Building Killer Applications with Flash - Demo 3 of 3: A Polished App

06292011KillerApps3.as

package Axeda.Controller.Services

{
import RiaBus.Controller.Core.ApplicationManager;
import com.adobe.utils.StringUtil;
import mx.rpc.AsyncToken;
import mx.rpc.http.HTTPService;

public class RestService {
    private var _url
    :String;

    public function RestService(url:String="") {
        _url = url;
        if (!StringUtil.endsWith(_url, "/")) _url += "/";
    }

    public function Execute(operation:String,
                            parameters:Object=null,
                            method:String=HttpMethod.GET,
                            result:String=HttpResult.OBJECT,
                            contentType:String=HttpContentType.FORM)

    :AsyncToken

    {
        var httpService:HTTPService = new HTTPService();
        httpService.method = method;
        httpService.resultFormat = result;
        httpService.showBusyCursor = true;
        if (parameters) {
            httpService.request = parameters;
            httpService.contentType = contentType;
        }
        httpService.url = getServiceUrl(operation);
        return httpService.send();
    }

    private function getServiceUrl(operation:String)

    :String

        {
            var fullUrl:String = _url + operation;
            var sessionId:String = ApplicationManager.Instance.context.getAttribute("SessionId");
            if (sessionId) fullUrl += ((fullUrl.indexOf('?') >= 0) ? "&" : "?") + "sessionid=" + sessionId;
            return fullUrl;
        }
    }
}