package redis.clients.jedis;
import static redis.clients.jedis.Protocol.Keyword.MESSAGE;
import static redis.clients.jedis.Protocol.Keyword.PMESSAGE;
import static redis.clients.jedis.Protocol.Keyword.PSUBSCRIBE;
import static redis.clients.jedis.Protocol.Keyword.PUNSUBSCRIBE;
import static redis.clients.jedis.Protocol.Keyword.SUBSCRIBE;
import static redis.clients.jedis.Protocol.Keyword.UNSUBSCRIBE;
import java.util.Arrays;
import java.util.List;
import redis.clients.jedis.exceptions.JedisException;
public abstract class BinaryJedisPubSub {
private int subscribedChannels = 0;
private Client client;
public abstract void onMessage(byte[] channel, byte[] message);
public abstract void onPMessage(byte[] pattern, byte[] channel,
byte[] message);
public abstract void onSubscribe(byte[] channel, int subscribedChannels);
public abstract void onUnsubscribe(byte[] channel, int subscribedChannels);
public abstract void onPUnsubscribe(byte[] pattern, int subscribedChannels);
public abstract void onPSubscribe(byte[] pattern, int subscribedChannels);
public void unsubscribe() {
client.unsubscribe();
client.flush();
}
public void unsubscribe(byte[]... channels) {
client.unsubscribe(channels);
client.flush();
}
public void subscribe(byte[]... channels) {
client.subscribe(channels);
client.flush();
}
public void psubscribe(byte[]... patterns) {
client.psubscribe(patterns);
client.flush();
}
public void punsubscribe() {
client.punsubscribe();
client.flush();
}
public void punsubscribe(byte[]... patterns) {
client.punsubscribe(patterns);
client.flush();
}
public boolean isSubscribed() {
return subscribedChannels > 0;
}
public void proceedWithPatterns(Client client, byte[]... patterns) {
this.client = client;
client.psubscribe(patterns);
process(client);
}
public void proceed(Client client, byte[]... channels) {
this.client = client;
client.subscribe(channels);
process(client);
}
private void process(Client client) {
do {
List<Object> reply = client.getObjectMultiBulkReply();
final Object firstObj = reply.get(0);
if (!(firstObj instanceof byte[])) {
throw new JedisException("Unknown message type: " + firstObj);
}
final byte[] resp = (byte[]) firstObj;
if (Arrays.equals(SUBSCRIBE.raw, resp)) {
subscribedChannels = ((Long) reply.get(2)).intValue();
final byte[] bchannel = (byte[]) reply.get(1);
onSubscribe(bchannel, subscribedChannels);
} else if (Arrays.equals(UNSUBSCRIBE.raw, resp)) {
subscribedChannels = ((Long) reply.get(2)).intValue();
final byte[] bchannel = (byte[]) reply.get(1);
onUnsubscribe(bchannel, subscribedChannels);
} else if (Arrays.equals(MESSAGE.raw, resp)) {
final byte[] bchannel = (byte[]) reply.get(1);
final byte[] bmesg = (byte[]) reply.get(2);
onMessage(bchannel, bmesg);
} else if (Arrays.equals(PMESSAGE.raw, resp)) {
final byte[] bpattern = (byte[]) reply.get(1);
final byte[] bchannel = (byte[]) reply.get(2);
final byte[] bmesg = (byte[]) reply.get(3);
onPMessage(bpattern, bchannel, bmesg);
} else if (Arrays.equals(PSUBSCRIBE.raw, resp)) {
subscribedChannels = ((Long) reply.get(2)).intValue();
final byte[] bpattern = (byte[]) reply.get(1);
onPSubscribe(bpattern, subscribedChannels);
} else if (Arrays.equals(PUNSUBSCRIBE.raw, resp)) {
subscribedChannels = ((Long) reply.get(2)).intValue();
final byte[] bpattern = (byte[]) reply.get(1);
onPUnsubscribe(bpattern, subscribedChannels);
} else {
throw new JedisException("Unknown message type: " + firstObj);
}
} while (isSubscribed());
}
public int getSubscribedChannels() {
return subscribedChannels;
}
}