package com.sun.syndication.io.impl;
import com.sun.syndication.feed.WireFeed;
import com.sun.syndication.feed.module.Extendable;
import com.sun.syndication.io.WireFeedParser;
import java.util.ArrayList;
import java.util.Iterator;
import org.jdom2.Element;
import java.util.List;
import org.jdom2.Namespace;
import org.jdom2.Attribute;
/**
* @author Alejandro Abdelnur
*/
public abstract class BaseWireFeedParser implements WireFeedParser {
/**
* [TYPE].feed.ModuleParser.classes= [className] ...
*
*/
private static final String FEED_MODULE_PARSERS_POSFIX_KEY = ".feed.ModuleParser.classes";
/**
* [TYPE].item.ModuleParser.classes= [className] ...
*
*/
private static final String ITEM_MODULE_PARSERS_POSFIX_KEY = ".item.ModuleParser.classes";
/**
* [TYPE].person.ModuleParser.classes= [className] ...
*
*/
private static final String PERSON_MODULE_PARSERS_POSFIX_KEY = ".person.ModuleParser.classes";
private String _type;
private ModuleParsers _feedModuleParsers;
private ModuleParsers _itemModuleParsers;
private ModuleParsers _personModuleParsers;
private Namespace _namespace;
protected BaseWireFeedParser(String type, Namespace namespace) {
_type = type;
_namespace = namespace;
_feedModuleParsers = new ModuleParsers(type+FEED_MODULE_PARSERS_POSFIX_KEY, this);
_itemModuleParsers = new ModuleParsers(type+ITEM_MODULE_PARSERS_POSFIX_KEY, this);
_personModuleParsers = new ModuleParsers(type+PERSON_MODULE_PARSERS_POSFIX_KEY, this);
}
/**
* Returns the type of feed the parser handles.
* <p>
* @see WireFeed for details on the format of this string.
* <p>
* @return the type of feed the parser handles.
*
*/
public String getType() {
return _type;
}
protected List parseFeedModules(Element feedElement) {
return _feedModuleParsers.parseModules(feedElement);
}
protected List parseItemModules(Element itemElement) {
return _itemModuleParsers.parseModules(itemElement);
}
protected List parsePersonModules(Element itemElement) {
return _personModuleParsers.parseModules(itemElement);
}
protected List extractForeignMarkup(Element e, Extendable ext, Namespace basens) {
ArrayList foreignMarkup = new ArrayList();
Iterator children = e.getChildren().iterator();
while (children.hasNext()) {
Element elem = (Element)children.next();
if (
// if elemet not in the RSS namespace
!basens.equals(elem.getNamespace())
// and elem was not handled by a module
&& null == ext.getModule(elem.getNamespaceURI())) {
// save it as foreign markup,
// but we can't detach it while we're iterating
foreignMarkup.add(elem.clone());
}
}
// Now we can detach the foreign markup elements
Iterator fm = foreignMarkup.iterator();
while (fm.hasNext()) {
Element elem = (Element)fm.next();
elem.detach();
}
return foreignMarkup;
}
protected Attribute getAttribute(Element e, String attributeName) {
Attribute attribute = e.getAttribute(attributeName);
if (attribute == null) {
attribute = e.getAttribute(attributeName, _namespace);
}
return attribute;
}
protected String getAttributeValue(Element e, String attributeName) {
Attribute attr = getAttribute(e, attributeName);
return (attr != null) ? attr.getValue() : null;
}
}