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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.vcloud.functions;
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.NoSuchElementException;
26  
27  import javax.inject.Inject;
28  import javax.inject.Singleton;
29  
30  import org.jclouds.vcloud.domain.CatalogItem;
31  import org.jclouds.vcloud.domain.ReferenceType;
32  import org.jclouds.vcloud.endpoints.Catalog;
33  import org.jclouds.vcloud.endpoints.Org;
34  
35  import com.google.common.base.Function;
36  import com.google.common.base.Supplier;
37  import com.google.common.collect.Iterables;
38  
39  /**
40   * 
41   * @author Adrian Cole
42   */
43  @Singleton
44  public class OrgNameCatalogNameVAppTemplateNameToEndpoint implements Function<Object, URI> {
45     private final Supplier<Map<String, Map<String, Map<String, ? extends org.jclouds.vcloud.domain.CatalogItem>>>> orgCatalogItemMap;
46     private final ReferenceType defaultOrg;
47     private final ReferenceType defaultCatalog;
48  
49     @Inject
50     public OrgNameCatalogNameVAppTemplateNameToEndpoint(
51              Supplier<Map<String, Map<String, Map<String, ? extends org.jclouds.vcloud.domain.CatalogItem>>>> orgCatalogItemMap,
52              @Org ReferenceType defaultOrg, @Catalog ReferenceType defaultCatalog) {
53        this.orgCatalogItemMap = orgCatalogItemMap;
54        this.defaultOrg = defaultOrg;
55        this.defaultCatalog = defaultCatalog;
56     }
57  
58     @SuppressWarnings("unchecked")
59     public URI apply(Object from) {
60        Iterable<Object> orgCatalog = (Iterable<Object>) checkNotNull(from, "args");
61        Object org = Iterables.get(orgCatalog, 0);
62        Object catalog = Iterables.get(orgCatalog, 1);
63        Object catalogItem = Iterables.get(orgCatalog, 2);
64        if (org == null)
65           org = defaultOrg.getName();
66        if (catalog == null)
67           catalog = defaultCatalog.getName();
68        Map<String, Map<String, Map<String, ? extends CatalogItem>>> orgCatalogItemMap = this.orgCatalogItemMap.get();
69  
70        if (!orgCatalogItemMap.containsKey(org))
71           throw new NoSuchElementException("org: " + org + " not found in " + orgCatalogItemMap.keySet());
72        Map<String, Map<String, ? extends CatalogItem>> catalogs = orgCatalogItemMap.get(org);
73  
74        if (!catalogs.containsKey(catalog))
75           throw new NoSuchElementException("catalog: " + org + "/" + catalog + " not found in " + catalogs.keySet());
76        Map<String, ? extends CatalogItem> catalogMap = catalogs.get(catalog);
77  
78        if (!catalogMap.containsKey(catalogItem))
79           throw new NoSuchElementException("item: " + org + "/" + catalog + "/" + catalogItem + " not found in "
80                    + catalogMap.keySet());
81        CatalogItem item = catalogMap.get(catalogItem);
82  
83        return checkNotNull(item.getEntity(), "item: " + org + "/" + catalog + "/" + catalogItem + " has no entity")
84                 .getHref();
85     }
86  
87  }