Switch the Links updating webscript to be Java backed using the new service

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@30103 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/web/scripts/links/AbstractLinksWebScript.java

@@ -19,7 +19,9 @@
 package org.alfresco.repo.web.scripts.links;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 import org.alfresco.query.PagingRequest;
@@ -34,6 +36,7 @@ import org.alfresco.service.cmr.site.SiteInfo;
 import org.alfresco.service.cmr.site.SiteService;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.json.JSONTokener;
@@ -95,6 +98,42 @@ public abstract class AbstractLinksWebScript extends DeclarativeWebScript
        return null;
     }
     
+    protected List<String> getTags(JSONObject json) throws JSONException
+    {
+       List<String> tags = null;
+       if(json.has("tags"))
+       {
+          // Is it "tags":"" or "tags":[...] ?
+          if(json.get("tags") instanceof String)
+          {
+             // This is normally an empty string, skip
+             String tagsS = json.getString("tags");
+             if("".equals(tagsS))
+             {
+                // No tags were given
+                return null;
+             }
+             else
+             {
+                // Log, and treat as empty
+                // (We don't support "tags":"a,b,c" in these webscripts)
+                logger.warn("Unexpected tag data: " + tagsS);
+                return null;
+             }
+          }
+          else
+          {
+             tags = new ArrayList<String>();
+             JSONArray jsTags = json.getJSONArray("tags");
+             for(int i=0; i<jsTags.length(); i++)
+             {
+                tags.add( jsTags.getString(i) );
+             }
+          }
+       }
+       return tags;
+    }
+    
     /**
      * Builds up a listing Paging request, based on the arguments
      *  specified in the URL

source/java/org/alfresco/repo/web/scripts/links/LinkPut.java

@@ -0,0 +1,123 @@
+/*
+ * 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.links;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.alfresco.repo.security.permissions.AccessDeniedException;
+import org.alfresco.service.cmr.links.LinkInfo;
+import org.alfresco.service.cmr.site.SiteInfo;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.springframework.extensions.webscripts.Cache;
+import org.springframework.extensions.webscripts.Status;
+import org.springframework.extensions.webscripts.WebScriptException;
+import org.springframework.extensions.webscripts.WebScriptRequest;
+
+/**
+ * This class is the controller for the link fetching links.put webscript.
+ * 
+ * @author Nick Burch
+ * @since 4.0
+ */
+public class LinkPut extends AbstractLinksWebScript
+{
+   private static final String PARAM_MESSAGE = "message";
+   
+   @Override
+   protected Map<String, Object> executeImpl(SiteInfo site, String linkName,
+         WebScriptRequest req, JSONObject json, Status status, Cache cache) {
+      Map<String, Object> model = new HashMap<String, Object>();
+      
+      // Try to find the link
+      LinkInfo link = linksService.getLink(site.getShortName(), linkName);
+      if(link == null)
+      {
+         String message = "No link found with that name";
+         
+         status.setCode(Status.STATUS_NOT_FOUND);
+         status.setMessage(message);
+         model.put(PARAM_MESSAGE, message);
+         return model;
+      }
+      
+      
+      // Get the new link details from the JSON
+      try
+      {
+         // Update the main properties
+         link.setTitle(getOrNull(json, "title"));
+         link.setDescription(getOrNull(json, "description"));
+         link.setURL(getOrNull(json, "url"));
+         
+         // Handle internal / not internal
+         if(json.has("internal"))
+         {
+            link.setInternal(true);
+         }
+         else
+         {
+            link.setInternal(false);
+         }
+         
+         // Do the tags
+         link.getTags().clear();
+         List<String> tags = getTags(json);
+         if(tags != null && tags.size() > 0)
+         {
+            link.getTags().addAll(tags);
+         }
+      }
+      catch(JSONException je)
+      {
+         throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Invalid JSON: " + je.getMessage());
+      }
+      
+      
+      // Update the link
+      try
+      {
+         link = linksService.updateLink(link);
+      }
+      catch(AccessDeniedException e)
+      {
+         String message = "You don't have permission to update that link";
+         
+         status.setCode(Status.STATUS_FORBIDDEN);
+         status.setMessage(message);
+         model.put(PARAM_MESSAGE, message);
+         return model;
+      }
+      
+      // Generate an activity for the change
+      addActivityEntry("updated", link, site, req, json);
+
+      
+      // Build the model
+      model.put(PARAM_MESSAGE, "Node " + link.getNodeRef() + " updated");
+      model.put("link", link);
+      model.put("site", site);
+      model.put("siteId", site.getShortName());
+      
+      // All done
+      return model;
+   }
+}