Example usage for org.apache.commons.digester.rss RSSDigester RSSDigester

Introduction

In this page you can find the example usage for org.apache.commons.digester.rss RSSDigester RSSDigester.

Prototype

RSSDigester

Source Link

Usage

From source file:org.apache.struts.scaffold.rss.ParseRss.java

/**
 * Read and parse RSS file found at a given
 * path, save the Channel bean in request scope,
 * and forward to "success"./*from www .  ja v  a  2s . c o  m*/
 *
 * @expects path={uri} on command line or as parameter property to ActionMapping.
 * @expects an input page or error forwarding if exception digesting RSS
 * @param mapping The ActionMapping used to select this instance
 * @param actionForm The optional ActionForm bean for this request (if any)
 * @param request The HTTP request we are processing
 * @param response The resonse we are creating
 * @param errors Our ActionErrors collection
 */
public void executeLogic(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    Channel channel = null;

    String path = request.getParameter(Tokens.PATH);
    if (path == null)
        path = mapping.getParameter();

    RSSDigester digester = new RSSDigester();
    channel = (Channel) digester.parse(path);

    request.setAttribute(CHANNEL_KEY, channel);

}

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From source file:org.apache.struts.webapp.tiles.rssChannel.Channels.java

/**
 * Main process of class. Reads, parses/* w w  w .  j a v  a  2 s .  co  m*/
 */
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    log.debug("Enter Rss Channel Action");

    // Try to retrieve tile context
    ComponentContext context = ComponentContext.getContext(request);
    if (context == null) {
        throw new ServletException("This action must be called by a Tile, not directly");
    }

    ActionMessages errors = new ActionMessages();

    // -- Retrieve parameters --
    // Urls can come from a list, or from a single attribute.

    List channels = (List) context.getAttribute(CHANNEL_URLS_KEY);
    if (channels == null) {
        Object url = context.getAttribute(CHANNEL_URL_KEY);
        channels = new ArrayList(1);
        channels.add(url);
    }

    log.debug("urls count" + channels.size());

    // -- Loop through channels --
    ArrayList channelBeans = new ArrayList(channels.size());
    try {
        for (int i = 0; i < channels.size(); i++) {
            RSSDigester digester = new RSSDigester();
            String url = (String) channels.get(i);
            // Add application path if needed
            if (url.startsWith("/")) {
                url = toFullUrl(request, url);
            }

            log.debug("Channel url=" + url);

            Channel obj = (Channel) digester.parse(url);

            log.debug("Channel:" + obj);

            channelBeans.add(obj);
        }
    } catch (Throwable t) {
        errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("rss.access.error"));

        servlet.log(t.toString());
    }

    // -- Handle Errors ---
    if (!errors.isEmpty()) {
        this.saveErrors(request, errors);

        if (mapping.getInput() != null) {
            return new ActionForward(mapping.getInput());
        }

        // If no input page, use error forwarding

        log.debug("Exit Rss Channel Action : error");

        return mapping.findForward("error");
    }

    // -- Save Bean, and Continue  ---

    log.debug("Exit Rss Channel Action");

    // Use Tile context to pass channels
    context.putAttribute(CHANNELS_KEY, channelBeans);

    return mapping.findForward("continue");
}

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From source file:org.apache.struts.webapp.tiles.rssChannel.RssChannelsAction.java

/**
 * Main process of class. Reads, parses//from ww w . jav a2 s .  co  m
 * @param context The current Tile context, containing Tile attributes.
 * @param mapping The ActionMapping used to select this instance.
 * @param form The optional ActionForm bean for this request (if any).
 * @param request The HTTP request we are processing.
 * @param response The HTTP response we are creating.
 *
 * @exception Exception if the application business logic throws
 *  an exception
 * @since Struts 1.1
 */
public ActionForward execute(ComponentContext context, ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) throws Exception {

    log.debug("Enter Rss Channel Action");

    ActionMessages errors = new ActionMessages();

    // -- Retrieve parameters --
    // Urls can come from a list, or from a single attribute.

    List channels = (List) context.getAttribute(CHANNEL_URLS_KEY);
    if (channels == null) {
        Object url = context.getAttribute(CHANNEL_URL_KEY);
        channels = new ArrayList(1);
        channels.add(url);
    }

    log.debug("urls count" + channels.size());

    // -- Loop through channels --
    List channelBeans = new ArrayList(channels.size());
    try {
        for (int i = 0; i < channels.size(); i++) {
            RSSDigester digester = new RSSDigester();
            String url = (String) channels.get(i);
            // Add application path if needed
            if (url.startsWith("/")) {
                url = toFullUrl(request, url);
            }

            log.debug("Channel url=" + url);

            Channel obj = (Channel) digester.parse(url);

            log.debug("Channel:" + obj);

            channelBeans.add(obj);
        }

    } catch (Throwable t) {
        errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("rss.access.error"));

        servlet.log(t.toString());
    }

    // -- Handle Errors ---
    if (!errors.isEmpty()) {
        this.saveErrors(request, errors);
        // If no input page, use error forwarding

        log.debug("Exit Rss Channel Action : error");

        return null;
    }

    // -- Save Bean, and Continue  ---

    log.debug("Exit Rss Channel Action");

    // Use Tile context to pass channels
    context.putAttribute(CHANNELS_KEY, channelBeans);

    return null;
}

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From source file:org.openamf.examples.RSS.java

public Channel getChannel(String rssURL) throws IOException, SAXException {

    Channel channel = null;//ww  w. ja va 2  s.c  om

    RSSDigester digester = new RSSDigester();

    channel = (Channel) digester.parse(rssURL);
    String url = "http://www.openamf.org/javadocs/index.html";
    String desc = channel.getDescription() + "<br/><br/>Click <A href='" + url
            + "' target='_blank'><U>here</U></A> to view Java Doc's";

    channel.setDescription(desc);

    return channel;
}

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