public File handle()

in gshell/gshell-features/src/main/java/org/apache/servicemix/kernel/gshell/features/internal/FeatureDeploymentListener.java [111:158]
39 lines of code
3 McCabe index (conditional complexity)

    public File handle(File artifact, File tmpDir) {
        // We can't really install the feature right now and just return nothing.
        // We would not be aware of the fact that the bundle has been uninstalled
        // and therefore require the feature to be uninstalled.
        // So instead, create a fake bundle with the file inside, which will be listened by
        // this deployer: installation / uninstallation of the feature will be done
        // while the bundle is installed / uninstalled.
        try {
            File destFile = new File(tmpDir, artifact.getName() + ".jar");
            OutputStream os = new BufferedOutputStream(new FileOutputStream(destFile));

            String name = artifact.getCanonicalPath();
            int idx = name.lastIndexOf('/');
            if (idx >= 0) {
                name = name.substring(idx + 1);
            }
            String[] str = extractNameVersionType(name);
            // Create manifest
            Manifest m = new Manifest();
            m.getMainAttributes().putValue("Manifest-Version", "2");
            m.getMainAttributes().putValue(Constants.BUNDLE_MANIFESTVERSION, "2");
            m.getMainAttributes().putValue(Constants.BUNDLE_SYMBOLICNAME, str[0]);
            m.getMainAttributes().putValue(Constants.BUNDLE_VERSION, str[1]);
            // Put content
            JarOutputStream out = new JarOutputStream(os);
            ZipEntry e = new ZipEntry(JarFile.MANIFEST_NAME);
            out.putNextEntry(e);
            m.write(out);
            out.closeEntry();
            e = new ZipEntry("META-INF/");
            out.putNextEntry(e);
            e = new ZipEntry("META-INF/" + FEATURE_PATH + "/");
            out.putNextEntry(e);
            out.closeEntry();
            e = new ZipEntry("META-INF/" + FEATURE_PATH + "/" + name);
            out.putNextEntry(e);
            InputStream fis = new BufferedInputStream(new FileInputStream(artifact));
            copyInputStream(fis, out);
            fis.close();
            out.closeEntry();
            out.close();
            os.close();
            return destFile;
        } catch (Exception e) {
            LOGGER.error("Unable to build spring application bundle", e);
            return null;
        }
    }