first version of FeedReader

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3829 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/FeedReader_p.html

@@ -0,0 +1,24 @@
+<!--HEADER for FeedReader_p.html 
+ <title>#[clientname]#'s feed reader</title> 
+ end of HEADER-->
+#(page)#
+please select your feed with ?url=Feedurl&max=5&offset=1 (to be implemented in html ;))
+::
+<dl>
+	<dt>Title</dt>
+	<dd>#[title]#</dd>
+	#(hasAuthor)#::<dt>Author</dt>
+	<dd>#[author]#</dd>#(/hasAuthor)#
+	<dt>Description</dt>
+	<dd>#[description]#</dd>
+</dl>
+
+<dl>
+#{items}#
+	<dt><a href="#[link]#">#[title]#</a></dt>
+	<dd style="border: thin solid red">#[description]#</dd>
+#{/items}#
+</dl>
+::
+Error
+#(/page)#

htroot/FeedReader_p.java

@@ -0,0 +1,92 @@
+//FeedReader_p.java
+//------------
+// part of YACY
+//
+// (C) 2007 Alexander Schier
+//
+// last change: $LastChangedDate:  $ by $LastChangedBy: $
+// $LastChangedRevision: $
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Collection;
+import java.util.Iterator;
+
+import de.anomic.http.httpHeader;
+import de.anomic.server.serverObjects;
+import de.anomic.server.serverSwitch;
+import de.anomic.server.servletProperties;
+import de.nava.informa.core.ChannelIF;
+import de.nava.informa.core.ParseException;
+import de.nava.informa.impl.basic.ChannelBuilder;
+import de.nava.informa.impl.basic.Item;
+import de.nava.informa.parsers.FeedParser;
+
+public class FeedReader_p {
+    
+    
+    public static servletProperties respond(httpHeader header, serverObjects post, serverSwitch env) {
+        servletProperties prop = new servletProperties();
+        prop.put("SUPERTEMPLATE", "/env/page.html");
+        
+        URL url;
+		try {
+			if(post!=null){
+				url = new URL((String) post.get("url"));
+				int maxitems=Integer.parseInt(post.get("max", "0"));
+				int offset=Integer.parseInt(post.get("offset", "0")); //offset to the first displayed item
+				ChannelBuilder builder=new ChannelBuilder();
+				ChannelIF channel=FeedParser.parse(builder, url);
+				prop.put("page_title", channel.getTitle());
+				if(channel.getCreator()!=null){
+					prop.put("page_hasAuthor", 1);
+					prop.put("page_hasAuthor_author", channel.getCreator());
+				}else
+					prop.put("page_hasAuthor", 0);
+				prop.put("page_description", channel.getDescription());
+
+				Collection feedItems=channel.getItems();
+				if(!feedItems.isEmpty()){
+					Iterator it=feedItems.iterator();
+					int count=0;
+					while(it.hasNext() && (maxitems==0 || count<maxitems)){
+						Item item=(Item)it.next();
+						prop.put("page_items_"+count+"_author", item.getCreator());
+						prop.put("page_items_"+count+"_title", item.getTitle());
+						prop.put("page_items_"+count+"_link", item.getLink().toString());
+						prop.putASIS("page_items_"+count+"_description", item.getDescription());
+						prop.put("page_items_"+count+"_date", item.getDate());
+						if(! (offset-- >0)) //first check, if there still is an offset. if yes, skip count++, so the next item will overwrite this item. then decrement offset.
+							count++;
+					}
+					prop.put("page_items", count);
+				}
+				prop.put("page", 1);
+			}
+		} catch (MalformedURLException e) {
+			prop.put("page", 2);
+		} catch (IOException e) {
+			prop.put("page", 2);
+		} catch (ParseException e) {
+			prop.put("page", 2);
+		}
+        
+        // return rewrite properties
+        return prop;
+    }
+}