Package org.jclouds.openstack.neutron.v2_0.functions

Source Code of org.jclouds.openstack.neutron.v2_0.functions.ParseSubnets

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jclouds.openstack.neutron.v2_0.functions;

import com.google.common.annotations.Beta;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.inject.TypeLiteral;
import org.jclouds.collect.IterableWithMarker;
import org.jclouds.collect.internal.Arg0ToPagedIterable;
import org.jclouds.http.functions.ParseJson;
import org.jclouds.json.Json;
import org.jclouds.openstack.v2_0.domain.PaginatedCollection;
import org.jclouds.openstack.neutron.v2_0.NeutronApi;
import org.jclouds.openstack.neutron.v2_0.domain.ReferenceWithName;
import org.jclouds.openstack.neutron.v2_0.features.SubnetApi;
import org.jclouds.openstack.neutron.v2_0.functions.ParseSubnets.Subnets;
import org.jclouds.openstack.v2_0.domain.Link;
import org.jclouds.openstack.v2_0.options.PaginationOptions;

import javax.inject.Inject;
import javax.inject.Singleton;
import java.beans.ConstructorProperties;

import static com.google.common.base.Preconditions.checkNotNull;

/**
* @author Nick Livens
*/
@Beta
@Singleton
public class ParseSubnets extends ParseJson<Subnets> {
   static class Subnets extends PaginatedCollection<ReferenceWithName> {

      @ConstructorProperties({ "subnets", "subnets_links" })
      protected Subnets(Iterable<ReferenceWithName> subnets, Iterable<Link> subnets_links) {
         super(subnets, subnets_links);
      }

   }

   @Inject
   public ParseSubnets(Json json) {
      super(json, TypeLiteral.get(Subnets.class));
   }

   public static class ToPagedIterable extends Arg0ToPagedIterable.FromCaller<ReferenceWithName, ToPagedIterable> {

      private final NeutronApi api;

      @Inject
      protected ToPagedIterable(NeutronApi api) {
         this.api = checkNotNull(api, "api");
      }

      @Override
      protected Function<Object, IterableWithMarker<ReferenceWithName>> markerToNextForArg0(Optional<Object> arg0) {
         String zone = arg0.isPresent() ? arg0.get().toString() : null;
         final SubnetApi subnetApi = api.getSubnetApiForZone(zone);
         return new Function<Object, IterableWithMarker<ReferenceWithName>>() {

            @SuppressWarnings("unchecked")
            @Override
            public IterableWithMarker<ReferenceWithName> apply(Object input) {
               PaginationOptions paginationOptions = PaginationOptions.class.cast(input);
               return IterableWithMarker.class.cast(subnetApi.list(paginationOptions));
            }

            @Override
            public String toString() {
               return "list()";
            }
         };
      }

   }

}
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