ALF-9156 Convert the Calendar delete event webscript to be Java backed

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@28853 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/web/scripts/calendar/AbstractCalendarWebScript.java

@@ -18,9 +18,11 @@
  */
 package org.alfresco.repo.web.scripts.calendar;
 
+import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 
+import org.alfresco.service.cmr.activities.ActivityService;
 import org.alfresco.service.cmr.calendar.CalendarService;
 import org.alfresco.service.cmr.repository.NodeService;
 import org.alfresco.service.cmr.site.SiteInfo;
@@ -28,6 +30,7 @@ import org.alfresco.service.cmr.site.SiteService;
 import org.springframework.extensions.webscripts.Cache;
 import org.springframework.extensions.webscripts.DeclarativeWebScript;
 import org.springframework.extensions.webscripts.Status;
+import org.springframework.extensions.webscripts.WebScriptException;
 import org.springframework.extensions.webscripts.WebScriptRequest;
 
 /**
@@ -36,9 +39,12 @@ import org.springframework.extensions.webscripts.WebScriptRequest;
  */
 public abstract class AbstractCalendarWebScript extends DeclarativeWebScript
 {
+    public static final String CALENDAR_SERVICE_ACTIVITY_APP_NAME = "calendar";
+   
     // Injected services
     protected NodeService nodeService;
     protected SiteService siteService;
+    protected ActivityService activityService;
     protected CalendarService calendarService;
     
     public void setNodeService(NodeService nodeService)
@@ -51,11 +57,44 @@ public abstract class AbstractCalendarWebScript extends DeclarativeWebScript
         this.siteService = siteService;
     }
     
+    public void setActivityService(ActivityService activityService)
+    {
+        this.activityService = activityService;
+    }
+    
     public void setCalendarService(CalendarService calendarService)
     {
         this.calendarService = calendarService;
     }
     
+    /**
+     * Gets the date from the String, trying the various formats
+     *  (New and Legacy) until one works...
+     */
+    protected Date extractDate(String date)
+    {
+       // Try as ISO8601
+       
+       // Try YYYY/MM/DD 
+       
+       // Try YYYY-MM-DD
+       
+       
+       
+       // TODO Implement
+       return null;
+    }
+    
+    /**
+     * Normally the Calendar webscripts return a 200 with JSON
+     *  containing the error message. Override this to switch to
+     *  using HTTP status codes instead
+     */
+    protected boolean useJSONErrors()
+    {
+       return true;
+    }
+    
     /**
      * Equivalent of <i>jsonError</i> in the old JavaScript controllers
      */
@@ -78,7 +117,15 @@ public abstract class AbstractCalendarWebScript extends DeclarativeWebScript
        Map<String, String> templateVars = req.getServiceMatch().getTemplateVars();
        if(templateVars == null)
        {
-          return buildError("No parameters supplied");
+          String error = "No parameters supplied";
+          if(useJSONErrors())
+          {
+             return buildError(error);
+          }
+          else
+          {
+             throw new WebScriptException(Status.STATUS_BAD_REQUEST, error);
+          }
        }
        
        // Get the site short name. Try quite hard to do so...
@@ -93,14 +140,30 @@ public abstract class AbstractCalendarWebScript extends DeclarativeWebScript
        }
        if(siteName == null)
        {
-          return buildError("No site given");
+          String error = "No site given";
+          if(useJSONErrors())
+          {
+             return buildError("No site given");
+          }
+          else
+          {
+             throw new WebScriptException(Status.STATUS_BAD_REQUEST, error);
+          }
        }
        
        // Grab the requested site
        SiteInfo site = siteService.getSite(siteName);
        if(site == null)
        {
-          return buildError("Could not find site: " + siteName);
+          String error = "Could not find site: " + siteName;
+          if(useJSONErrors())
+          {
+             return buildError(error);
+          }
+          else
+          {
+             throw new WebScriptException(Status.STATUS_NOT_FOUND, error);
+          }
        }
        
        // Event name is optional

source/java/org/alfresco/repo/web/scripts/calendar/CalendarEntryDelete.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2005-2011 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.alfresco.repo.web.scripts.calendar;
+
+import java.io.Serializable;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.alfresco.repo.calendar.CalendarModel;
+import org.alfresco.repo.calendar.CalendarServiceImpl;
+import org.alfresco.service.cmr.calendar.CalendarEntry;
+import org.alfresco.service.cmr.site.SiteInfo;
+import org.alfresco.service.namespace.QName;
+import org.alfresco.util.GUID;
+import org.alfresco.util.ISO8601DateFormat;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.json.JSONObject;
+import org.springframework.extensions.webscripts.Cache;
+import org.springframework.extensions.webscripts.Status;
+import org.springframework.extensions.webscripts.WebScriptRequest;
+
+/**
+ * This class is the controller for the slingshot calendar event.delete webscript.
+ * 
+ * @author Nick Burch
+ * @since 4.0
+ */
+public class CalendarEntryDelete extends AbstractCalendarWebScript
+{
+   private static Log logger = LogFactory.getLog(CalendarEntryDelete.class);
+   
+   /**
+    * This WebScript uses HTTP status codes for errors
+    */
+   @Override
+   protected boolean useJSONErrors() {
+      return false;
+   }
+
+   @Override
+   protected Map<String, Object> executeImpl(SiteInfo site, String eventName,
+         WebScriptRequest req, Status status, Cache cache) {
+      CalendarEntry entry = calendarService.getCalendarEntry(
+            site.getShortName(), eventName
+      );
+      
+      if(entry == null)
+      {
+         status.setCode(Status.STATUS_NOT_FOUND);
+         return null;
+      }
+      
+      // Special case for "deleting" an instance of a recurring event 
+      if(req.getParameter("date") != null && entry.getRecurrenceRule() != null)
+      {
+         // Get the date to be ignored
+         Map<QName,Serializable> props = new HashMap<QName, Serializable>();
+         Date date = extractDate(req.getParameter("date"));
+         props.put(CalendarModel.PROP_IGNORE_EVENT_DATE, date);
+         
+         // Create a child node of the event
+         nodeService.createNode(
+               entry.getNodeRef(), CalendarModel.ASSOC_IGNORE_EVENT_LIST,
+               QName.createQName(GUID.generate()), CalendarModel.TYPE_IGNORE_EVENT, props
+         );
+         
+         // Mark as ignored
+         status.setCode(Status.STATUS_NO_CONTENT, "Recurring entry ignored");
+         return null;
+      }
+      
+      // Delete the calendar entry
+      calendarService.deleteCalendarEntry(entry);
+      
+      // Record this in the activity feed
+      try
+      {
+         JSONObject json = new JSONObject();
+         json.put("siteid", site.getShortName());
+         json.put("eventname", entry.getSystemName());
+         json.put("date", ISO8601DateFormat.format(entry.getStart()));
+         
+         activityService.postActivity(
+               "org.alfresco.calendar.event-deleted",
+               site.getShortName(),
+               CALENDAR_SERVICE_ACTIVITY_APP_NAME,
+               json.toString()
+         );
+      }
+      catch(Exception e)
+      {
+         // Warn, but carry on
+         logger.warn("Error adding event deletion to activities feed", e);
+      }
+
+      // All done
+      status.setCode(Status.STATUS_NO_CONTENT, "Entry deleted");
+      return null;
+   }
+}