Java tutorial
package com.geecko.QuickLyric.lyrics; import com.geecko.QuickLyric.annotations.Reflection; import com.geecko.QuickLyric.utils.Net; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.jsoup.HttpStatusException; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import org.jsoup.safety.Whitelist; import org.jsoup.select.Elements; import java.io.IOException; import java.net.URL; import java.net.URLEncoder; import java.text.Normalizer; import java.util.ArrayList; /** * This file is part of QuickLyric * Created by geecko * <p/> * QuickLyric 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. * <p/> * QuickLyric 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 QuickLyric. If not, see <http://www.gnu.org/licenses/>. */ public class Genius { @Reflection public static final String domain = "genius.com"; public static ArrayList<Lyrics> search(String query) { ArrayList<Lyrics> results = new ArrayList<>(); query = Normalizer.normalize(query, Normalizer.Form.NFD).replaceAll("\\p{InCombiningDiacriticalMarks}+", ""); JSONObject response = null; try { URL queryURL = new URL( String.format("http://api.genius.com/search?q=%s", URLEncoder.encode(query, "UTF-8"))); response = new JSONObject(Net.getUrlAsString(queryURL)); } catch (JSONException | IOException e) { e.printStackTrace(); } try { if (response == null || response.getJSONObject("meta").getInt("status") != 200) return results; JSONArray hits = response.getJSONObject("response").getJSONArray("hits"); int processed = 0; while (processed < hits.length()) { JSONObject song = hits.getJSONObject(processed).getJSONObject("result"); String artist = song.getJSONObject("primary_artist").getString("name"); String title = song.getString("title"); String url = "http://genius.com/songs/" + song.getInt("id"); Lyrics l = new Lyrics(Lyrics.SEARCH_ITEM); l.setArtist(artist); l.setTitle(title); l.setURL(url); l.setSource("Genius"); results.add(l); processed++; } } catch (JSONException e) { e.printStackTrace(); } return results; } @Reflection public static Lyrics fromMetaData(String originalArtist, String originalTitle) { String urlArtist = Normalizer.normalize(originalArtist, Normalizer.Form.NFD) .replaceAll("\\p{InCombiningDiacriticalMarks}+", ""); String urlTitle = Normalizer.normalize(originalTitle, Normalizer.Form.NFD) .replaceAll("\\p{InCombiningDiacriticalMarks}+", ""); urlArtist = urlArtist.replaceAll("[^a-zA-Z0-9\\s+]", "").replaceAll("&", "and").trim().replaceAll("[\\s+]", "-"); urlTitle = urlTitle.replaceAll("[^a-zA-Z0-9\\s+]", "").replaceAll("&", "and").trim().replaceAll("[\\s+]", "-"); String url = String.format("http://genius.com/%s-%s-lyrics", urlArtist, urlTitle); return fromURL(url, originalArtist, originalTitle); } public static Lyrics fromURL(String url, String artist, String title) { Document lyricsPage; String text; try { lyricsPage = Jsoup.connect(url).get(); Elements lyricsDiv = lyricsPage.select("div.lyrics"); if (lyricsDiv.isEmpty()) throw new StringIndexOutOfBoundsException(); else text = Jsoup.clean(lyricsDiv.html(), Whitelist.none().addTags("br")).trim(); } catch (HttpStatusException e) { return new Lyrics(Lyrics.NO_RESULT); } catch (IOException | StringIndexOutOfBoundsException e) { e.printStackTrace(); return new Lyrics(Lyrics.ERROR); } if (artist == null) { title = lyricsPage.getElementsByClass("text_title").get(0).text(); artist = lyricsPage.getElementsByClass("text_artist").get(0).text(); } Lyrics result = new Lyrics(Lyrics.POSITIVE_RESULT); if ("[Instrumental]".equals(text)) result = new Lyrics(Lyrics.NEGATIVE_RESULT); result.setArtist(artist); result.setTitle(title); result.setText(text); result.setURL(url); result.setSource("Genius"); return result; } }