IgnoreVariableAttributesDifferenceListener.java

public class IgnoreVariableAttributesDifferenceListener implements
        DifferenceListener {

    private static final List<String> IGNORE_ATTRS = Arrays
            .asList(new String[] { "version", "download-size", "install-size" });

    @Override
    public int differenceFound(Difference difference) {
        if (isIgnoredAttributeDifference(difference)) {
            return RETURN_IGNORE_DIFFERENCE_NODES_SIMILAR;
        } else {
            return RETURN_ACCEPT_DIFFERENCE;
        }
    }

    @Override
    public void skippedComparison(Node control, Node test) {
        // nothing to do
    }

    private boolean isIgnoredAttributeDifference(Difference difference) {
        return difference.getId() == DifferenceConstants.ATTR_VALUE_ID
                && IGNORE_ATTRS.contains(difference.getControlNodeDetail()
                        .getNode().getNodeName());
    }

}