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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.api.integration.dns;
import ai.vespa.http.DomainName;
import com.yahoo.config.provision.zone.ZoneId;
import java.util.Objects;
/**
* An implementation of {@link AliasTarget} that uses latency-based routing.
*
* @author mpolden
*/
public final class LatencyAliasTarget extends AliasTarget {
static final String TARGET_TYPE = "latency";
private final ZoneId zone;
public LatencyAliasTarget(DomainName name, String dnsZone, ZoneId zone) {
super(name, dnsZone, zone.value());
this.zone = Objects.requireNonNull(zone);
}
/** The zone this record points to */
public ZoneId zone() {
return zone;
}
@Override
public RecordData pack() {
return RecordData.from(String.join("/", TARGET_TYPE, name().value(), dnsZone(), id()));
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
if (!super.equals(o)) return false;
LatencyAliasTarget that = (LatencyAliasTarget) o;
return zone.equals(that.zone);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), zone);
}
@Override
public String toString() {
return "latency target for " + name() + " [id=" + id() + ",dnsZone=" + dnsZone() + "]";
}
/** Unpack latency alias from given record data */
public static LatencyAliasTarget unpack(RecordData data) {
var parts = data.asString().split("/");
if (parts.length != 4) {
throw new IllegalArgumentException("Expected data to be on format type/name/DNS-zone/zone-id, but got " +
data.asString());
}
if (!TARGET_TYPE.equals(parts[0])) {
throw new IllegalArgumentException("Unexpected type '" + parts[0] + "'");
}
return new LatencyAliasTarget(DomainName.of(parts[1]), parts[2], ZoneId.from(parts[3]));
}
}
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