Java tutorial
package org.ow2.chameleon.fuchsia.push.base.hub.dto; /* * #%L * OW2 Chameleon - Fuchsia Base PUbSubHubbub Hub * %% * Copyright (C) 2009 - 2014 OW2 Chameleon * %% * 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. * #L% */ import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.ow2.chameleon.fuchsia.push.base.hub.exception.InvalidContentNotification; import javax.servlet.http.HttpServletRequest; import java.util.ArrayList; import java.util.List; import static org.ow2.chameleon.fuchsia.push.base.hub.HubConstants.*; /** * Created with IntelliJ IDEA. * User: jnascimento * Date: 26/09/13 * Time: 14:49 * To change this template use File | Settings | File Templates. */ public class SubscriptionConfirmationRequest { private final String mode; private final String topic; private final String challenge; private final String lease; public SubscriptionConfirmationRequest(String mode, String topic, String challenge, String lease) { this.mode = mode; this.topic = topic; this.challenge = challenge; this.lease = lease; } public static SubscriptionConfirmationRequest from(HttpServletRequest request) throws InvalidContentNotification { validateRequest(request); return new SubscriptionConfirmationRequest(request.getParameter(HUB_MODE), request.getParameter(HUB_TOPIC), request.getParameter(HUB_CHALLENGE), request.getParameter(HUB_LEASE_SECONDS)); } private static void validateRequest(HttpServletRequest request) throws InvalidContentNotification { if (request.getParameter(HUB_MODE) == null || request.getParameter(HUB_TOPIC) == null || request.getParameter(HUB_CHALLENGE) == null || request.getParameter(HUB_LEASE_SECONDS) == null) { throw new InvalidContentNotification("No enough information provided"); } } public List<NameValuePair> toRequestParameters() { List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair(HUB_MODE, getMode())); nvps.add(new BasicNameValuePair(HUB_TOPIC, getTopic())); nvps.add(new BasicNameValuePair(HUB_CHALLENGE, getChallenge())); nvps.add(new BasicNameValuePair(HUB_LEASE_SECONDS, getLease())); return nvps; } public String getMode() { return mode; } public String getTopic() { return topic; } public String getChallenge() { return challenge; } public String getLease() { return lease; } }