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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.security.tls;
import java.util.concurrent.atomic.AtomicLong;
/**
* @author bjorncs
*/
public class TlsMetrics {
private static final TlsMetrics instance = new TlsMetrics();
private final AtomicLong capabilitiesSucceeded = new AtomicLong(0);
private final AtomicLong capabilitiesFailed = new AtomicLong(0);
private TlsMetrics() {}
public static TlsMetrics instance() { return instance; }
void incrementCapabilitiesSucceeded() { capabilitiesSucceeded.incrementAndGet(); }
void incrementCapabilitiesFailed() { capabilitiesFailed.incrementAndGet(); }
public Snapshot snapshot() { return new Snapshot(this); }
public record Snapshot(long capabilitiesSucceeded, long capabilitiesFailed) {
public static final Snapshot EMPTY = new Snapshot(0, 0);
private Snapshot(TlsMetrics m) { this(m.capabilitiesSucceeded.get(), m.capabilitiesFailed.get()); }
public Diff changesSince(Snapshot previous) { return new Diff(this, previous); }
}
public record Diff(long capabilitiesSucceeded, long capabilitiesFailed) {
private Diff(Snapshot current, Snapshot previous) {
this(current.capabilitiesSucceeded - previous.capabilitiesSucceeded,
current.capabilitiesFailed - previous.capabilitiesFailed);
}
}
}
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