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package rssviewer.parser;
import java.io.InputStream;
import javafx.data.pull.Event;
import javafx.data.pull.PullParser;
import javafx.data.xml.QName;
import rssviewer.model.Channel;
import rssviewer.model.Item;
public class RSSPullParser {
public function parse(input:InputStream):Channel[] {
var channel: Channel[];
var tmpChannel = null;
var tmpItem = null;
var itemTag = false;
def parser = PullParser {
input: input
onEvent:function(event:Event) {
if (event.type == PullParser.START_ELEMENT) {
if(event.qname.name == "channel" and event.level == 1) {
tmpChannel = Channel{};
} else if(event.qname.name == "item" and event.level == 2) {
tmpItem = Item{};
itemTag = true;
}
} else if(event.type == PullParser.END_ELEMENT) {
if(event.qname.name == "channel" and event.level == 1) {
if(tmpChannel != null) {
insert tmpChannel into channel;
tmpChannel = null;
}
} else if(event.qname.name == "item" and event.level == 2) {
if(tmpItem != null) {
insert tmpItem into tmpChannel.item;
tmpItem = null;
itemTag = false;
}
}
} else if (event.type == PullParser.TEXT) {
if(event.text.trim().length() > 0) {
if(event.qname.name == "title" and event.level == 2) {
tmpChannel.title = event.text;
} else if(event.qname.name == "link" and event.level == 2) {
tmpChannel.link = event.text;
} else if(event.qname.name == "language" and event.level == 2) {
tmpChannel.language = event.text;
} else if(event.qname.name == "webMaster" and event.level == 2) {
tmpChannel.webMaster = event.text;
} else if(event.qname.name == "copyright" and event.level == 2) {
tmpChannel.copyright = event.text;
} else if(event.qname.name == "pubDate" and event.level == 2) {
tmpChannel.pubDate = event.text;
} else if(event.qname.name == "lastBuildDate" and event.level == 2) {
tmpChannel.lastBuildDate = event.text;
} else if(itemTag) {
if(event.qname.name == "title" and event.level == 3) {
tmpItem.title = event.text;
} else if(event.qname.name == "link" and event.level == 3) {
tmpItem.link = event.text;
} else if(event.qname.name == "pubDate" and event.level == 3) {
tmpItem.pubDate = event.text;
} else if(event.qname.name == "description" and event.level == 3) {
tmpItem.description = event.text;
}
} else {
if(event.qname.name == "title" and event.level == 3) {
tmpChannel.imageTitle = event.text;
} else if(event.qname.name == "url" and event.level == 3) {
tmpChannel.imageURL = event.text;
} else if(event.qname.name == "link" and event.level == 3) {
tmpChannel.imageLink = event.text;
}
}
}
} else if (event.type == PullParser.CDATA) {
if(event.text.trim().length() > 0) {
if(itemTag) {
if(event.qname.name == "description" and event.level == 3) {
tmpItem.description = event.text;
}
}
}
}
}
}
parser.parse();
return channel;
}
}