ehealth.external.twitter.UpdateStatus.java Source code

Introduction

Here is the source code for ehealth.external.twitter.UpdateStatus.java

Source

/*
 * Copyright 2007 Yusuke Yamamoto
 *
 * 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 ehealth.external.twitter;

import java.awt.Desktop;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Properties;

import twitter4j.Status;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;

/**
 * Uses OAuth method to acquire access to your account.<br>
 * This also have an example that illustrates how to use OAuth method with Twitter4J.<br>
 *
 * @author getch
 */
public final class UpdateStatus {

    Twitter twitter = new TwitterFactory().getInstance();

    private void loginTwitter() {
        File file = new File("twitter4j.properties");
        Properties prop = new Properties();
        InputStream is = null;
        OutputStream os = null;
        try {
            if (file.exists()) {
                is = new FileInputStream(file);
                prop.load(is);

            }

            prop.setProperty("oauth.consumerKey", "2JaAM5RaAv56zT3HxI6fpp6Nq");
            prop.setProperty("oauth.consumerSecret", "SRzpW5f4vk4QYeFPtJR7whQvjmM75D1JuBHTP4blTPCWu77Acl");
            os = new FileOutputStream("twitter4j.properties");
            prop.store(os, "twitter4j.properties");
        } catch (IOException ioe) {
            ioe.printStackTrace();
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException ignore) {
                }
            }
            if (os != null) {
                try {
                    os.close();
                } catch (IOException ignore) {
                }
            }
        }
        try {

            try {
                // get request token.
                // this will throw IllegalStateException if access token is
                // already available
                RequestToken requestToken = twitter.getOAuthRequestToken();
                System.out.println("Got request token.");
                System.out.println("Request token: " + requestToken.getToken());
                System.out.println("Request token secret: " + requestToken.getTokenSecret());
                AccessToken accessToken = null;

                BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
                while (null == accessToken) {
                    System.out.println("Open the following URL and grant access to your account:");
                    System.out.println(requestToken.getAuthorizationURL());
                    try {
                        Desktop.getDesktop().browse(new URI(requestToken.getAuthorizationURL()));
                    } catch (UnsupportedOperationException ignore) {
                    } catch (IOException ignore) {
                    } catch (URISyntaxException e) {
                        throw new AssertionError(e);
                    }
                    System.out.print("Enter the PIN(if available) and hit enter after you granted access.[PIN]:");
                    String pin = br.readLine();
                    try {
                        if (pin.length() > 0) {
                            accessToken = twitter.getOAuthAccessToken(requestToken, pin);
                        } else {
                            accessToken = twitter.getOAuthAccessToken(requestToken);
                        }
                    } catch (TwitterException te) {
                        if (401 == te.getStatusCode()) {
                            System.out.println("Unable to get the access token.");
                        } else {
                            te.printStackTrace();
                        }
                    }
                }
                System.out.println("Got access token.");
                System.out.println("Access token: " + accessToken.getToken());
                System.out.println("Access token secret: " + accessToken.getTokenSecret());

                try {
                    prop.setProperty("oauth.accessToken", accessToken.getToken());
                    prop.setProperty("oauth.accessTokenSecret", accessToken.getTokenSecret());
                    os = new FileOutputStream(file);
                    prop.store(os, "twitter4j.properties");
                    os.close();
                } catch (IOException ioe) {
                    ioe.printStackTrace();
                    System.exit(-1);
                } finally {
                    if (os != null) {
                        try {
                            os.close();
                        } catch (IOException ignore) {
                        }
                    }
                }
            } catch (IllegalStateException ie) {
                // access token is already available, or consumer key/secret is
                // not set.
                if (!twitter.getAuthorization().isEnabled()) {
                    System.out.println("OAuth consumer key/secret is not set.");
                }
            }

        } catch (TwitterException te) {
            te.printStackTrace();
            System.out.println("Failed to get timeline: " + te.getMessage());
        } catch (IOException ioe) {
            ioe.printStackTrace();
            System.out.println("Failed to read the system input.");
        } catch (Exception e) {

        }
    }

    /**
     * Post tweets on Twitter
     *
     * @param tweet
     * 
     */
    public int postTwitterStatus(String tweet) {

        try {

            loginTwitter();

            Status status = twitter.updateStatus(tweet);
            System.out.println("Successfully updated the status to [" + status.getText() + "].");
            return 1;
        } catch (TwitterException te) {
            te.printStackTrace();
            System.out.println("Failed to get timeline: " + te.getMessage());
        } catch (Exception e) {

        }
        return 0;
    }

    public static void main(String[] args) {
        if (args.length < 1) {
            System.out.println("Usage: java twitter4j.examples.tweets.UpdateStatus [text]");
            System.exit(-1);
        }
        UpdateStatus obj = new UpdateStatus();
        obj.postTwitterStatus(args[0]);
    }

}