// @todo(dallison) handle rtl text
private static void recurseNode(Node node, StringBuilder builder) {
// boundry case for text
if (node instanceof TextNode) {
builder.append(((TextNode) node).text());
builder.append(" ");
return;
}
// check for title text
if (node.hasAttr(TITLE)) {
builder.append(node.attr(TITLE));
builder.append(" ");
}
// if the current node has alt text append it
if (node.hasAttr(ALT_TEXT)) {
builder.append(node.attr(ALT_TEXT));
// Add trailing white space to separate elements
builder.append(" ");
}
// recurse into the child nodes.
for (Node child : node.childNodes()) {
recurseNode(child, builder);
}
}
boolean unlikely(Node e) {
if (e.attr("class") != null
&& e.attr("class").toLowerCase(Locale.getDefault()).contains("caption")) return true;
String style = e.attr("style");
String clazz = e.attr("class");
return unlikelyPattern.matcher(style).find() || unlikelyPattern.matcher(clazz).find();
}
private void checkFormFields(PageCompilingContext pc, Node element) {
if (null == pc.form) return;
String action = pc.form.attr("action");
// Only look at contextual uris (i.e. hosted by us).
// TODO - relative, not starting with '/'
if (null == action || (!action.startsWith("/"))) return;
final PageBook.Page page = pageBook.get(action);
// Only look at pages we actually have registered.
if (null == page) {
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(line(element))
.causedBy(CompileErrors.UNRESOLVABLE_FORM_ACTION));
return;
}
// If we're inside a form do a throw-away compile against the target page.
if ("input".equals(element.nodeName()) || "textarea".equals(element.nodeName())) {
String name = element.attr("name");
// Skip submits and buttons.
if (skippable(element.attr("type"))) return;
// TODO Skip empty?
if (null == name) {
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(line(element))
.causedBy(CompileErrors.FORM_MISSING_NAME));
return;
}
// Compile expression path.
try {
new MvelEvaluatorCompiler(page.pageClass()).compile(name);
} catch (ExpressionCompileException e) {
// TODO Very hacky, needed to strip out xmlns attribution.
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(element.siblingIndex()) // TODO - line number
.causedBy(CompileErrors.UNRESOLVABLE_FORM_BINDING, e));
}
}
}
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;
}
private void checkUriConsistency(PageCompilingContext pc, Node element) {
String uriAttrib = element.attr("action");
if (null == uriAttrib) uriAttrib = element.attr("src");
if (null == uriAttrib) uriAttrib = element.attr("href");
if (null != uriAttrib) {
// Verify that such a uri exists in the page book,
// only if it is contextual--ignore abs & relative URIs.
if (uriAttrib.startsWith("/"))
if (null == pageBook.nonCompilingGet(uriAttrib))
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(element.siblingIndex()) // TODO - line number
.causedBy(CompileErrors.UNRESOLVABLE_FORM_ACTION, uriAttrib));
}
}
/** Called to push a new lexical scope onto the stack. */
private boolean lexicalClimb(PageCompilingContext pc, Node node) {
if (node.attr(ANNOTATION).length() > 1) {
// Setup a new lexical scope (symbol table changes on each scope encountered).
if (REPEAT_WIDGET.equalsIgnoreCase(node.attr(ANNOTATION_KEY))
|| CHOOSE_WIDGET.equalsIgnoreCase(node.attr(ANNOTATION_KEY))) {
String[] keyAndContent = {node.attr(ANNOTATION_KEY), node.attr(ANNOTATION_CONTENT)};
pc.lexicalScopes.push(new MvelEvaluatorCompiler(parseRepeatScope(pc, keyAndContent, node)));
return true;
}
// Setup a new lexical scope for compiling against embedded pages (closures).
final PageBook.Page embed = pageBook.forName(node.attr(ANNOTATION_KEY));
if (null != embed) {
final Class<?> embedClass = embed.pageClass();
MvelEvaluatorCompiler compiler = new MvelEvaluatorCompiler(embedClass);
checkEmbedAgainst(
pc, compiler, Parsing.toBindMap(node.attr(ANNOTATION_CONTENT)), embedClass, node);
pc.lexicalScopes.push(compiler);
return true;
}
}
return false;
}
static void markVisible(Node node) {
if (node != null) {
if (node.nodeName().equals("select")) {
node.traverse(
new NodeVisitor() {
@Override
public void tail(Node n, int d) {}
@Override
public void head(Node n, int d) {
n.attr("class", hiddenMarker.matcher(n.attr("class")).replaceAll(""));
}
});
}
node.attr("class", hiddenMarker.matcher(node.attr("class")).replaceAll(""));
markVisible(node.parent());
}
}
// hit when the node is first seen
public void head(Node node, int depth) {
String name = node.nodeName();
if (name.equals("li")) append('\n');
else if (node.toString().startsWith("<select")) {
append1("[SELECT]");
append(tab);
} else if (node.outerHtml().startsWith("<option")) {
// append1(node.attr("value")+":");append1(" ");
TextNodeVisitor textVisitor = new TextNodeVisitor();
node.traverse(textVisitor);
append1("{" + textVisitor.toString() + "}");
} else if (node.outerHtml().startsWith("<input")) {
if (node.attr("type").equals("input")) append1("[INPUT]" + node.attr("maxLength"));
} else if (node.outerHtml().startsWith("<span")) {
TextNodeVisitor textVisitor = new TextNodeVisitor();
node.traverse(textVisitor);
append1(":" + textVisitor.toString() + " ");
}
}
static void markFiltered(Node node, final boolean lenient) {
if (lenient) {
if (!isFilteredLenient(node)) {
node.attr("class", node.attr("class") + " " + FILTERED_LENIENT_MARKER + " ");
}
} else {
node.traverse(
new NodeVisitor() {
@Override
public void tail(Node n, int d) {}
@Override
public void head(Node n, int d) {
if (!isFiltered(n)) {
n.attr("class", n.attr("class") + " " + FILTERED_MARKER + " ");
}
}
});
}
}
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;
}
private static String cleanHtml(final Node node) {
if (node instanceof Element) {
Element element = ((Element) node);
StringBuilder accum = new StringBuilder();
accum.append("<").append(element.tagName());
for (Attribute attribute : element.attributes()) {
if (!(attribute.getKey().startsWith("_"))) {
accum.append(" ");
accum.append(attribute.getKey());
accum.append("=\"");
accum.append(attribute.getValue());
accum.append('"');
}
}
if (element.childNodes().isEmpty() && element.tag().isEmpty()) {
accum.append(" />");
} else {
accum.append(">");
for (Node child : element.childNodes()) accum.append(cleanHtml(child));
accum.append("</").append(element.tagName()).append(">");
}
return accum.toString();
} else if (node instanceof TextNode) {
return ((TextNode) node).getWholeText();
} else if (node instanceof XmlDeclaration) {
// HACK
if (node.childNodes().isEmpty()) {
return "";
}
return node.outerHtml();
} else if (node instanceof Comment) {
// HACK: elide comments for now.
return "";
} else if (node instanceof DataNode && node.childNodes().isEmpty()) {
// No child nodes are defined but we have to handle content if such exists, example
// <script language="JavaScript">var a = { name: "${user.name}"}</script>
String content = node.attr("data");
if (Strings.empty(content)) {
return "";
}
return content;
} else {
return node.outerHtml();
}
}
private static int line(Node node) {
return Integer.valueOf(node.attr(LINE_NUMBER_ATTRIBUTE));
}
/**
* Set an attribute value on this element. If this element already has an attribute with the key,
* its value is updated; otherwise, a new attribute is added.
*
* @return this element
*/
public Element attr(String attributeKey, String attributeValue) {
super.attr(attributeKey, attributeValue);
return this;
}
protected ArrayList<Event> parseMonthPage(Document doc) {
ArrayList<Event> events = new ArrayList<Event>();
String query = "div#content.mw-body div#bodyContent div#mw-content-text.mw-content-ltr";
for (int i = 1; i <= 31; i++) {
query = query + " div#" + i + "_May_2005";
Elements days = doc.select(query);
for (Element eachday : days) { // This will loop only once because it is the whole text
String actualDate = null;
String modifiedDate =
eachday.attr(
"id"); // This is essential to do because wikipedia present dates in weird manner
// and if we want to faciliate search using dates in our database then they
// should be present in this format YYYY-MM-DD
int firstoccur = modifiedDate.indexOf("_");
String year = modifiedDate.substring(firstoccur + 5, firstoccur + 9);
String day = modifiedDate.substring(0, 2).replace('_', ' ').trim();
if (day.length() == 1) {
day = "0" + day;
}
actualDate = year + "-05-" + day;
try {
Date.valueOf(actualDate);
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
Elements individual = eachday.children();
for (Element dateplustext :
individual) { // This consists of alternate date and events (with or withour newsStory)
if (dateplustext.tagName().equals("ul")) {
// Complete news under a given date
Elements stories =
dateplustext
.children(); // This contains different stories (newsStory may be present or
// not)
for (Element li : stories) {
Elements uls =
li
.children(); // These are either <a> tags if it doesn't have a newsStory or it
// is <a> and <ul> tag if it contains a newsStory
boolean hasUL = false;
for (Element ul : uls) {
if (ul.tagName()
.equals("ul")) { // If li has ul then it implies that it contains a news story
hasUL = true; // news story is there
Node storyNode =
li.childNode(
0); // this the story .. it is used later at the end for each event
Elements eventsNodes =
ul
.children(); // Now we get inside the ul element which containd different
// li elements
for (Element eventNode : eventsNodes) { // Here we are picking one li
Event event = extractDescriptionAndLinks(eventNode);
try {
event.setDate(Date.valueOf(actualDate));
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
// News story
if (!storyNode.attr("title").isEmpty() && !storyNode.attr("href").isEmpty()) {
if (isValidWikiURL(storyNode.attr("href"))) {
Story story = new Story();
// story.setName(st.attr("title"));
story.setName(getEntityName(storyNode.attr("href")));
story.setWikipediaUrl(getEntityURL(storyNode.attr("href")));
event.setStory(story);
}
}
events.add(event);
}
}
}
if (!hasUL) { // event does not have a story
Event event = extractDescriptionAndLinks(li);
try {
event.setDate(Date.valueOf(actualDate));
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
events.add(event);
}
}
}
}
}
}
return events;
}
public static boolean isHidden(Node node) {
return node.attr("class").indexOf(HIDDEN_MARKER) > -1;
}
private static boolean isFiltered(Node node) {
return node.attr("class").indexOf(FILTERED_MARKER) > -1;
}
public static boolean isFilteredLenient(Node node) {
return node.attr("class").indexOf(FILTERED_MARKER) > -1
|| node.attr("class").indexOf(FILTERED_LENIENT_MARKER) > -1;
}
public boolean isMainDiv(Node node) {
return node instanceof Element
&& node.nodeName().equals("div")
&& node.hasAttr("class")
&& node.attr("class").contains("v-app");
}
