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// Copyright 2019 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.jdisc.jrt;
import com.google.inject.Inject;
import com.yahoo.jdisc.Metric;
import com.yahoo.jrt.Supervisor;
import com.yahoo.jrt.TransportMetrics;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;
import java.util.WeakHashMap;
/**
* Propagates JRT metric values ({@link TransportMetrics} to {@link Metric}.
*
* @author bjorncs
*/
public class JrtMetricsUpdater {
private final Object monitor = new Object();
private final Timer timer = new Timer("jrt-metrics-updater", true);
private final Map<TransportMetrics, Metric.Context> transportMetricsInstances = new WeakHashMap<>();
private final Metric metric;
@Inject
public JrtMetricsUpdater(Metric metric) {
this.metric = metric;
timer.scheduleAtFixedRate(new UpdaterTask(), /*delay ms*/0, /*period ms*/10_000);
}
public void register(Supervisor supervisor) {
register(supervisor, null);
}
public void register(Supervisor supervisor, Map<String, ?> dimensions) {
synchronized (monitor) {
this.transportMetricsInstances.put(supervisor.transport().metrics(), metric.createContext(dimensions));
}
}
public void deregister(Supervisor supervisor) {
synchronized (monitor) {
this.transportMetricsInstances.remove(supervisor.transport().metrics());
}
}
public void stop() {
timer.cancel();
synchronized (monitor) {
this.transportMetricsInstances.clear();
}
}
private class UpdaterTask extends TimerTask {
@Override
public void run() {
synchronized (monitor) {
transportMetricsInstances.forEach((instance, context) -> {
metric.add("jrt.transport.tls-certificate-verification-failures", instance.tlsCertificateVerificationFailures(), context);
metric.add("jrt.transport.peer-authorization-failures", instance.peerAuthorizationFailures(), context);
metric.add("jrt.transport.server.tls-connections-established", instance.serverTlsConnectionsEstablished(), context);
metric.add("jrt.transport.client.tls-connections-established", instance.clientTlsConnectionsEstablished(), context);
metric.add("jrt.transport.server.unencrypted-connections-established", instance.serverUnencryptedConnectionsEstablished(), context);
metric.add("jrt.transport.client.unencrypted-connections-established", instance.clientUnencryptedConnectionsEstablished(), context);
});
}
}
}
}
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