Add SoundCloud service (#15)

Add SoundCloud service

services/soundcloud/SoundcloudService.java

@@ -0,0 +1,73 @@
+package org.schabi.newpipe.extractor.services.soundcloud;
+
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.SuggestionExtractor;
+import org.schabi.newpipe.extractor.UrlIdHandler;
+import org.schabi.newpipe.extractor.channel.ChannelExtractor;
+import org.schabi.newpipe.extractor.exceptions.ExtractionException;
+import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
+import org.schabi.newpipe.extractor.search.SearchEngine;
+import org.schabi.newpipe.extractor.stream.StreamExtractor;
+
+import java.io.IOException;
+
+public class SoundcloudService extends StreamingService {
+
+    public SoundcloudService(int id) {
+        super(id);
+    }
+
+    @Override
+    public ServiceInfo getServiceInfo() {
+        ServiceInfo serviceInfo = new ServiceInfo();
+        serviceInfo.name = "Soundcloud";
+        return serviceInfo;
+    }
+
+    @Override
+    public StreamExtractor getStreamExtractorInstance(String url)
+            throws ExtractionException, IOException {
+        UrlIdHandler urlIdHandler = SoundcloudStreamUrlIdHandler.getInstance();
+        if (urlIdHandler.acceptUrl(url)) {
+            return new SoundcloudStreamExtractor(urlIdHandler, url, getServiceId());
+        } else {
+            throw new IllegalArgumentException("supplied String is not a valid Soundcloud URL");
+        }
+    }
+
+    @Override
+    public SearchEngine getSearchEngineInstance() {
+        return new SoundcloudSearchEngine(getServiceId());
+    }
+
+    @Override
+    public UrlIdHandler getStreamUrlIdHandlerInstance() {
+        return SoundcloudStreamUrlIdHandler.getInstance();
+    }
+
+    @Override
+    public UrlIdHandler getChannelUrlIdHandlerInstance() {
+        return SoundcloudChannelUrlIdHandler.getInstance();
+    }
+
+
+    @Override
+    public UrlIdHandler getPlaylistUrlIdHandlerInstance() {
+        return SoundcloudPlaylistUrlIdHandler.getInstance();
+    }
+
+    @Override
+    public ChannelExtractor getChannelExtractorInstance(String url) throws ExtractionException, IOException {
+        return new SoundcloudChannelExtractor(getChannelUrlIdHandlerInstance(), url, getServiceId());
+    }
+
+    @Override
+    public PlaylistExtractor getPlaylistExtractorInstance(String url) throws ExtractionException, IOException {
+        return new SoundcloudPlaylistExtractor(getPlaylistUrlIdHandlerInstance(), url, getServiceId());
+    }
+
+    @Override
+    public SuggestionExtractor getSuggestionExtractorInstance() {
+        return new SoundcloudSuggestionExtractor(getServiceId());
+    }
+}