/*
* Copyright 2004 Sun Microsystems, Inc.
*
* 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.rometools.rome.io.impl;
import java.util.List;
import org.jdom2.Element;
import org.jdom2.Namespace;
import com.rometools.rome.feed.rss.Channel;
import com.rometools.rome.feed.rss.Description;
import com.rometools.rome.feed.rss.Item;
import com.rometools.rome.io.FeedException;
/**
* Feed Generator for RSS 1.0
* <p/>
*
* @author Elaine Chien
*
*/
public class RSS10Generator extends RSS090Generator {
private static final String RSS_URI = "http://purl.org/rss/1.0/";
private static final Namespace RSS_NS = Namespace.getNamespace(RSS_URI);
public RSS10Generator() {
super("rss_1.0");
}
protected RSS10Generator(final String feedType) {
super(feedType);
}
@Override
protected Namespace getFeedNamespace() {
return RSS_NS;
}
@Override
protected void populateChannel(final Channel channel, final Element eChannel) {
super.populateChannel(channel, eChannel);
final String channelUri = channel.getUri();
if (channelUri != null) {
eChannel.setAttribute("about", channelUri, getRDFNamespace());
}
final List<Item> items = channel.getItems();
if (!items.isEmpty()) {
final Element eItems = new Element("items", getFeedNamespace());
final Element eSeq = new Element("Seq", getRDFNamespace());
for (final Item item : items) {
final Element lis = new Element("li", getRDFNamespace());
final String uri = item.getUri();
if (uri != null) {
lis.setAttribute("resource", uri, getRDFNamespace());
}
eSeq.addContent(lis);
}
eItems.addContent(eSeq);
eChannel.addContent(eItems);
}
}
@Override
protected void populateItem(final Item item, final Element eItem, final int index) {
super.populateItem(item, eItem, index);
final String link = item.getLink();
final String uri = item.getUri();
if (uri != null) {
eItem.setAttribute("about", uri, getRDFNamespace());
} else if (link != null) {
eItem.setAttribute("about", link, getRDFNamespace());
}
final Description description = item.getDescription();
if (description != null) {
eItem.addContent(generateSimpleElement("description", description.getValue()));
}
if (item.getModule(getContentNamespace().getURI()) == null && item.getContent() != null) {
final Element elem = new Element("encoded", getContentNamespace());
elem.addContent(item.getContent().getValue());
eItem.addContent(elem);
}
}
@Override
protected void checkChannelConstraints(final Element eChannel) throws FeedException {
checkNotNullAndLength(eChannel, "title", 0, -1);
checkNotNullAndLength(eChannel, "description", 0, -1);
checkNotNullAndLength(eChannel, "link", 0, -1);
}
@Override
protected void checkImageConstraints(final Element eImage) throws FeedException {
checkNotNullAndLength(eImage, "title", 0, -1);
checkNotNullAndLength(eImage, "url", 0, -1);
checkNotNullAndLength(eImage, "link", 0, -1);
}
@Override
protected void checkTextInputConstraints(final Element eTextInput) throws FeedException {
checkNotNullAndLength(eTextInput, "title", 0, -1);
checkNotNullAndLength(eTextInput, "description", 0, -1);
checkNotNullAndLength(eTextInput, "name", 0, -1);
checkNotNullAndLength(eTextInput, "link", 0, -1);
}
@Override
protected void checkItemsConstraints(final Element parent) throws FeedException {
}
@Override
protected void checkItemConstraints(final Element eItem) throws FeedException {
checkNotNullAndLength(eItem, "title", 0, -1);
checkNotNullAndLength(eItem, "link", 0, -1);
}
}