Java tutorial
/* * Twidere - Twitter client for Android * * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.mariotaku.twidere.util; import android.content.Context; import android.net.Uri; import android.support.annotation.NonNull; import android.support.v4.util.LongSparseArray; import android.util.Log; import org.mariotaku.twidere.Constants; import org.mariotaku.twidere.model.ListResponse; import org.mariotaku.twidere.model.ParcelableUser; import org.mariotaku.twidere.model.SingleResponse; import org.mariotaku.twidere.provider.TwidereDataStore.Notifications; import org.mariotaku.twidere.provider.TwidereDataStore.UnreadCounts; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.util.List; import java.util.Set; import twitter4j.DirectMessage; import twitter4j.Paging; import twitter4j.ResponseList; import twitter4j.Status; import twitter4j.Twitter; import twitter4j.TwitterException; import twitter4j.User; import static org.mariotaku.twidere.util.Utils.getTwitterInstance; public class TwitterWrapper implements Constants { public static int clearNotification(final Context context, final int notificationType, final long accountId) { final Uri.Builder builder = Notifications.CONTENT_URI.buildUpon(); builder.appendPath(String.valueOf(notificationType)); if (accountId > 0) { builder.appendPath(String.valueOf(accountId)); } return context.getContentResolver().delete(builder.build(), null, null); } public static int clearUnreadCount(final Context context, final int position) { if (context == null || position < 0) return 0; final Uri uri = UnreadCounts.CONTENT_URI.buildUpon().appendPath(String.valueOf(position)).build(); return context.getContentResolver().delete(uri, null, null); } public static SingleResponse<Boolean> deleteProfileBannerImage(final Context context, final long account_id) { final Twitter twitter = getTwitterInstance(context, account_id, false); if (twitter == null) return new SingleResponse<>(false, null); try { twitter.removeProfileBannerImage(); return new SingleResponse<>(true, null); } catch (final TwitterException e) { return new SingleResponse<>(false, e); } } public static int removeUnreadCounts(final Context context, final int position, final long account_id, final long... status_ids) { if (context == null || position < 0 || status_ids == null || status_ids.length == 0) return 0; int result = 0; final Uri.Builder builder = UnreadCounts.CONTENT_URI.buildUpon(); builder.appendPath(String.valueOf(position)); builder.appendPath(String.valueOf(account_id)); builder.appendPath(TwidereArrayUtils.toString(status_ids, ',', false)); result += context.getContentResolver().delete(builder.build(), null, null); return result; } public static int removeUnreadCounts(final Context context, final int position, final LongSparseArray<Set<Long>> counts) { if (context == null || position < 0 || counts == null) return 0; int result = 0; for (int i = 0, j = counts.size(); i < j; i++) { final long key = counts.keyAt(i); final Set<Long> value = counts.valueAt(i); final Uri.Builder builder = UnreadCounts.CONTENT_URI.buildUpon(); builder.appendPath(String.valueOf(position)); builder.appendPath(String.valueOf(key)); builder.appendPath(CollectionUtils.toString(value, ',', false)); result += context.getContentResolver().delete(builder.build(), null, null); } return result; } @NonNull public static User showUser(final Twitter twitter, final long id, final String screenName) throws TwitterException { if (twitter.getId() == id || twitter.getScreenName().equalsIgnoreCase(screenName)) { return twitter.verifyCredentials(); } else if (id != -1) { return twitter.showUser(id); } else if (screenName != null) { return twitter.showUser(screenName); } throw new IllegalArgumentException(); } @NonNull public static User showUserAlternative(final Twitter twitter, final long id, final String screenName) throws TwitterException { final String searchScreenName; if (screenName != null) { searchScreenName = screenName; } else if (id != -1) { searchScreenName = twitter.showFriendship(twitter.getId(), id).getTargetUserScreenName(); } else throw new IllegalArgumentException(); final Paging paging = new Paging(); paging.count(1); if (id != -1) { final ResponseList<Status> timeline = twitter.getUserTimeline(id, paging); for (final Status status : timeline) { final User user = status.getUser(); if (user.getId() == id) return user; } } else { final ResponseList<Status> timeline = twitter.getUserTimeline(screenName, paging); for (final Status status : timeline) { final User user = status.getUser(); if (searchScreenName.equalsIgnoreCase(user.getScreenName())) return user; } } for (final User user : twitter.searchUsers(searchScreenName, 1)) { if (user.getId() == id || searchScreenName.equalsIgnoreCase(user.getScreenName())) return user; } throw new TwitterException("can't find user"); } @NonNull public static User tryShowUser(final Twitter twitter, final long id, final String screenName) throws TwitterException { try { return showUser(twitter, id, screenName); } catch (final TwitterException e) { if (e.getCause() instanceof IOException) throw e; } return showUserAlternative(twitter, id, screenName); } public static SingleResponse<ParcelableUser> updateProfile(final Context context, final long account_id, final String name, final String url, final String location, final String description) { final Twitter twitter = getTwitterInstance(context, account_id, false); if (twitter != null) { try { final User user = twitter.updateProfile(name, url, location, description); return new SingleResponse<>(new ParcelableUser(user, account_id), null); } catch (final TwitterException e) { return new SingleResponse<>(null, e); } } return SingleResponse.getInstance(); } public static void updateProfileBannerImage(final Context context, final long accountId, final Uri imageUri, final boolean deleteImage) throws FileNotFoundException, TwitterException { final Twitter twitter = getTwitterInstance(context, accountId, false); updateProfileBannerImage(context, twitter, imageUri, deleteImage); } public static void updateProfileBannerImage(final Context context, final Twitter twitter, final Uri imageUri, final boolean deleteImage) throws FileNotFoundException, TwitterException { InputStream is; try { is = context.getContentResolver().openInputStream(imageUri); twitter.updateProfileBannerImage(is); } finally { if (deleteImage && "file".equals(imageUri.getScheme())) { final File file = new File(imageUri.getPath()); if (!file.delete()) { Log.w(LOGTAG, String.format("Unable to delete %s", file)); } } } } public static User updateProfileImage(final Context context, final Twitter twitter, final Uri imageUri, final boolean deleteImage) throws FileNotFoundException, TwitterException { InputStream is; try { is = context.getContentResolver().openInputStream(imageUri); return twitter.updateProfileImage(is); } finally { if (deleteImage && "file".equals(imageUri.getScheme())) { final File file = new File(imageUri.getPath()); if (!file.delete()) { Log.w(LOGTAG, String.format("Unable to delete %s", file)); } } } } public static User updateProfileImage(final Context context, final long accountId, final Uri imageUri, final boolean deleteImage) throws FileNotFoundException, TwitterException { final Twitter twitter = getTwitterInstance(context, accountId, true); return updateProfileImage(context, twitter, imageUri, deleteImage); } public static final class MessageListResponse extends TwitterListResponse<DirectMessage> { public final boolean truncated; public MessageListResponse(final long accountId, final Exception exception) { this(accountId, -1, -1, null, false, exception); } public MessageListResponse(final long accountId, final List<DirectMessage> list) { this(accountId, -1, -1, list, false, null); } public MessageListResponse(final long accountId, final long maxId, final long sinceId, final List<DirectMessage> list, final boolean truncated) { this(accountId, maxId, sinceId, list, truncated, null); } MessageListResponse(final long accountId, final long maxId, final long sinceId, final List<DirectMessage> list, final boolean truncated, final Exception exception) { super(accountId, maxId, sinceId, list, exception); this.truncated = truncated; } } public static final class StatusListResponse extends TwitterListResponse<Status> { public final boolean truncated; public StatusListResponse(final long accountId, final Exception exception) { this(accountId, -1, -1, null, false, exception); } public StatusListResponse(final long accountId, final List<Status> list) { this(accountId, -1, -1, list, false, null); } public StatusListResponse(final long accountId, final long maxId, final long sinceId, final List<Status> list, final boolean truncated) { this(accountId, maxId, sinceId, list, truncated, null); } StatusListResponse(final long accountId, final long maxId, final long sinceId, final List<Status> list, final boolean truncated, final Exception exception) { super(accountId, maxId, sinceId, list, exception); this.truncated = truncated; } } public static class TwitterListResponse<Data> extends ListResponse<Data> { public final long accountId, maxId, sinceId; public TwitterListResponse(final long accountId, final Exception exception) { this(accountId, -1, -1, null, exception); } public TwitterListResponse(final long accountId, final long maxId, final long sinceId, final List<Data> list) { this(accountId, maxId, sinceId, list, null); } TwitterListResponse(final long accountId, final long maxId, final long sinceId, final List<Data> list, final Exception exception) { super(list, exception); this.accountId = accountId; this.maxId = maxId; this.sinceId = sinceId; } } }