import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;

public final class Allocators {
    private static class NoopGatewayAllocator extends GatewayAllocator {
        public static final NoopGatewayAllocator INSTANCE = new NoopGatewayAllocator();

        @Override

        int numIndices = toInt(params[0]);
        int numShards = toInt(params[1]);
        int numReplicas = toInt(params[2]);
        int numNodes = toInt(params[3]);

        strategy = Allocators.createAllocationService(
            Settings.builder().put("cluster.routing.allocation.awareness.attributes", "tag").build()
        );

        Metadata.Builder mb = Metadata.builder();

- KEP-1880: Users of the new feature to add multiple service CIDR will use by default a dual-write strategy on the new ClusterIP allocators to avoid the problem of possible duplicate IPs allocated to Services when running skewed kube-apiservers using different allocators. They can opt-out of this behavior by enabled the feature gate DisableAllocatorDualWrite. ([#122047](https://github.com/kubernetes/kubernetes/pull/122047), [@aojea](https://github.com/aojea))...

- Fix a bug in the kube-apiserver where a malformed Service without name can cause high CPU usage. The bug is present on the new Cluster IP allocators enabled with the feature MultiCIDRServiceAllocator (enabled by default since 1.33)


## Dependencies

### Added
- cyphar.com/go-pathrs: v0.2.1

  Notes:
  1. Only the first two CIDRs are used (soft limits for Alpha, might be lifted later on).
  2. Only the "RangeAllocator" (default) is allowed as a value for `--cidr-allocator-type`. Cloud allocators are not compatible with IPv6 dual stack
     ([#73977](https://github.com/kubernetes/kubernetes/pull/73977), [@khenidak](https://github.com/khenidak))

- Added a new IPAddress object kind

- New feature gate, ServiceIPStaticSubrange, to enable the new strategy in the Service IP allocators, so the IP range is subdivided and dynamic allocated ClusterIP addresses for Services are allocated preferently from the upper range. ([#106792](https://github.com/kubernetes/kubernetes/pull/106792), [@aojea](https://github.com/aojea))

    * It is intended to supersede the logic that is currently in range_allocator
    * and cloud_cidr_allocator. (ALPHA FEATURE)
    * Note: for this change, the other allocators still exist and are the default.
    * It supports two modes:
        * CIDR range allocations done within the cluster that are then propagated out to the cloud provider.

    * It is intended to supersede the logic that is currently in range_allocator
    * and cloud_cidr_allocator. (ALPHA FEATURE)
    * Note: for this change, the other allocators still exist and are the default.
    * It supports two modes:
        * CIDR range allocations done within the cluster that are then propagated out to the cloud provider.

    @Override
    public void apply(Project project) {
        AvailablePortAllocator allocator = project.getRootProject()
            .getPlugins()
            .apply(InternalAvailableTcpPortProviderRootPlugin.class).allocator;
        ReservedPortRange portRange = allocator.reservePortRange();
        project.getExtensions().add("portRange", portRange);
    }