public MSRedisClient(RedisConnection masterConnection, List<RedisConnection> slaveConnections) {
this.masterConnection = masterConnection;
this.slaveConnections = slaveConnections;
master = new SyncRedisClient(masterConnection);
virtualSlaves = new CopyOnWriteArrayList<RedisClient>();
slaves = new LinkedBlockingQueue<RedisClient>(slaveConnections.size());
StringBuilder builder = new StringBuilder();
builder.append(String.format("%s|%s", masterConnection.address, masterConnection.db));
for (final RedisConnection connection : slaveConnections) {
final RedisClient redisClient = new SyncRedisClient(connection);
slaves.add(redisClient);
builder.append(";").append(String.format("%s|%s", connection.address, connection.db));
// 根据权重将slave node放到虚拟节点中，权重高的放的越多。被访问的次数也就越多
for (int i = 0; i < connection.weight; i++) {
virtualSlaves.add(redisClient);
}
// redis 连接异常时自动从slave列表中删除
redisClient.setClosedHandler(
new AsyncRedisClient.ClosedHandler() {
@Override
public void onClosed(AsyncRedisClient client) {
slaves.remove(redisClient);
while (virtualSlaves.remove(redisClient)) {}
}
});
// redis 重连成功时重新加入slave列表
redisClient.setConnectedHandler(
new AsyncRedisClient.ConnectedHandler() {
@Override
public void onConnected(AsyncRedisClient client) {
slaves.add(redisClient);
for (int i = 0; i < connection.weight; i++) {
virtualSlaves.add(redisClient);
}
}
});
}
hashKey = builder.toString();
}
