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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.CharBuffer;
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6 import java.nio.channels.SocketChannel;
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7 import java.nio.charset.Charset;
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8 import java.nio.charset.CharsetEncoder;
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9
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10
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11 public class REPPacketSend {
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12 SocketChannel socketchannel;
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48
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13 // JIS/S-JIS = 2, UTF-8 = 3, UTF-?? = 5
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14 final int CHAR_ORDER = 5;
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15
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16 public REPPacketSend(SocketChannel sc){
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17 socketchannel = sc;
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18 }
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19
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20 public ByteBuffer pack(REPCommand command){
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21 System.out.println("send command: " + command.toString());
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45
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22 if(command.string == null){
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23 command.setString("test");
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24 }
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25 ByteBuffer buffer = ByteBuffer.allocateDirect(24+(command.string).length()*2);
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26 buffer.clear(); // position = 0
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27 buffer.putInt(command.cmd); buffer.putInt(command.sid); buffer.putInt(command.eid);
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28 buffer.putInt(command.seq); buffer.putInt(command.lineno);
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29 buffer.putInt(command.string.length()*2);
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30 for(int i=0;i<command.string.length();i++) {
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31 buffer.putChar(command.string.charAt(i));
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32 }
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33 buffer.flip(); // limit = current position, position = 0
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34 return buffer;
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35 }
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36
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37 public ByteBuffer packUConv(REPCommand command){
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38 System.out.println("send command byUTF8: " + command.toString());
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39 if(command.string == null){
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40 command.setString("test");
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41 }
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42 ByteBuffer buffer = ByteBuffer.allocateDirect(24+(command.string.length()*CHAR_ORDER));
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43 buffer.clear(); // position = 0
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44 buffer.putInt(command.cmd); buffer.putInt(command.sid); buffer.putInt(command.eid);
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45 buffer.putInt(command.seq); buffer.putInt(command.lineno);
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46
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47 int pos = buffer.position();
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48 buffer.putInt(0);
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49
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50 //Encode to UTF8
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51 CharBuffer cb = CharBuffer.wrap(command.string);
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52 Charset charset = Charset.forName("UTF-8");
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53 CharsetEncoder encoder = charset.newEncoder();
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54 try {
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55 encoder.encode(cb, buffer, true);
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56 } catch (IllegalStateException e) {
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57 e.printStackTrace();
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58 }
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59
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60 //Encoded string length set
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61 int length = (buffer.position() -pos) -4;
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62 System.out.println("UTF-8: Set REPComand textlen(Byte) : " + (buffer.position() - pos-4));
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63 if(length < 0) {
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64 length = 0;
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65 }
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66 buffer.putInt(pos, length);
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67
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68 buffer.limit(24+length);
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69 buffer.rewind();
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70
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71 return buffer;
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72 }
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73
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74 public void send(REPCommand command){
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75 try {
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76 socketchannel.write(pack(command));
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77 //socketchannel.write(packUConv(command));
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78 //System.out.println(command.toString());
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79 } catch (IOException e) {
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80 e.printStackTrace();
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81 }
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82 }
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83 }
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