in the interests of a quick reply, this is for WFS identify all from a project i have on disk that is based on google maps & geoserver. you'll have to change the map mouse event to ESRI's & build your own display as well as the cleanup routine to remove the event handlers.when i get a chance i'll dig up a proper WMS getFeatures example.
// this snippet is set in the app init
// where:
// wfsURL==String var
// campusMapParams.geoserver == your WFS server
// qLayers==Array holding layer names you want to query
// srs==spatial reference that applies to the WFS server you want to query, for geoserver its EPSG references
wfsURL=campusMapParams.geoserver+"wfs?request=GetFeature&version=1.1.0&typeName="+qLayers.toString()+"&srs="+srs;
protected function doIdentifyAll(event:MapMouseEvent): void {
var getWFS:HTTPService=new HTTPService;
// we'll use a DWITHIN filter to grab any features that are within 25 meters or so
// NOTE DWITHIN units MUST match the point coords, ie degrees!!
var idPoint:String=String(event.latLng.lng())+","+String(event.latLng.lat());
// google's coords are all geographic so we'll stick w/EPSG:4326
getWFS.url=wfsURL+'&FILTER=<Filter xmlns="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml">' +
'<DWithin><PropertyName>the_geom</PropertyName>' +
'<gml:Point srsName="EPSG:4326"><gml:coordinates>'
+idPoint
+'</gml:coordinates></gml:Point><Distance units="deg">0.000050</Distance></DWithin></Filter>';
getWFS.method="GET";
getWFS.resultFormat="e4x";
getWFS.addEventListener("result", identifyAllFeaturesHandler);
getWFS.addEventListener("fault", httpServiceFault);
getWFS.useProxy=false;
try {
getWFS.send();
}
catch (error:Error) {
informUser("Fatal error: Unable to perform identify features on geoserver " + error,"WFS identify all","error");
}
}
protected function identifyAllFeaturesHandler(event:ResultEvent):void {
var results:XML=event.result as XML;
var features:XMLList=results.gml::featureMembers.children();
var gid:String="";
var featureAttributes:ArrayCollection=new ArrayCollection();
for (var i:int = 0; i < features.length(); i++) {
gid=features.@gml::id;
var thisFeature:Object=parseAttributes(features);
for (var x:String in thisFeature) {
featureAttributes.addItem({layer:gid,attribute:x,value:thisFeature});
}
}
if (featureAttributes.length==0)
informUser("No features found at that point","Identify");
else {
if (idResultWindow) // get rid of last one no matter what
PopUpManager.removePopUp(idResultWindow);
// clean slate
idResultWindow=IdentifyResultWindow(PopUpManager.createPopUp(this,IdentifyResultWindow,false));
idResultWindow.dataSource=featureAttributes;
}
}
protected function parseAttributes(xmlNode:XML):Object {
var nodes:XMLList = xmlNode.children();
var attributes:Object = {};
for(var i:int = 0; i < nodes.length(); i++) {
var name:String = nodes.localName();
var value:Object = nodes.valueOf();
if(name == null || name=="the_geom")
continue;
// Check for a leaf node
if((nodes.children().length() == 1)
&& !(nodes.children().children()[0] is XML))
attributes[name] = value.children()[0].toXMLString();
extend(attributes, this.parseAttributes(nodes));
}
return attributes;
}
