[SmartGWT] RestDataSource & Dynamic columns

[robert polidort]

Hi,

I've done a RestDataSource, however I'd like before fetching to see the content of XML Data sent by this DS in order to extract some metadata informations (name of columns etc ....).

 RestDataSource dataSource = new RestDataSource() {
		        	               @Override  
		        	               protected Object transformRequest(DSRequest dsRequest) {  
		        	                   return super.transformRequest(dsRequest);  
		        	               }  
		        	               @Override  
		        	               protected void transformResponse(DSResponse response, DSRequest request, Object data) {
		        	            	   //response.getData()[1].get
		        	                   super.transformResponse(response, request, data);  
		        	                   
		        	               	   //response.setStatus(DSResponse.STATUS_LOGIN_SUCCESS);
		        	               }  
		        	           };
	                dataSource.setDataFormat(DSDataFormat.XML);  
	                //dataSource.setDataProtocol(DSProtocol.POSTMESSAGE); 
	                
	                dataSource.setRecordXPath("//wky:column");  
	                dataSource.setDataURL("/helloworld/workeyapirestproxy?url=http://localhost:8080/workey-j2ee-api/View/1&login=test1&password=test");
	                
	                //System.out.println(dataSource.getFieldNames());

Do you know where I can see the content of the XML sent ? I've tried to access it inside transformResponse, but I'm a little lost on which object to use to see the XML content. Do you know it if it is possible ?

I manage to do :

 @Override  
    protected void transformResponse(DSResponse response, DSRequest request, Object data) {
 	   
    	super.transformResponse(response, request, data);  
    	//response.getData()[1].get
 	   String toto = XMLTools.selectString(data, "@name");
 	   //System.out.println("toto : " + toto);
 	   toto = "pouet : " + toto;
       
 	  DataSourceTextField phoneField = new DataSourceTextField("name", "Phone");  
      phoneField.setValueXPath("@name");
      System.out.println("getFields : "  + getFields());
      ArrayList<DataSourceField> list = new ArrayList<DataSourceField>();
      for (int i = 0 ; i < getFields().length ;i++) {
    	  list.add(getFields()[i]);
      }      
      list.add(phoneField);
      
      setFields(list.toArray(new DataSourceField[list.size()]));

In order to extract data from the data stuffs, however If I do that in order to dynamically add field to my component I've got the following error

Error :Fields cannot be added to a DataSource after the underlying component has been created

Regards,
Denis.