private void updateSourceJar()

in tomee-patch-plugin/src/main/java/org/apache/tomee/patch/plugin/PatchMojo.java [337:373]
28 lines of code
3 McCabe index (conditional complexity)

    private void updateSourceJar() throws IOException {
        final List<Artifact> attachedArtifacts = this.project.getAttachedArtifacts();
        final List<File> sourceJars = attachedArtifacts.stream()
                .filter(Artifact::hasClassifier)
                .filter(artifact -> "sources".equals(artifact.getClassifier()))
                .filter(artifact -> "java-source".equals(artifact.getType()))
                .map(Artifact::getFile)
                .collect(Collectors.toList());

        Files.mkdir(patchSourceJarsDirectory);

        for (final File sourceJar : sourceJars) {
            final File extractedZip = new File(patchClasspathDirectory, sourceJar.getName() + ".extracted");
            Files.mkdir(extractedZip);
            Zips.unzip(sourceJar, extractedZip);

            copySource(patchSourceDirectory, extractedZip);

            getLog().info("Patching " + sourceJar.getName());

            final File patchedSourceJar = new File(patchClasspathDirectory, sourceJar.getName() + ".patched");

            try (final ZipOutputStream zipOutputStream = new ZipOutputStream(IO.write(patchedSourceJar))) {
                final List<File> files = Dir.from(extractedZip).files().collect(Collectors.toList());

                final int beginIndex = extractedZip.getAbsolutePath().length() + 1;

                for (File file : files) {
                    final String relativeFileName = file.getAbsolutePath().substring(beginIndex);
                    zipOutputStream.putNextEntry(new ZipEntry(relativeFileName));
                    zipOutputStream.write(IO.readBytes(file));
                }
            }

            IO.copy(patchedSourceJar, sourceJar);
        }
    }