private void createArchive()

in src/main/java/org/apache/sling/feature/maven/mojos/AttachFeatureArchivesMojo.java [147:203]
46 lines of code
9 McCabe index (conditional complexity)

    private void createArchive(final List<Feature> features, final String classifier, final String type, final boolean attach) throws MojoExecutionException {
        final ArtifactId archiveId = features.get(0).getId().changeClassifier(classifier).changeType(type);

        // write the feature model archive
        final File outputFile = new File(
                this.project.getBuild().getDirectory().concat(File.separator).concat(archiveId.toMvnName()));
        outputFile.getParentFile().mkdirs();

        getLog().info("Creating feature archive " + outputFile.getName());
        try ( final FileOutputStream fos = new FileOutputStream(outputFile);
              final JarOutputStream jos = ArchiveWriter.write(fos,
                        createBaseManifest(features.size() == 1 ? features.get(0) : null), id -> {

                        try {
                            return ProjectHelper.getOrResolveArtifact(project, mavenSession, artifactHandlerManager,
                                    repoSystem, id).getFile().toURI().toURL();
                        } catch (final MalformedURLException e) {
                            getLog().debug("Malformed url " + e.getMessage(), e);
                            // ignore
                            return null;
                        }
                    }
                        , features.toArray(new Feature[features.size()]))) {

            // handle license etc.
            final File classesDir = new File(this.project.getBuild().getOutputDirectory());
            if ( classesDir.exists() ) {
                final File metaInfDir = new File(classesDir, "META-INF");
                for(final String name : new String[] {"LICENSE", "NOTICE", "DEPENDENCIES"}) {
                    final File f = new File(metaInfDir, name);
                    if ( f.exists() ) {
                        final JarEntry artifactEntry = new JarEntry("META-INF/" + name);
                        jos.putNextEntry(artifactEntry);

                        final byte[] buffer = new byte[8192];
                        try (final InputStream is = new FileInputStream(f)) {
                            int l = 0;
                            while ( (l = is.read(buffer)) > 0 ) {
                                jos.write(buffer, 0, l);
                            }
                        }
                        jos.closeEntry();

                    }
                }
            }
            jos.finish();
        } catch (final IOException e) {
            throw new MojoExecutionException(
                    "Unable to write feature model archive to " + outputFile + " : " + e.getMessage(), e);
        }

        if ( attach ) {
            // attach it as an additional artifact
            projectHelper.attachArtifact(project, archiveId.getType(), archiveId.getClassifier(), outputFile);
        }
    }