/*
* Copyright (C) 2011 Mats Hofman <http://matshofman.nl/contact/>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.ijoomer.common.classes;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class RssHandler extends DefaultHandler {
private RssFeed rssFeed;
private RssItem rssItem;
private StringBuilder stringBuilder;
@Override
public void startDocument() {
rssFeed = new RssFeed();
}
/**
* Return the parsed RssFeed with it's RssItems
* @return
*/
public RssFeed getResult() {
return rssFeed;
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) {
stringBuilder = new StringBuilder();
if(qName.equals("item") && rssFeed != null) {
rssItem = new RssItem();
rssItem.setFeed(rssFeed);
rssFeed.addRssItem(rssItem);
}
}
@Override
public void characters(char[] ch, int start, int length) {
stringBuilder.append(ch, start, length);
}
@Override
public void endElement(String uri, String localName, String qName) {
if(rssFeed != null && rssItem == null) {
// Parse feed properties
try {
if (qName != null && qName.length() > 0) {
String methodName = "set" + qName.substring(0, 1).toUpperCase() + qName.substring(1);
Method method = rssFeed.getClass().getMethod(methodName, String.class);
method.invoke(rssFeed, stringBuilder.toString());
}
} catch (SecurityException e) {
} catch (NoSuchMethodException e) {
} catch (IllegalArgumentException e) {
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
} else if (rssItem != null) {
// Parse item properties
try {
if(qName.equals("content:encoded"))
qName = "content";
String methodName = "set" + qName.substring(0, 1).toUpperCase() + qName.substring(1);
Method method = rssItem.getClass().getMethod(methodName, String.class);
method.invoke(rssItem, stringBuilder.toString());
} catch (SecurityException e) {
} catch (NoSuchMethodException e) {
} catch (IllegalArgumentException e) {
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
}
}
}