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1 package rep;
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2
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3 import java.io.IOException;
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4 import java.nio.ByteBuffer;
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5 import java.nio.channels.SocketChannel;
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6
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7 public class REPPacketSend {
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8 SocketChannel socketchannel;
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9
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10 public REPPacketSend(SocketChannel sc){
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11 socketchannel = sc;
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12 }
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13
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14 public ByteBuffer pack(REPCommand command){
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15 System.out.println("send command: " + command.toString());
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16 ByteBuffer buffer = ByteBuffer.allocateDirect(24+(command.string).length()*2);
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17 buffer.clear(); // position = 0
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18 buffer.putInt(command.cmd); buffer.putInt(command.sid); buffer.putInt(command.eid);
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19 buffer.putInt(command.seq); buffer.putInt(command.lineno);
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20 buffer.putInt(command.string.length()*2);
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21 for(int i=0;i<command.string.length();i++) {
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22 buffer.putChar(command.string.charAt(i));
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23 }
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24 buffer.flip(); // limit = current position, position = 0
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25 return buffer;
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26 }
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27
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28 public void send(REPCommand command){
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29 try {
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30 socketchannel.write(pack(command));
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31 //System.out.println(command.toString());
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32 } catch (IOException e) {
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33 e.printStackTrace();
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34 }
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35 }
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36 }
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