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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.trmk.vcloud_0_8.config;
20  
21  import static com.google.common.base.Preconditions.checkNotNull;
22  import static com.google.common.base.Preconditions.checkState;
23  import static org.jclouds.trmk.vcloud_0_8.reference.VCloudConstants.PROPERTY_VCLOUD_DEFAULT_VDC;
24  
25  import java.util.Map;
26  
27  import javax.inject.Inject;
28  import javax.inject.Singleton;
29  
30  import org.jclouds.config.ValueOfConfigurationKeyOrNull;
31  import org.jclouds.trmk.vcloud_0_8.domain.Org;
32  import org.jclouds.trmk.vcloud_0_8.domain.ReferenceType;
33  import org.jclouds.trmk.vcloud_0_8.endpoints.VDC;
34  import org.jclouds.trmk.vcloud_0_8.suppliers.OnlyReferenceTypeFirstWithNameMatchingConfigurationKeyOrDefault;
35  
36  import com.google.common.base.Function;
37  import com.google.common.base.Predicate;
38  import com.google.common.base.Supplier;
39  
40  /**
41   * 
42   * @author Adrian Cole
43   */
44  @Singleton
45  public class DefaultVDCForOrg implements Function<ReferenceType, ReferenceType> {
46     private final OnlyReferenceTypeFirstWithNameMatchingConfigurationKeyOrDefault selector;
47     private final Supplier<Map<String, ? extends Org>> nameToOrg;
48  
49     @Inject
50     public DefaultVDCForOrg(ValueOfConfigurationKeyOrNull valueOfConfigurationKeyOrNull,
51           @VDC Predicate<ReferenceType> defaultSelector, Supplier<Map<String, ? extends Org>> nameToOrg) {
52        this.selector = new OnlyReferenceTypeFirstWithNameMatchingConfigurationKeyOrDefault(checkNotNull(
53              valueOfConfigurationKeyOrNull, "valueOfConfigurationKeyOrNull"), PROPERTY_VCLOUD_DEFAULT_VDC, checkNotNull(
54              defaultSelector, "defaultSelector"));
55        this.nameToOrg = checkNotNull(nameToOrg, "nameToOrg");
56     }
57  
58     @Override
59     public ReferenceType apply(ReferenceType defaultOrg) {
60        org.jclouds.trmk.vcloud_0_8.domain.Org org = nameToOrg.get().get(defaultOrg.getName());
61        checkState(org != null, "could not retrieve Org at %s", defaultOrg);
62        return selector.apply(org.getVDCs().values());
63     }
64  
65  }