public static Optional findNativeImageExecutable()

in atomos.utils/atomos.utils.substrate.impl/src/main/java/org/apache/felix/atomos/utils/substrate/impl/NativeImageCliUtil.java [105:159]

52 lines of code
11 McCabe index (conditional complexity)


    public static Optional<Path> findNativeImageExecutable(final Path path)
    {
        if (path == null)
        {
            Optional<Path> oExec = findNativeImageExecutable(Paths.get(EXECUTABLE));
            if (oExec.isPresent())
            {
                return oExec;
            }
            if (System.getenv(GRAALVM_HOME) != null)
            {
                oExec = findNativeImageExecutable(Paths.get(System.getenv(GRAALVM_HOME)));
                if (oExec.isPresent())
                {
                    return oExec;
                }
            }
            if (System.getProperty(JAVA_HOME) != null)
            {
                oExec = findNativeImageExecutable(
                    Paths.get(System.getProperty(JAVA_HOME)));
                if (oExec.isPresent())
                {
                    return oExec;
                }
            }
            return Optional.empty();
        }
        else if (!Files.exists(path))
        {
            return Optional.empty();
        }
        else if (Files.isDirectory(path))
        {
            final Optional<Path> candidate = findNativeImageExecutable(
                path.resolve(EXECUTABLE));
            if (candidate.isPresent())
            {
                return candidate;
            }
            return findNativeImageExecutable(path.resolve("bin"));
        }
        else //file o
        {

            final String version = getVersion(path);
            if (version != null)
            {
                return Optional.of(path);
            }

        }
        return Optional.empty();

    }