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1   /*
2    * The MIT License (MIT)
3    *
4    * Copyright (c) 2013-2026 The Coveralls Maven Plugin Project Contributors:
5    *     https://github.com/hazendaz/coveralls-maven-plugin/graphs/contributors
6    *
7    * Permission is hereby granted, free of charge, to any person obtaining a copy
8    * of this software and associated documentation files (the "Software"), to deal
9    * in the Software without restriction, including without limitation the rights
10   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11   * copies of the Software, and to permit persons to whom the Software is
12   * furnished to do so, subject to the following conditions:
13   *
14   * The above copyright notice and this permission notice shall be included in
15   * all copies or substantial portions of the Software.
16   *
17   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23   * THE SOFTWARE.
24   */
25  package org.eluder.coveralls.maven.plugin.source;
26  
27  import java.io.IOException;
28  import java.util.ArrayList;
29  import java.util.List;
30  
31  import org.eluder.coveralls.maven.plugin.domain.Source;
32  
33  /**
34   * The Class MultiSourceLoader.
35   */
36  public class MultiSourceLoader implements SourceLoader {
37  
38      /** The source loaders. */
39      private final List<SourceLoader> sourceLoaders = new ArrayList<>();
40  
41      /**
42       * Instantiates a new multi source loader.
43       */
44      public MultiSourceLoader() {
45          // do nothing
46      }
47  
48      /**
49       * Adds the.
50       *
51       * @param sourceLoader
52       *            the source loader
53       *
54       * @return the multi source loader
55       */
56      public MultiSourceLoader add(final SourceLoader sourceLoader) {
57          this.sourceLoaders.add(sourceLoader);
58          return this;
59      }
60  
61      @Override
62      public Source load(final String sourceFile) throws IOException {
63          for (final SourceLoader sourceLoader : this.sourceLoaders) {
64              final var source = sourceLoader.load(sourceFile);
65              if (source != null) {
66                  return source;
67              }
68          }
69          throw new IOException("No source found for " + sourceFile);
70      }
71  }