1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
package pl.edu.mimuw.cloudatlas.agent.modules;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.GetStateMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.StanikMessage;
import pl.edu.mimuw.cloudatlas.agent.messages.UDUPMessage;
import pl.edu.mimuw.cloudatlas.model.PathName;
import pl.edu.mimuw.cloudatlas.model.ValueContact;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* Serializes classes to and from byte arrays for UDP use
*/
public class UDUPSerializer {
private Kryo kryo;
UDUPSerializer() {
kryo = new Kryo();
kryo.setReferences(true);
kryo.setRegistrationRequired(true);
registerClasses();
}
private void registerClasses() {
kryo.register(Inet4Address.class, new Serializer() {
@Override
public void write(Kryo kryo, Output output, Object object) {
InetAddress ia = (InetAddress) object;
kryo.writeObject(output, ia.getAddress());
}
@Override
public Object read(Kryo kryo, Input input, Class type) {
try {
byte[] buf = kryo.readObject(input, byte[].class);
InetAddress addr = Inet4Address.getByAddress(buf);
return addr;
} catch (UnknownHostException e) {
System.out.println("Custom InetAddress read failed");
e.printStackTrace();
return null;
}
}
});
kryo.register(PathName.class, new Serializer() {
@Override
public void write(Kryo kryo, Output output, Object object) {
PathName pn = (PathName) object;
kryo.writeObject(output, pn.getName());
}
@Override
public Object read(Kryo kryo, Input input, Class type) {
String addr = input.readString();
return new PathName(addr);
}
});
kryo.register(byte[].class);
kryo.register(ValueContact.class);
kryo.register(ModuleType.class);
kryo.register(AgentMessage.class);
kryo.register(GetStateMessage.class);
kryo.register(UDUPMessage.class);
kryo.register(StanikMessage.Type.class);
kryo.register(StanikMessage.class);
}
public UDUPMessage deserialize(byte[] packetData) {
ByteArrayInputStream in = new ByteArrayInputStream(packetData);
Input kryoInput = new Input(in);
UDUPMessage msg = kryo.readObject(kryoInput, UDUPMessage.class);
return msg;
}
public byte[] serialize(UDUPMessage msg) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
Output kryoOut = new Output(out);
kryo.writeObject(kryoOut, msg);
kryoOut.flush();
kryoOut.close();
return out.toByteArray();
}
}
|