/* 
    P/P   *  Method: net.sourceforge.pebble.web.tagext.NewsFeedReaderTag__static_init
          */
     1  /*
     2   * Copyright (c) 2003-2006, Simon Brown
     3   * All rights reserved.
     4   *
     5   * Redistribution and use in source and binary forms, with or without
     6   * modification, are permitted provided that the following conditions are met:
     7   *
     8   *   - Redistributions of source code must retain the above copyright
     9   *     notice, this list of conditions and the following disclaimer.
    10   *
    11   *   - Redistributions in binary form must reproduce the above copyright
    12   *     notice, this list of conditions and the following disclaimer in
    13   *     the documentation and/or other materials provided with the
    14   *     distribution.
    15   *
    16   *   - Neither the name of Pebble nor the names of its contributors may
    17   *     be used to endorse or promote products derived from this software
    18   *     without specific prior written permission.
    19   *
    20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    30   * POSSIBILITY OF SUCH DAMAGE.
    31   */
    32  package net.sourceforge.pebble.web.tagext;
    33  
    34  import net.sourceforge.pebble.aggregator.NewsFeed;
    35  import net.sourceforge.pebble.aggregator.NewsFeedCache;
    36  import net.sourceforge.pebble.domain.Blog;
    37  import net.sourceforge.pebble.Constants;
    38  
    39  import javax.servlet.jsp.JspException;
    40  import javax.servlet.jsp.JspContext;
    41  import javax.servlet.jsp.PageContext;
    42  import javax.servlet.jsp.tagext.SimpleTagSupport;
    43  import java.io.IOException;
    44  
    45  import org.apache.commons.logging.Log;
    46  import org.apache.commons.logging.LogFactory;
    47  
    48  /**
    49   * Gets entries for the specified news feed. 
    50   *
    51   * @author    Simon Brown
    52   */
    53  public class NewsFeedReaderTag extends SimpleTagSupport {
    54  
    55    private static final Log log = LogFactory.getLog(NewsFeedReaderTag.class);
    56  
    57    private String url;
    58  
    59    public void doTag() throws JspException, IOException {
    60      NewsFeed feed = NewsFeedCache.getInstance().getFeed(url);
    61      getJspContext().setAttribute("feedEntries", feed.getEntries());
    62    }
    63  
    64    public void setUrl(String url) {
    65      this.url = url;
    66  
    67      if (url != null) {
    68        Blog blog = (Blog)getJspContext().getAttribute(Constants.BLOG_KEY, PageContext.REQUEST_SCOPE);
    69        NewsFeedCache.getInstance().addSubscription(blog, url);
    70      }
    71    }
    72  
    73  }