package io.vertx.mysqlclient.impl.codec;
import io.netty.buffer.ByteBuf;
import io.vertx.mysqlclient.impl.command.StatisticsCommand;
import io.vertx.sqlclient.impl.command.CommandResponse;
import java.nio.charset.StandardCharsets;
class StatisticsCommandCodec extends CommandCodec<String, StatisticsCommand> {
private static final int PAYLOAD_LENGTH = 1;
StatisticsCommandCodec(StatisticsCommand cmd) {
super(cmd);
}
@Override
void encode(MySQLEncoder encoder) {
super.encode(encoder);
sendStatisticsCommand();
}
@Override
void decodePayload(ByteBuf payload, int payloadLength, int sequenceId) {
completionHandler.handle(CommandResponse.success(payload.toString(StandardCharsets.UTF_8)));
}
private void sendStatisticsCommand() {
ByteBuf packet = allocateBuffer(PAYLOAD_LENGTH + 4);
// encode packet header
packet.writeMediumLE(PAYLOAD_LENGTH);
packet.writeByte(sequenceId);
// encode packet payload
packet.writeByte(CommandType.COM_STATISTICS);
sendNonSplitPacket(packet);
}
}