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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.dns;
import com.yahoo.vespa.hosted.controller.api.integration.dns.AliasTarget;
import com.yahoo.vespa.hosted.controller.api.integration.dns.DirectTarget;
import com.yahoo.vespa.hosted.controller.api.integration.dns.NameService;
import com.yahoo.vespa.hosted.controller.api.integration.dns.Record;
import com.yahoo.vespa.hosted.controller.api.integration.dns.RecordName;
import com.yahoo.vespa.hosted.controller.application.TenantAndApplicationId;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* Create or update multiple records of the same type and name.
*
* @author mpolden
*/
public class CreateRecords extends AbstractNameServiceRequest {
private final Record.Type type;
private final List<Record> records;
/** DO NOT USE. Public for serialization purposes */
public CreateRecords(Optional<TenantAndApplicationId> owner, List<Record> records) {
super(owner, requireOneOf(Record::name, records));
this.type = requireOneOf(Record::type, records);
this.records = List.copyOf(Objects.requireNonNull(records, "records must be non-null"));
if (type != Record.Type.ALIAS && type != Record.Type.TXT && type != Record.Type.DIRECT) {
throw new IllegalArgumentException("Records of type " + type + " are not supported: " + records);
}
}
public List<Record> records() {
return records;
}
@Override
public void dispatchTo(NameService nameService) {
switch (type) {
case ALIAS -> {
var targets = records.stream().map(Record::data).map(AliasTarget::unpack).collect(Collectors.toSet());
nameService.createAlias(name(), targets);
}
case DIRECT -> {
var targets = records.stream().map(Record::data).map(DirectTarget::unpack).collect(Collectors.toSet());
nameService.createDirect(name(), targets);
}
case TXT -> {
var dataFields = records.stream().map(Record::data).toList();
nameService.createTxtRecords(name(), dataFields);
}
}
}
@Override
public String toString() {
return "create records " + records();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
CreateRecords that = (CreateRecords) o;
return owner().equals(that.owner()) && records.equals(that.records);
}
@Override
public int hashCode() {
return Objects.hash(owner(), records);
}
/** Find exactly one distinct value of field in given list */
private static <T, V> T requireOneOf(Function<V, T> field, List<V> list) {
Set<T> values = list.stream().map(field).collect(Collectors.toSet());
if (values.size() != 1) {
throw new IllegalArgumentException("Expected one distinct value, but found " + values + " in " + list);
}
return values.iterator().next();
}
}
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