/* Copyright 2010 ESRI
* 
* All rights reserved under the copyright laws of the United States
* and applicable international laws, treaties, and conventions.
* 
* You may freely redistribute and use this sample code, with or
* without modification, provided you include the original copyright
* notice and use restrictions.
* 
* See the use restrictions.
* 
*/
package com.esri.arcgis.sample.layerattributes;

import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import javax.faces.model.SelectItem;
import com.esri.adf.web.ags.data.AGSMapFunctionality;
import com.esri.adf.web.ags.data.AGSMapResource;
import com.esri.adf.web.ags.data.AGSTocLayerContent;
import com.esri.adf.web.ags.util.AGSUtil;
import com.esri.adf.web.faces.event.TocEvent;
import com.esri.arcgisws.EsriSearchOrder;
import com.esri.arcgisws.EsriSpatialRelEnum;
import com.esri.arcgisws.QueryFilter;
import com.esri.arcgisws.RecordSet;
import com.esri.arcgisws.SpatialFilter;

/**
 * This class adds a 'Show Layer Attributes' toc context menu item and processes
 * the request when a user selected this menu item.
 */
public class ShowAGSLayerAttributes extends AGSTocLayerContent {
  private static final Logger logger = Logger.getLogger(ShowAGSLayerAttributes.class.getName());
  private static SelectItem showLayerAttributes = new SelectItem("showLayerAttributes", "Show Layer Attributes", "Show Layer Attributes");
  private List items = new ArrayList();
  private boolean showAttributes = false;

  /**
   * Initialize context menu item
   */
  public ShowAGSLayerAttributes() {
    items.addAll(super.getContextMenuItems());
    items.add(showLayerAttributes);
  }

  /**
   * Return context menu items
   */
  public List getContextMenuItems() {
    return items;
  }

  /**
   * Handle context menu event
   */
  public void handleContextMenuEvent(String string, TocEvent tocEvent) {
    try {
      if(string.equals("showLayerAttributes")) {
        logger.fine("Context menu executed");

        //get resource & map functionality
        AGSMapResource agssrc = (AGSMapResource) tocFunc.getResource();
        AGSMapFunctionality mfunc = (AGSMapFunctionality)tocFunc.getMapFunctionality();

        //create and populate spatial filter for executing query
        SpatialFilter filter = new SpatialFilter();
        filter.setFilterGeometry(mfunc.getCurrentAGSExtent());
        filter.setSpatialRel(EsriSpatialRelEnum.esriSpatialRelIntersects);
        filter.setGeometryFieldName("");
        filter.setWhereClause("");
        filter.setSpatialReferenceFieldName("");
        filter.setSpatialRelDescription("");
        filter.setSearchOrder(EsriSearchOrder.esriSearchOrderSpatial);

        //execute query & store serialized record set in web context
        RecordSet recordSet = agssrc.getMapServer().queryFeatureData(agssrc.getMapName(), layerDesc.getLayerID(), (QueryFilter)filter);
        String str = AGSUtil.serializeStub(recordSet);
        agssrc.getWebContext().setAttribute("myattr",str);
      }
      else
        super.handleContextMenuEvent(string, tocEvent);
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }
}