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1
4 package com.tc.management.remote.protocol.terracotta;
5
6 import java.io.IOException  ;
7 import java.util.LinkedList ;
8 import java.util.Map ;
9
10 import javax.management.remote.generic.MessageConnection;
11 import javax.management.remote.message.Message;
12
13 import com.tc.net.protocol.tcm.MessageChannel;
14 import com.tc.net.protocol.tcm.TCMessageType;
15
16 public final class TunnelingMessageConnection implements MessageConnection {
17
18 private final LinkedList inbox;
19 private final MessageChannel channel;
20 private boolean connected;
21 private final boolean isJmxConnectionServer;
22
23
27 public TunnelingMessageConnection(final MessageChannel channel, boolean isJmxConnectionServer) {
28 this.isJmxConnectionServer = isJmxConnectionServer;
29 this.inbox = new LinkedList ();
30 this.channel = channel;
31 connected = false;
32 }
33
34 public synchronized void close() throws IOException {
35 checkConnected();
36 connected = false;
37 synchronized (inbox) {
38 inbox.clear();
39 inbox.notifyAll();
40 }
41 }
42
43 public synchronized void connect(final Map environment) throws IOException {
44 if (connected) { throw new IOException ("Connection is already open"); }
45 if (!isJmxConnectionServer) {
46 JmxRemoteTunnelMessage connectMessage = (JmxRemoteTunnelMessage) channel
47 .createMessage(TCMessageType.JMXREMOTE_MESSAGE_CONNECTION_MESSAGE);
48 connectMessage.setInitConnection();
49 connectMessage.send();
50 }
51 connected = true;
52 }
53
54 public String getConnectionId() {
55 return channel.getRemoteAddress().getStringForm();
56 }
57
58 public Message readMessage() throws IOException , ClassNotFoundException {
59 Message inboundMessage = null;
60 while (inboundMessage == null) {
61 checkConnected();
62 synchronized (inbox) {
63 if (inbox.isEmpty()) {
64 try {
65 inbox.wait();
66 } catch (InterruptedException ie) {
67 throw new IOException ("Interrupted while waiting for inbound message");
68 }
69 } else {
70 inboundMessage = (Message) inbox.removeFirst();
71 inbox.notifyAll();
72 }
73 }
74 }
75 return inboundMessage;
76 }
77
78 public void writeMessage(final Message outboundMessage) throws IOException {
79 JmxRemoteTunnelMessage messageEnvelope = (JmxRemoteTunnelMessage) channel
80 .createMessage(TCMessageType.JMXREMOTE_MESSAGE_CONNECTION_MESSAGE);
81 messageEnvelope.setTunneledMessage(outboundMessage);
82 messageEnvelope.send();
83 }
84
85
88 void incomingNetworkMessage(final Message inboundMessage) {
89 synchronized (this) {
90 if (!connected) return;
91 }
92 synchronized (inbox) {
93 inbox.addLast(inboundMessage);
94 inbox.notifyAll();
95 }
96 }
97
98 private synchronized void checkConnected() throws IOException {
99 if (!connected) { throw new IOException ("Connection has been closed"); }
100 }
101
102 }
103
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