blob: 757d3bc92f147de5ccc8360cf2a9b9f3d902964c (
plain)
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
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.net;
import android.net.NetworkIdentity;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ProtocolException;
import java.util.HashSet;
/**
* Identity of a {@code iface}, defined by the set of {@link NetworkIdentity}
* active on that interface.
*
* @hide
*/
public class NetworkIdentitySet extends HashSet<NetworkIdentity> {
private static final int VERSION_INIT = 1;
public NetworkIdentitySet() {
}
public NetworkIdentitySet(DataInputStream in) throws IOException {
final int version = in.readInt();
switch (version) {
case VERSION_INIT: {
final int size = in.readInt();
for (int i = 0; i < size; i++) {
final int ignoredVersion = in.readInt();
final int type = in.readInt();
final int subType = in.readInt();
final String subscriberId = readOptionalString(in);
add(new NetworkIdentity(type, subType, subscriberId));
}
break;
}
default: {
throw new ProtocolException("unexpected version: " + version);
}
}
}
public void writeToStream(DataOutputStream out) throws IOException {
out.writeInt(VERSION_INIT);
out.writeInt(size());
for (NetworkIdentity ident : this) {
out.writeInt(VERSION_INIT);
out.writeInt(ident.getType());
out.writeInt(ident.getSubType());
writeOptionalString(out, ident.getSubscriberId());
}
}
private static void writeOptionalString(DataOutputStream out, String value) throws IOException {
if (value != null) {
out.writeByte(1);
out.writeUTF(value);
} else {
out.writeByte(0);
}
}
private static String readOptionalString(DataInputStream in) throws IOException {
if (in.readByte() != 0) {
return in.readUTF();
} else {
return null;
}
}
}
|