public static boolean tryGetSwtJar()

in core/src/main/java/com/microsoft/alm/auth/oauth/helper/SwtJarLoader.java [80:124]
33 lines of code
6 McCabe index (conditional complexity)

    public static boolean tryGetSwtJar(final AtomicReference<File> swtJarReference) {
        //precondition: swt runtime jar is not present on the system
        final String swtJarUrl = BASE_URL + jarName;
        logger.info("Downloading {}", swtJarUrl);

        try {
            final HttpURLConnection cloudSwtUrlConn = (HttpURLConnection) new URL(swtJarUrl).openConnection();
            final int statusCode = cloudSwtUrlConn.getResponseCode();
            if (statusCode != 200) {
                throw new IOException(String.format("Failed to download SWT Runtime jar from %s.  Server return code is " +
                        "%d", swtJarUrl, statusCode));
            }

            // Make sure the parent folder exists
            final File parent = targetSwtJar.getParentFile();
            if (parent != null && !parent.exists()) {
                parent.mkdirs();
            }

            targetSwtJar.createNewFile();
            final FileOutputStream fos = new FileOutputStream(targetSwtJar);
            final InputStream is = cloudSwtUrlConn.getInputStream();

            IOHelper.copyStream(is, fos);

            IOHelper.closeQuietly(is);
            IOHelper.closeQuietly(fos);

            if (isValid(targetSwtJar)) {
                swtJarReference.set(targetSwtJar);
                return true;
            } else {
                // if target jar is corrupted, cleanup
                cleanup(targetSwtJar);
            }

        } catch (IOException ioe) {
            logger.warn("Failed to download SWT Runtime jar.", ioe);
            // if we failed during downloading, remove partial file
            cleanup(targetSwtJar);
        }

        swtJarReference.set(null);
        return false;
    }