Example usage for org.w3c.dom.html HTMLCollection getLength

Introduction

In this page you can find the example usage for org.w3c.dom.html HTMLCollection getLength.

Prototype

public int getLength();

Source Link

Document

This attribute specifies the length or size of the list.

Usage

From source file:org.sakaiproject.kernel.mailman.impl.MailmanManagerImpl.java

public List<String> getLists() throws MailmanException {
    HttpClient client = new HttpClient(proxyClientService.getHttpConnectionManager());
    GetMethod get = new GetMethod(getMailmanUrl("/admin"));
    List<String> lists = new ArrayList<String>();
    try {/*from   w  w w  .  j a va 2 s . co m*/
        int result = client.executeMethod(get);
        if (result != HttpServletResponse.SC_OK) {
            LOGGER.warn("Got " + result + " from http request");
            throw new MailmanException("Unable to list mailinglists");
        }
        DOMParser parser = new DOMParser();
        parser.parse(new InputSource(get.getResponseBodyAsStream()));
        Document doc = parser.getDocument();
        NodeList tableNodes = doc.getElementsByTagName("table");
        if (tableNodes.getLength() < 2) {
            throw new MailmanException("Unrecognised page format.");
        }
        HTMLTableElement mainTable = (HTMLTableElement) tableNodes.item(0);
        HTMLCollection rows = mainTable.getRows();
        for (int i = 4; i < rows.getLength(); i++) {
            lists.add(parseListNameFromRow((HTMLTableRowElement) rows.item(i)));
        }
    } catch (SAXException e) {
        throw new MailmanException("Error parsing mailman response", e);
    } catch (HttpException e) {
        throw new MailmanException("HTTP Exception communicating with mailman server", e);
    } catch (IOException e) {
        throw new MailmanException("IOException communicating with mailman server", e);
    } finally {
        get.releaseConnection();
    }
    return lists;
}

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From source file:org.sakaiproject.kernel.mailman.impl.MailmanManagerImpl.java

private String parseListNameFromRow(HTMLTableRowElement item) throws MailmanException {
    HTMLCollection cells = item.getCells();
    if (cells.getLength() != 2) {
        throw new MailmanException("Unexpected table row format");
    }/*from   w w  w. j a  v a 2  s  .c  om*/
    return cells.item(0).getTextContent();
}

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