Java tutorial
/** * Copyright Maxpower Inc Finland (2014) * * This file is part of RedditEngine. * * RedditEngine 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. * * RedditEngine 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 RedditEngine. If not, see <http://www.gnu.org/licenses/>. **/ package net.fizzl.redditengine.data; import java.io.IOException; import java.io.InputStream; import java.io.StringWriter; import net.fizzl.redditengine.data.type.EditedType; import org.apache.commons.io.IOUtils; import com.google.gson.Gson; import com.google.gson.GsonBuilder; /** * This class is a Listing wrapper that contains subreddits. An instance of this class can be created from an InputStream. * @see SubredditData * @see java.io.InputStream */ public class SubredditListing extends Listing<SubredditListingData> { /** * Returns a {@link #SubredditListing} from an InputStream * * @param is InputStream containing a subreddit listing as JSON * @return SubredditListing * @throws IOException */ public static SubredditListing fromInputStream(InputStream is) throws IOException { StringWriter writer = new StringWriter(); IOUtils.copy(is, writer, "UTF-8"); return fromString(writer.toString()); } /** * Returns a {@link #SubredditListing} from a JSON string * * @param str a subreddit listing as JSON * @return SubredditListing */ public static SubredditListing fromString(String str) { GsonBuilder builder = new GsonBuilder(); builder.registerTypeAdapter(EditedType.class, new EditedType.TypeAdapter()); Gson gson = builder.create(); SubredditListing ret = gson.fromJson(str, SubredditListing.class); return ret; } }