blob: 8b6d0c6a8c2b65305385c3ec4974d7f93764e03a (
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2019-2020 Nordix Foundation.
* Modifications Copyright (C) 2021 Bell Canada. All rights reserved.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.core.infrastructure.messaging.stringmessaging;
import com.google.common.eventbus.Subscribe;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import org.onap.policy.apex.core.infrastructure.messaging.MessageListener;
import org.onap.policy.apex.core.infrastructure.messaging.MessagingException;
import org.onap.policy.apex.core.infrastructure.messaging.MessagingService;
import org.onap.policy.apex.core.infrastructure.messaging.MessagingServiceFactory;
import org.onap.policy.apex.core.infrastructure.messaging.impl.ws.messageblock.MessageBlock;
import org.onap.policy.apex.core.infrastructure.messaging.util.MessagingUtils;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
/**
* This class runs a web socket server for sending and receiving of strings over a web socket.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class WsStringMessageServer implements WsStringMessager {
private static final XLogger LOGGER = XLoggerFactory.getXLogger(WsStringMessageServer.class);
// Message service factory and the message service itself
private final MessagingServiceFactory<String> factory = new MessagingServiceFactory<>();
private MessagingService<String> service = null;
// The listener to use for reception of strings
private WsStringMessageListener wsStringMessageListener;
// Address of the server
private final int port;
/**
* Constructor, define the port of the server.
*
* @param port the port of the server
*/
public WsStringMessageServer(final int port) {
this.port = port;
}
/**
* {@inheritDoc}.
*/
@Override
public void start(final WsStringMessageListener newWsStringMessageListener) throws MessagingException {
LOGGER.entry("web socket event consumer server starting . . .");
if (LOGGER.isDebugEnabled()) {
var lanaddress = "unknown";
try {
lanaddress = MessagingUtils.getLocalHostLanAddress().getHostAddress();
} catch (final UnknownHostException ignore) {
LOGGER.debug("Failed to find name of local address name", ignore);
}
LOGGER.debug("web socket string message server LAN address=" + lanaddress);
var hostaddress = "unknown";
try {
hostaddress = InetAddress.getLocalHost().getHostAddress();
} catch (final UnknownHostException ignore) {
LOGGER.debug("Failed to find name of local address", ignore);
}
LOGGER.debug("web socket string message server host address=" + hostaddress);
}
this.wsStringMessageListener = newWsStringMessageListener;
try {
service = factory.createServer(new InetSocketAddress(port));
service.addMessageListener(new WsStringMessageServerListener());
service.startConnection();
} catch (final Exception e) {
LOGGER.warn("web socket string message server start failed", e);
throw new MessagingException("web socket string message start failed", e);
}
LOGGER.exit("web socket string message server started");
}
/**
* {@inheritDoc}.
*/
@Override
public void stop() {
LOGGER.entry("web socket string message server stopping . . .");
service.stopConnection();
LOGGER.exit("web socket string message server stopped");
}
/**
* {@inheritDoc}.
*/
@Override
public void sendString(final String stringMessage) {
service.send(stringMessage);
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("server sent message: {}", stringMessage);
}
}
/**
* The listener for strings coming into the server.
*/
private class WsStringMessageServerListener implements MessageListener<String> {
/**
* {@inheritDoc}.
*/
@Subscribe
@Override
public void onMessage(final MessageBlock<String> messageBlock) {
throw new UnsupportedOperationException("raw messages are not supported on string message clients");
}
/**
* {@inheritDoc}.
*/
@Subscribe
@Override
public void onMessage(final String messageString) {
wsStringMessageListener.receiveString(messageString);
}
}
/**
* {@inheritDoc}.
*/
@Override
public boolean isStarted() {
return service.isStarted();
}
}
|
