This repository has been archived by the owner on Jan 21, 2022. It is now read-only.
/
WebsocketSinkConfiguration.java
120 lines (98 loc) · 4.04 KB
/
WebsocketSinkConfiguration.java
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
/*
* Copyright 2014-2018 the original author or authors.
*
* 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
*
* https://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 org.springframework.cloud.stream.app.websocket.sink;
import java.security.cert.CertificateException;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.net.ssl.SSLException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.app.websocket.sink.actuator.WebsocketSinkTraceEndpoint;
import org.springframework.cloud.stream.app.websocket.sink.trace.InMemoryTraceRepository;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.messaging.Message;
import org.springframework.messaging.simp.SimpMessageHeaderAccessor;
import org.springframework.messaging.simp.SimpMessageType;
import io.netty.channel.Channel;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
/**
* @author Oliver Moser
* @author Gary Russell
* @author Artem Bilan
*/
@Configuration
@EnableConfigurationProperties(WebsocketSinkProperties.class)
@EnableBinding(Sink.class)
public class WebsocketSinkConfiguration {
private static final Log logger = LogFactory.getLog(WebsocketSinkConfiguration.class);
private final InMemoryTraceRepository websocketTraceRepository = new InMemoryTraceRepository();
@Value("${endpoints.websocketsinktrace.enabled:false}")
private boolean traceEndpointEnabled;
@PostConstruct
public void init() throws InterruptedException {
server().run();
}
@Bean
public WebsocketSinkServer server() {
return new WebsocketSinkServer();
}
@Bean
public WebsocketSinkServerInitializer initializer() {
return new WebsocketSinkServerInitializer(this.websocketTraceRepository);
}
@Bean
@ConditionalOnProperty(value = "endpoints.websocketsinktrace.enabled", havingValue = "true")
public WebsocketSinkTraceEndpoint websocketTraceEndpoint() {
return new WebsocketSinkTraceEndpoint(this.websocketTraceRepository);
}
@StreamListener(Sink.INPUT)
public void websocketSink(Message<?> message) {
if (logger.isTraceEnabled()) {
logger.trace("Handling message: " + message);
}
SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.wrap(message);
headers.setMessageTypeIfNotSet(SimpMessageType.MESSAGE);
String messagePayload = message.getPayload().toString();
for (Channel channel : WebsocketSinkServer.channels) {
if (logger.isTraceEnabled()) {
logger.trace(String.format("Writing message %s to channel %s", messagePayload, channel.localAddress()));
}
channel.write(new TextWebSocketFrame(messagePayload));
channel.flush();
}
if (this.traceEndpointEnabled) {
addMessageToTraceRepository(message);
}
}
private void addMessageToTraceRepository(Message<?> message) {
Map<String, Object> trace = new LinkedHashMap<>();
trace.put("type", "text");
trace.put("direction", "out");
trace.put("id", message.getHeaders().getId());
trace.put("payload", message.getPayload().toString());
this.websocketTraceRepository.add(trace);
}
}