archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/xml/XMLHelper.java

   1 package com.quantum.util.xml;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.io.OutputStream;
   6 import java.io.Writer;
   7
   8 import javax.xml.parsers.DocumentBuilder;
   9 import javax.xml.parsers.DocumentBuilderFactory;
  10 import javax.xml.parsers.FactoryConfigurationError;
  11 import javax.xml.parsers.ParserConfigurationException;
  12
  13 import org.apache.xml.serialize.DOMSerializer;
  14 import org.apache.xml.serialize.OutputFormat;
  15 import org.apache.xml.serialize.XMLSerializer;
  16 import org.w3c.dom.Document;
  17 import org.xml.sax.SAXException;
  18
  19
  20 /**
  21  * <p>This class constructs a pretty-printing XML Serializer
  22  *
  23  * @author BC
  24  */
  25 public class XMLHelper {
  26
  27     private XMLHelper() {}
  28
  29     public static DOMSerializer createDOMSerializer(Writer writer)
  30         throws IOException {
  31         XMLSerializer serializer = new XMLSerializer(writer, createOutputFormat());
  32         return serializer.asDOMSerializer();
  33     }
  34
  35     public static DOMSerializer createDOMSerializer(OutputStream stream)
  36         throws IOException {
  37         XMLSerializer serializer = new XMLSerializer(stream, createOutputFormat());
  38         return serializer.asDOMSerializer();
  39     }
  40     private static OutputFormat createOutputFormat() {
  41         OutputFormat format = new OutputFormat();
  42         format.setIndenting(true);
  43         format.setLineWidth(80);
  44         return format;
  45     }
  46
  47     public static Document createEmptyDocument() throws ParserConfigurationException {
  48         DocumentBuilder builder = createDocumentBuilder();
  49         return builder.newDocument();
  50     }
  51
  52     public static Document createFromInputStream(InputStream stream)
  53         throws IOException, SAXException, ParserConfigurationException {
  54         DocumentBuilder builder = createDocumentBuilder();
  55         return builder.parse(stream);
  56     }
  57
  58     private static DocumentBuilder createDocumentBuilder()
  59         throws FactoryConfigurationError, ParserConfigurationException {
  60         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  61         return factory.newDocumentBuilder();
  62     }
  63
  64     public static void write(Writer writer, Document document)
  65         throws IOException {
  66         createDOMSerializer(writer).serialize(document);
  67     }
  68
  69     public static void write(OutputStream stream, Document document)
  70         throws IOException {
  71         createDOMSerializer(stream).serialize(document);
  72     }
  73 }