- More AJAX support (couple of bug fixes, added timing for AJAX calls, added support for adding AJAX scripts to a page once and once only)

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3352 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/ajax/BaseAjaxBean.java

@@ -1,51 +0,0 @@
-package org.alfresco.web.bean.ajax;
-
-import java.io.IOException;
-
-import javax.faces.context.FacesContext;
-import javax.faces.context.ResponseWriter;
-
-/**
- * Base class for all Ajax managed beans.
- * 
- * It is not necessary to extend this bean but it provides 
- * helper methods.
- * 
- * @author gavinc
- */
-public abstract class BaseAjaxBean
-{
-   private ResponseWriter writer;
-   
-   /**
-    * Writes the given string to the response writer for this bean
-    * 
-    * @param str The string to send back to the client
-    */
-   public void write(String str)
-   {
-      try
-      {
-         getWriter().write(str);
-      }
-      catch (IOException ioe)
-      {
-         // not much we can do here, ignore
-      }
-   }
-   
-   /**
-    * Returns the ResponseWriter for this bean
-    * 
-    * @return The JSF ResponseWriter
-    */
-   public ResponseWriter getWriter()
-   {
-      if (this.writer == null)
-      {
-         this.writer = FacesContext.getCurrentInstance().getResponseWriter();
-      }
-      
-      return this.writer;
-   }
-}

source/java/org/alfresco/web/bean/ajax/NodeInfoBean.java

@@ -0,0 +1,128 @@
+package org.alfresco.web.bean.ajax;
+
+import java.io.IOException;
+import java.util.Map;
+
+import javax.faces.context.FacesContext;
+import javax.faces.context.ResponseWriter;
+
+import org.alfresco.model.ContentModel;
+import org.alfresco.service.cmr.repository.ContentService;
+import org.alfresco.service.cmr.repository.NodeRef;
+import org.alfresco.service.cmr.repository.NodeService;
+import org.alfresco.web.bean.repository.Node;
+import org.alfresco.web.bean.repository.Repository;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * Bean used by an AJAX control to send information back on the 
+ * requested node.
+ * 
+ * @author gavinc
+ */
+public class NodeInfoBean
+{
+   private NodeService nodeService;
+   private ContentService contentService;
+   
+   private static final Log logger = LogFactory.getLog(NodeInfoBean.class);
+   
+   /**
+    * Returns information on the node identified by the 'noderef'
+    * parameter found in the ExternalContext.
+    * <p>
+    * The result is the formatted HTML to show on the client.
+    */
+   public void sendNodeInfo() throws IOException
+   {
+      FacesContext context = FacesContext.getCurrentInstance();
+      ResponseWriter out = context.getResponseWriter();
+      
+      String nodeRef = (String)context.getExternalContext().getRequestParameterMap().get("noderef");
+      
+      if (nodeRef == null || nodeRef.length() == 0)
+      {
+         throw new IllegalArgumentException("'noderef' parameter is missing");
+      }
+      
+      NodeRef repoNode = new NodeRef(nodeRef);
+      
+      if (this.nodeService.exists(repoNode))
+      {
+         // get the client side node representation and its properties
+         Node clientNode = new Node(repoNode);
+         Map props = clientNode.getProperties();
+         
+         // get the content size
+         Object content = props.get(ContentModel.PROP_CONTENT);
+         
+         // start the containing table
+         out.write("<table cellpadding='3' cellspacing='0'>");
+         
+         // write out information about the node as table rows
+         out.write("<tr><td colspan='2' class='mainSubTitle'>Summary</td></tr>");
+         
+         // add debug information to the summary if debug is enabled
+         if (logger.isDebugEnabled())
+         {
+            writeRow(out, "Id:", clientNode.getId());
+            writeRow(out, "Type:", clientNode.getType().toPrefixString());
+         }
+         
+         writeRow(out, "Description:", (String)props.get(ContentModel.PROP_DESCRIPTION));
+         writeRow(out, "Title:", (String)props.get(ContentModel.PROP_TITLE));
+         writeRow(out, "Created:", props.get("created").toString());
+         writeRow(out, "Modified:", props.get("modified").toString());
+         
+         // close the <table> and <div> tags
+         out.write("<table>");
+      }
+      else
+      {
+         out.write("<span class='errorMessage'>Node could not be found in the repository!</span>");
+      }
+   }
+
+   // ------------------------------------------------------------------------------
+   // Bean getters and setters
+   
+   /**
+    * @param nodeService The NodeService to set.
+    */
+   public void setNodeService(NodeService nodeService)
+   {
+      this.nodeService = nodeService;
+   }
+   
+   public void setContentService(ContentService contentService)
+   {
+      this.contentService = contentService;
+   }
+   
+   // ------------------------------------------------------------------------------
+   // Helper methods
+   
+   /**
+    * Writes a table row with the given data
+    * 
+    * @param nameColumn The name of the data item
+    * @param dataColumn The data
+    */
+   protected void writeRow(ResponseWriter out, String nameColumn, String dataColumn)
+      throws IOException
+   {
+      out.write("<tr><td>");
+      out.write(nameColumn);
+      out.write("</td><td>");
+      if (dataColumn != null)
+      {
+         out.write(dataColumn);
+      }
+      else
+      {
+         out.write("&nbsp;");
+      }
+      out.write("</td></tr>");
+   }
+}