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February 7, 2014 21:45
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xmlstudy
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| package xmlstudy; | |
| import javax.xml.stream.*; | |
| import java.net.URL; | |
| import java.io.*; | |
| /* | |
| * XMLStreamReader is the key interface in StAX. This interface represents a cursor | |
| that's moved across an XML document from beginning to end. At any given time, this | |
| cursor points at one thing: a text node, a start-tag, a comment, the beginning of | |
| the document, etc. The cursor always moves forward, never backward, and normally | |
| only moves one item at a time. You invoke methods such as getName and getText on | |
| the XMLStreamReader to retrieve information about the item the cursor is currently | |
| positioned at. | |
| http://www.xml.com/pub/a/2003/09/17/stax.html | |
| */ | |
| public class StAXReaderPOC { | |
| public static void main(String[] args) | |
| { | |
| if (args.length == 0) { | |
| System.err.println("Usage: java XHTMLOutliner url" ); | |
| return; | |
| } | |
| String input = args[0]; | |
| try { | |
| //URL u = new URL(input); | |
| //InputStream in = u.openStream(); | |
| File u = new File(input); | |
| FileInputStream in = new FileInputStream(u); | |
| XMLInputFactory factory = XMLInputFactory.newInstance(); | |
| XMLStreamReader parser = factory.createXMLStreamReader(in); | |
| int inHeader = 0; | |
| int sideHeader = 0; | |
| for (int event = parser.next(); | |
| event != XMLStreamConstants.END_DOCUMENT; | |
| event = parser.next()) { | |
| switch (event) { | |
| case XMLStreamConstants.START_ELEMENT: | |
| if(isZoneSide(parser)){ | |
| sideHeader+=1; | |
| break; | |
| } | |
| if(isCard(parser.getLocalName())) | |
| { | |
| int copies = Integer.parseInt(parser.getAttributeValue(0)); | |
| //for (int i = 0 ; i < copies ; i++) | |
| if(sideHeader > 0){ | |
| System.out.println("SB: "+copies +" "+parser.getAttributeValue(2)); | |
| }else{ | |
| System.out.println(copies +" "+parser.getAttributeValue(2)); | |
| } | |
| inHeader++; | |
| } | |
| break; | |
| case XMLStreamConstants.END_ELEMENT: | |
| if(isCard(parser.getLocalName())) | |
| inHeader--; | |
| //System.out.println(parser.getLocalName()); | |
| break; | |
| case XMLStreamConstants.CHARACTERS: | |
| if(inHeader > 0){ | |
| System.out.print(parser.getText()); | |
| } | |
| break; | |
| case XMLStreamConstants.CDATA: | |
| if(inHeader > 0){ | |
| System.out.print(parser.getText()); | |
| } | |
| break; | |
| } // end switch | |
| } // end while | |
| parser.close(); | |
| } | |
| catch (XMLStreamException ex) { | |
| return; | |
| //ex.printStackTrace(); | |
| } | |
| catch (IOException ex) { | |
| System.out.println("IOException while parsing " + input); | |
| ex.printStackTrace(); | |
| } | |
| } | |
| private static boolean isZoneSide(XMLStreamReader parser){ | |
| if (parser.getLocalName().equals("zone") && parser.getAttributeCount() > 0) | |
| if(parser.getAttributeValue(0).equals("side")) | |
| return true; | |
| return false; | |
| } | |
| private static boolean isCard(String name){ | |
| if (name.equals("card")) | |
| return true; | |
| return false; | |
| } | |
| public void parseXHTMLHeaders(String[] args) | |
| { | |
| if (args.length == 0) { | |
| System.err.println("Usage: java XHTMLOutliner url" ); | |
| return; | |
| } | |
| String input = args[0]; | |
| try { | |
| URL u = new URL(input); | |
| InputStream in = u.openStream(); | |
| XMLInputFactory factory = XMLInputFactory.newInstance(); | |
| XMLStreamReader parser = factory.createXMLStreamReader(in); | |
| int inHeader = 0; | |
| for (int event = parser.next(); | |
| event != XMLStreamConstants.END_DOCUMENT; | |
| event = parser.next()) { | |
| switch (event) { | |
| case XMLStreamConstants.START_ELEMENT: | |
| if (isHeader(parser.getLocalName())) { | |
| inHeader++; | |
| } | |
| break; | |
| case XMLStreamConstants.END_ELEMENT: | |
| if (isHeader(parser.getLocalName())) { | |
| inHeader--; | |
| if (inHeader == 0) System.out.println(); | |
| } | |
| break; | |
| case XMLStreamConstants.CHARACTERS: | |
| if (inHeader > 0) System.out.print(parser.getText()); | |
| break; | |
| case XMLStreamConstants.CDATA: | |
| if (inHeader > 0) System.out.print(parser.getText()); | |
| break; | |
| } // end switch | |
| } // end while | |
| parser.close(); | |
| } | |
| catch (XMLStreamException ex) { | |
| System.out.println(ex); | |
| } | |
| catch (IOException ex) { | |
| System.out.println("IOException while parsing " + input); | |
| } | |
| } | |
| /** | |
| * Determine if this is an XHTML heading element or not | |
| * @param name tag name | |
| * @return boolean true if this is h1, h2, h3, h4, h5, or h6; | |
| * false otherwise | |
| */ | |
| private static boolean isHeader(String name) { | |
| if (name.equals("h1")) return true; | |
| if (name.equals("h2")) return true; | |
| if (name.equals("h3")) return true; | |
| if (name.equals("h4")) return true; | |
| if (name.equals("h5")) return true; | |
| if (name.equals("h6")) return true; | |
| return false; | |
| } | |
| } |
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