public Map<String, String> getChildUrlRuleMap() {
        return childUrlRuleMap;
    }

    /**
     * Sets the map of child URL extraction rules.
     *
     * @param childUrlRuleMap the child URL rule map to set
     */
    public void setChildUrlRuleMap(final Map<String, String> childUrlRuleMap) {
        this.childUrlRuleMap = childUrlRuleMap;
    }

    /**
     * Gets the default character encoding.

        final Map<String, String> childUrlRuleMap = newHashMap();
        childUrlRuleMap.put("//A", "href");
        childUrlRuleMap.put("//AREA", "href");
        childUrlRuleMap.put("//FRAME", "src");
        childUrlRuleMap.put("//IFRAME", "src");
        childUrlRuleMap.put("//IMG", "src");
        childUrlRuleMap.put("//LINK", "href");
        childUrlRuleMap.put("//SCRIPT", "src");

        final String baseHref = getBaseHref(document);
        try {
            final URI uri = getBaseUri(responseData.getUrl(), baseHref);
            for (final Map.Entry<String, String> entry : childUrlRuleMap.entrySet()) {
                for (final String u : getUrlFromTagAttribute(uri, document, entry.getKey(), entry.getValue(), responseData.getCharSet())) {