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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.config.provision.zone;
import com.yahoo.config.provision.CloudName;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.RegionName;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
/**
* Provides filters for and access to a list of ZoneIds.
*
* This is typically offered after an initial filter from {@link ZoneFilter} has been applied.
* This forces the developer to consider which zones to process.
*
* @author jonmv
*/
public interface ZoneList extends ZoneFilter {
/** Negates the next filter. */
@Override
ZoneList not();
/** Zones in one of the given environments. */
ZoneList in(Environment... environments);
/** Zones in one of the given regions. */
ZoneList in(RegionName... regions);
/** Zones in one of the given clouds. */
ZoneList in(CloudName... clouds);
/** Only the given zones — combine with not() for best effect! */
ZoneList among(ZoneId... zones);
/** Zones where hosts are dynamically provisioned */
ZoneList dynamicallyProvisioned();
/** Zones where traffic is routed using given method */
ZoneList routingMethod(RoutingMethod method);
/** Returns the zone with the given id, if this exists. */
default Optional<? extends ZoneApi> get(ZoneId id) {
return among(id).zones().stream().findFirst();
}
/** Returns the ZoneApi of all zones in this list. */
List<? extends ZoneApi> zones();
/** Returns the ZoneIds of all zones in this list. */
default List<ZoneId> ids() {
return zones().stream().map(ZoneApi::getVirtualId).toList();
}
}
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