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1   /*-
2    * #%L
3    * io.earcam.instrumental.archive.jpms
4    * %%
5    * Copyright (C) 2018 earcam
6    * %%
7    * SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
8    * 
9    * You <b>must</b> choose to accept, in full - any individual or combination of 
10   * the following licenses:
11   * <ul>
12   * 	<li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
13   * 	<li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
14   * 	<li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
15   * 	<li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
16   * </ul>
17   * #L%
18   */
19  package io.earcam.instrumental.archive.jpms.auto;
20  
21  import static io.earcam.unexceptional.Exceptional.uncheckFunction;
22  import static java.util.stream.Collectors.toList;
23  
24  import java.util.Arrays;
25  import java.util.Collections;
26  import java.util.List;
27  import java.util.Optional;
28  import java.util.jar.JarInputStream;
29  
30  import io.earcam.instrumental.archive.Archive;
31  import io.earcam.instrumental.module.jpms.ModuleInfo;
32  
33  public final class ArchivePackageModuleMapper extends AbstractPackageModuleMapper {
34  
35  	private final List<ModuleInfo> modules;
36  
37  
38  	private ArchivePackageModuleMapper(List<ModuleInfo> modules)
39  	{
40  		this.modules = Collections.unmodifiableList(modules);
41  	}
42  
43  
44  	public static ArchivePackageModuleMapper fromArchives(Archive... archives)
45  	{
46  		return fromArchives(Arrays.asList(archives));
47  	}
48  
49  
50  	public static ArchivePackageModuleMapper fromArchives(List<Archive> archives)
51  	{
52  		List<ModuleInfo> modules = archives.stream()
53  				.map(Archive::toInputStream)
54  				.map(uncheckFunction(JarInputStream::new))
55  				.map(uncheckFunction(ModuleInfo::extract))
56  				.filter(Optional::isPresent)
57  				.map(Optional::get)
58  				.collect(toList());
59  
60  		// TODO above is inefficient, should first check if archive
61  		// contains module-info.class, and if so, just read that
62  
63  		return new ArchivePackageModuleMapper(modules);
64  	}
65  
66  
67  	@Override
68  	protected List<ModuleInfo> modules()
69  	{
70  		return modules;
71  	}
72  }