/*
* 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.location.suppliers.all;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import java.util.Map;
import java.util.Set;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.domain.Location;
import org.jclouds.domain.LocationBuilder;
import org.jclouds.domain.LocationScope;
import org.jclouds.location.Iso3166;
import org.jclouds.location.Region;
import org.jclouds.location.suppliers.LocationsSupplier;
import com.google.common.base.Supplier;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSet.Builder;
import com.google.common.collect.Iterables;
/**
*
* @author Adrian Cole
*/
@Singleton
public class RegionToProvider implements LocationsSupplier {
private final JustProvider justProvider;
private final Supplier<Set<String>> regionsSupplier;
private final Supplier<Map<String, Supplier<Set<String>>>> isoCodesByIdSupplier;
@Inject
public RegionToProvider(JustProvider justProvider, @Region Supplier<Set<String>> regionsSupplier,
@Iso3166 Supplier<Map<String, Supplier<Set<String>>>> isoCodesByIdSupplier) {
this.justProvider = checkNotNull(justProvider, "justProvider");
this.regionsSupplier = checkNotNull(regionsSupplier, "regionsSupplier");
this.isoCodesByIdSupplier = checkNotNull(isoCodesByIdSupplier, "isoCodesByIdSupplier");
}
@Override
public Set<? extends Location> get() {
Builder<Location> locations = ImmutableSet.builder();
Location provider = Iterables.getOnlyElement(justProvider.get());
Set<String> regions = regionsSupplier.get();
checkState(regions.size() > 0, "no regions found for provider %s, using supplier %s", provider, regionsSupplier);
Map<String, Supplier<Set<String>>> isoCodesById = isoCodesByIdSupplier.get();
for (String region : regions) {
LocationBuilder builder = new LocationBuilder().scope(LocationScope.REGION).id(region).description(region)
.parent(provider);
if (isoCodesById.containsKey(region))
builder.iso3166Codes(isoCodesById.get(region).get());
locations.add(builder.build());
}
return locations.build();
}
}