public boolean orderBefore()

in src/main/java/org/apache/sling/resourceresolver/impl/helper/ResourceResolverControl.java [472:507]
35 lines of code
7 McCabe index (conditional complexity)

    public boolean orderBefore(
            @NotNull final ResourceResolverContext context,
            @NotNull final Resource parent,
            @NotNull final String name,
            @Nullable final String followingSiblingName)
            throws UnsupportedOperationException, PersistenceException, IllegalArgumentException {
        final AuthenticatedResourceProvider provider = getBestMatchingModifiableProvider(context, parent.getPath());
        if (provider != null) {
            // make sure all children are from the same provider and both names are valid
            AuthenticatedResourceProvider childProvider =
                    getBestMatchingModifiableProvider(context, createDescendantPath(parent.getPath(), name));
            if (childProvider == null) {
                throw new IllegalArgumentException(
                        "The given name '" + name + "' is not a valid child name in resource " + parent.getPath());
            }
            if (provider != childProvider) {
                throw new UnsupportedOperationException("orderBefore '" + name + "' at " + parent.getPath()
                        + " not supported as children are not provided by the same provider as the parent resource");
            }
            if (followingSiblingName != null) {
                childProvider = getBestMatchingModifiableProvider(
                        context, createDescendantPath(parent.getPath(), followingSiblingName));
                if (childProvider == null) {
                    throw new IllegalArgumentException("The given name '" + followingSiblingName
                            + "' is not a valid child name in resource " + parent.getPath());
                }
                if (provider != childProvider) {
                    throw new UnsupportedOperationException(
                            "orderBefore '" + name + "', '" + followingSiblingName + "' at " + parent.getPath()
                                    + " not supported as sibling child resources are not provided by the same provider");
                }
            }
            return provider.orderBefore(parent, name, followingSiblingName);
        }
        throw new UnsupportedOperationException("orderBefore '" + name + "' at " + parent.getPath());
    }