private File copyIconToFolder()

in enricher/fabric8/src/main/java/io/fabric8/maven/enricher/fabric8/IconEnricher.java [179:222]
42 lines of code
12 McCabe index (conditional complexity)

    private File copyIconToFolder(String iconRef, File appBuildDir) throws IOException {
        if (Strings.isNotBlank(iconRef)) {
            File[] icons = appBuildDir.listFiles(new FilenameFilter() {
                @Override
                public boolean accept(File dir, String name) {
                    if (name == null) {
                        return false;
                    }
                    String lower = name.toLowerCase();
                    if (lower.startsWith("icon.")) {
                        for (String ext : ICON_EXTENSIONS) {
                            if (lower.endsWith(ext)) {
                                return true;
                            }
                        }
                    }
                    return false;
                }
            });
            if (icons == null || icons.length == 0) {
                // lets copy the iconRef
                InputStream in = loadPluginResource(iconRef);
                if (in == null) {
                    // maybe it dont have extension so try to find it
                    for (String ext : ICON_EXTENSIONS) {
                        String name = iconRef + ext;
                        in = loadPluginResource(name);
                        if (in != null) {
                            iconRef = name;
                            break;
                        }
                    }
                }
                if (in != null) {
                    String fileName = "icon." + Files.getFileExtension(iconRef);
                    File outFile = new File(appBuildDir, fileName);
                    Files.copy(in, new FileOutputStream(outFile));
                    log.info("Generated icon file " + outFile + " from icon reference: " + iconRef);
                    return outFile;
                }
            }
        }
        return null;
    }