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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.vespa.hosted.controller.api.integration.dns;
import ai.vespa.http.DomainName;
import java.util.Objects;
/**
* The target of a {@link Record.Type#ALIAS} record. Contains record fields unique to aliases.
*
* @author mpolden
*/
public sealed abstract class AliasTarget permits LatencyAliasTarget, WeightedAliasTarget {
private final DomainName name;
private final String dnsZone;
private final String id;
public AliasTarget(DomainName name, String dnsZone, String id) {
this.name = Objects.requireNonNull(name, "name must be non-null");
this.dnsZone = Objects.requireNonNull(dnsZone, "dnsZone must be non-null");
this.id = Objects.requireNonNull(id, "id must be non-null");
}
/** A unique identifier of this record within the ALIAS record group */
public String id() {
return id;
}
/** DNS name this points to */
public final DomainName name() {
return name;
}
/** The DNS zone this belongs to */
public final String dnsZone() {
return dnsZone;
}
/** Returns the fields in this encoded as record data */
public abstract RecordData pack();
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
AliasTarget alias = (AliasTarget) o;
return name.equals(alias.name) &&
dnsZone.equals(alias.dnsZone) &&
id.equals(alias.id);
}
@Override
public int hashCode() {
return Objects.hash(name, dnsZone, id);
}
/** Unpack target from given record data */
public static AliasTarget unpack(RecordData data) {
String[] parts = data.asString().split("/");
return switch (parts[0]) {
case LatencyAliasTarget.TARGET_TYPE -> LatencyAliasTarget.unpack(data);
case WeightedAliasTarget.TARGET_TYPE -> WeightedAliasTarget.unpack(data);
default -> throw new IllegalArgumentException("Unknown alias type '" + parts[0] + "'");
};
}
}
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