Source Code Cross Referenced for JGroupsClusterTransport.java in  » Net » JGroups-2.4.1-sp3 » org » jgroups » tests » perf » transports » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » JGroups 2.4.1 sp3 » org.jgroups.tests.perf.transports 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        package org.jgroups.tests.perf.transports;
02:
03:        import org.jgroups.Address;
04:        import org.jgroups.Message;
05:        import org.jgroups.stack.IpAddress;
06:        import org.jgroups.tests.perf.Transport;
07:
08:        import java.util.ArrayList;
09:        import java.util.List;
10:        import java.util.Properties;
11:        import java.util.StringTokenizer;
12:
13:        /**
14:         * Transport with a minimal stack (usually only UDP or TCP transport layer !) and explicit notion of
15:         * cluster membership (listed in properties, config.txt)
16:         * @author Bela Ban Jan 22
17:         * @author 2004
18:         * @version $Id: JGroupsClusterTransport.java,v 1.2 2005/11/08 13:58:07 belaban Exp $
19:         */
20:        public class JGroupsClusterTransport extends JGroupsTransport implements 
21:                Transport {
22:            List members;
23:
24:            public JGroupsClusterTransport() {
25:                super ();
26:            }
27:
28:            public void create(Properties properties) throws Exception {
29:                super .create(properties);
30:                String cluster_def = config.getProperty("cluster");
31:                if (cluster_def == null)
32:                    throw new Exception("property 'cluster' is not defined");
33:                members = parseCommaDelimitedList(cluster_def);
34:            }
35:
36:            public void send(Object destination, byte[] payload)
37:                    throws Exception {
38:                Message msg = new Message((Address) destination, null, payload);
39:
40:                if (destination != null)
41:                    channel.send(msg);
42:                else {
43:                    // we don't know the membership from discovery, so we need to send individually
44:                    Address mbr;
45:                    for (int i = 0; i < members.size(); i++) {
46:                        mbr = (Address) members.get(i);
47:                        msg.setDest(mbr);
48:                        channel.send(msg);
49:                    }
50:                }
51:            }
52:
53:            private List parseCommaDelimitedList(String s) throws Exception {
54:                List retval = new ArrayList();
55:                StringTokenizer tok;
56:                String hostname, tmp;
57:                int port;
58:                Address addr;
59:                int index;
60:
61:                if (s == null)
62:                    return null;
63:                tok = new StringTokenizer(s, ",");
64:                while (tok.hasMoreTokens()) {
65:                    tmp = tok.nextToken();
66:                    index = tmp.indexOf(':');
67:                    if (index == -1)
68:                        throw new Exception(
69:                                "host must be in format <host:port>, was "
70:                                        + tmp);
71:                    hostname = tmp.substring(0, index);
72:                    port = Integer.parseInt(tmp.substring(index + 1));
73:                    addr = new IpAddress(hostname, port);
74:                    retval.add(addr);
75:                }
76:                return retval;
77:            }
78:        }
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