public static void createSymbolicLink()

in bigtop-manager-stack/bigtop-manager-stack-core/src/main/java/org/apache/bigtop/manager/stack/core/utils/linux/LinuxFileUtils.java [308:336]

• 26 lines of code
• 7 McCabe index (conditional complexity)

    public static void createSymbolicLink(String target, String source) {
        if (StringUtils.isBlank(target) || StringUtils.isBlank(source)) {
            log.error("target, source must not be null");
            return;
        }

        Path targetPath = Paths.get(target);
        Path sourcePath = Paths.get(source);

        try {
            log.info("Creating symbolic link: [{}] -> [{}]", target, source);
            if (Files.exists(targetPath)) {
                if (Files.isSymbolicLink(targetPath)) {
                    Path existingSourcePath = Files.readSymbolicLink(targetPath);
                    if (!existingSourcePath.equals(sourcePath)) {
                        throw new IOException(
                                "Symbolic link already exists and points to a different source: " + existingSourcePath);
                    }
                } else {
                    throw new IOException("Target path exists and is not a symbolic link: " + target);
                }
            }

            Files.createSymbolicLink(targetPath, sourcePath);
        } catch (IOException e) {
            log.error("Error when create symbolic link", e);
            throw new StackException(e);
        }
    }