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1
29 package net.metanotion.io;
30
31 import java.io.ByteArrayInputStream  ;
32 import java.io.ByteArrayOutputStream ;
33 import java.io.DataInputStream ;
34 import java.io.DataOutputStream ;
35 import java.io.IOException ;
36
37 import net.metanotion.io.Serializer;
38
39 public abstract class SerialStreams implements Serializer {
40 public byte[] getBytes(Object o) {
41 try {
42 ByteArrayOutputStream baos = new ByteArrayOutputStream ();
43 DataOutputStream dos = new DataOutputStream (baos);
44 writeOut(dos, o);
45 return baos.toByteArray();
46 } catch (IOException ioe) { throw new Error (); }
47 }
48
49 public Object construct(byte[] b) {
50 try {
51 ByteArrayInputStream bais = new ByteArrayInputStream (b);
52 DataInputStream dis = new DataInputStream (bais);
53 return readIn(dis);
54 } catch (IOException ioe) {
55 ioe.printStackTrace();
56 throw new Error ();
57 }
58 }
59
60 abstract public void writeOut(DataOutputStream dos, Object o) throws IOException ;
61 abstract public Object readIn(DataInputStream dis) throws IOException ;
62 }
63 |
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