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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.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.RecordData;
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;
/**
* Permanently removes all matching records by type and matching either:
*
* - name and data
* - only name
*
* @author mpolden
*/
public class RemoveRecords extends AbstractNameServiceRequest {
private final Record.Type type;
private final Optional<RecordData> data;
public RemoveRecords(Optional<TenantAndApplicationId> owner, Record.Type type, RecordName name) {
this(owner, type, name, Optional.empty());
}
public RemoveRecords(Optional<TenantAndApplicationId> owner, Record.Type type, RecordName name, RecordData data) {
this(owner, type, name, Optional.of(data));
}
/** DO NOT USE. Public for serialization purposes */
public RemoveRecords(Optional<TenantAndApplicationId> owner, Record.Type type, RecordName name, Optional<RecordData> data) {
super(owner, name);
this.type = Objects.requireNonNull(type, "type must be non-null");
this.data = Objects.requireNonNull(data, "data must be non-null");
}
public Record.Type type() {
return type;
}
public Optional<RecordData> data() {
return data;
}
@Override
public void dispatchTo(NameService nameService) {
// Deletions require all records fields to match exactly, data may be incomplete even if present. To ensure
// completeness we search for the record(s) first
List<Record> completeRecords = nameService.findRecords(type, name()).stream()
.filter(record -> data.isEmpty() || matchingFqdnIn(data.get(), record))
.toList();
nameService.removeRecords(completeRecords);
}
@Override
public String toString() {
return "remove records of type " + type + ", by name " + name() +
data.map(d -> " data " + d).orElse("");
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RemoveRecords that = (RemoveRecords) o;
return owner().equals(that.owner()) && type == that.type && name().equals(that.name()) && data.equals(that.data);
}
@Override
public int hashCode() {
return Objects.hash(owner(), type, name(), data);
}
private static boolean matchingFqdnIn(RecordData data, Record record) {
String dataValue = switch (record.type()) {
case ALIAS -> AliasTarget.unpack(record.data()).name().value();
case DIRECT -> DirectTarget.unpack(record.data()).recordData().asString();
default -> record.data().asString();
};
return fqdn(dataValue).equals(fqdn(data.asString()));
}
private static String fqdn(String name) {
return name.endsWith(".") ? name : name + ".";
}
}
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