package io.vertx.mysqlclient.impl.codec;
import io.netty.buffer.ByteBuf;
import io.vertx.sqlclient.impl.command.CloseStatementCommand;
import io.vertx.sqlclient.impl.command.CommandResponse;
class CloseStatementCommandCodec extends CommandCodec<Void, CloseStatementCommand> {
private static final int PAYLOAD_LENGTH = 5;
CloseStatementCommandCodec(CloseStatementCommand cmd) {
super(cmd);
}
@Override
void encode(MySQLEncoder encoder) {
super.encode(encoder);
MySQLPreparedStatement statement = (MySQLPreparedStatement) cmd.statement();
sendCloseStatementCommand(statement);
completionHandler.handle(CommandResponse.success(null));
}
@Override
void decodePayload(ByteBuf payload, int payloadLength, int sequenceId) {
// no statement response
}
private void sendCloseStatementCommand(MySQLPreparedStatement statement) {
ByteBuf packet = allocateBuffer(PAYLOAD_LENGTH + 4);
// encode packet header
packet.writeMediumLE(PAYLOAD_LENGTH);
packet.writeByte(sequenceId);
// encode packet payload
packet.writeByte(CommandType.COM_STMT_CLOSE);
packet.writeIntLE((int) statement.statementId);
sendNonSplitPacket(packet);
}
}