Java tutorial
/* * Copyright 2011 ArcBees Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.adamantium.company.gwtp.client.application.response; import com.adamantium.company.gwtp.client.place.NameTokens; import com.adamantium.company.gwtp.client.place.TokenParameters; import com.adamantium.company.gwtp.shared.dispatch.SendTextToServerAction; import com.adamantium.company.gwtp.shared.dispatch.SendTextToServerResult; import com.google.gwt.user.client.Cookies; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.web.bindery.event.shared.EventBus; import com.gwtplatform.dispatch.rpc.shared.DispatchAsync; import com.gwtplatform.mvp.client.HasUiHandlers; import com.gwtplatform.mvp.client.Presenter; import com.gwtplatform.mvp.client.View; import com.gwtplatform.mvp.client.annotations.NameToken; import com.gwtplatform.mvp.client.annotations.ProxyCodeSplit; import com.gwtplatform.mvp.client.proxy.PlaceManager; import com.gwtplatform.mvp.client.proxy.ProxyPlace; import com.gwtplatform.mvp.shared.proxy.PlaceRequest; import javax.inject.Inject; public class ResponsePresenter extends Presenter<ResponsePresenter.MyView, ResponsePresenter.MyProxy> implements ResponseUiHandlers { @ProxyCodeSplit @NameToken(NameTokens.response) public interface MyProxy extends ProxyPlace<ResponsePresenter> { } public interface MyView extends View, HasUiHandlers<ResponseUiHandlers> { void setServerResponse(String serverResponse); void setTextToServer(String textToServer); } private final DispatchAsync dispatcher; private final PlaceManager placeManager; private String textToServer; @Inject ResponsePresenter(EventBus eventBus, MyView view, MyProxy proxy, PlaceManager placeManager, DispatchAsync dispatcher) { super(eventBus, view, proxy, RevealType.Root); this.placeManager = placeManager; this.dispatcher = dispatcher; getView().setUiHandlers(this); } @Override public void prepareFromRequest(PlaceRequest request) { super.prepareFromRequest(request); textToServer = request.getParameter(TokenParameters.TEXT_TO_SERVER, null); } @Override public void onClose() { PlaceRequest homePlaceRequest = new PlaceRequest.Builder().nameToken(NameTokens.home).build(); placeManager.revealPlace(homePlaceRequest); } @Override protected void onReset() { super.onReset(); getView().setTextToServer(textToServer); getView().setServerResponse("Waiting for response..."); dispatcher.execute(new SendTextToServerAction(textToServer), new AsyncCallback<SendTextToServerResult>() { @Override public void onFailure(Throwable caught) { getView().setServerResponse("An error occured: " + caught.getMessage()); } @Override public void onSuccess(SendTextToServerResult result) { if (Cookies.getCookie("JSESSIONID") == null) { System.out.println("Set security cookie."); Cookies.setCookie("JSESSIONID", "JSESSIONID"); } getView().setServerResponse(result.getResponse()); } }); } }