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1   /**
2    * Portions of this software was developed by employees of the National Institute
3    * of Standards and Technology (NIST), an agency of the Federal Government and is
4    * being made available as a public service. Pursuant to title 17 United States
5    * Code Section 105, works of NIST employees are not subject to copyright
6    * protection in the United States. This software may be subject to foreign
7    * copyright. Permission in the United States and in foreign countries, to the
8    * extent that NIST may hold copyright, to use, copy, modify, create derivative
9    * works, and distribute this software and its documentation without fee is hereby
10   * granted on a non-exclusive basis, provided that this notice and disclaimer
11   * of warranty appears in all copies.
12   *
13   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
14   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
15   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
16   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
17   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
18   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
19   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
20   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
21   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
22   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
23   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
24   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
25   */
26  
27  package gov.nist.secauto.swid.builder.resource.file;
28  
29  import gov.nist.secauto.swid.builder.resource.ResourceBuilder;
30  import gov.nist.secauto.swid.builder.resource.ResourceCollectionEntryGenerator;
31  
32  import java.util.Collections;
33  import java.util.LinkedHashMap;
34  import java.util.LinkedList;
35  import java.util.List;
36  import java.util.Map;
37  import java.util.stream.Collectors;
38  
39  public class DirectoryBuilder extends AbstractFileSystemItemBuilder<DirectoryBuilder> {
40    private Map<String, DirectoryBuilder> directoryMap = new LinkedHashMap<>();
41    private List<ResourceBuilder> resources = new LinkedList<>();
42  
43    @Override
44    public void reset() {
45      super.reset();
46    }
47  
48    public static DirectoryBuilder create() {
49      return new DirectoryBuilder();
50    }
51  
52    @Override
53    public <T> void accept(T parentContext, ResourceCollectionEntryGenerator<T> creator) {
54      creator.generate(parentContext, this);
55    }
56  
57    /**
58     * Retrieves the child resources.
59     * 
60     * @return the resources
61     */
62    public List<ResourceBuilder> getResources() {
63      return Collections.unmodifiableList(resources);
64    }
65  
66    /**
67     * Retrieves the child resources that match the specified builder.
68     * 
69     * @param <T>
70     *          the type of builder to filter on
71     * @param clazz
72     *          the builder to filter on
73     * @return the matching resources
74     */
75    public <T extends ResourceBuilder> List<T> getResources(Class<T> clazz) {
76      @SuppressWarnings("unchecked")
77      List<? extends T> retval
78          = resources.stream().filter(e -> clazz.isInstance(e.getClass())).map(e -> (T) e).collect(Collectors.toList());
79      return Collections.unmodifiableList(retval);
80    }
81  
82    /**
83     * Retrieves or creates the named directory resource if it doesn't exist.
84     * 
85     * @param name
86     *          the directory name
87     * @return a directory resource
88     */
89    public DirectoryBuilder getDirectoryResource(String name) {
90      DirectoryBuilder retval = directoryMap.get(name);
91      if (retval == null) {
92        retval = DirectoryBuilder.create();
93        retval.name(name);
94        directoryMap.put(name, retval);
95        resources.add(retval);
96      }
97      return retval;
98    }
99  
100   /**
101    * Adds a new file resource to this directory.
102    * 
103    * @param filename
104    *          the file name to add
105    * @return the new FileBuilder
106    */
107   public FileBuilder newFileResource(String filename) {
108     FileBuilder retval = FileBuilder.create();
109     retval.name(filename);
110     resources.add(retval);
111     return retval;
112   }
113 
114 }