Java tutorial
/* * This file is part of Nailed, licensed under the MIT License (MIT). * * Copyright (c) The Nailed Team <http://nailed.jk-5.nl> * Copyright (c) contributors * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package nl.jk_5.nailed.plugin.nmm; import com.google.common.util.concurrent.SettableFuture; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.spongepowered.api.util.annotation.NonnullByDefault; import nl.jk_5.nailed.api.mappack.Mappack; import java.io.File; import java.nio.channels.Channels; import java.nio.channels.FileChannel; import java.nio.channels.ReadableByteChannel; import java.nio.file.StandardOpenOption; @NonnullByDefault public class NmmMappack implements Mappack { private final String path; private final Logger logger; private File dir; //private MappackMetadata metadata; public NmmMappack(String path, NmmPlugin plugin) { this.path = path; this.logger = plugin.getLogger(); } @Override public String getName() { return this.path; } @Override public void prepareWorld(File destination, SettableFuture<Void> future) { HttpClient httpClient = HttpClientBuilder.create().build(); try { String mappack = this.path.split("/", 2)[1]; HttpGet request = new HttpGet("http://nmm.jk-5.nl/" + this.path + "/versions.json"); HttpResponse response = httpClient.execute(request); MappackInfo list = NmmPlugin.gson.fromJson(EntityUtils.toString(response.getEntity(), "UTF-8"), MappackInfo.class); HttpGet request2 = new HttpGet( "http://nmm.jk-5.nl/" + this.path + "/" + mappack + "-" + list.latest + ".zip"); HttpEntity response2 = httpClient.execute(request2).getEntity(); if (response2 != null) { File mappackZip = new File(destination, "mappack.zip"); try (ReadableByteChannel source = Channels.newChannel(response2.getContent()); FileChannel out = FileChannel.open(mappackZip.toPath(), StandardOpenOption.CREATE_NEW, StandardOpenOption.WRITE)) { out.transferFrom(source, 0, Long.MAX_VALUE); } ZipUtils.extract(mappackZip, destination); mappackZip.delete(); this.dir = destination; File dataDir = new File(destination, ".data"); dataDir.mkdir(); File metadataLocation = new File(dataDir, "game.xml"); new File(destination, "game.xml").renameTo(metadataLocation); new File(destination, "scripts").renameTo(new File(dataDir, "scripts")); File worldsDir = new File(destination, "worlds"); for (File f : worldsDir.listFiles()) { f.renameTo(new File(destination, f.getName())); } worldsDir.delete(); //metadata = XmlMappackMetadata.fromFile(metadataLocation); future.set(null); } else { future.setException(new RuntimeException( "Got an empty response while downloading mappack " + this.path + " from nmm.jk-5.nl")); } } catch (Exception e) { future.setException( new RuntimeException("Was not able to download mappack " + this.path + " from nmm.jk-5.nl", e)); } } /*@Nonnull @Override public MappackMetadata getMetadata() { return metadata; } @Nullable @Override public IMount getMappackMount() { return new DirectoryMount(new File(new File(dir, ".data"), "scripts")); }*/ }