| 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 | import static com.google.common.collect.Maps.uniqueIndex; |
| 23 | |
| 24 | import java.net.URI; |
| 25 | import java.util.Map; |
| 26 | import java.util.Set; |
| 27 | |
| 28 | import javax.inject.Inject; |
| 29 | import javax.inject.Singleton; |
| 30 | |
| 31 | import org.jclouds.domain.Location; |
| 32 | import org.jclouds.domain.LocationBuilder; |
| 33 | import org.jclouds.domain.LocationScope; |
| 34 | import org.jclouds.location.Iso3166; |
| 35 | import org.jclouds.location.Provider; |
| 36 | import org.jclouds.location.Zone; |
| 37 | |
| 38 | import com.google.common.base.Function; |
| 39 | import com.google.common.collect.ImmutableMap; |
| 40 | import com.google.common.collect.ImmutableSet; |
| 41 | import com.google.common.collect.ImmutableSet.Builder; |
| 42 | |
| 43 | /** |
| 44 | * |
| 45 | * @author Adrian Cole |
| 46 | */ |
| 47 | @Singleton |
| 48 | public class ZoneToRegionToProviderOrJustProvider extends RegionToProviderOrJustProvider { |
| 49 | private final Map<String, String> zoneToRegion; |
| 50 | private Map<String, Set<String>> isoCodesById; |
| 51 | |
| 52 | @Inject |
| 53 | ZoneToRegionToProviderOrJustProvider(@Iso3166 Set<String> isoCodes, @Provider String providerName, |
| 54 | @Provider URI endpoint, @Iso3166 Map<String, Set<String>> isoCodesById, |
| 55 | @Zone Map<String, String> zoneToRegion) { |
| 56 | super(isoCodes, providerName, endpoint, ImmutableSet.copyOf(checkNotNull(zoneToRegion, "zoneToRegion").values()), |
| 57 | isoCodesById); |
| 58 | this.zoneToRegion = zoneToRegion; |
| 59 | this.isoCodesById = checkNotNull(isoCodesById, "isoCodesById"); |
| 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public Set<? extends Location> get() { |
| 64 | Builder<Location> locations = buildJustProviderOrRegions(); |
| 65 | ImmutableMap<String, Location> idToLocation = uniqueIndex(locations.build(), new Function<Location, String>() { |
| 66 | @Override |
| 67 | public String apply(Location from) { |
| 68 | return from.getId(); |
| 69 | } |
| 70 | }); |
| 71 | if (zoneToRegion.size() == 1) |
| 72 | return locations.build(); |
| 73 | for (String zone : zoneToRegion.keySet()) { |
| 74 | Location parent = idToLocation.get(zoneToRegion.get(zone)); |
| 75 | LocationBuilder builder = new LocationBuilder().scope(LocationScope.ZONE).id(zone).description(zone).parent( |
| 76 | parent); |
| 77 | if (isoCodesById.containsKey(zone)) |
| 78 | builder.iso3166Codes(isoCodesById.get(zone)); |
| 79 | // be cautious.. only inherit iso codes if the parent is a region |
| 80 | // regions may be added dynamically, and we prefer to inherit an |
| 81 | // empty set of codes from a region, then a provider, whose code |
| 82 | // are likely hard-coded. |
| 83 | else if (parent.getScope() == LocationScope.REGION) |
| 84 | builder.iso3166Codes(parent.getIso3166Codes()); |
| 85 | locations.add(builder.build()); |
| 86 | } |
| 87 | return locations.build(); |
| 88 | } |
| 89 | } |