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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.vespa.hosted.controller.routing;
import java.time.Instant;
import java.util.Objects;
/**
* Represents the routing status of a {@link RoutingPolicy} or {@link ZoneRoutingPolicy}.
*
* This describes which agent last changed the routing status and at which time.
*
* This is immutable.
*
* @author mpolden
*/
public record RoutingStatus(Value value, Agent agent, Instant changedAt) {
public static final RoutingStatus DEFAULT = new RoutingStatus(Value.in, Agent.system, Instant.EPOCH);
/** DO NOT USE. Public for serialization purposes */
public RoutingStatus {
Objects.requireNonNull(value, "value must be non-null");
Objects.requireNonNull(agent, "agent must be non-null");
Objects.requireNonNull(changedAt, "changedAt must be non-null");
}
/**
* The wanted value of this. The system will try to set this value, but there are constraints that may lead to
* the effective value not matching this. See {@link RoutingPolicies}.
*/
public Value value() {
return value;
}
/** The agent who last changed this */
public Agent agent() {
return agent;
}
/** The time this was last changed */
public Instant changedAt() {
return changedAt;
}
@Override
public String toString() {
return "status " + value + ", changed by " + agent + " @ " + changedAt;
}
public static RoutingStatus create(Value value, Agent agent, Instant instant) {
return new RoutingStatus(value, agent, instant);
}
// Used in serialization. Do not change.
public enum Value {
/** Status is determined by health checks **/
in,
/** Status is explicitly set to out */
out,
}
/** Agents that can change the state of global routing */
public enum Agent {
operator,
tenant,
system,
unknown, // For compatibility old values from /routing/v1 on config server, which may contain a specific username.
}
}
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