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1   /*
2    * The MIT License (MIT)
3    *
4    * Copyright (c) 2013 - 2023, Tapio Rautonen
5    *
6    * Permission is hereby granted, free of charge, to any person obtaining a copy
7    * of this software and associated documentation files (the "Software"), to deal
8    * in the Software without restriction, including without limitation the rights
9    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10   * copies of the Software, and to permit persons to whom the Software is
11   * furnished to do so, subject to the following conditions:
12   *
13   * The above copyright notice and this permission notice shall be included in
14   * all copies or substantial portions of the Software.
15   *
16   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22   * THE SOFTWARE.
23   */
24  package org.eluder.coveralls.maven.plugin.util;
25  
26  import java.io.File;
27  import java.util.ArrayList;
28  import java.util.Iterator;
29  
30  public class ExistingFiles implements Iterable<File> {
31  
32      private final ArrayList<File> delegate = new ArrayList<>();
33  
34      public ExistingFiles addAll(final Iterable<File> files) {
35          if (files == null) {
36              throw new NullPointerException("Files must be defined");
37          }
38          for (File file : files) {
39              add(file);
40          }
41          return this;
42      }
43  
44      public ExistingFiles add(final File file) {
45          if (file == null) {
46              throw new NullPointerException("File must be defined");
47          }
48          if (file.exists() && file.isFile() && !delegate.contains(file)) {
49              delegate.add(file);
50          }
51          return this;
52      }
53  
54      @Override
55      public Iterator<File> iterator() {
56          return delegate.iterator();
57      }
58  
59      public static ExistingFiles create(final Iterable<File> files) {
60          ExistingFiles existingFiles = new ExistingFiles();
61          if (files != null) {
62              existingFiles.addAll(files);
63          }
64          return existingFiles;
65      }
66  }