content: package org.openstack4j.openstack.gbp.internal;
  
  import org.openstack4j.api.gbp.NatPoolService;
  import org.openstack4j.model.common.ActionResponse;
  import org.openstack4j.model.gbp.NatPool;
  import org.openstack4j.openstack.gbp.domain.GbpNatPool;
  import org.openstack4j.openstack.gbp.domain.GbpNatPool.NatPools;
  import org.openstack4j.openstack.networking.internal.BaseNetworkingServices;
  
  import java.util.List;
  import java.util.Map;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  /**
   * Nat Pool API Implementation
   *
   * @author vinod borole
   */
  public class NatPoolServiceImpl extends BaseNetworkingServices implements NatPoolService {
  
      /**
       * {@inheritDoc}
       */
      @Override
      public List<? extends NatPool> list() {
          return get(NatPools.class, uri("/grouppolicy/nat_pools")).execute().getList();
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public List<? extends NatPool> list(Map<String, String> filteringParams) {
          Invocation<NatPools> natpoolInvocation = buildInvocation(filteringParams);
          return natpoolInvocation.execute().getList();
      }
  
      private Invocation<NatPools> buildInvocation(Map<String, String> filteringParams) {
          Invocation<NatPools> natpoolInvocation = get(NatPools.class, "/grouppolicy/nat_pools");
          if (filteringParams == null) {
              return natpoolInvocation;
          }
          if (filteringParams != null) {
              for (Map.Entry<String, String> entry : filteringParams.entrySet()) {
                  natpoolInvocation = natpoolInvocation.param(entry.getKey(), entry.getValue());
              }
          }
          return natpoolInvocation;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public NatPool get(String id) {
          checkNotNull(id);
          return get(GbpNatPool.class, uri("/grouppolicy/nat_pools/%s", id)).execute();
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public ActionResponse delete(String id) {
          checkNotNull(id);
          return deleteWithResponse(uri("/grouppolicy/nat_pools/%s", id)).execute();
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public NatPool create(NatPool natpool) {
          return post(GbpNatPool.class, uri("/grouppolicy/nat_pools")).entity(natpool).execute();
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public NatPool update(String natpoolId, NatPool natpool) {
          checkNotNull(natpoolId);
          checkNotNull(natpool);
          return put(GbpNatPool.class, uri("/grouppolicy/nat_pools/%s", natpoolId)).entity(natpool).execute();
      }
  
  
  }
  