}

    private static boolean hasStrongOpinion(NodeState node) {
        for (EdgeState edgeState : node.getIncomingEdges()) {
            if (edgeState.getSelector().hasStrongOpinion()) {
                return true;
            }
        }
        return false;
    }

        }

        @Override
        public void listModuleVersions(ModuleDependencyMetadata dependency, BuildableModuleVersionListingResolveResult result) {
            ModuleIdentifier identifier = dependency.getSelector().getModuleIdentifier();
            whenModulePresent(identifier, null,
                    () -> delegate.listModuleVersions(dependency, result),
                    () -> result.listed(Collections.emptyList()));
        }

	ctx.ForEach(gvk.Gateway, func(r *resource.Instance) bool {
		gw := r.Message.(*v1alpha3.Gateway)
		gwName := r.Metadata.FullName.String()

		gwSelector := klabels.SelectorFromSet(gw.GetSelector())
		sGWSelector := gwSelector.String()
		for _, server := range gw.GetServers() {
			sPortNumber := strconv.Itoa(int(server.GetPort().GetNumber()))
			mapKey := genGatewayMapKey(sGWSelector, sPortNumber)

        }
        for (final String l : supportedLanguages) {
            if (l.equals(lang)) {
                return l;
            }
        }
        return null;
    }

    public void setDetector(final LanguageDetector detector) {
        this.detector = detector;
    }

    public Script createScript(final Map<String, Object> doc, final String code) {
        final StringBuilder buf = new StringBuilder(100);

    }

    static IvyArtifactName getPrimaryDependencyArtifact(ModuleDependencyMetadata dependency) {
        String moduleName = dependency.getSelector().getModule();
        List<IvyArtifactName> artifacts = dependency.getArtifacts();
        if (artifacts.isEmpty()) {
            return new DefaultIvyArtifactName(moduleName, "jar", "jar");
        }

    }

    @Override
    public String toString() {
        return "dependency: " + selector + " to-conf: " + dependencyConfiguration;
    }

    @Override
    public ComponentSelector getSelector() {
        return selector;
    }

    @Override
    public GraphVariantSelectionResult selectVariants(
        GraphVariantSelector variantSelector,
        ImmutableAttributes consumerAttributes,

        !accept("[1.0]", "1")
        !accept("[1.0]", "1.01")
        !accept("[1.0]", "0.9")
        !accept("[1.0]", "1.0-beta1")
    }

    @Override
    VersionSelector getSelector(String selector) {
        return new VersionRangeSelector(selector, new DefaultVersionComparator().asVersionComparator(), new VersionParser())
    }

                getArtifacts() >> []
            }
            getExclusions() >> Mock(ExcludeSpec)
            getAttributes() >> ImmutableAttributes.EMPTY
            getSelector() >> Mock(DependencyGraphSelector) {
                getRequested() >> Mock(ComponentSelector) {
                    getRequestedCapabilities() >> []
                }
            }
        }

    private Version versionOf(@Nullable VersionSelector selector) {
        if (!(selector instanceof ExactVersionSelector)) {
            return emptyVersion;
        }
        return versionParser.transform(selector.getSelector());
    }

    public int size() {
        return selectors.size();
    }

    @Nullable
    public T first() {
        if (size() == 0) {
            return null;
        }

        List<IvyDependencyDescriptor> transformed = CollectionUtils.collect(getDependencies(), dependency -> {
            ModuleComponentSelector selector = dependency.getSelector();
                String dynamicConstraintVersion = dependency.getDynamicConstraintVersion();