org.jclouds.location.suppliers.SupplyPredefinedRegions.java Source code

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Here is the source code for org.jclouds.location.suppliers.SupplyPredefinedRegions.java

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
 *
 * ====================================================================
 * Licensed 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;

import java.net.URI;
import java.util.Set;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.domain.Location;
import org.jclouds.domain.LocationScope;
import org.jclouds.domain.internal.LocationImpl;
import org.jclouds.location.Provider;
import org.jclouds.location.Region;

import com.google.common.base.Supplier;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSet.Builder;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class SupplyPredefinedRegions implements Supplier<Set<? extends Location>> {
    private final Set<String> regions;
    private final String providerName;
    private final URI endpoint;

    @Inject
    SupplyPredefinedRegions(@Region Set<String> regions, @Provider String providerName, @Provider URI endpoint) {
        this.regions = regions;
        this.providerName = providerName;
        this.endpoint = endpoint;
    }

    @Override
    public Set<? extends Location> get() {
        Builder<Location> locations = ImmutableSet.builder();
        Location provider = new LocationImpl(LocationScope.PROVIDER, providerName, endpoint.toASCIIString(), null);
        for (String zone : regions) {
            locations.add(new LocationImpl(LocationScope.REGION, zone.toString(), zone.toString(), provider));
        }
        return locations.build();
    }
}