author | alanb |
Mon, 09 May 2011 18:45:33 +0100 | |
changeset 9679 | d98ae8bc45fc |
parent 5506 | 202f599c92aa |
child 10292 | ed7db6a12c2a |
permissions | -rw-r--r-- |
1152 | 1 |
/* |
5506 | 2 |
* Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved. |
1152 | 3 |
* |
4 |
* Redistribution and use in source and binary forms, with or without |
|
5 |
* modification, are permitted provided that the following conditions |
|
6 |
* are met: |
|
7 |
* |
|
8 |
* - Redistributions of source code must retain the above copyright |
|
9 |
* notice, this list of conditions and the following disclaimer. |
|
10 |
* |
|
11 |
* - Redistributions in binary form must reproduce the above copyright |
|
12 |
* notice, this list of conditions and the following disclaimer in the |
|
13 |
* documentation and/or other materials provided with the distribution. |
|
14 |
* |
|
5506 | 15 |
* - Neither the name of Oracle nor the names of its |
1152 | 16 |
* contributors may be used to endorse or promote products derived |
17 |
* from this software without specific prior written permission. |
|
18 |
* |
|
19 |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
|
20 |
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
|
21 |
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
|
22 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
|
23 |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
|
24 |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
25 |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
|
26 |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
|
27 |
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
|
28 |
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|
29 |
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
30 |
*/ |
|
31 |
||
32 |
import java.nio.channels.*; |
|
33 |
import java.nio.charset.Charset; |
|
34 |
import java.net.*; |
|
35 |
import java.io.IOException; |
|
36 |
import java.util.*; |
|
37 |
||
38 |
/** |
|
39 |
* Sample multicast sender to send a message in a multicast datagram |
|
40 |
* to a given group. |
|
41 |
*/ |
|
42 |
||
43 |
public class Sender { |
|
44 |
||
45 |
private static void usage() { |
|
46 |
System.err.println("usage: java Sender group:port[@interface] message"); |
|
47 |
System.exit(-1); |
|
48 |
} |
|
49 |
||
50 |
public static void main(String[] args) throws IOException { |
|
51 |
if (args.length < 2) |
|
52 |
usage(); |
|
53 |
||
54 |
MulticastAddress target = MulticastAddress.parse(args[0]); |
|
55 |
||
56 |
// create socket |
|
57 |
ProtocolFamily family = StandardProtocolFamily.INET; |
|
58 |
if (target.group() instanceof Inet6Address) |
|
59 |
family = StandardProtocolFamily.INET6; |
|
60 |
DatagramChannel dc = DatagramChannel.open(family).bind(new InetSocketAddress(0)); |
|
61 |
if (target.interf() != null) { |
|
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
5506
diff
changeset
|
62 |
dc.setOption(StandardSocketOptions.IP_MULTICAST_IF, target.interf()); |
1152 | 63 |
} |
64 |
||
65 |
// send multicast packet |
|
66 |
dc.send(Charset.defaultCharset().encode(args[1]), |
|
67 |
new InetSocketAddress(target.group(), target.port())); |
|
68 |
dc.close(); |
|
69 |
} |
|
70 |
||
71 |
} |