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
|
// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.http.server.jetty;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.http.ConnectorConfig;
import org.eclipse.jetty.server.ConnectionFactory;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnectionStatistics;
import org.eclipse.jetty.server.ServerConnector;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpServletRequest;
import java.net.Socket;
import java.net.SocketException;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
/**
* @author bjorncs
*/
class JDiscServerConnector extends ServerConnector {
public static final String REQUEST_ATTRIBUTE = JDiscServerConnector.class.getName();
private final Metric.Context metricCtx;
private final Map<RequestDimensions, Metric.Context> requestMetricContextCache = new ConcurrentHashMap<>();
private final ServerConnectionStatistics statistics;
private final ConnectorConfig config;
private final boolean tcpKeepAlive;
private final boolean tcpNoDelay;
private final Metric metric;
private final String connectorName;
private final int listenPort;
JDiscServerConnector(ConnectorConfig config, Metric metric, Server server, ConnectionFactory... factories) {
super(server, factories);
this.config = config;
this.tcpKeepAlive = config.tcpKeepAliveEnabled();
this.tcpNoDelay = config.tcpNoDelay();
this.metric = metric;
this.connectorName = config.name();
this.listenPort = config.listenPort();
this.metricCtx = metric.createContext(createConnectorDimensions(listenPort, connectorName));
this.statistics = new ServerConnectionStatistics();
addBean(statistics);
ConnectorConfig.Throttling throttlingConfig = config.throttling();
if (throttlingConfig.enabled()) {
new ConnectionThrottler(this, throttlingConfig).registerWithConnector();
}
}
@Override
protected void configure(final Socket socket) {
super.configure(socket);
try {
socket.setKeepAlive(tcpKeepAlive);
socket.setTcpNoDelay(tcpNoDelay);
} catch (SocketException ignored) {
}
}
public ServerConnectionStatistics getStatistics() {
return statistics;
}
public Metric.Context getConnectorMetricContext() {
return metricCtx;
}
public Metric.Context getRequestMetricContext(HttpServletRequest request) {
String method = request.getMethod();
String scheme = request.getScheme();
var requestDimensions = new RequestDimensions(method, scheme);
return requestMetricContextCache.computeIfAbsent(requestDimensions, ignored -> {
Map<String, Object> dimensions = createConnectorDimensions(listenPort, connectorName);
dimensions.put(JettyHttpServer.Metrics.METHOD_DIMENSION, method);
dimensions.put(JettyHttpServer.Metrics.SCHEME_DIMENSION, scheme);
return metric.createContext(dimensions);
});
}
public static JDiscServerConnector fromRequest(ServletRequest request) {
return (JDiscServerConnector) request.getAttribute(REQUEST_ATTRIBUTE);
}
ConnectorConfig connectorConfig() {
return config;
}
int listenPort() {
return listenPort;
}
private static Map<String, Object> createConnectorDimensions(int listenPort, String connectorName) {
Map<String, Object> props = new HashMap<>();
props.put(JettyHttpServer.Metrics.NAME_DIMENSION, connectorName);
props.put(JettyHttpServer.Metrics.PORT_DIMENSION, listenPort);
return props;
}
private static class RequestDimensions {
final String method;
final String scheme;
RequestDimensions(String method, String scheme) {
this.method = method;
this.scheme = scheme;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RequestDimensions that = (RequestDimensions) o;
return Objects.equals(method, that.method) && Objects.equals(scheme, that.scheme);
}
@Override
public int hashCode() {
return Objects.hash(method, scheme);
}
}
}
|
