private String convertIconFileToURL()

in enricher/fabric8/src/main/java/io/fabric8/maven/enricher/fabric8/IconEnricher.java [254:311]
54 lines of code
12 McCabe index (conditional complexity)

    private String convertIconFileToURL(File iconFile, String iconRef) throws IOException {
        long length = iconFile.length();

        int sizeK = Math.round(length / 1024);

        byte[] bytes = Files.readBytes(iconFile);
        byte[] encoded = Base64Encoder.encode(bytes);

        int base64SizeK = Math.round(encoded.length / 1024);

        if (base64SizeK < Configs.asInt(getConfig(Config.maximumDataUrlSizeK))) {
            String mimeType = guessMediaType(iconFile);
            return "data:" + mimeType + ";charset=UTF-8;base64," + new String(encoded);
        } else {
            File iconSourceFile = new File(appConfigDir, iconFile.getName());
            if (iconSourceFile.exists()) {
                File rootProjectFolder = getRootProjectFolder();
                if (rootProjectFolder != null) {
                    String relativePath = Files.getRelativePath(rootProjectFolder, iconSourceFile);
                    String relativeParentPath = Files.getRelativePath(rootProjectFolder, getProject().getBasedir());
                    String urlPrefix = getConfig(Config.urlPrefix);
                    if (Strings.isNullOrBlank(urlPrefix)) {
                        Scm scm = getProject().getScm();
                        if (scm != null) {
                            String url = scm.getUrl();
                            if (url != null) {
                                String[] prefixes = {"http://github.com/", "https://github.com/"};
                                for (String prefix : prefixes) {
                                    if (url.startsWith(prefix)) {
                                        url = URLUtils.pathJoin("https://cdn.rawgit.com/", url.substring(prefix.length()));
                                        break;
                                    }
                                }
                                if (url.endsWith(relativeParentPath)) {
                                    url = url.substring(0, url.length() - relativeParentPath.length());
                                }
                                urlPrefix = url;
                            }
                        }
                    }
                    if (Strings.isNullOrBlank(urlPrefix)) {
                        log.warn("No iconUrlPrefix defined or could be found via SCM in the pom.xml so cannot add an icon URL!");
                    } else {
                        String answer = URLUtils.pathJoin(urlPrefix, getConfig(Config.branch), relativePath);
                        return answer;
                    }
                }
            } else {
                String embeddedIcon = embeddedIconsInConsole(iconRef, "img/icons/");
                if (embeddedIcon != null) {
                    return embeddedIcon;
                } else {
                    log.warn("Cannot find url for icon to use %s", iconRef);
                }
            }
        }
        return null;
    }