com.alta189.deskbin.services.image.TwitterService.java Source code

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Here is the source code for com.alta189.deskbin.services.image.TwitterService.java

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/*
 * This file is part of DeskBin.
 *
 * Copyright (c) 2012, alta189 <http://github.com/alta189/DeskBin/>
 * DeskBin is licensed under the GNU Lesser General Public License.
 *
 * DeskBin 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.
 *
 * DeskBin 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, see <http://www.gnu.org/licenses/>.
 */
package com.alta189.deskbin.services.image;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.InputStream;
import java.util.Collection;
import java.util.List;
import javax.imageio.ImageIO;

import com.alta189.deskbin.services.ServiceSnapshot;
import com.alta189.deskbin.util.KeyStore;
import com.alta189.deskbin.util.KeyUtils;
import org.apache.commons.io.IOUtils;
import twitter4j.Twitter;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.media.ImageUpload;
import twitter4j.media.ImageUploadFactory;
import twitter4j.media.MediaProvider;

public class TwitterService extends ImageService {
    public static final String NAME = "Twitter";
    public static final String FILENAME = "capture.png";
    private final Twitter twitterService;
    private MediaProvider imageService;

    public TwitterService() {
        this(MediaProvider.TWITTER);
    }

    public TwitterService(MediaProvider provider) {
        twitterService = new TwitterFactory().getInstance();
        twitterService.setOAuthConsumer(KeyUtils.getKey("twitter-consumerkey"),
                KeyUtils.getKey("twitter-consumersec"));
        AccessToken token = KeyStore.get("twitter-oauth");
        twitterService.setOAuthAccessToken(token);
    }

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public String upload(BufferedImage image) throws ImageServiceException {
        try {
            ImageUpload upload = new ImageUploadFactory().getInstance(imageService,
                    twitterService.getAuthorization());
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ImageIO.write(image, "png", baos);
            InputStream input = IOUtils.toInputStream(IOUtils.toString(baos.toByteArray(), "UTF-8"), "UTF-8");
            return upload.upload(FILENAME, input);
        } catch (Exception e) {
            throw new ImageServiceException(e);
        }
    }

    @Override
    public String upload(List<BufferedImage> images) throws ImageServiceException {
        StringBuilder urls = new StringBuilder();
        for (BufferedImage i : images)
            urls.append(upload(i)).append(" ");
        return urls.substring(0, urls.length() - 1);
    }

    @Override
    public ServiceSnapshot generateSnapshot() {
        return new ServiceSnapshot(getClass());
    }

    @Override
    public String upload(File image) throws ImageServiceException {
        try {
            ImageUpload upload = new ImageUploadFactory().getInstance(imageService,
                    twitterService.getAuthorization());
            return upload.upload(image);
        } catch (Exception e) {
            throw new ImageServiceException(e);
        }
    }

    @Override
    public String upload(Collection<File> images) throws ImageServiceException {
        StringBuilder urls = new StringBuilder();
        for (File i : images) {
            urls.append(upload(i)).append(" ");
        }
        return urls.substring(0, urls.length() - 1);
    }
}