org.jsoup.select.NodeVisitor Java Examples

/**
 * Perform a depth-first traversal through this node and its descendants.
 * @param nodeVisitor the visitor callbacks to perform on each node
 * @return this node, for chaining
 */
public Node traverse(NodeVisitor nodeVisitor) {
    Validate.notNull(nodeVisitor);
    NodeTraversor traversor = new NodeTraversor(nodeVisitor);
    traversor.traverse(this);
    return this;
}
 

/**
 * Perform a depth-first traversal through this node and its descendants.
 * @param nodeVisitor the visitor callbacks to perform on each node
 * @return this node, for chaining
 */
public Node traverse(NodeVisitor nodeVisitor) {
    Validate.notNull(nodeVisitor);
    NodeTraversor traversor = new NodeTraversor(nodeVisitor);
    traversor.traverse(this);
    return this;
}
 

public void search(IQuestion question, String language) throws Exception {
	String questionString;
	if (!question.getLanguageToQuestion().containsKey(language)) {
		return;
	}
	questionString = question.getLanguageToQuestion().get(language);
	log.debug(this.getClass().getSimpleName() + ": " + questionString);
	final HashSet<String> resultSet = new HashSet<String>();
	String url = "http://qakis.org/qakis/index.xhtml";

	RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(this.timeout).build();
	HttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(requestConfig).build();
	HttpPost httppost = new HttpPost(url);
	HttpResponse ping = client.execute(httppost);
	//Test if error occured
	if(ping.getStatusLine().getStatusCode()>=400){
		throw new Exception("QAKIS Server could not answer due to: "+ping.getStatusLine());
	}
	
	Document vsdoc = Jsoup.parse(responseparser.responseToString(ping));
	Elements el = vsdoc.select("input");
	String viewstate = (el.get(el.size() - 1).attr("value"));

	List<NameValuePair> formparams = new ArrayList<NameValuePair>();
	formparams.add(new BasicNameValuePair("index_form", "index_form"));
	formparams.add(new BasicNameValuePair("index_form:question",
			questionString));
	formparams.add(new BasicNameValuePair("index_form:eps", ""));
	formparams.add(new BasicNameValuePair("index_form:submitQuestion", ""));
	formparams.add(new BasicNameValuePair("javax.faces.ViewState",
			viewstate));
	if(this.setLangPar){
		formparams.add(new BasicNameValuePair("index_form:language", language));
	}
	
	UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams,
			Consts.UTF_8);
	httppost.setEntity(entity);
	HttpResponse response = client.execute(httppost);

	Document doc = Jsoup.parse(responseparser.responseToString(response));
	Elements answer = doc.select("div.global-presentation-details>h3>a");
	NodeVisitor nv = new NodeVisitor() {
		public void tail(Node node, int depth) {
			if (depth == 0)
				resultSet.add(node.attr("href"));
		}

		public void head(Node arg0, int arg1) {
			// do nothing here
		}
	};
	answer.traverse(nv);
	question.setGoldenAnswers(resultSet);

	Elements codeElements = doc.select("div#sparqlQuery pre");
	if (codeElements.size() > 0) {
		Element sparqlElement = codeElements.get(0);
		Elements codeChildren = sparqlElement.children();
		for (Element c : codeChildren) {
			c.remove();
		}
		question.setSparqlQuery(sparqlElement.text());
	}
}
 

/**
 * Perform a depth-first traversal through this node and its descendants.
 * @param nodeVisitor the visitor callbacks to perform on each node
 * @return this node, for chaining
 */
public Node traverse(NodeVisitor nodeVisitor) {
    Validate.notNull(nodeVisitor);
    NodeTraversor.traverse(nodeVisitor, this);
    return this;
}
 

/**
 * Perform a depth-first traversal through this node and its descendants.
 * @param nodeVisitor the visitor callbacks to perform on each node
 * @return this node, for chaining
 */
public Node traverse(NodeVisitor nodeVisitor) {
    Validate.notNull(nodeVisitor);
    NodeTraversor.traverse(nodeVisitor, this);
    return this;
}