| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.location.suppliers; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | |
| 23 | import java.net.URI; |
| 24 | import java.util.Map; |
| 25 | import java.util.Set; |
| 26 | |
| 27 | import javax.inject.Inject; |
| 28 | import javax.inject.Singleton; |
| 29 | |
| 30 | import org.jclouds.domain.Location; |
| 31 | import org.jclouds.domain.LocationBuilder; |
| 32 | import org.jclouds.domain.LocationScope; |
| 33 | import org.jclouds.location.Iso3166; |
| 34 | import org.jclouds.location.Provider; |
| 35 | import org.jclouds.location.Region; |
| 36 | |
| 37 | import com.google.common.collect.ImmutableSet; |
| 38 | import com.google.common.collect.Iterables; |
| 39 | import com.google.common.collect.ImmutableSet.Builder; |
| 40 | |
| 41 | /** |
| 42 | * |
| 43 | * @author Adrian Cole |
| 44 | */ |
| 45 | @Singleton |
| 46 | public class RegionToProviderOrJustProvider extends JustProvider { |
| 47 | private final Set<String> regions; |
| 48 | private final Map<String, Set<String>> isoCodesById; |
| 49 | |
| 50 | @Inject |
| 51 | public RegionToProviderOrJustProvider(@Iso3166 Set<String> isoCodes, @Provider String providerName, |
| 52 | @Provider URI endpoint, @Region Set<String> regions, @Iso3166 Map<String, Set<String>> isoCodesById) { |
| 53 | super(isoCodes, providerName, endpoint); |
| 54 | this.regions = checkNotNull(regions, "regions"); |
| 55 | this.isoCodesById = checkNotNull(isoCodesById, "isoCodesById"); |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public Set<? extends Location> get() { |
| 60 | return buildJustProviderOrRegions().build(); |
| 61 | } |
| 62 | |
| 63 | protected Builder<Location> buildJustProviderOrRegions() { |
| 64 | Builder<Location> locations = ImmutableSet.builder(); |
| 65 | Location provider = Iterables.getOnlyElement(super.get()); |
| 66 | if (regions.size() == 0) |
| 67 | return locations.add(provider); |
| 68 | else |
| 69 | for (String region : regions) { |
| 70 | LocationBuilder builder = new LocationBuilder().scope(LocationScope.REGION).id(region).description(region) |
| 71 | .parent(provider); |
| 72 | if (isoCodesById.containsKey(region)) |
| 73 | builder.iso3166Codes(isoCodesById.get(region)); |
| 74 | locations.add(builder.build()); |
| 75 | } |
| 76 | return locations; |
| 77 | } |
| 78 | |
| 79 | } |