private static String getRelativePath()

in src/main/java/org/apache/cxf/cwiki/ConfluenceCleanupWriter.java [416:443]

• 23 lines of code
• 5 McCabe index (conditional complexity)

    private static String getRelativePath(File root, File current, File other) throws Exception {
        if (current.equals(other)) {
            return "";
        }
        
        String rootPath = root.getCanonicalPath();
        String currentPath = current.getCanonicalPath();
        StringBuilder builder = new StringBuilder();
        while (!rootPath.equals(currentPath)) {
            current = current.getParentFile();
            currentPath = current.getCanonicalPath();
            builder.append("../");
        }
        
        String otherPath = other.getCanonicalPath();
        
        if (rootPath.equals(otherPath)) {
            // nothing to do
        } else if (otherPath.startsWith(rootPath)) {
            String name = otherPath.substring(rootPath.length() + 1);
            builder.append(name);
            builder.append("/");
        } else {
            throw new RuntimeException("Non-relative locations: " + rootPath + " " + otherPath);
        }       
        
        return builder.toString();
    }