ClasspathBundles.java
/*-
* #%L
* io.earcam.instrumental.archive.osgi
* %%
* 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.osgi.auto;
import static io.earcam.instrumental.module.auto.Classpaths.allClasspaths;
import static io.earcam.instrumental.module.osgi.BundleManifestHeaders.BUNDLE_SYMBOLICNAME;
import static java.util.stream.Collectors.toList;
import java.io.IOException;
import java.nio.file.Path;
import java.util.List;
import java.util.Objects;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;
import io.earcam.instrumental.module.osgi.BundleInfo;
import io.earcam.instrumental.module.osgi.BundleInfoBuilder;
import io.earcam.unexceptional.Exceptional;
import io.earcam.utilitarian.io.ExplodedJarInputStream;
/**
* <p>
* Extract {@link BundleInfo}s from elements of the classpath.
* </p>
*/
public class ClasspathBundles extends AbstractPackageBundleMapper {
@Override
protected List<BundleInfo> bundles()
{
return allClasspaths()
.map(Exceptional.uncheckFunction(ClasspathBundles::bundleInfoFrom))
.filter(Objects::nonNull)
.collect(toList());
}
private static BundleInfo bundleInfoFrom(Path classpathElement) throws IOException
{
try(JarInputStream jin = ExplodedJarInputStream.jarInputStreamFrom(classpathElement)) {
Manifest manifest = jin.getManifest();
if(manifest == null || manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME.header()) == null) {
return null;
}
return BundleInfoBuilder.bundleFrom(manifest).construct();
}
}
}