ArchivePackageModuleMapper.java
/*-
* #%L
* io.earcam.instrumental.archive.jpms
* %%
* Copyright (C) 2018 earcam
* %%
* SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
*
* You <b>must</b> choose to accept, in full - any individual or combination of
* the following licenses:
* <ul>
* <li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
* <li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
* <li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
* <li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
* </ul>
* #L%
*/
package io.earcam.instrumental.archive.jpms.auto;
import static io.earcam.unexceptional.Exceptional.uncheckFunction;
import static java.util.stream.Collectors.toList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.jar.JarInputStream;
import io.earcam.instrumental.archive.Archive;
import io.earcam.instrumental.module.jpms.ModuleInfo;
public final class ArchivePackageModuleMapper extends AbstractPackageModuleMapper {
private final List<ModuleInfo> modules;
private ArchivePackageModuleMapper(List<ModuleInfo> modules)
{
this.modules = Collections.unmodifiableList(modules);
}
public static ArchivePackageModuleMapper fromArchives(Archive... archives)
{
return fromArchives(Arrays.asList(archives));
}
public static ArchivePackageModuleMapper fromArchives(List<Archive> archives)
{
List<ModuleInfo> modules = archives.stream()
.map(Archive::toInputStream)
.map(uncheckFunction(JarInputStream::new))
.map(uncheckFunction(ModuleInfo::extract))
.filter(Optional::isPresent)
.map(Optional::get)
.collect(toList());
// TODO above is inefficient, should first check if archive
// contains module-info.class, and if so, just read that
return new ArchivePackageModuleMapper(modules);
}
@Override
protected List<ModuleInfo> modules()
{
return modules;
}
}