package se.despotify.client.protocol.command.media;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import se.despotify.BrowseType;
import se.despotify.ConnectionManager;
import se.despotify.ManagedConnection;
import se.despotify.client.protocol.ResponseUnmarshaller;
import se.despotify.client.protocol.PacketType;
import se.despotify.client.protocol.channel.Channel;
import se.despotify.client.protocol.channel.ChannelCallback;
import se.despotify.client.protocol.command.Command;
import se.despotify.domain.Store;
import se.despotify.domain.media.Artist;
import se.despotify.exceptions.DespotifyException;
import se.despotify.exceptions.ReceivedEmptyResponseException;
import se.despotify.util.*;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamException;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.Date;
import java.util.zip.GZIPInputStream;
import java.io.*;
/**
* @since 2009-apr-25 16:28:42
*/
public class LoadArtist extends Command<Artist> {
// public static final MeanTimer timeRequest = new MeanTimer("request and get zipped xml response");
// public static final MeanTimer timeUnmarshall = new MeanTimer("unmarshall zipped xml response");
protected static Logger log = LoggerFactory.getLogger(LoadArtist.class);
private Artist artist;
private Store store;
public LoadArtist(Store store, Artist artist) {
this.store = store;
this.artist = artist;
}
@Override
public Artist send(ConnectionManager connectionManager) throws DespotifyException {
Date now = new Date();
/* Create channel callback */
ChannelCallback callback = new ChannelCallback();
/* Send browse request. */
/* Create channel and buffer. */
Channel channel = new Channel("Browse-Channel", Channel.Type.TYPE_BROWSE, callback);
ByteBuffer buffer = ByteBuffer.allocate(2 + 1 + 16 + 4);
buffer.putShort((short) channel.getId());
buffer.put((byte) BrowseType.artist.getValue());
buffer.put(artist.getByteUUID());
buffer.putInt(0); // unknown
buffer.flip();
/* Register channel. */
Channel.register(channel);
/* Send packet. */
ManagedConnection connection = connectionManager.getManagedConnection();
// timeRequest.start();
connection.getProtocol().sendPacket(PacketType.browse, buffer, "load artist");
/* Get data and inflate it. */
byte[] data = callback.getData("gzipped load artist response");
// timeRequest.stop();
connection.close();
if (log.isInfoEnabled()) {
log.info("load artist response, " + data.length + " uncompressed bytes:\n" + Hex.log(data, log));
}
Artist artist;
if (data.length == 0) {
if ("Various Artists".equals(this.artist.getName())) {
artist = this.artist;
artist.setLoaded(now);
// good stuff // todo figure this out, various artists does not seem to get loaded> 19334eaffa3f4f2282e251e36611e26f
} else {
throw new ReceivedEmptyResponseException("This might be a real problem while communicting with Spotify, it can also be that you tried to load an artist representing 'Various Artists' Spotify will return an empty result. The official client does not seem to ever load such an artist.\n"+this.artist.getId());
}
} else {
// timeUnmarshall.start();
try {
XMLStreamReader xmlr = ResponseUnmarshaller.createReader(new InputStreamReader(new GZIPInputStream(new ByteArrayInputStream(data)), Charset.forName("UTF-8")));
ResponseUnmarshaller responseUnmarshaller = new ResponseUnmarshaller(store, xmlr);
responseUnmarshaller.skip();
if (!"artist".equals(xmlr.getLocalName())) {
throw new DespotifyException("Expected document root to be of type <artist>");
}
artist = responseUnmarshaller.unmarshallArtist(new Date());
if (!this.artist.equals(artist)) {
throw new DespotifyException("Artist in response has different UUID than the requested artist!");
}
xmlr.close();
} catch (XMLStreamException e) {
throw new DespotifyException(e);
} catch (IOException e) {
throw new DespotifyException(e);
}
// timeUnmarshall.stop();
}
// try {
// String xml = new String(data, Charset.forName("UTF-8"));
// Writer out = new OutputStreamWriter(new FileOutputStream(new java.io.File("tmp/load_artist_"+artist.getId()+".xml")), "UTF8");
// out.write(xml);
// out.close();
// } catch (IOException e) {
// e.printStackTrace();
// }
// System.out.println(timeRequest);
// System.out.println(timeUnmarshall);
return (Artist) store.persist(artist);
}
}