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// Copyright Vespa.ai. 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 jakarta.servlet.ServletRequest;
import jakarta.servlet.http.HttpServletRequest;
import org.eclipse.jetty.io.ConnectionStatistics;
import org.eclipse.jetty.server.ConnectionFactory;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author bjorncs
*/
class JDiscServerConnector extends ServerConnector {
public static final String REQUEST_ATTRIBUTE = JDiscServerConnector.class.getName();
private final Metric.Context metricCtx;
private final ConnectionStatistics statistics;
private final ConnectorConfig config;
private final Metric metric;
private final String connectorName;
private final int listenPort;
private final List<String> knownServerNames;
JDiscServerConnector(ConnectorConfig config, Metric metric, Server server, JettyConnectionLogger connectionLogger,
ConnectionMetricAggregator connectionMetricAggregator, ConnectionFactory... factories) {
super(server, factories);
this.config = config;
this.metric = metric;
this.connectorName = config.name();
this.listenPort = config.listenPort();
this.metricCtx = metric.createContext(createConnectorDimensions(listenPort, connectorName, 0));
this.knownServerNames = List.copyOf(config.serverName().known());
this.statistics = new ConnectionStatistics();
setAcceptedTcpNoDelay(config.tcpNoDelay());
addBean(statistics);
ConnectorConfig.Throttling throttlingConfig = config.throttling();
if (throttlingConfig.enabled()) {
new ConnectionThrottler(this, throttlingConfig).registerWithConnector();
}
addBean(connectionLogger);
addBean(connectionMetricAggregator);
setPort(config.listenPort());
setName(config.name());
setAcceptQueueSize(config.acceptQueueSize());
setReuseAddress(config.reuseAddress());
setIdleTimeout((long) (config.idleTimeout() * 1000));
}
public ConnectionStatistics getStatistics() {
return statistics;
}
public Metric.Context getConnectorMetricContext() {
return metricCtx;
}
public Metric.Context createRequestMetricContext(HttpServletRequest request, Map<String, String> extraDimensions) {
String method = request.getMethod();
String scheme = request.getScheme();
boolean clientAuthenticated = request.getAttribute(RequestUtils.SERVLET_REQUEST_X509CERT) != null;
Map<String, Object> dimensions = createConnectorDimensions(listenPort, connectorName, extraDimensions.size() + 5);
dimensions.put(MetricDefinitions.METHOD_DIMENSION, method);
dimensions.put(MetricDefinitions.SCHEME_DIMENSION, scheme);
dimensions.put(MetricDefinitions.CLIENT_AUTHENTICATED_DIMENSION, Boolean.toString(clientAuthenticated));
dimensions.put(MetricDefinitions.PROTOCOL_DIMENSION, request.getProtocol());
String serverName = knownServerNames.stream().filter(name -> name.equalsIgnoreCase(request.getServerName())).findFirst().orElse("unknown");
dimensions.put(MetricDefinitions.REQUEST_SERVER_NAME_DIMENSION, serverName);
dimensions.putAll(extraDimensions);
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, int reservedSize) {
Map<String, Object> props = new HashMap<>(reservedSize + 2);
props.put(MetricDefinitions.NAME_DIMENSION, connectorName);
props.put(MetricDefinitions.PORT_DIMENSION, listenPort);
return props;
}
}
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