public static boolean isEmpty(Node node, boolean doFilter) {
return node == null
|| node.nodeName().equals("#comment")
|| node.nodeName().equals("#data")
|| node.nodeName().equals("style")
|| node.nodeName().equals("script")
|| isHidden(node)
|| (doFilter && isFiltered(node))
|| (node.nodeName().equals("#text") && CommonUtil.isEmpty(node.toString(), true));
}
public static boolean isResultFiltered(
Result result, String[] whitelist, String[] patterns, HtmlNode[] urlNodes) {
return UrlUtil.isUrlFiltered(
null,
result.url,
CommonUtil.parseFragment(result.urlNode, false),
whitelist,
patterns,
urlNodes,
null);
}
public static boolean matches(HtmlNode reference, Node test) {
if (test == null) {
return false;
}
if (!CommonUtil.isEmpty(reference.id)) {
return reference.id.equalsIgnoreCase(test.attr("id"));
}
if (!CommonUtil.isEmpty(reference.name)) {
return reference.name.equalsIgnoreCase(test.attr("name"));
}
List<String[]> toMatch = new ArrayList<String[]>();
toMatch.add(new String[] {reference.tagName, test.nodeName()});
toMatch.add(new String[] {reference.type, test.attr("type")});
toMatch.add(new String[] {reference.value, test.attr("value")});
toMatch.add(new String[] {reference.title, test.attr("title")});
toMatch.add(new String[] {reference.role, test.attr("role")});
toMatch.add(new String[] {reference.alt, test.attr("alt")});
toMatch.add(new String[] {reference.href, test.attr("href")});
if (test instanceof Element) {
toMatch.add(
new String[] {
CommonUtil.strip(reference.innerText, false),
CommonUtil.strip(((Element) test).text(), false)
});
}
String refClassesString = CommonUtil.toString(reference.classes, " ");
Collection<String> refClasses =
new HashSet<String>(Arrays.asList(refClassesString.toLowerCase().split("\\s")));
Collection<String> testClasses =
new HashSet<String>(Arrays.asList(test.attr("class").toLowerCase().split("\\s")));
for (String[] pair : toMatch) {
if (reference.any) {
if (!CommonUtil.isEmpty(pair[0]) && pair[0].equalsIgnoreCase(pair[1])) {
return true;
}
} else {
if (!CommonUtil.isEmpty(pair[0]) && !pair[0].equalsIgnoreCase(pair[1])) {
return false;
}
}
}
if (!refClasses.isEmpty()) {
for (String testClass : testClasses) {
if (reference.any) {
if (refClasses.contains(testClass)) {
return true;
}
} else {
if (!refClasses.contains(testClass)) {
return false;
}
}
}
}
return !reference.any;
}
static String classId(Node node) {
if (node != null) {
String className = node.attr("class");
if (!CommonUtil.isEmpty(className)) {
Matcher matcher = nodeMarker.matcher(className);
if (matcher.find()) {
return matcher.group(0);
}
}
}
return null;
}
public static Document clean(String string, String url) {
Document doc = CommonUtil.parse(string, url, false);
NodeUtil.clean(doc.childNodes());
return doc;
}