Java tutorial
/* * Copyright 2009 Prime Technology. * * 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 org.primefaces.examples.view; import java.util.List; import java.util.concurrent.Callable; import java.util.concurrent.TimeUnit; import org.primefaces.examples.service.TwitterAPIService; import org.primefaces.examples.service.TwitterService; import org.primefaces.json.JSONArray; import org.primefaces.json.JSONObject; import org.primefaces.push.PushContext; import org.primefaces.push.PushContextFactory; import twitter4j.Status; public class TwitterSearchView { private boolean active; private TwitterService twitterService = new TwitterAPIService(); public boolean isActive() { return active; } public void setActive(boolean active) { this.active = active; } public void start() { if (!active) { PushContext context = PushContextFactory.getDefault().getPushContext(); context.schedule("/twitter", new Callable<String>() { private String results; public String call() throws Exception { List<Status> tweets = twitterService.asyncSearch("I"); if (tweets != null) { JSONObject jSONObject = new JSONObject(); JSONArray jSONArray = new JSONArray(); for (Status t : tweets) { JSONObject j = new JSONObject(); j.put("from_user", t.getUser().getScreenName()); j.put("text", t.getText()); j.put("image", t.getUser().getMiniProfileImageURL()); jSONArray.put(j); } jSONObject.put("results", jSONArray); results = "{\"data\":" + jSONObject.toString() + "}"; } return results; } }, 10, TimeUnit.SECONDS); active = true; } } }