RssFeed.parse constructor

RssFeed.parse(String xmlString)

Implementation

factory RssFeed.parse(String xmlString) {
  final document = XmlDocument.parse(xmlString);
  XmlElement channelElement;

  try {
    channelElement = document.findAllElements('channel').first;
  } on StateError {
    throw ArgumentError('channel not found');
  }

  return RssFeed(
    title: findElementOrNull(channelElement, 'title')?.innerText,
    author: findElementOrNull(channelElement, 'author')?.innerText,
    description: findElementOrNull(channelElement, 'description')?.innerText,
    link: findElementOrNull(channelElement, 'link')?.innerText,
    items: channelElement
        .findElements('item')
        .map((element) => RssItem.parse(element))
        .toList(),
    image: RssImage.parse(findElementOrNull(channelElement, 'image')),
    cloud: RssCloud.parse(findElementOrNull(channelElement, 'cloud')),
    categories: channelElement
        .findElements('category')
        .map((element) => RssCategory.parse(element))
        .toList(),
    skipDays: findElementOrNull(channelElement, 'skipDays')
            ?.findAllElements('day')
            .map((element) => element.innerText)
            .toList() ??
        <String>[],
    skipHours: findElementOrNull(channelElement, 'skipHours')
            ?.findAllElements('hour')
            .map((element) => int.tryParse(element.innerText) ?? 0)
            .toList() ??
        <int>[],
    lastBuildDate:
        findElementOrNull(channelElement, 'lastBuildDate')?.innerText,
    language: findElementOrNull(channelElement, 'language')?.innerText,
    generator: findElementOrNull(channelElement, 'generator')?.innerText,
    copyright: findElementOrNull(channelElement, 'copyright')?.innerText,
    docs: findElementOrNull(channelElement, 'docs')?.innerText,
    managingEditor:
        findElementOrNull(channelElement, 'managingEditor')?.innerText,
    rating: findElementOrNull(channelElement, 'rating')?.innerText,
    medium: findElementOrNull(channelElement, 'medium')?.innerText,
    webMaster: findElementOrNull(channelElement, 'webMaster')?.innerText,
    ttl: int.tryParse(
          findElementOrNull(channelElement, 'ttl')?.innerText ?? '0',
        ) ??
        0,
    dc: DublinCore.parse(channelElement),
    itunes: RssItunes.parse(channelElement),
    podcastIndex: RssPodcastIndex.parse(channelElement),
  );
}