copy
  *  of this software and associated documentation files (the "Software"), to deal
@@ -39,39 +39,48 @@
 
         </l:header>
 
-
-
-
         <l:main-panel>
             <h3>${it.displayName} - ${%Manage slaves}</h3>
-            ${%In this section you can manage the slaves chosen in the previous page.}
+            ${%ManageInfo}
                 <table class="sortable pane bigtable">
                     <tr align="left"> </tr>
                     <tr align="left">
                         <th class="table-cell">
-                            <p>${%Bring the selected slaves online by pressing the button.}</p>
+                            <p>${%OnlineButtonInfo}</p>
                             <input id="takeOnline" value="${%Bring slaves online}" class="yui-button"/>
                             <p id="onlineResponse"><st:nbsp/></p>
                         </th>
                         <th class="table-cell">
-                            <p>${%Take the selected slaves temporarily offline by pressing the button.}</p>
-                            <p>${%A reason can be typed into the box.}</p>
-                            <p>${%If a node is already offline, this will only change the offline reason.}</p>
+                            <j:choose>
+                                <j:when test="${it.lenientShutdownPluginInstalled}">
+                                    <p>${%TempOfflineTwoButtonsInfo}</p>
+                                    <p>${%LenientShutdownUsage}</p>
+                                    <input id="takeOfflineLeniently" value="${%Take slaves offline leniently}" class="yui-button"/>
+                                    <br/><br/>
+                                </j:when>
+                                <j:otherwise>
+                                    <p>${%TempOfflineOneButtonInfo}</p>
+                                </j:otherwise>
+                            </j:choose>
+
+                            <p>${%OfflineReason}</p>
+                            <p>${%OfflineReasonChange}</p>
                             <input style="width: 100%;" type="text" placeholder="Reason" name="offlineReason" id="offlineReason"/>
                             <br/>
                             <input id="takeOffline" value="${%Take slaves offline}" class="yui-button"/>
+
                             <p id="offlineResponse"><st:nbsp/></p>
                         </th>
                     </tr>
                     <tr align="left">
                         <th class="table-cell">
-                            <p>${%Connect to the selected slaves by pressing the button.}</p>
+                            <p>${%ConnectButtonInfo}</p>
                             <input id="connectSlaves" value="${%Connect to slaves}" class="yui-button"/>
                             <p id="connectResponse"><st:nbsp/></p>
                         </th>
                         <th class="table-cell">
-                            <p>${%Disconnect from selected slaves by pressing the button.}</p>
-                            <p>${%A reason can by typed into the box.}</p>
+                            <p>${%DisconnectButtonInfo}</p>
+                            <p>${%DisconnectReason}</p>
                             <input style="width: 100%;" type="text" placeholder="Reason" name="disconnectReason" id="disconnectReason"/>
                             <br/>
                             <input id="disconnectSlaves" value="${%Disconnect from slaves}" class="yui-button"/>
@@ -88,35 +97,40 @@
 
                     var nodeManageLink = <st:bind value="${it}"/>
 
-                    makeButton(document.getElementById('takeOnline'), takeOnline);
-                    function takeOnline() {
+                    makeButton(document.getElementById('takeOnline'), function() {
                         nodeManageLink.takeOnline(function(result) {
                             displayResult('onlineResponse', result);
                         });
-                    }
+                    });
 
-                    makeButton(document.getElementById('takeOffline'), takeOffline);
-                    function takeOffline() {
+                    makeButton(document.getElementById('takeOffline'), function() {
                         var reason = document.getElementById('offlineReason').value;
                         nodeManageLink.takeOffline(reason, function(result) {
                             displayResult('offlineResponse', result);
                         });
+                    });
+
+                    var lenientOfflineButton = document.getElementById('takeOfflineLeniently');
+                    if (lenientOfflineButton != null) {
+                        makeButton(lenientOfflineButton, function() {
+                            nodeManageLink.takeOfflineLeniently(function(result) {
+                                displayResult('offlineResponse', result);
+                            });
+                        });
                     }
 
-                    makeButton(document.getElementById('connectSlaves'), connectSlaves);
-                    function connectSlaves() {
+                    makeButton(document.getElementById('connectSlaves'), function() {
                         nodeManageLink.connectSlaves(function(result) {
                             displayResult('connectResponse', result);
                         });
-                    }
+                    });
 
-                    makeButton(document.getElementById('disconnectSlaves'), disconnectSlaves);
-                    function disconnectSlaves() {
+                    makeButton(document.getElementById('disconnectSlaves'), function() {
                         var reason = document.getElementById('disconnectReason').value;
                         nodeManageLink.disconnectSlaves(reason, function(result) {
                             displayResult('disconnectResponse', result);
                         });
-                    }
+                    });
 
                     /**
                     * A text response to the user pressing the button saying

src/main/resources/com/sonyericsson/hudson/plugins/multislaveconfigplugin/NodeManageLink/manageoptions.properties

@@ -0,0 +1,30 @@
+ManageInfo=\
+  In this section you can manage the slaves chosen in the previous page.
+
+OnlineButtonInfo=\
+  Bring the selected slaves online by pressing the button.
+
+TempOfflineTwoButtonsInfo=\
+  Take the selected slaves temporarily offline by pressing one of the two buttons below.
+
+TempOfflineOneButtonInfo=\
+  Take the selected slaves temporarily offline by pressing the button.
+
+LenientShutdownUsage=\
+  The button for taking offline leniently makes use of Lenient Shutdown Plugin.
+
+OfflineReason=\
+  A reason can be typed into the box when taking offline.
+
+OfflineReasonChange=\
+  If a node is already offline, this will only change the offline reason.
+
+ConnectButtonInfo=\
+  Connect to the selected slaves by pressing the button.
+
+DisconnectButtonInfo=\
+  Disconnect from selected slaves by pressing the button.
+
+DisconnectReason=\
+  A reason can by typed into the box.
+