Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.apache.cxf.management.web.browser.client.service; import javax.annotation.Nonnull; import com.google.gwt.http.client.Request; import com.google.gwt.http.client.RequestCallback; import com.google.gwt.http.client.Response; //TODO Remove - this class is useless public abstract class AbstractCallback<T> implements RequestCallback { private static final int OK = 200; public void onResponseReceived(@Nonnull final Request request, @Nonnull final Response response) { if (OK == response.getStatusCode()) { onSuccess(parse(response)); } else { // TODO add custom exception onError(request, new RuntimeException("Undefined remote service error")); } } public void onError(final Request request, final Throwable ex) { // TODO add custom exception throw new RuntimeException(ex); } public abstract void onSuccess(T obj); protected abstract T parse(Response response); }