Java tutorial
/* * Sonar Twitter Plugin * Copyright (C) 2010 SonarSource * dev@sonar.codehaus.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 */ package org.sonar.plugins.twitter; import static org.sonar.plugins.twitter.TwitterPlugin.HOST_DEFAULT_VALUE; import static org.sonar.plugins.twitter.TwitterPlugin.HOST_PROPERTY; import static org.sonar.plugins.twitter.TwitterPlugin.PASSWORD_PROPERTY; import static org.sonar.plugins.twitter.TwitterPlugin.TWITTER_TOKEN; import static org.sonar.plugins.twitter.TwitterPlugin.TWITTER_TOKEN_ID; import static org.sonar.plugins.twitter.TwitterPlugin.TWITTER_TOKEN_SECRET; import static org.sonar.plugins.twitter.TwitterPlugin.USERNAME_PROPERTY; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import org.apache.commons.configuration.Configuration; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.sonar.api.batch.PostJob; import org.sonar.api.batch.SensorContext; import org.sonar.api.resources.Project; import twitter4j.Status; import twitter4j.Twitter; import twitter4j.TwitterException; import twitter4j.TwitterFactory; import twitter4j.http.AccessToken; import twitter4j.http.RequestToken; /** * @author Evgeny Mandrikov * @author Akram Ben Aissi */ public class TwitterPublisher implements PostJob { private static final String PROJECT_INDEX_URI = "/project/index/"; private final static Logger LOG = LoggerFactory.getLogger(TwitterPublisher.class); private final static TwitterFactory FACTORY = new TwitterFactory(); private final Twitter twitter = FACTORY.getInstance(); public final void executeOn(Project project, SensorContext context) { Configuration configuration = project.getConfiguration(); String hostUrl = configuration.getString(HOST_PROPERTY, HOST_DEFAULT_VALUE); try { AccessToken accessToken = loadAccessToken(configuration); if (accessToken.getToken() == null || accessToken.getTokenSecret() == null) { authenticate(configuration); accessToken = loadAccessToken(configuration); } StringBuilder url = new StringBuilder(hostUrl).append(PROJECT_INDEX_URI).append(project.getKey()); String status = String.format("Sonar analysis of %s is available at %s", project.getName(), url); updateStatus(status); } catch (TwitterException e) { LOG.error("Exception updating Twitter status: " + e.getMessage()); } catch (IOException e) { LOG.error("Exception updating Twitter status: " + e.getMessage()); } } protected void updateStatus(String message) throws TwitterException { LOG.info("Updating Twitter status to: '{}'", message); Status status = twitter.updateStatus(message); LOG.info("Successfully updated the status to [" + status.getText() + "]."); } private void authenticate(Configuration configuration) throws TwitterException, IOException { String key = configuration.getString(USERNAME_PROPERTY); String secret = configuration.getString(PASSWORD_PROPERTY); twitter.setOAuthConsumer(key, secret); RequestToken requestToken = twitter.getOAuthRequestToken(); AccessToken accessToken = null; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); while (null == accessToken) { LOG.info("Open the following URL and grant access to your account:"); LOG.info(requestToken.getAuthorizationURL()); LOG.info("Enter the PIN(if aviailable) or just hit enter.[PIN]:"); String pin = br.readLine(); try { if (pin.length() > 0) { accessToken = twitter.getOAuthAccessToken(requestToken, pin); } else { accessToken = twitter.getOAuthAccessToken(); } } catch (TwitterException te) { if (401 == te.getStatusCode()) { LOG.error("Unable to get the access token."); } else { LOG.error("Unexpected Twitter error: " + te.getMessage(), te); } } } int id = twitter.verifyCredentials().getId(); // persist to the accessToken for future reference. storeAccessToken(configuration, id, accessToken); // unset clear password on the configuration configuration.setProperty(USERNAME_PROPERTY, null); configuration.setProperty(PASSWORD_PROPERTY, null); } private void storeAccessToken(Configuration configuration, int id, AccessToken accessToken) { configuration.setProperty(TWITTER_TOKEN, accessToken.getToken()); configuration.setProperty(TWITTER_TOKEN_SECRET, accessToken.getTokenSecret()); configuration.setProperty(TWITTER_TOKEN_ID, id); } private AccessToken loadAccessToken(Configuration configuration) { String token = configuration.getString(TWITTER_TOKEN); String tokenSecret = configuration.getString(TWITTER_TOKEN_SECRET); return new AccessToken(token, tokenSecret); } }